ICU insider buying
3 cluster buysSeaStar Medical Holding Corp · Healthcare
When two or more insiders at SeaStar Medical Holding Corp buy ICU on the open market around the same time, that clustered conviction is one of the highest-signal patterns in SEC filing data. Below is every cluster we've detected in ICU plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.
Detected clusters
- Dec 9 – Dec 19, 2025Detected Dec 19, 2025High conviction2 insidersTotal bought$6.1KMarket cap$19.1M
- May 20 – Aug 27, 2025Detected Aug 27, 2025High conviction4 insidersTotal bought$75.9KMarket cap$19.1M
- Jun 14 – Dec 11, 2024Detected Dec 11, 2024High conviction2 insidersTotal bought$165.9KMarket cap$19.1M
All notable open-market buys in ICU
Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Dec 19, 2025 | Baird Jennifer Acluster Director | 4,200 | $0.24 | $1.0K | SEC ↗ |
| Dec 9, 2025 | Messinger Michaelcluster Chief Financial Officer | 14,500 | $0.35 | $5.1K | SEC ↗ |
| Aug 27, 2025 | Van Heel Kennethcluster Director | 10,000 | $0.86 | $8.6K | SEC ↗ |
| Aug 26, 2025 | Van Heel Kennethcluster Director | 25,000 | $0.89 | $22.3K | SEC ↗ |
| Aug 22, 2025 | Chung Kevincluster Chief Medical Officer | 10,000 | $0.80 | $8.0K | SEC ↗ |
| Jun 30, 2025 | Baird Jennifer Acluster Director | 10,000 | $0.42 | $4.2K | SEC ↗ |
| Jun 24, 2025 | Neuman Johncluster Director | 40,000 | $0.36 | $14.4K | SEC ↗ |
| May 20, 2025 | Baird Jennifer Acluster Director | 10,000 | $1.28 | $12.8K | SEC ↗ |
| May 20, 2025 | Chung Kevincluster Chief Medical Officer | 4,500 | $1.25 | $5.6K | SEC ↗ |
| Dec 11, 2024 | Neuman Johncluster Director | 10,000 | $2.04 | $20.4K | SEC ↗ |
| Nov 18, 2024 | Chung Kevincluster Chief Medical Officer | 4,250 | $1.99 | $8.5K | SEC ↗ |
| Sep 30, 2024 | Chung Kevincluster Chief Medical Officer | 1,000 | $4.26 | $4.3K | SEC ↗ |
| Aug 15, 2024 | Neuman Johncluster Director | 10,000 | $5.24 | $52.4K | SEC ↗ |
| Jun 17, 2024 | Neuman Johncluster Director | 10,000 | $4.35 | $43.5K | SEC ↗ |
| Jun 14, 2024 | Neuman Johncluster Director | 10,000 | $3.69 | $36.9K | SEC ↗ |
More Healthcare stocks with insider cluster buys
ICU insider buying — FAQ
- Are insiders buying ICU stock?
- Yes — 5 distinct insiders have bought ICU (SeaStar Medical Holding Corp) on the open market, including 3 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Dec 22, 2025.
- How much ICU stock have insiders bought?
- Insiders have bought a combined $247.9K of ICU across 15 open-market purchases, based on SEC Form 4 filings.
- What is an insider cluster buy in ICU?
- A cluster buy is two or more distinct SeaStar Medical Holding Corp insiders — officers, directors, or 10% owners — each buying ICU on the open market within a rolling window. ICU has 3 detected cluster buys to date.
- Where does this ICU insider trading data come from?
- Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.
How we track insider buying in ICU
We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy ICU within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Every figure on this page traces back to an official filing; open any row to jump straight to the source document. What counts as a cluster buy?
This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding ICU.