Form 8-K

8-K — NN INC

Accession: 0000918541-26-000093

Filed: 2026-09-22

Period: 2026-09-22

CIK: 0000918541

SIC: 3540 (METALWORKING MACHINERY & EQUIPMENT)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — nnbr-20260922.htm (Primary)

EX-99.1 — EX-99.1 PRESS RELEASE (nnincraisesfull-year2026.htm)

EX-99.2 — EX-99.2 INVESTOR PRESENTATION (nnincinvestorpresentatio.htm)

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8-K

8-K (Primary)

Filename: nnbr-20260922.htm · Sequence: 1

nnbr-20260922

September 22, 20260000918541falseCharlotteNorth Carolina6210 Ardrey Kell RoadSuite 12000009185412026-09-222026-09-22

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): September 22, 2026

NN, Inc.

(Exact name of registrant as specified in its charter)

Delaware 001-39268 62-1096725

(State or other jurisdiction of

incorporation) (Commission File Number) (I.R.S. Employer

Identification No.)

6210 Ardrey Kell Road, Suite 120

Charlotte, North Carolina

28277

(Address of principal executive offices) (Zip Code)

(980) 264-4300

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box 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 Instruction 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 Act:

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

Common Stock, par value $0.01 NNBR 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. ☐

ITEM 7.01 REGULATION FD DISCLOSURE

On September 22, 2026, NN, Inc., a Delaware corporation (the “Company”), issued a press release and posted an updated copy of an investor presentation to its website at https://investors.nninc.com. The presentation will be used at the D.A. Davidson Diversified Industrial & Services Investor Conference on September 24, 2026. A copy of this press release and presentation are included as Exhibits 99.1 and 99.2 to this Current Report.

Pursuant to the rules and regulations of the U.S. Securities and Exchange Commission, the information furnished pursuant to this Item 7.01 of this Current Report (including Exhibits 99.1 and 99.2) is deemed to have been furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference into any other filing of the Company under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

The Company routinely uses its investor relations website (https://investors.nninc.com) to post presentations to investors and other important information, including information that may be material. Accordingly, the Company encourages investors and others interested in the Company to review the information it makes public on its investor relations website.

ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits.

Exhibit

No. Description of Exhibit

99.1

Press Release issued by NN, Inc., dated September 22, 2026

99.2

NN, Inc. D.A. Davidson Presentation

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 hereunto duly authorized.

Date: September 22, 2026

NN, INC.

By: /s/ Christopher H. Bohnert

Name: Christopher H. Bohnert

Title: Senior Vice President and Chief Financial Officer

EX-99.1 — EX-99.1 PRESS RELEASE

EX-99.1

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nnincraisesfull-year2026

NN, Inc. Raises Full-Year 2026 Guidance Ranges for Net Sales and Adjusted EBITDA FOR IMMEDIATE RELEASE CHARLOTTE, N.C., September 22, 2026 – NN, Inc. (NASDAQ: NNBR) a global leader in precision manufacturing, today announced that it is raising its full-year 2026 guidance ranges for Net Sales and Adjusted EBITDA. Updated Full-Year 2026 Guidance Metric Prior Guidance Updated Guidance Net Sales $460 million – $480 million $470 million – $490 million Adjusted EBITDA $55 million – $65 million $58 million – $68 million Management’s updated guidance for 2026 Net Sales at midpoint is $480 million, up $58 million, or 14% versus full-year 2025 Net Sales. Management’s updated guidance for 2026 Adjusted EBITDA at midpoint is $63 million, up $14 million, or 29% versus full-year 2025 Adjusted EBITDA. Chief Executive Officer Harold Bevis commented, "Our business continues to build momentum as we ramp up in our key growth markets of Data Center, Defense & Electronics, and Medical, where demand for our solutions remains strong and actively expanding. Our year-to-date results and year-to-go forecast underpin this improved guidance and reflect the steady performance our growth and cost programs. NN is continuing to invest forward in its 5 Pillar growth end markets and this is translating to increased success and higher results. Raising our full-year 2026 guidance for net sales and adjusted EBITDA reflects our confidence in the performance of the business. We remain focused on our balanced plans for delivering profitable growth and improved cost productivity for our customers and shareholders." NN, Inc. will provide additional detail and updated guidance when it reports third quarter 2026 results on October 28, 2026. About NN, Inc. NN, Inc. (NASDAQ: NNBR) is an entrepreneurial manufacturing company specializing in manufacturing micron- toleranced precision metal componentry for high-growth end markets, especially Data Center, Electric Grid, Medical, Defense, and High-Value Vehicle systems. Founded in 1980, NN serves over 700 customers on 4 continents through its 2,550 person workforce operating out of 27 global plants. This footprint enables rapid innovation and global scaled solutions. For more information, visit nninc.com. Forward Looking Statements This press release may contain forward-looking statements regarding our business, operations, and financial performance. Such statements are based on current expectations and assumptions that are subject to a number of risks and uncertainties. Actual results could differ materially. Please refer to our most recently filed Form 10-K and our Form 10-Q for the period following that Form 10-K, including the risk factors described therein. We undertake no obligation to update any forward-looking statement, except as required by law. Given these risks and uncertainties, investors are cautioned not to place undue reliance on such forward-looking statements.

