Form 8-K

8-K — APPIAN CORP

Accession: 0001441683-26-000050

Filed: 2026-08-06

Period: 2026-08-06

CIK: 0001441683

SIC: 7372 (SERVICES-PREPACKAGED SOFTWARE)

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — appn-20260806.htm (Primary)

EX-99.1 (appnex991earningsrelease-6.htm)

GRAPHIC (appian2021white-bluefieldaa.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: appn-20260806.htm · Sequence: 1

appn-20260806

false000144168300014416832026-08-062026-08-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 6, 2026

Appian Corporation

(Exact name of Registrant as Specified in Its Charter)

Delaware 001-38098 54-1956084

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(I.R.S. Employer

Identification No.)

7950 Jones Branch Drive

McLean, VA

22102

(Address of principal executive offices) (Zip Code)

Registrant’s Telephone Number, Including Area Code: (703) 442-8844

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Exchange Act:

Title of each class Trading symbol Name of each exchange on which registered

Class A Common Stock APPN The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 2.02 Results of Operations and Financial Condition.

On August 6, 2026, Appian Corporation (the "Company") issued a press release announcing its financial results for the second quarter ended June 30, 2026, as well as information regarding a conference call to discuss these financial results and the Company's recent business highlights and financial outlook. The Company's press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information included in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.

Item 9.01 Financial Statements and Exhibits.

Exhibit No. Description

99.1

Press release dated August 6, 2026

104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Appian Corporation

Date: August 6, 2026

By: /s/ Srdjan Tanjga

Srdjan Tanjga

Chief Financial Officer

EX-99.1

Filename: appnex991earningsrelease-6.htm · Sequence: 2

Document

Exhibit 99.1

Appian Announces Second Quarter 2026 Financial Results

Cloud subscriptions revenue increased 23% year-over-year to $131.7 million.

McLean, VA – August 6, 2026 – Appian (Nasdaq: APPN) today announced financial results for the second quarter ended June 30, 2026.

Second Quarter 2026 Financial Highlights:

•Revenue: Cloud subscriptions revenue was $131.7 million, up 23% compared to the second quarter of 2025. Total subscriptions revenue increased 19% year-over-year to $157.7 million. Professional services revenue was $45.6 million, an increase of 20% compared to the second quarter of 2025. Total revenue was $203.3 million, up 19% compared to the second quarter of 2025. Cloud net annualized recurring revenue (“ARR”) expansion was 115% as of June 30, 2026.

•Operating loss and non-GAAP operating income: GAAP operating loss was $(5.4) million, compared to GAAP operating loss of $(11.0) million for the second quarter of 2025. Non-GAAP operating income was $13.6 million, compared to non-GAAP operating income of $5.6 million for the second quarter of 2025.

•Net loss and non-GAAP net income: GAAP net loss was $(11.8) million, compared to $(0.3) million for the second quarter of 2025. GAAP net loss per share was $(0.16) for the second quarter of 2026, compared to breakeven for the second quarter of 2025. Non-GAAP net income was $9.2 million, compared to $0.3 million for the second quarter of 2025. Non-GAAP net income per share was $0.13, compared to breakeven for the second quarter of 2025.

•Adjusted EBITDA: Adjusted EBITDA was $16.2 million, compared to adjusted EBITDA of $8.1 million for the second quarter of 2025.

•Cash flows: Net cash provided by operating activities was $12.1 million for the three months ended June 30, 2026 compared to $(1.9) million of net cash used by operating activities for the same period in 2025.

A reconciliation of GAAP to non-GAAP financial measures has been provided in the tables following the financial statements in this press release. An explanation of these measures is also included below under the heading “Non-GAAP Financial Measures.”

Financial Outlook:

As of August 6, 2026, guidance for 2026 is as follows:

•Third Quarter 2026 Guidance:

◦Cloud subscriptions revenue is expected to be between $133.0 million and $135.0 million, representing year-over-year growth of 17% to 19%.

◦Total revenue is expected to be between $214.0 million and $218.0 million, representing a year-over-year increase of 14% to 17%.

◦Adjusted EBITDA is expected to be between $30.0 million and $33.0 million.

◦Non-GAAP earnings per share is expected to be between $0.31 and $0.35, assuming weighted average common shares outstanding of 72.6 million.

