SEC ownership of Strata Critical Medical, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001779128.

Comparable stake leader

ARK Investment Management LLC

Disclosed value leader

ARK Investment Management LLC

Comparable rows

50/50

Latest evidence

21 May 2026

Top shareholders Insider holders Latest transactions
Symbol
SRTA, SRTAW on Nasdaq
Ownership evidence mix
13D/G, 13F, and 3/4/5
Largest current holder
ARK Investment Management LLC
Ownership snapshot 2 signals
Latest large-stake holder
ARK Investment Management LLC
Latest evidence date
21 May 2026
Issuer identity 2 identity fields
CIK
0001779128
Location
New York, NY

Ownership snapshot

Top shareholders of Strata Critical Medical, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
ARK Investment Management...
Disclosed value leader
ARK Investment Management...
Comparable rows
50/50
Latest evidence
21 May 2026
13D/G 13F 3/4/5 Lead comparable stake: 8.6% 13D/G row: ARK Investment Management LLC Showing 1-8 of 50 holder rows.

Quick read

ARK Investment Management LLC leads the comparable SEC ownership view at 8.6%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Comparable ownership Top 5
ARK Investment Management LLC 8.6%
Third Point LLC 5.8%
BlackRock, Inc. 5.1%
Robert S. Wiesenthal 6.1%
Melissa M. Tomkiel 2.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
ARK Investment Management LLC
13D/G 13F
Company
13D/G 13F
8.6%
$36,679,997
7,455,284 shares
 +$5,169,439 31 Mar 2026
Third Point LLC
13D/G 13F
Company
13D/G 13F
5.8%
$25,300,000
5,000,000 shares
 $0 30 Sep 2025
BlackRock, Inc.
13D/G 13F
Company
13D/G 13F
5.1%
$21,091,147
4,384,945 shares
 +$760,084 31 Dec 2025
Robert S. Wiesenthal
3/4/5
Director
3/4/5
6.1%
$23,371,182
5,275,662 shares
 — 29 Aug 2025
Melissa M. Tomkiel
3/4/5
Co-CEO and General Counsel, Director
3/4/5
2.2%
$8,178,949
1,922,504 shares
mixed-class rows
 -$644,664 23 Apr 2026
William A. Heyburn
3/4/5
Co-CEO and CFO, Director
3/4/5
1.8%
$6,607,350
1,580,668 shares
 -$562,367 23 Apr 2026
Louis R. Verdetto
3/4/5
CEO Keystone Perfusion Service
3/4/5
1.5%
$6,456,727
1,266,025 shares
 — 02 Dec 2025
Scott M. Wunsch
3/4/5
CEO, Logistics
3/4/5
1.2%
$4,239,084
1,014,111 shares
 — 23 Apr 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$1,662,977.

Buys
$97,869
Insiders: 2
Sells
$1,760,847
Insiders: 4
Net
-$1,662,977
Shares: -360,094
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 22,000 Shares: 382,094
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 65,181 $0 $382,267 -$382,267
3-6 22,000 0 $97,869 $0 +$97,869
6-9 0 22,000 $0 $95,504 -$95,504
9-12 0 294,913 $0 $1,283,076 -$1,283,076

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 21 reporting-owner rows connected to Strata Critical Medical, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
21
Largest current holder
Robert S. Wiesenthal
Net 12M change
-$1,662,977
Latest report
21 May 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Robert S. Wiesenthal Director $23,371,182 Mixed 29 Aug 2025
Melissa M. Tomkiel Co-CEO and General Counsel, Director $8,178,949 -$644,664 -7.3% Mixed 23 Apr 2026
William A. Heyburn Co-CEO and CFO, Director $6,607,350 -$562,367 -7.8% Median 23 Apr 2026
Louis R. Verdetto CEO Keystone Perfusion Service $6,456,727 Mixed 02 Dec 2025
Scott M. Wunsch CEO, Logistics $4,239,084 Median 23 Apr 2026
Eric L. Affeldt Director $2,353,916 Mixed 01 Aug 2025
Seth J. Bacon CEO, Trinity Air Medical $1,001,908 Mixed 13 Jun 2024
Edward M. Philip Director $948,368 Mixed 01 Aug 2025
Amir Cohen Chief Accounting Officer $893,964 -$382,267 -30% Filing P/S 21 May 2026
John Borthwick Director $826,106 Mixed 01 Aug 2025
Kenneth B. Lerer Director $797,278 Mixed 01 Aug 2025
Susan M. Lyne Director $758,099 Mixed 01 Aug 2025
Andrew C. Lauck Director $592,077 +$21,825 +3.8% Filing P/S 05 Dec 2025
David Zaslav Director $562,911 Mixed 22 Sep 2021
Reginald Love Director $497,729 -$95,504 -16% Filing P/S 20 Nov 2025
William L. Cook III Director $271,488 Mixed 02 Dec 2025
Brandon A. Keene Chief Innovation Officer $57,346 Mixed 18 Nov 2022
Jane C. Garvey Director $22,188 Mixed 08 Aug 2023
Anatoli Arkhipenko Chief Technology Officer $20,116 Mixed 09 Nov 2022
Experience Sponsor LLC 10%+ Owner Mixed 20 Jan 2022