This press release contains certain financial measures not presented in accordance with U.S. generally accepted accounting principles (“GAAP”) such as adjusted EBITDA (the “non-GAAP financial measures”). These non-GAAP financial measures are not calculated in accordance with GAAP and should not be considered in isolation from, or as a substitute for, the most directly comparable GAAP measures, and may not be comparable to similarly titled measures used by other companies. Management uses these non-GAAP financial measures, together with the comparable GAAP measures, to evaluate the Company’s operating performance and underlying business trends across periods on a consistent basis, and to assist in operational and financial decision-making, including with respect to internal budgeting and resource allocation. Reconciliations of each non-GAAP financial measure to its most directly comparable GAAP measure are set forth in the tables accompanying this presentation. A reconciliation of forward- looking non-GAAP financial measures to the most directly comparable GAAP measures is not provided because the Company cannot reasonably predict certain items necessary for such reconciliation without unreasonable efforts. Investor Relations: Joe Caminiti NNBR@alpha-ir.com 312-445-2870 Reconciliation of GAAP Net Loss to Non-GAAP Adjusted EBITDA $ (34,004) $ 49,017 35,923 (3,331) 22,367 3,153 3,007 977 9,825 8,739 3,200 (839) (1) Personnel costs include recruitment, retention, relocation, and severance costs (2) Facility costs include costs of opening / closing facilities and relocation / exit of manufacturing operations 2025 Year Ended December 31, Non-GAAP adjusted EBITDA Non-cash foreign exchange (gain) on inter-company loans Non-cash stock compensation Personnel costs (1) Facility costs (2) Depreciation and amortization Professional fees Write-off of unamortized debt issuance cost Change in fair value of preferred stock derivatives and warrants Provision for income taxes Interest expense GAAP net loss (in thousands)

EX-99.2 — EX-99.2 INVESTOR PRESENTATION

EX-99.2

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D.A. Davidson Diversified Industrials & Services Investor Conference September 22, 2026

2 Forward Looking Statements This presentation may contain forward-looking statements regarding our business, operations, and financial performance. Such statements are based on current expectations and assumptions that are subject to a number of risks and uncertainties. Actual results could differ materially. Please refer to our most recently filed Form 10-K and our Form 10-Qs for the periods following that Form 10-K, including the risk factors described therein. We undertake no obligation to update any forward-looking statement, except as required by law. Given these risks and uncertainties, investors are cautioned not to place undue reliance on such forward-looking statements. We present both GAAP and non-GAAP financial measures in this presentation. A reconciliation of non-GAAP to GAAP measures is included in this presentation and in the most recent earnings press release, which is distributed and available to the public through our Investor Relations website located at investors.nninc.com/news-events/presentations.

3 Investment Thesis 1 2 3 NN is delivering a profitable growth program in desirable end markets NN is increasing its margins with a balanced program of growth & cost-out NN has positive results trend, a positive multi-year outlook, and a strong team

4 NN Leaders in Attendance Chris Bohnert Chief Financial Officer Tim French Chief Operating Officer

5 Profitable Growth Program is Delivering, Raising Guidance ▪ Growth Program is Working Company is benefiting from multi-year program to generate profitable growth in Data Center, Defense, Medical, Electric Grid, High-Value Vehicle Parts ▪ Margin Increase Program is Working Multi-year cost-out program, accretive mix from new growth, weaning legacy business ▪ Competitive Moat is: Extraordinary Precision Deliver micron-toleranced parts with exceptional quality at high-volume scale - high use of automation, AI and robotics Sales $480 Million Adjusted EBITDA $63 Million ~13% Margin 5 Key Markets Data Center, Electric Grid, Defense & Electronics, Medical, High-Value Vehicle New Business Wins $100 Million NN 2026 Midpoint Guidance, as of Sept 22, 2026 9001:2015 13485:2016 I N P R O G R E S S C E R T I F I E D