•Full Year 2026 Guidance:

◦Cloud subscriptions revenue is expected to be between $525.0 million and $529.0 million, representing year-over-year growth of 20% to 21%.

◦Total revenue is expected to be between $845.0 million and $853.0 million, representing a year-over-year increase of 16% to 17%.

◦Adjusted EBITDA is expected to be between $104.0 million and $110.0 million.

◦Non-GAAP earnings per share is expected to be between $1.04 and $1.12, assuming weighted average common shares outstanding of 73.2 million.

Conference Call Details:

Appian will host a conference call today, August 6, 2026, at 8:30 a.m. ET to discuss Appian's financial results for the second quarter ended June 30, 2026 and business outlook.

To access the call, navigate to the following link(1). Once registered, participants can dial in using their phone with a dial in and PIN, or they can choose the Call Me option for instant dial to their phone. The live webcast of the conference call can also be accessed on the Investor Relations page of our website at https://investors.appian.com.

About Appian

Appian provides process automation technology. We automate complex processes in large enterprises and governments. Our platform is known for its unique reliability and scale. We’ve been automating processes for 25 years and understand enterprise operations like no one else. For more information, visit appian.com. [Nasdaq: APPN]

Non-GAAP Financial Measures

To supplement its consolidated financial statements, which are prepared and presented in accordance with GAAP, Appian provides investors with certain non-GAAP financial performance measures. Appian uses these non-GAAP financial performance measures for financial and operational decision-making and as a means to evaluate period-to-period comparisons. Appian’s management believes these non-GAAP financial measures provide meaningful supplemental information regarding Appian’s performance by excluding certain expenses that may not be indicative of our recurring core business operating results. Appian believes both management and investors benefit from referring to these non-GAAP financial measures in assessing Appian’s performance and when planning, forecasting, and analyzing future periods. These non-GAAP financial measures also facilitate management’s internal comparisons to historical performance as well as comparisons to competitors’ operating results. Appian believes these non-GAAP financial measures are useful to investors both because (1) they allow for greater transparency with respect to measures used by management in its financial and operational decision-making and (2) they are used by institutional investors and the analyst community to help them analyze the health of Appian’s business.

The non-GAAP financial performance measures include the following: non-GAAP subscriptions cost of revenue, non-GAAP professional services cost of revenue, non-GAAP total cost of revenue, non-GAAP sales and marketing expense, non-GAAP research and development expense, non-GAAP general and administrative expense, non-GAAP total operating expense, non-GAAP non-operating (expense) income, non-GAAP income tax expense, non-GAAP net income, and non-GAAP net income per share, basic and diluted. These non-GAAP financial performance measures exclude the effect of stock-based compensation expense, unrealized foreign exchange rate gains and losses, certain non-ordinary litigation-related expenses consisting of legal and other professional fees associated with the Pegasystems cases (net of insurance reimbursements), or Litigation Expense, amortization of the judgment

1 https://register-conf.media-server.com/register/BI28813a37ca7a432497f0bb1cdcef1e12

preservation insurance policy, or JPI Amortization, and lease impairments and lease-related charges associated with actions taken to reduce the footprint of our leased office spaces, or Lease Impairment and Lease-Related Charges. While some of these items may be recurring in nature and should not be disregarded in the evaluation of our earnings performance, it is useful to exclude such items when analyzing current results and trends compared to other periods as these items can vary significantly from period to period depending on specific underlying transactions or events that may occur. Therefore, while we may incur or recognize these types of expenses in the future, we believe removing these items for purposes of calculating our non-GAAP financial measures provides investors with a more focused presentation of our ongoing operating performance.

Appian also discusses adjusted EBITDA, a non-GAAP financial performance measure it believes offers a useful view of the overall operation of its businesses. Appian defines adjusted EBITDA as net loss before (1) other expense (income), net, (2) interest expense, (3) income tax expense, (4) depreciation expense and amortization of intangible assets, (5) stock-based compensation expense, (6) Litigation Expense, (7) JPI Amortization, and (8) Lease Impairment and Lease-Related Charges. The most directly comparable GAAP financial measure to adjusted EBITDA is net loss. Users should consider the limitations of using adjusted EBITDA, including the fact this measure does not provide a complete depiction of our operating performance. Adjusted EBITDA is not intended to purport to be an alternative to net loss as a measure of operating performance or to cash flows from operating activities as a measure of liquidity.

