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Strata Critical Medical, Inc. (SRTA) amends insider filing on 29,730 tax-withheld shares

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4/A

Rhea-AI Filing Summary

Strata Critical Medical, Inc. director and Co-CEO Melissa M. Tomkiel reported that 29,730 shares of Class A common stock were withheld by the company at $5.87 per share to cover tax obligations from a restricted stock unit vesting. This Form 4/A corrects a prior filing that had mistakenly used a sale code instead of the proper tax-withholding code, while confirming all other details were unchanged. After this tax withholding, she directly holds 1,892,774 shares.

Positive

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Insider Tomkiel Melissa M.
Role Co-CEO and General Counsel
Type Security Shares Price Value
Tax Withholding Class A common stock, $0.0001 par value per share 29,730 $5.87 $175K
Holdings After Transaction: Class A common stock, $0.0001 par value per share — 1,892,774 shares (Direct, null)
Footnotes (1)
  1. On June 10, 2026, the reporting person filed a Form 4 (the "Original Form") which inadvertently used the "S" code in Column 3 of Table I in connection with the disposal of certain shares of the Issuer's Class A common stock (the "Shares") on June 8, 2026. The Shares were in fact withheld by the Issuer to satisfy tax withholding obligations in connection a vesting event in a transaction approved in accordance with Rule 16b-3 of the Securities Exchange Act of 1934, as amended. Footnote 1 to the Original Form correctly described the transaction as "shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units." Accordingly, the reporting person is hereby amending the Original Form to correctly show the "F" code in Column 3 of Table I. The information set forth in the Original Form was correct in all other respects. Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
Shares withheld for tax 29,730 shares Withheld on June 8, 2026 for RSU vesting tax obligations
Withholding price $5.87 per share Value used for tax-withholding disposition on June 8, 2026
Shares held after transaction 1,892,774 shares Direct Class A common stock holdings following the tax withholding
Tax-withholding transactions 1 transaction, 29,730 shares Reported in transactionSummary as tax withholding (code F)
restricted stock units financial
"the vesting of restricted stock units"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
Rule 16b-3 regulatory
"a transaction approved in accordance with Rule 16b-3 of the Securities Exchange Act"
Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.
tax withholding obligations financial
"withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting"
Class A common stock financial
"disposal of certain shares of the Issuer's Class A common stock"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
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FAQ

What insider transaction did Strata Critical (SRTA) report for Melissa Tomkiel?

Melissa M. Tomkiel reported 29,730 Class A shares withheld by Strata Critical Medical to cover tax obligations from a restricted stock unit vesting. This was a non-market tax-withholding disposition, not an open-market trade, and it left her with 1,892,774 directly held shares.

Why did Strata Critical (SRTA) file an amended Form 4/A for Melissa Tomkiel?

The amendment corrects a coding error in a prior Form 4 that had used an "S" sale code. The shares were actually withheld by the issuer for tax obligations, so the filing now properly shows an "F" tax-withholding code while keeping all other information unchanged.

How many Strata Critical (SRTA) shares were withheld for Melissa Tomkiel’s taxes?

A total of 29,730 shares of Strata Critical Medical's Class A common stock were withheld. These shares covered tax withholding obligations triggered by the vesting of restricted stock units, as approved under Rule 16b-3 of the Securities Exchange Act of 1934.

What is Melissa Tomkiel’s Strata Critical (SRTA) shareholding after this tax withholding?

Following the tax-withholding transaction, Melissa M. Tomkiel directly holds 1,892,774 shares of Strata Critical Medical Class A common stock. This figure reflects her position after 29,730 shares were retained by the issuer to satisfy restricted stock unit vesting tax obligations.

Was the Strata Critical (SRTA) insider transaction an open-market sale?

No, the transaction was not an open-market sale. The 29,730 shares were withheld by Strata Critical Medical to satisfy tax obligations from a restricted stock unit vesting event, and the corrected Form 4/A uses the "F" tax-withholding disposition code instead of an "S" sale code.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Tomkiel Melissa M.

(Last)(First)(Middle)
C/O STRATA CRITICAL MEDICAL, INC.
666 THIRD AVENUE, 25TH FLOOR

(Street)
NEW YORK NEW YORK 10017

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Strata Critical Medical, Inc. [ SRTA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Co-CEO and General Counsel
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)
06/10/2026
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A common stock, $0.0001 par value per share06/08/2026F(1)29,730(2)D$5.871,892,774D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. On June 10, 2026, the reporting person filed a Form 4 (the "Original Form") which inadvertently used the "S" code in Column 3 of Table I in connection with the disposal of certain shares of the Issuer's Class A common stock (the "Shares") on June 8, 2026. The Shares were in fact withheld by the Issuer to satisfy tax withholding obligations in connection a vesting event in a transaction approved in accordance with Rule 16b-3 of the Securities Exchange Act of 1934, as amended. Footnote 1 to the Original Form correctly described the transaction as "shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units." Accordingly, the reporting person is hereby amending the Original Form to correctly show the "F" code in Column 3 of Table I. The information set forth in the Original Form was correct in all other respects.
2. Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.
Remarks:
/s/ Melissa M. Tomkiel06/18/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)