6 ▪ Majority of sales and profits are in the US and China, ideal footprint for Data Center industry ▪ Top 30 customers are ~70% of sales, ~700 total customers ▪ Small, satellite operations in Europe and Brazil for global customers desiring global supply chains Global Manufacturing Footprint Fits the Markets We are Pursuing UNITED STATES ~60% Sales Data Center, Electric Grid, Defense, Commercial Vehicle, Medical, Auto 16 Facilities Europe ~11% Sales Auto, Industrial 3 Facilities South America ~10% Sales Auto, Industrial 4 Facilities ~19% Sales Data Center, Commercial Vehicle, Medical, Auto 4 Facilities CHINA

7 5 Pillar Growth Program High-Value Vehicle • Intentional product portfolio of demanding applications that require exceptionally precise parts, drives NN technology curve Electric Grid • Precision stamped, plated and assembled products, especially smart meter components, circuit breaker components 2 Medical Equipment • Growing markets, very precise products, special equipment & team, recent marquee customer awards & launches 3 Defense and Electronics • Many robust weapon and electronics applications, many products, growing business, recent Tier 1 awards & launches 4 5 1 Data Center • Fast-growing market and business, demanding applications for many NN products, recent liquid cooling new products

8 Intentional Transformation of Sales Mix is Underway → Pursuing, Winning and Adding Additional Desirable Business Auto 65% Non-Auto 35% 2023 Auto 40%Non-Auto 60% Q2 2026% OF SALES Data Center & Electric Grid Medical Products Defense & Electronics TTM sales = $80M NTM Target = $120M TTM sales = $15M NTM Target = $40M TTM sales = $60M NTM Target = $90M Top 3 Growth Markets TTM sales = Trailing Twelve Months actuals, NTM = Next Twelve Months run-rate

9 Data Center and Electric Grid – September 22, 2026 Update Data Center and Electric Grid products are growing • ~$80 Million TTM Q2 Sales at accretive margins – NTM goal of $120 Million, multiple large opportunities being evaluated • NN’s 2nd largest market – Multiple product lines serving Data Center and Grid, including components for: electrical connectors in data center racks, circuit breakers, smart meters, liquid cooling connectors, PCB test probes, power switches, cooling plate surface treatment 2026 News - Entered Data Center market for liquid cooling system • Large and growing market; NN focused upon establishing supply chain positions across multiple platforms and customers • Leveraging NN’s fluid management know-how and existing manufacturing footprint, substantial ramp ups underway during 2nd Half • Primary AI data center rack manufacturing arena is in our backyard in China, Taiwan, Vietnam where NN is a long-term known supplier 2026 News – significant new awards and rampups during 2nd Half 2026 and 2027 • ~$47 Million of new awards 2026 YTD, pipeline exceeds $100 Million • Procuring and installing significant dedicated new capacity, ~60 new CNC machine centers in NN’s Wuxi plant for Southeast Asia AI Data Center supply chains • Evaluating next steps for large-scale capacity increases including additional footprint in China and Mexico

10 AI Data Center Racks - Liquid Cooling Product Line Introduced in 2026 WHERE NN PLAYS 1 Precision Components NN Inc Mission-critical machined parts, engineered to spec 2 Connectors & Couplings Parts built into complete connector and coupling assemblies 3 Cooling Systems Cold plates, manifolds and CDUs form the thermal loop 4 Rack Integration Cabinets assembled and tested as complete systems 5 Data Center Racks installed and commissioned at scale 4 Plants Now Producing Data Center Parts

11 Data Center Growth - September 22, 2026 Update NN’s Available Market Continues to Expand ▪ Growth rate estimates are increasing ▪ Next-gen AI chips driving cooling connector count increasing, further expanding global market for these products ▪ Merchant market for liquid cooling is growing rapidly, as is captive market NN is Scaling and Ramping Up Production ▪ Secured business with new customers requiring many new products and ~60 new machine centers ▪ Two dedicated production centers just for new product innovation are now in use – high level of rapid innovation with new chip designs and next gen products. Prototyping new products for three new AI chip designs, new 90-degree angle components that require milling & chucking ▪ Evaluating additional China plant location as 2027 and 2028 forward growth is driving need for more production floor space and machines NN Content per Data Center Increasing ▪ NN has multiple products in data centers - electric power switches, PCB test probes, and circuit breaker - all growing ▪ Increasing production output for these products and driving sales growth Fast-Growing End-Market for NN 2026 News - Liquid Cooling Components Data Center Content is Increasing

12 Defense and Electronics Growth - September 22, 2026 Update 2026 News - Entry as a Tier 1 manufacturer; ramping up during 2nd Half 2026 • Multi-year agreement to produce firearm accessories for a market leading brand owner • Expected to add $12–$15 Million in sales, with additional opportunities being evaluated • Many NN capability firsts in this area – titanium machining, laser welding, advanced surface coatings, unique factory certifications Expanding the Defense and Electronics growth platform • 20+ new program wins over three years – valued at ~$30–$35 Million per year - and an additional ~$75 Million working pipeline • NN’s existing customer base in Defense is growing strongly, and we are adding new customers Developing strong, fast-growing business in Defense & Electronics • ~$60 Million TTM Q2 Net Sales at accretive margins – near-term goal of $90 Million • NN supplies many critical components – including weapon components, guidance system components, and anti-drone munitions

13 Medical Products Growth - September 22, 2026 Update 2026 News - new wins in robotic-assisted surgery equipment, ramping during 2nd Half 2026 • Qualified and received initial purchase orders for a leading robotic-assisted surgery platform • Cleared a critical full-facility audit at the Kentwood, MI plant, backed by an NN multi-year investment and new quality systems • This new large customer can effectively double the business alone – from $15 Million to $25–$30 Million Expanding the Medical Products growth platform • Medical new-business pipeline is now ~$77 Million overall • Awards across Ultrasound, Interventional Cardiology, Sports Medicine & Extremity, and Robotic-Assisted Surgery • Business is gaining momentum and NN has a strong team in place • $15 Million TTM Q2 Net Sales, profit rate continues to improve – near-term goal of $40 Million • High-precision manufacturer to medical equipment OEMs and medical instrument OEMs – precision metal parts Medical Products business is small, but gaining momentum

14 Financial Highlights - Q2 2026 and 1st Half 2026 +19% +16%+36% +35% $65M Q2 Y/Y Net Sales Growth 1st Half 2026 Y/Y Net Sales Growth Q2 Y/Y Adj. EBITDA Growth 1st Half 2026 Y/Y Adj. EBITDA Growth 1st Half 2026 New Business Awards All Divisions All Divisions All Divisions All Divisions All Divisions Paid Off Substantial Amount of Preferred Stock So Far in 2026

15 Financial Highlights - Q2 2026 and 1st Half 2026 $17.9 $32.1 Adjusted EBITDA ($millions, except percentages) $128.7 $247.2 Net Sales ($millions, except percentages) ($millions, except percentages) Q2’25 Q2’26 vs. Prior Year 1st Half 2025 1st Half 2026 vs. Prior Year Net Sales $107.9 $128.7 + $20.8 $213.6 $247.2 + 16% Adj. Gross Margin $21.1 $26.1 + $5.0 $38.9 $49.2 + 26% Adj. Gross Margin % 19.5% 20.3% + 80 basis pts 18.2% 19.9% Hit 5 Year Goal Adj. EBITDA $13.2 $17.9 + $4.7 $23.8 $32.1 + 35% Adj. EBITDA Margin % 12.2% 13.9% + 170 basis pts 11.1% 13.0% Hit 5 Year Goal +19% +16% 14% 13%Y/Y Growth Adj. EBITDA Margin % Q2’26 Q2’26 1st Half ’26 1st Half ’26

16 2026 Performance Has Trended Up, Raising Guidance ($millions) 2026 Guidance Range 2026 Guidance Midpoint 2026 Midpoint vs. 2025 Actual Net Sales $470 - $490 $480 + 14% Adjusted EBITDA $58 - $68 $63 + 29% New Business Wins $90 - $110 $100 + 43% Key Notes 1) Assumes current base metal costs – steel, gold, silver, copper, brass 2) Assumes current FX rate environment 2026 Guidance as of Sept 22, 2026 NEW NEW