The presentation of these non-GAAP financial measures is not intended to be considered in isolation from, as a substitute for, or superior to the financial information prepared and presented in accordance with GAAP, and Appian’s non-GAAP measures may be different from non-GAAP measures used by other companies. For more information on these non-GAAP financial measures, see the reconciliation of these non-GAAP financial measures to their nearest comparable GAAP measures at the end of this press release.

Appian provides guidance ranges for non-GAAP net income per share and adjusted EBITDA; however, we are not able to reconcile these amounts to their comparable GAAP financial measures without unreasonable efforts because certain information necessary to calculate such measures on a GAAP basis is unavailable, subject to high variability, dependent on future events outside of our control, and cannot be predicted. In addition, Appian believes such reconciliations could imply a degree of precision that might be confusing or misleading to investors. The actual effect of the reconciling items that Appian may exclude from these non-GAAP expense numbers, when determined, may be significant to the calculation of the comparable GAAP measures.

Forward-Looking Statements

This press release includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release other than statements of historical facts, including statements regarding Appian’s future financial and business performance for the third quarter and full year 2026, future investment by Appian in its go-to-market initiatives, increased demand for the Appian Platform, market opportunity and plans and objectives for future operations, including Appian’s ability to drive continued subscriptions revenue and total revenue growth, are forward-looking statements. The words “anticipate,” “believe,” “continue,” “estimate,” “expect,” “intend,” “may,” “will,” “plan,” and similar expressions are intended to identify forward-looking statements. Appian has based these forward-looking statements on its current expectations and projections about future events and financial trends that Appian believes may affect its financial condition, results of operations, business strategy, short-term and long-term business operations and objectives, and financial needs. These forward-looking statements are subject to a number of risks and uncertainties, including the risks and uncertainties associated with Appian’s market opportunity and the expansion of its core software markets in general, the opportunity and disruptive impact of AI, the effects of increased competition, as well as innovations by new and existing competitors in its market, Appian’s ability to effectively manage or sustain its growth and to maintain profitability, Appian’s ability to maintain, or strengthen awareness of, its brand, risks and uncertainties associated with the composition and concentration of Appian’s customer base and their demand for its platform and satisfaction with the services provided by Appian, Appian’s ability to operate in compliance with applicable laws and regulations, Appian’s strategic relationships with third parties, and additional risks and uncertainties set forth in the “Risk Factors” section of Appian’s most recent annual report on Form 10-K, quarterly reports on Form 10-Q, and other filings with the Securities and Exchange Commission. Moreover, Appian operates in a very competitive and

rapidly changing environment. New risks emerge from time to time. It is not possible for Appian’s management to predict all risks, nor can Appian assess the impact of all factors on its business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements Appian may make. In light of these risks, uncertainties, and assumptions, Appian cannot guarantee future results, levels of activity, performance, achievements, or events and circumstances reflected in the forward-looking statements will occur. Appian is under no duty to update any of these forward-looking statements after the date of this press release to conform these statements to actual results or revised expectations, except as required by law.

Investor Contact

investors@appian.com

Media Contact

pr@appian.com

APPIAN CORPORATION

CONSOLIDATED BALANCE SHEETS

(in thousands, except par value and share data)

As of

June 30, 2026 December 31, 2025

(unaudited)

Assets

Current assets

Cash and cash equivalents $ 121,111 $ 135,810

Short-term investments and marketable securities 46,755 51,415

Accounts receivable, net of allowance of $3,416 and $3,362, respectively

171,162 255,063

Deferred commissions, current 38,026 35,166

Prepaid expenses and other current assets 32,952 41,970

Total current assets 410,006 519,424

Property and equipment, net of accumulated depreciation of $42,933 and $40,747, respectively

30,667 32,087

Goodwill 27,973 28,811

Intangible assets, net of accumulated amortization of $7,710 and $7,301, respectively

