SRTA · Strata Critical Medical, Inc.

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.

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.

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.

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.

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.81 to $6.02, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025.

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $5.79 to $5.81, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

The warrants expired worthless on May 7, 2026, according to the terms of the Warrant Agreement dated September 12, 2019.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 20, 2025.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 20, 2025.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 20, 2025.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 20, 2025.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting. All of the RSUs will vest on June 8, 2026, subject to the Reporting Person's continued service to the Issuer. The RSUs represent an award under the Reporting Person's Quarterly commission program. As the RSUs reflect awards that would otherwise be payable to the Reporting Person in immediately payable cash under such quarterly commission program, all of the RSUs will vest on June 8, 2026, subject to the Reporting Person's continued service to the Issuer.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting: 6.25% of the RSUs (rounded down to the nearest whole number) will vest every 3 months after March 8, 2026, with any remaining unvested RSUs to vest on March 8, 2030, subject to the Reporting Person's continued service to the Issuer.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting: 6.25% of the RSUs (rounded down to the nearest whole number) will vest every 3 months after March 8, 2026, with any remaining unvested RSUs to vest on March 8, 2030, subject to the Reporting Person's continued service to the Issuer.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.

The reporting person realized short-swing profits under Section 16(b) of the Exchange Act as a result of transactions reported on this Form 4. On December 10, 2025, the reporting person disgorged to the Issuer the Section 16(b) short-swing profits realized by the reporting person from such transactions.

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.45 to $4.48, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote to this Form 4.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting: 25% of the RSUs (rounded down to the nearest whole number) to become vested on September 8, 2026 and then 6.25% (rounded down to the nearest whole number) will vest every 3 months thereafter, with any remaining unvested RSUs to vest on September 8, 2029, subject to the Reporting Person's continued service to the Issuer.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting. 100% of the RSUs will become vested on the date of the Issuer's 2027 Annual Meeting of Stockholders.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting. All of the RSUs will vest on March 8, 2026, subject to the Reporting Person's continued service to the Issuer. The RSUs represent an award under the Reporting Person's Quarterly commission program. As the RSUs reflect awards that would otherwise be payable to the Reporting Person in immediately payable cash under such quarterly commission program, all of the RSUs will vest on March 8, 2026, subject to the Reporting Person's continued service to the Issuer.

Represents a grant of Restricted Stock Units ("RSUs"), which will be settled in shares of the Issuer's common stock upon vesting. 100% of the RSUs will become vested on the date of the Issuer's 2026 Annual Meeting of Stockholders.

These transactions were executed in multiple trades at prices ranging from $4.31 to $4.32, inclusive. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC, the Issuer, or a security holder of the Issuer full information regarding the number of shares sold at each separate price within the range.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of PSUs.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 8, 2024.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 8, 2024.

Represents shares that were acquired upon the certification of the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance-based restricted stock units ("PSUs") granted to the Reporting Person on March 8, 2024.

Represents shares withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units.