17 New Win Program is a Key Component of Value Creation • Win $80 – $100M of new business annually, and shed / changeout old business • Management estimates ~20% of vintage year new wins occur in current year, ~70% of vintage year new wins occur in following year, and ~10% of vintage year new wins occur in 3rd year • Company’s objective is to replace declining <20% gross margin business with growing >25% gross margin business • Replace old “auto” business with new “5 Pillar” business • Requires growth investment – capex per dollar of peak annual sales (PAS) averages $0.30 for growth and incremental working capital averages 18% of sales ➢ $100M of new business requires ~$30M of growth capex & $18M of working capital. ➢ The old business that is shed/EOP nets the working capital investment down by the same ratio • New business pipeline is >$750M in size, and NN averages a 25+% win-rate on closed opportunities Auto Data Center, Electric Grid, Defense, Medical, High-Value Vehicle From To

18 Growth Investment Has Trended Up in 2026 2026 newly won business and forward ramp-up requirements are higher than expected • Competing and winning NPI battles at a higher and faster rate than expected • Additional sales growth pipeline opportunities are >$750M • Won programs are averaging 25%+ gross margins and continuing to pull up financial profile Capital investment outlook is at a higher level due to new growth program victories • 2026 capex funding will be accomplished through both cash spending and leasing • Similar goals for 2027 and 2028 in order to accomplish strategic objectives • $94 Million of new wins through September 19, 2026; with 2027 and 2028 goals to be similar • Growth capex averaging $0.30 / annual sales-rate dollar; most programs run many years • Working capital investment rates averaging 18% of sales Company growth rate has increased, growth investment requirements have increased

Positive Multi-Year Outlook 19 Key Multi-Year Assumptions: • Sales growth – continue growing at 9% CAGR or $50M annual net sales growth driven by $80 – $100M of annual New Business wins minus forced exits, program wind-downs and EOPs every year, and underlying market demand growth • Margin growth – continue multi-year adjusted EBITDA growth trend with 11% CAGR or $7M annual adjusted EBITDA growth from higher sales, improved sales mix, annual cost-out program that offsets all inflation and price pressure, leverage SGA • Basis cost stability - metals, FX rates – these pass-through costs impact sales figures and percentage calculations $456M Q2'26 TTM 2029 2030 Sales & Adj. Gross Margin 19.4% 22% $57M $87M Q2'26 TTM 2029 Adj. EBITDA & Margin 12.6% 14% $625M 9% CAGR 11% CAGR Midpoint Mid-PointMidp i 026 Q2 TTM 2026 Q2 TTM

20 Appendix

21 This presentation contains certain financial measures not presented in accordance with U.S. generally accepted accounting principles ("GAAP"), including adjusted gross margin, adjusted gross margin %, adjusted income from operations, adjusted EBITDA, adjusted EBITDA margin % (collectively, the "non-GAAP financial measures"). These non-GAAP financial measures are not calculated in accordance with GAAP and should not be considered in isolation from, or as a substitute for, the most directly comparable GAAP measures, and may not be comparable to similarly titled measures used by other companies. Management uses these non-GAAP financial measures, together with the comparable GAAP measures, to evaluate the Company's operating performance and underlying business trends across periods on a consistent basis, and to assist in operational and financial decision-making, including with respect to internal budgeting and resource allocation. Reconciliations of each non-GAAP financial measure to its most directly comparable GAAP measure are set forth in the tables accompanying this presentation. A reconciliation of forward-looking non-GAAP financial measures to the most directly comparable GAAP measures is not provided because the Company cannot reasonably predict certain items necessary for such reconciliation without unreasonable efforts. Non-GAAP Financial Measures Footnotes

22 Note: Totals may not foot due to rounding

23 Note: Totals may not foot due to rounding

24 Reconciliation of GAAP Gross Margin to Non-GAAP Gross Margin and Gross Margin % NN, Inc. Consolidated (in millions) FY 2025 Net sales 422.2$ Cost of sales (exclusive of depreciation and amortization) 362.8 GAAP gross margin 59.4 Personnel costs (1) 9.3 Facility costs (2) 6.3 Other 3.1 Adjusted gross margin 78.1$ Adjusted gross margin % (3) 18.5% Note: Totals may not foot due to rounding NN, Inc. Consolidated (in millions) FY 2025 GAAP income (loss) from operations (18.9)$ Professional fees 1.0 Personnel costs (1) 8.7 Facility costs (2) 9.8 Amortization of intangibles 13.6 Non-GAAP adjusted income from operations 14.2$ Non-GAAP adjusted operating margin % (4) 3.4% Depreciation 22.3 Other expenses (income), net 4.6 Non-cash foreign exchange (gain) loss on inter-company loans (0.8) Change in fair value of preferred stock derivatives and warrants (3.3) Share of net income from joint venture 8.9 Non-cash stock compensation 3.2 Non-GAAP adjusted EBITDA 49.0$ Non-GAAP adjusted EBITDA margin % (5) 11.6% GAAP net sales 422.2$ (1) Personnel costs include recruitment, retention, relocation, severance costs (2) Facility costs include costs of opening / closing facilities, relocation / exit of manufacturing operations (3) Non-GAAP adjusted gross margin % = Non-GAAP adjusted gross margin / GAAP net sales (4) Non-GAAP adjusted operating margin % = Non-GAAP adjusted income (loss) from operations / GAAP net sales (5) Non-GAAP adjusted EBITDA margin % = Non-GAAP adjusted EBITDA / GAAP net sales Reconciliation of GAAP Income (Loss) from Operations to Non-GAAP Adjusted Income from Operations and Non-GAAP Adjusted EBITDA and Adjusted EBITDA Margin %

