Form 8-K
8-K — Pasithea Therapeutics Corp.
Accession: 0001213900-26-100515
Filed: 2026-09-16
Period: 2026-09-16
CIK: 0001841330
SIC: 2834 (PHARMACEUTICAL PREPARATIONS)
Item: Other Events
Documents
8-K — ea0305372-8k_pasithea.htm (Primary)
XML — IDEA: XBRL DOCUMENT (R1.htm)
8-K — CURRENT REPORT
8-K (Primary)
Filename: ea0305372-8k_pasithea.htm · Sequence: 1
false
0001841330
0001841330
2026-09-16
2026-09-16
0001841330
KTTA:CommonStockParValue0.0001PerShareMember
2026-09-16
2026-09-16
0001841330
KTTA:WarrantsToPurchaseSharesOfCommonStockParValue0.0001PerShareMember
2026-09-16
2026-09-16
iso4217:USD
xbrli:shares
iso4217:USD
xbrli:shares
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 16, 2026
Pasithea Therapeutics Corp.
(Exact name of registrant as specified in its charter)
Delaware
001-40804
85-1591963
(State or other jurisdiction
of incorporation)
(Commission File Number)
(IRS Employer
Identification No.)
1111 Lincoln Road, Suite 500
Miami Beach, Florida
33139
(Address of principal executive offices)
(Zip Code)
(702) 514-4174
(Registrant’s telephone number, including
area code)
N/A
(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
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(s)
Name of each exchange on which registered
Common Stock, par value $0.0001 per share
KTTA
The Nasdaq Capital Market
Warrants to purchase shares of Common Stock, par value $0.0001 per share
KTTAW
The Nasdaq Capital Market
Indicate by check mark whether the registrant
is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities
Exchange Act of 1934 (17 CFR §240.12b-2).
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 8.01 Other Events.
The warrants of Pasithea Therapeutics Corp.
(the “Company”) to purchase shares of the Company's common stock, which trade on The Nasdaq Capital Market
(“Nasdaq”) under the symbol “KTTAW” (the “Warrants”), will expire on September 17, 2026 in
accordance with their terms as provided in the Warrant Agency Agreement between the Company and VStock Transfer, LLC, as warrant
agent. Any Warrants not exercised prior to expiration will cease to be exercisable and will be of no further value.
In connection with the expiration, the Warrants
will cease trading on Nasdaq, and a Notification of Removal from Listing and Registration under Section 12(b) of the Securities Exchange
Act of 1934, as amended (the “Exchange Act”), on Form 25 will be filed with the Securities and Exchange Commission to delist
the Warrants and deregister them under Section 12(b) of the Exchange Act.
The Company's common stock, par value $0.0001
per share, will continue to trade on Nasdaq under the symbol “KTTA.”
1
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.
PASITHEA THERAPEUTICS CORP.
Dated: September 16, 2026
By:
/s/ Tiago Reis Marques
Name:
Tiago Reis Marques
Title:
Chief Executive Officer
2
XML — IDEA: XBRL DOCUMENT
XML
Filename: R1.htm · Sequence: 7
v3.26.3
Cover
Sep. 16, 2026
Document Type
8-K
Amendment Flag
false
Document Period End Date
Sep. 16, 2026
Entity File Number
001-40804
Entity Registrant Name
Pasithea Therapeutics Corp.
Entity Central Index Key
0001841330
Entity Tax Identification Number
85-1591963
Entity Incorporation, State or Country Code
DE
Entity Address, Address Line One
1111 Lincoln Road
Entity Address, Address Line Two
Suite 500
Entity Address, City or Town
Miami Beach
Entity Address, State or Province
FL
Entity Address, Postal Zip Code
33139
City Area Code
702
Local Phone Number
514-4174
Written Communications
false
Soliciting Material
false
Pre-commencement Tender Offer
false
Pre-commencement Issuer Tender Offer
false
Entity Emerging Growth Company
true
Elected Not To Use the Extended Transition Period
false
Common Stock, par value $0.0001 per share
Title of 12(b) Security
Common Stock, par value $0.0001 per share
Trading Symbol
KTTA
Security Exchange Name
NASDAQ
Warrants to purchase shares of Common Stock, par value $0.0001 per share
Title of 12(b) Security
Warrants to purchase shares of Common Stock, par value $0.0001 per share
Trading Symbol
KTTAW
Security Exchange Name
NASDAQ
X
- 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:
na
Period Type:
duration
X
- Definition
Area code of city
+ References
No definition available.
+ Details
Name:
dei_CityAreaCode
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- Definition
Address Line 2 such as Street or Suite number
+ References
No definition available.
+ Details
Name:
dei_EntityAddressAddressLine2
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- Definition
Name of the City or Town
+ References
No definition available.
+ Details
Name:
dei_EntityAddressCityOrTown
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- Definition
Name of the state or province.
+ References
No definition available.
+ Details
Name:
dei_EntityAddressStateOrProvince
Namespace Prefix:
dei_
Data Type:
dei:stateOrProvinceItemType
Balance Type:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- Definition
Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Securities Act
-Number 7A
-Section B
-Subsection 2
+ Details
Name:
dei_EntityExTransitionPeriod
Namespace Prefix:
dei_
Data Type:
xbrli:booleanItemType
Balance Type:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- Definition
Local phone number for entity.
+ References
No definition available.
+ Details
Name:
dei_LocalPhoneNumber
Namespace Prefix:
dei_
Data Type:
xbrli:normalizedStringItemType
Balance Type:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- 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:
na
Period Type:
duration
X
- Details
Name:
us-gaap_StatementClassOfStockAxis=KTTA_CommonStockParValue0.0001PerShareMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type:
X
- Details
Name:
us-gaap_StatementClassOfStockAxis=KTTA_WarrantsToPurchaseSharesOfCommonStockParValue0.0001PerShareMember
Namespace Prefix:
Data Type:
na
Balance Type:
Period Type: