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

Steele ExpCo Holdings, LLC

Disclosed value leader

Steele ExpCo Holdings, LLC

Comparable rows

50/50

Latest evidence

24 Sep 2026

Top shareholders Insider holders Latest transactions
Public ticker
SRTA on Nasdaq
Parsed ownership sources
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
Steele ExpCo Holdings, LLC
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
Steele ExpCo Holdings, LLC
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
24 Sep 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001779128
Issuer 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
Steele ExpCo Holdings, LLC
Disclosed value leader
Steele ExpCo Holdings, LLC
Comparable rows
50/50
Latest evidence
24 Sep 2026
13D/G 13F 3/4/5 Lead comparable stake: 9% 13D/G row: Steele ExpCo Holdings, LLC Showing 1-8 of 50 holder rows.

Quick read

Steele ExpCo Holdings, LLC leads the comparable SEC ownership view at 9%.

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.

Open SEC evidence Opens Steele ExpCo Holdings, LLC's linked filing trail.
Comparable ownership Top 5
Steele ExpCo Holdings, LLC 9%
Third Point LLC 5.8%
Northern Right Capital Management... 5.1%
BlackRock, Inc. 5.1%
ARK Investment Management LLC 3.2%

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
Steele ExpCo Holdings, LLC
13D/G
13D/G
9%
$40,248,840
7,923,000 shares
 $0 30 Jun 2026
Third Point LLC
13F 13D/G
Company
13F 13D/G
5.8%
from 13D/G
$26,350,000
5,000,000 shares
 — 30 Jun 2026
Northern Right Capital Management, L.P.
13D/G 13F
Company
13D/G 13F
5.1%
$28,456,580
4,398,235 shares
 $0 11 Jun 2026
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
5.1%
from 13D/G
$25,483,170
4,835,516 shares
 — 30 Jun 2026
ARK Investment Management LLC
13D/G 13F
Company
13D/G 13F
3.2%
$14,398,979
2,730,855 shares
 -$24,910,497 30 Jun 2026
Robert S. Wiesenthal
3/4/5
Director
3/4/5
6%
$28,067,471
5,325,896 shares
 — 30 Jul 2026
Melissa M. Tomkiel
3/4/5
Co-CEO and General Counsel, Director
3/4/5
2.4%
$11,492,574
2,153,678 shares
mixed-class rows
 — 24 Sep 2026
William A. Heyburn
3/4/5
Co-CEO and CFO, Director
3/4/5
2%
$9,263,869
1,757,850 shares
 +$76,044 24 Sep 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: -$409,175.

Buys
$97,869
Insiders: 2
Sells
$507,044
Insiders: 2
Net
-$409,175
Shares: -70,272
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 22,000 Shares: 92,272
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 5,091 $0 $29,273 -$29,273
3-6 0 65,181 $0 $382,267 -$382,267
6-9 0 0 $0 $0 $0
9-12 22,000 22,000 $97,869 $95,504 +$2,365

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 Forms 3/4/5 holder
Robert S. Wiesenthal
Net 12M change
-$409,175
Latest report
24 Sep 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Robert S. Wiesenthal Director $28,067,471 Median 30 Jul 2026
Melissa M. Tomkiel Co-CEO and General Counsel, Director $11,492,574 Mixed 24 Sep 2026
William A. Heyburn Co-CEO and CFO, Director $9,263,869 +$76,044 +0.83% Median 24 Sep 2026
Louis R. Verdetto CEO, Clinical Services $6,641,927 Median 08 Sep 2026
Scott M. Wunsch CEO, Logistics $5,512,577 Median 08 Sep 2026
Eric Affeldt Director $2,353,916 Mixed 01 Aug 2025
Edward M. Philip Director $1,396,961 Median 30 Jul 2026
Seth J. Bacon CEO, Trinity Air Medical $1,001,908 Mixed 13 Jun 2024
Amir Cohen Chief Accounting Officer $933,601 -$382,267 -29% Median 08 Sep 2026
Andrew C. Lauck Director $900,653 +$21,825 +2.5% Median 30 Jul 2026
Reginald Love Director $842,265 -$124,777 -13% Filing P/S 10 Aug 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
David Zaslav Director $562,911 Mixed 22 Sep 2021
William L. Cook III Director $514,726 Median 30 Jul 2026
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
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Tax liability -5.3% -98,356 1,757,850 24 Sep 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Award 10.6% 177,858 1,856,206 24 Sep 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Tax liability -4.05% -90,797 2,153,678 24 Sep 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Award 8.61% 177,858 2,244,475 24 Sep 2026 Direct
Louis R. Verdetto SRTA Class A common stock, $0.0001 par value per share Tax liability -0.5% -5,697 1,128,096 08 Sep 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Tax liability -0.85% -5,711 663,043 08 Sep 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -2.56% -4,645 177,154 08 Sep 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Tax liability -1.42% -29,730 2,066,617 08 Sep 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Tax liability -1.85% -31,671 1,678,348 08 Sep 2026 Direct
Reginald Love SRTA Class A common stock, $0.0001 par value per share Sale -3.36% $29,273 $5.75 -5,091 146,481 10 Aug 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Tax liability -2.05% -13,992 668,754 31 Jul 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Tax liability -10.4% -199,209 1,710,019 31 Jul 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Tax liability -9.2% -212,309 2,096,347 31 Jul 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -15.8% -34,015 181,799 31 Jul 2026 Direct
William L. Cook III SRTA Class A common stock, $0.0001 par value per share Award 83.5% 44,438 97,671 30 Jul 2026 Direct
Reginald Love SRTA Class A common stock, $0.0001 par value per share Award 33.1% 37,675 151,572 30 Jul 2026 Direct
Edward M. Philip SRTA Class A common stock, $0.0001 par value per share Award 13.2% 30,913 265,078 30 Jul 2026 Direct
Robert S. Wiesenthal SRTA Class A common stock, $0.0001 par value per share Award 0.95% 50,234 5,325,896 30 Jul 2026 Direct
Andrew C. Lauck SRTA Class A common stock, $0.0001 par value per share Award 26% 35,260 170,902 30 Jul 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Award 9.14% 57,172 682,746 30 Jul 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Award 23.3% 360,231 1,909,228 30 Jul 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Award 22% 415,882 2,308,656 30 Jul 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Award 47.2% 69,206 215,814 30 Jul 2026 Direct
William A. Heyburn SRTA Class A common stock, $0.0001 par value per share Tax liability -2% -31,671 1,548,997 08 Jun 2026 Direct
Amir Cohen SRTA Class A common stock, $0.0001 par value per share Tax liability -3.08% -4,655 146,608 08 Jun 2026 Direct
Melissa M. Tomkiel SRTA Class A common stock, $0.0001 par value per share Tax liability -1.55% -29,730 1,892,774 08 Jun 2026 Direct
Scott M. Wunsch SRTA Class A common stock, $0.0001 par value per share Tax liability -0.88% -5,550 625,574 08 Jun 2026 Direct
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
* marks a reported price that did not pass the local price check.
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