25 Note: Totals may not foot due to rounding Reconciliation of GAAP Gross Margin to Non-GAAP Adjusted Gross Margin and Gross Margin % — Trailing Twelve Months Ended June 30, 2026 NN Consolidated (in millions) Q3 2025 (3 mo. ended 9/30/25) Q4 2025 (3 mo. ended 12/31/25) Q1 2026 (3 mo. ended 3/31/26) Q2 2026 (3 mo. ended 6/30/26) TTM (12 mo. ended 6/30/26) Net sales 103.9 104.7 118.5 128.7 455.8 Cost of sales (exclusive of depreciation and amortization) 86.4 95.1 99.0 106.9 387.4 GAAP gross margin 17.5$ 9.6$ 19.4$ 21.9$ 68.4$ Personnel costs (1) 1.3 3.0 1.1 1.6 7.0 Facility costs (2) - 6.3 1.8 1.8 10.0 Other 0.8 0.8 0.8 0.8 3.1 Adjusted gross margin 19.5$ 19.7$ 23.1$ 26.1$ 88.4$ Adjusted gross margin % (3) 18.8% 18.8% 19.5% 20.3% 19.4% (1) Personnel costs include recruitment, retention, relocation, severance and (from Q1 2026) start-up costs related to new programs, as described in each release. (2) Facility costs include costs of opening / closing facilities, relocation / exit of manufacturing operations and (from Q1 2026) start-up costs related to new programs. (3) Non-GAAP adjusted gross margin % = Non-GAAP adjusted gross margin / GAAP net sales.

26 Note: Totals may not foot due to rounding Reconciliation of GAAP Net Loss to Non-GAAP Adjusted EBITDA and Adjusted EBITDA Margin % — Trailing Twelve Months Ended June 30, 2026 NN, Inc. Consolidated (in millions) Q3 2025 (3 mo. ended 9/30/25) Q4 2025 (3 mo. ended 12/31/25) Q1 2026 (3 mo. ended 3/31/26) Q2 2026 (3 mo. ended 6/30/26) TTM (12 mo. ended 6/30/26) GAAP net loss (6.7) (12.5) (6.8) (2.3) (28.3) Provision for income taxes 0.8 0.3 0.7 0.2 2.0 Interest expense 5.7 5.9 5.8 5.7 23.0 Change in fair value of preferred stock derivatives and warrants (0.1) (1.2) 0.2 0.0 (1.0) Depreciation and amortization 9.1 9.2 9.2 9.3 36.8 Professional fees 0.2 0.4 0.7 0.7 1.9 Personnel costs (1) 2.1 0.7 1.4 1.6 5.7 Facility costs (2) 0.7 9.2 2.3 1.8 14.0 Non-cash stock compensation 0.7 0.8 0.8 0.8 3.2 Non-cash foreign exchange (gain) loss on inter-company loans (0.1) 0.3 (0.7) 0.3 (0.2) Other — — 0.5 (0.3) 0.3 Non-GAAP adjusted EBITDA 12.4$ 12.9$ 14.1$ 17.9$ 57.3$ GAAP net sales 103.9 104.7 118.5 128.7 455.8 Non-GAAP adjusted EBITDA margin (3) 11.9% 12.3% 11.9% 13.9% 12.6% (1) Personnel costs include recruitment, retention, relocation, severance and (beginning Q1 2026) start-up costs related to new programs. (2) Facility costs include costs of opening / closing facilities, relocation / exit of manufacturing operations and (beginning Q1 2026) start-up costs related to new programs. (3) Non-GAAP adjusted EBITDA margin = Non-GAAP adjusted EBITDA / GAAP net sales.

Thank You 27

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Sep. 22, 2026

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