588 1,246

Right-of-use assets for operating leases 30,437 28,075

Deferred commissions, net of current portion 67,376 65,199

Deferred tax assets 4,857 4,850

Other assets 13,809 11,703

Total assets $ 585,713 $ 691,395

Liabilities and Stockholders’ Deficit

Current liabilities

Accounts payable $ 8,077 $ 6,655

Accrued expenses 21,662 18,483

Accrued compensation and related benefits 43,035 61,781

Deferred revenue 314,263 341,281

Debt 9,598 9,598

Operating lease liabilities 14,171 13,181

Other current liabilities 1,012 1,128

Total current liabilities 411,818 452,107

Long-term debt 226,429 231,228

Non-current operating lease liabilities 45,128 45,693

Deferred revenue, non-current 7,208 8,962

Other non-current liabilities 311 398

Total liabilities 690,894 738,388

Stockholders’ deficit

Class A common stock—par value $0.0001; 500,000,000 shares authorized as of June 30, 2026 and December 31, 2025 and 43,504,355 and 43,408,828 shares issued as of June 30, 2026 and December 31, 2025, respectively

4 4

Class B common stock—par value $0.0001; 100,000,000 shares authorized as June 30, 2026 and December 31, 2025 and 31,087,385 and 31,088,085 shares issued as of June 30, 2026 and December 31, 2025, respectively

3 3

Treasury stock at cost, 2,795,084 and 542,288 shares as of June 30, 2026 and December 31, 2025, respectively

(70,391) (16,935)

Additional paid-in capital 623,090 617,318

Accumulated other comprehensive loss (33,624) (36,462)

Accumulated deficit (624,263) (610,921)

Total stockholders’ deficit (105,181) (46,993)

Total liabilities and stockholders’ deficit $ 585,713 $ 691,395

APPIAN CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited, in thousands, except per share data)

Three Months Ended June 30, Six months ended June 30,

2026 2025 2026 2025

Revenue

Subscriptions $ 157,682 $ 132,657 $ 317,993 $ 267,009

Professional services 45,574 37,983 87,443 70,057

Total revenue 203,256 170,640 405,436 337,066

Cost of revenue

Subscriptions 25,409 20,707 48,313 39,228

Professional services 33,104 28,247 64,611 53,766

Total cost of revenue 58,513 48,954 112,924 92,994

Gross profit 144,743 121,686 292,512 244,072

Operating expenses

Sales and marketing 70,113 62,157 134,732 118,467

Research and development 47,305 42,655 93,629 84,485

General and administrative 32,765 27,858 66,435 52,938

Total operating expenses 150,183 132,670 294,796 255,890

Operating loss (5,440) (10,984) (2,284) (11,818)

Other non-operating expense (income)

Other expense (income), net 827 (17,564) 743 (23,280)

Interest expense 3,780 5,319 7,952 10,637

Total other non-operating expense (income) 4,607 (12,245) 8,695 (12,643)

(Loss) income before income taxes (10,047) 1,261 (10,979) 825

Income tax expense 1,770 1,573 2,363 2,314

Net loss $ (11,817) $ (312) $ (13,342) $ (1,489)

Net loss per Class A and Class B share:

Basic and diluted

$ (0.16) $ (0.00) $ (0.18) $ (0.02)

Weighted average common shares outstanding:

Basic and diluted

72,896 74,202 73,348 74,148

APPIAN CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited, in thousands)

Six Months Ended June 30,

2026 2025

Cash flows from operating activities

Net loss $ (13,342) $ (1,489)

Adjustments to reconcile net loss to net cash provided by operating activities

Stock-based compensation 22,449 20,732

Depreciation expense and amortization of intangible assets 4,780 4,970

Bad debt expense 634 550

Amortization of debt issuance costs 300 300

Benefit for deferred income taxes (68) (689)

Foreign currency transaction losses (gains), net 3,372 (20,659)

Changes in assets and liabilities

Accounts receivable 82,946 49,720

Prepaid expenses and other assets 6,991 10,174

Deferred commissions (5,037) 3,228

Accounts payable and accrued expenses 4,298 7,559

Accrued compensation and related benefits (17,348) (3,811)

Other current and non-current liabilities (538) (277)

Deferred revenue (26,590) (25,611)

Operating lease assets and liabilities, net (1,938) (1,671)

