SCHEDULE 13D | Strata Critical Medical, Inc.

SCHEDULE 13D

CUSIP Number(s):

092667104

Name of reporting person

Krstic Velibor

Check the appropriate box if a member of a Group (See Instructions)

(a)

(b)

SEC use only

Source of funds (See Instructions)

PF, PF

Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)

Checkbox not checked

Citizenship or place of organization

SWITZERLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

7	Sole Voting Power 0.00
8	Shared Voting Power 0.00
9	Sole Dispositive Power 0.00
10	Shared Dispositive Power 0.00

Aggregate amount beneficially owned by each reporting person

0.00

Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in Row (11)

0.0 %

Type of Reporting Person (See Instructions)

IN, IN

SCHEDULE 13D

Item 1.

Security and Issuer

(a)

Title of Class of Securities:

Warrants to purchase Class A Common Stock, par value $0.0001 per share

(b)

Name of Issuer:

Strata Critical Medical, Inc.

(c)

Address of Issuer's Principal Executive Offices:

666 Third Avenue, 25th Floor, NEW YORK, NEW YORK , 10017.

Item 2.

Identity and Background

(a)

Velibor Krstic

(b)

Via Baraggie 23, 6612 Ascona, SWITZERLAND

(c)

Private Investor

(d)

NONE

(e)

NONE

(f)

SWITZERLAND

Item 3.

Source and Amount of Funds or Other Consideration

The Warrants previously held by the Reporting Person expired worthless on May 7, 2026. No funds or other consideration were used or received in connection with the expiration of the Warrants. All Warrants previously acquired by the Reporting Person were purchased using personal funds.

Item 4.

Purpose of Transaction

This Amendment No. 3 is being filed to report that the 1,577,500 Warrants previously held by the Reporting Person (SRTAW) expired worthless on May 7, 2026, in accordance with the terms of the Warrant Agreement dated September 12, 2019. As a result of this expiration, the Reporting Person ceased to be the beneficial owner of more than five percent of the class of securities. This filing constitutes the final amendment to the Schedule 13D of the Reporting Person regarding these securities.

Item 5.

Interest in Securities of the Issuer

(a)

The Reporting Person beneficially owns 0 Warrants, which represents 0.0% of the class.

(b)

The Reporting Person has sole power to vote or to direct the vote and sole power to dispose or to direct the disposition of 0 Warrants.

(c)

The only transaction in the securities of the Issuer since the last filing is the natural expiration of 1,577,500 Warrants (SRTAW) at a price of 0.00 dollars on May 7, 2026.

(d)

Not applicable.

(e)

The Reporting Person ceased to be the beneficial owner of more than five percent of the class of securities on May 7, 2026.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer

To the best knowledge of the Reporting Person, there are no contracts, arrangements, understandings or relationships (legal or otherwise) among the person named in Item 2 and between such person and any person with respect to any securities of the Issuer.

Item 7.

Material to be Filed as Exhibits.

NONE

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Krstic Velibor

Signature:	/s/ Velibor Krstic
Name/Title:	Velibor Krstic, Individual Investor
Date:	05/08/2026