Seastar Medical Holding Corporation Insider Trading

ICU

⊜ Compare

Last 12 months

Insiders bought 9K on the open market and sold nothing.

Net open-market

+9K

3 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

2 / 0

executives and directors

Last open-market buy

Aug 2026

Aug 18, 2026

Get an email when ICU's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 18	Michael Messinger Chief Financial Officer	Bought	750	$3.27	2K	43%	Form 4
Dec 19, 2025	Jennifer A Baird Director	Bought	4,200	$0.24	1K	13%	Form 4
Dec 9, 2025	Michael Messinger Chief Financial Officer	Bought	14,500	$0.35	5K	483%	Form 4
Aug 26, 2025 – Aug 27, 2025	Kenneth Van Heel Director	Bought 2 parts	35,000	$0.88 average	31K	243%	Form 4
Aug 22, 2025	Kevin Chung Chief Medical Officer	Bought	10,000	$0.80	8K	21%	Form 4
Jun 30, 2025	Jennifer A Baird Director	Bought	10,000	$0.42	4K	56%	Form 4
Jun 24, 2025	John Neuman Director	Bought	40,000	$0.36	14K	100%	Form 4
May 20, 2025	Jennifer A Baird Director	Bought	10,000	$1.28	13K	New	Form 4
May 20, 2025	Kevin Chung Chief Medical Officer	Bought	4,500	$1.25	6K	33%	Form 4
Dec 11, 2024	John Neuman Director	Bought	10,000	$2.04	20K	33%	Form 4
Nov 18, 2024	Kevin Chung Chief Medical Officer	Bought	4,250	$1.99	8K	45%	Form 4

Aug 18
Michael Messinger
Chief Financial Officer · bought 750 at $3.27
2K
43% of stake
Dec 19, 2025
Jennifer A Baird
Director · bought 4,200 at $0.24
1K
13% of stake
Dec 9, 2025
Michael Messinger
Chief Financial Officer · bought 14,500 at $0.35
5K
483% of stake
Aug 26, 2025 – Aug 27, 2025
Kenneth Van Heel
Director · bought 35,000 at avg $0.88
31K
243% of stake
Aug 22, 2025
Kevin Chung
Chief Medical Officer · bought 10,000 at $0.80
8K
21% of stake
Jun 30, 2025
Jennifer A Baird
Director · bought 10,000 at $0.42
4K
56% of stake
Jun 24, 2025
John Neuman
Director · bought 40,000 at $0.36
14K
100% of stake
May 20, 2025
Jennifer A Baird
Director · bought 10,000 at $1.28
13K
New position
May 20, 2025
Kevin Chung
Chief Medical Officer · bought 4,500 at $1.25
6K
33% of stake
Dec 11, 2024
John Neuman
Director · bought 10,000 at $2.04
20K
33% of stake
Nov 18, 2024
Kevin Chung
Chief Medical Officer · bought 4,250 at $1.99
8K
45% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch ICU, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

Peers

Surgical & Medical Instruments & Apparatus · Pick stocks to compare with ICU

CompareIntrinsic value

EBRCZEBR Systems, Inc.

$0.08+0.00%0

VYCOVycor Medical Inc.

$0.05-3.85%50

SINTSintx Technologies Inc.

$1.66-3.49%10

PETVPetvivo Holdings Inc

$0.60+1.69%26

VTAKCatheter Precision, Inc.

$0.56-5.08%40

FEMYFemasys Inc.

$1.44+2.86%30

EMEDElectromedical Technologies Inc.

$0.00+0.00%26

HRGNHarvard Apparatus Regenerative Technology Inc.

$2.30+0.00%10

Spot a number that looks wrong? Check it in ICU's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

2 of 2 free stocks used today

Keep analysing ICU

Create a free account and get 14 days of Premium: every stock and every tool.

Unlimited stocksQuality, fair value and dividends for 10,000+ stocks
Stock screenerFilter on quality, valuation and dividend safety
Portfolio trackerReal return, dividend calendar and portfolio quality
Editable DCFChange the assumptions and watch fair value move
Compare side by sideUp to 10 stocks in one table
Unlimited alertsPrice, P/E, Quality Score and yield

No card. Moves to Free after, unless you upgrade.

Already have an account?

Or come back tomorrow. Stocks on your watchlist are always free to view.