Net cash provided by operating activities 60,909 43,026

Cash flows from investing activities

Proceeds from maturities of investments 49,079 27,985

Purchases of investments (44,866) (59,281)

Purchases of property and equipment (2,491) (1,797)

Net cash provided by (used by) investing activities 1,722 (33,093)

Cash flows from financing activities

Debt repayments (5,000) (5,000)

Repurchases of common stock (65,736) (10,000)

Payments for employee taxes related to the net share settlement of equity awards (6,395) (4,469)

Proceeds from exercise of common stock options 876 504

Net cash used by financing activities (76,255) (18,965)

Effect of foreign exchange rate changes on cash and cash equivalents (1,075) 2,687

Net decrease in cash and cash equivalents (14,699) (6,345)

Cash and cash equivalents at beginning of period 135,810 118,552

Cash and cash equivalents at end of period $ 121,111 $ 112,207

Supplemental disclosure of cash flow information:

Cash paid for interest $ 7,338 $ 10,023

Cash paid for income taxes $ 2,542 $ 1,997

Supplemental disclosure of non-cash investing and financing information:

Accrued capital expenditures $ 408 $ 54

Operating lease liabilities arising from obtaining right-of-use assets $ 5,370 $ —

APPIAN CORPORATION

RECONCILIATION OF GAAP MEASURES TO NON-GAAP MEASURES

(unaudited, in thousands, except per share data)

GAAP Measure Stock-Based Compensation Litigation Expense JPI Amortization Lease Impairment and Lease-Related Charges Unrealized Foreign Exchange Rate Gains and Losses Non-GAAP Measure

Three Months Ended June 30, 2026

Subscriptions cost of revenue $ 25,409 $ (497) $ — $ — $ — $ — $ 24,912

Professional services cost of revenue 33,104 (1,520) — — — — 31,584

Total cost of revenue 58,513 (2,017) — — — — 56,496

Sales and marketing expense 70,113 (1,963) — — — — 68,150

Research and development expense 47,305 (3,382) — — — — 43,923

General and administrative expense 32,765 (3,198) (6,293) (1,957) (279) — 21,038

Total operating expense 150,183 (8,543) (6,293) (1,957) (279) — 133,111

Operating (loss) income (5,440) 10,560 6,293 1,957 279 — 13,649

Non-operating expense (income) 827 — — — — (2,523) (1,696)

Income tax impact of above items 1,770 504 — — — 95 2,369

Net (loss) income (11,817) 10,056 6,293 1,957 279 2,428 9,196

Net (loss) income per share, basic $ (0.16) $ 0.14 $ 0.09 $ 0.03 $ — $ 0.03 $ 0.13

Net (loss) income per share, diluted(a)

$ (0.16) $ 0.14 $ 0.09 $ 0.03 $ — $ 0.03 $ 0.13

Three Months Ended June 30, 2025

Subscriptions cost of revenue $ 20,707 $ (418) $ — $ — $ — $ — $ 20,289

Professional services cost of revenue 28,247 (1,400) — — — — 26,847

Total cost of revenue 48,954 (1,818) — — — — 47,136

Sales and marketing expense 62,157 (2,087) — — — — 60,070

Research and development expense 42,655 (3,357) — — — — 39,298

General and administrative expense 27,858 (3,431) (2,482) (3,118) (297) — 18,530

Total operating expense 132,670 (8,875) (2,482) (3,118) (297) — 117,898

Operating (loss) income (10,984) 10,693 2,482 3,118 297 — 5,606

Non-operating (income) expense (17,564) — — — — 16,754 (810)

Income tax impact of above items 1,573 295 — — — (1,059) 809

Net (loss) income (312) 10,398 2,482 3,118 297 (15,695) 288

Net (loss) income per share, basic $ (0.00) $ 0.14 $ 0.03 $ 0.04 $ — $ (0.21) $ 0.00

Net (loss) income per share, diluted(a)

$ (0.00) $ 0.14 $ 0.03 $ 0.04 $ — $ (0.21) $ 0.00

(a) Accounts for the impact of 0.4 million shares of dilutive securities.

