Follow the people · Insider
Michael Messinger
Michael Messinger files insider transactions with the SEC as a chief financial officer of SeaStar Medical Holding (ICU). We hold 1 disclosed purchase or sale filed since 8 October 2014, 1 of them in the last 90 days.
- Files forICU
- Disclosed buys and sells1 in all, 1 in the last 90 days
- Last disclosure19 August 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 9 December 2025 — 18 August 2026Chief Financial Officer · SeaStar Medical Holding (ICU)2 Form 4 lines · source: SEC Form 4
- Filed 11 September 2014 — 14 February 2023Chief Financial Officer · Contrafect (CFRX)8 Form 4 lines · source: SEC Form 4
Everything they disclosed
10 entries, newest first — one per disclosure report, one per Form 4 line- ▲ bought on the open market 750 shares of SeaStar Medical HoldingSEC Form 419 August 2026Common Stock, par value $0.0001 · traded 18 August 2026 · filed 19 August 2026
- ▲ bought on the open market 14,500 shares of SeaStar Medical HoldingSEC Form 411 December 2025Common Stock · traded 9 December 2025 · filed 11 December 2025
- was granted 25,000 shares of Contrafect (a derivative holding)SEC Form 416 February 2023Options (Right to Buy) · traded 14 February 2023 · filed 16 February 2023
- was granted 165,000 shares of Contrafect (a derivative holding)SEC Form 417 February 2022Options (Right to Buy) · traded 15 February 2022 · filed 17 February 2022
- was granted 80,000 shares of Contrafect (a derivative holding)SEC Form 414 April 2021Options (Right to Buy) · traded 8 April 2021 · filed 14 April 2021
- was granted 75,000 shares of Contrafect (a derivative holding)SEC Form 415 June 2020Options (Right to Buy) · traded 11 June 2020 · filed 15 June 2020
- ▲ bought on the open market 5,000 shares of ContrafectSEC Form 416 December 2019Common Stock, par value $0.0001 per share · traded 13 December 2019 · filed 16 December 2019
- ▲ bought on the open market 800 shares of ContrafectSEC Form 426 July 2017Common Stock, par value $0.0001 per share · traded 25 July 2017 · filed 26 July 2017
- ▲ bought on the open market 400 shares of Contrafect (a derivative holding)SEC Form 426 July 2017Warrants (Right to Buy) · traded 25 July 2017 · filed 26 July 2017
- was granted 13,291 shares of ContrafectSEC Form 48 October 2014Common Stock, par value $0.0001 per share · traded 11 September 2014 · filed 8 October 2014
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.