Recent insider transactions for Strata Critical Medical, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Sale -21.2% $239,798 $5.91 -40,575 151,263 22 May 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Sale -5.1% $59,637 $5.79 -10,300 191,838 21 May 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Sale -6.61% $82,832 $5.79 -14,306 202,138 11 May 2026 Direct
Velibor Krstic SRTA Warrants to purchase Class A Common Stock Expiration (or cancellation) of long derivative position with value received -100% -1,577,500 0 07 May 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Tax liability -2.16% -13,922 631,124 24 Apr 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -15.9% -40,960 216,444 24 Apr 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Tax liability -14.3% -321,750 1,922,504 24 Apr 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Tax liability -16% -301,731 1,580,668 24 Apr 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Award 9.73% 57,172 645,046 23 Apr 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Award 48% 83,505 257,404 23 Apr 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Award 39% 630,264 2,244,254 23 Apr 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Award 40.8% 545,625 1,882,399 23 Apr 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Award 3.17% 18,067 587,874 16 Mar 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Tax liability -1.79% -29,372 1,613,990 08 Mar 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Tax liability -2.29% -31,314 1,336,774 08 Mar 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -1.34% -2,433 179,384 08 Mar 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Tax liability -0.63% -3,631 569,807 08 Mar 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Award 54.6% 64,191 181,817 24 Feb 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Award 9.84% 51,353 573,438 24 Feb 2026 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Options Exercise 20.3% 276,960 1,643,362 02 Jan 2026 Direct
Melissa M. Tomkiel BLDE Stock Option (right to buy) Options Exercise -100% -276,960 0 02 Jan 2026 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Tax liability -2.43% -34,018 1,366,402 10 Dec 2025 Direct
William A. Heyburn BLDE Class A common stock, $0.0001 par value per share Tax liability -2.52% -35,348 1,368,088 10 Dec 2025 Direct
Scott M. Wunsch BLDE Class A common stock, $0.0001 par value per share Tax liability -6.87% -21,643 293,395 10 Dec 2025 Direct
Amir Cohen BLDE Class A common stock, $0.0001 par value per share Tax liability -3.06% -3,716 117,626 10 Dec 2025 Direct
William A. Heyburn BLDE Class A common stock, $0.0001 par value per share Purchase 1.23% $76,044 $4.47 17,000 1,403,436 09 Dec 2025 Direct
Andrew C. Lauck BLDE Class A common stock, $0.0001 par value per share Purchase 3.83% $21,825 $4.36 5,000 135,642 05 Dec 2025 Direct
Scott M. Wunsch BLDE Class A common stock, $0.0001 par value per share Award 4.44% 13,395 315,038 02 Dec 2025 Direct
Louis R. Verdetto BLDE Class A common stock, $0.0001 par value per share Award 5.97% 63,918 1,133,793 02 Dec 2025 Direct
William L. Cook III BLDE Class A common stock, $0.0001 par value per share Award 53,233 53,233 02 Dec 2025 Direct
Reginald Love BLDE Class A common stock, $0.0001 par value per share Sale -8.81% $48,070 $4.37 -11,000 113,897 20 Nov 2025 Direct
Reginald Love BLDE Class A common stock, $0.0001 par value per share Sale -8.09% $47,434 $4.31 -11,000 124,897 19 Nov 2025 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Options Exercise 2.02% 27,778 1,400,420 07 Nov 2025 Direct
Melissa M. Tomkiel BLDE Stock Option (right to buy) Options Exercise -9.12% -27,778 276,960 07 Nov 2025 Direct
Amir Cohen BLDE Class A common stock, $0.0001 par value per share Tax liability -14.4% -20,497 121,342 03 Nov 2025 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Tax liability -7.21% -106,659 1,372,642 03 Nov 2025 Direct
William A. Heyburn BLDE Class A common stock, $0.0001 par value per share Tax liability -6.74% -100,133 1,386,436 03 Nov 2025 Direct
Amir Cohen BLDE Class A common stock, $0.0001 par value per share Award 41.8% 41,786 141,839 31 Oct 2025 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Award 16.4% 208,929 1,479,301 31 Oct 2025 Direct
William A. Heyburn BLDE Class A common stock, $0.0001 par value per share Award 13.9% 181,072 1,486,569 31 Oct 2025 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Options Exercise 4.57% 55,556 1,270,372 22 Oct 2025 Direct
Melissa M. Tomkiel BLDE Stock Option (right to buy) Options Exercise -15.4% -55,556 304,738 22 Oct 2025 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Options Exercise 4.79% 55,555 1,214,816 10 Oct 2025 Direct
Melissa M. Tomkiel BLDE Stock Option (right to buy) Options Exercise -13.4% -55,555 360,294 10 Oct 2025 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -3.77% -3,707 94,570 10 Sep 2025 Direct
Scott M. Wunsch BLDE Class A common stock, $0.0001 par value per share Tax liability -0.78% -2,378 301,643 10 Sep 2025 Direct
William A. Heyburn BLDE Class A common stock, $0.0001 par value per share Tax liability -2.64% -35,348 1,305,497 10 Sep 2025 Direct
Melissa M. Tomkiel BLDE Class A common stock, $0.0001 par value per share Tax liability -2.85% -34,018 1,159,261 10 Sep 2025 Direct
Amir Cohen BLDE Class A common stock, $0.0001 par value per share Tax liability -3.57% -3,707 100,053 10 Sep 2025 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -5.28% -5,483 98,277 04 Sep 2025 Direct
* marks a reported price that did not pass the local price check.
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