GAAP Measure Stock-Based Compensation Litigation Expense JPI Amortization Lease Impairment and Lease-Related Charges Unrealized Foreign Exchange Rate Gains and Losses Non-GAAP Measure

Six months ended June 30, 2026

Subscriptions cost of revenue $ 48,313 $ (1,056) $ — $ — $ — $ — $ 47,257

Professional services cost of revenue 64,611 (3,158) — — — — 61,453

Total cost of revenue 112,924 (4,214) — — — — 108,710

Sales and marketing expense 134,732 (4,366) — — — — 130,366

Research and development expense 93,629 (7,117) — — — — 86,512

General and administrative expense 66,435 (6,752) (13,241) (4,012) (581) — 41,849

Total operating expense 294,796 (18,235) (13,241) (4,012) (581) — 258,727

Operating (loss) income (2,284) 22,449 13,241 4,012 581 — 37,999

Non-operating expense (income) 743 — — — — (3,371) (2,628)

Income tax impact of above items 2,363 1,011 — — — 294 3,668

Net (loss) income (13,342) 21,438 13,241 4,012 581 3,077 29,007

Net (loss) income per share, basic(c)

$ (0.18) $ 0.29 $ 0.18 $ 0.05 $ 0.01 $ 0.04 $ 0.40

Net (loss) income per share, diluted(a)

$ (0.18) $ 0.29 $ 0.18 $ 0.05 $ 0.01 $ 0.04 $ 0.39

Six months ended June 30, 2025

Subscriptions cost of revenue $ 39,228 $ (916) $ — $ — $ — $ — $ 38,312

Professional services cost of revenue 53,766 (2,856) — — — — 50,910

Total cost of revenue 92,994 (3,772) — — — — 89,222

Sales and marketing expense 118,467 (4,333) — — — — 114,134

Research and development expense 84,485 (6,371) — — — — 78,114

General and administrative expense 52,938 (6,256) (4,194) (6,202) (609) — 35,677

Total operating expense 255,890 (16,960) (4,194) (6,202) (609) — 227,925

Operating (loss) income (11,818) 20,732 4,194 6,202 609 — 19,919

Non-operating (income) expense (23,280) — — — — 20,770 (2,510)

Income tax impact of above items 2,314 750 — — — (1,326) 1,738

Net (loss) income (1,489) 19,982 4,194 6,202 609 (19,444) 10,054

Net (loss) income per share, basic $ (0.02) $ 0.27 $ 0.06 $ 0.08 $ 0.01 $ (0.26) $ 0.14

Net (loss) income per share, diluted(b,c)

$ (0.02) $ 0.27 $ 0.06 $ 0.08 $ 0.01 $ (0.26) $ 0.13

(a) Accounts for the impact of 0.5 million shares of dilutive securities.

(b) Accounts for the impact of 0.4 million shares of dilutive securities.

Three months ended June 30, Six months ended June 30,

2026 2025 2026 2025

Reconciliation of adjusted EBITDA:

GAAP net loss $ (11,817) $ (312) $ (13,342) $ (1,489)

Other expense (income), net 827 (17,564) 743 (23,280)

Interest expense 3,780 5,319 7,952 10,637

Income tax expense 1,770 1,573 2,363 2,314

Depreciation expense and amortization of intangible assets 2,507 2,524 4,780 4,970

Stock-based compensation expense 10,560 10,693 22,449 20,732

Litigation Expense 6,293 2,482 13,241 4,194

JPI Amortization 1,957 3,118 4,012 6,202

Lease Impairment and Lease-Related Charges 279 297 581 609

Adjusted EBITDA $ 16,156 $ 8,130 $ 42,779 $ 24,889

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v3.26.1

Cover

Aug. 06, 2026

Cover [Abstract]

Document Type

8-K

Document Period End Date

Aug. 06, 2026

Entity Registrant Name

Appian Corporation

Entity Incorporation, State or Country Code

Entity File Number

001-38098

Entity Tax Identification Number

54-1956084

Entity Address, State or Province

Entity Address, City or Town

McLean

Entity Address, Address Line One

7950 Jones Branch Drive

Entity Address, Postal Zip Code

22102

City Area Code

703

Local Phone Number

442-8844

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Class A Common Stock

Trading Symbol

APPN

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

false

Amendment Flag

false

Entity Central Index Key

0001441683

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration