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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•20 filings

ICU

SeaStar Medical Holding Corp

Net purchases of $2.5K over the last 3 months

1 buyer account for the net balance. There is no cluster of three distinct buyers within 30 days. We found 2 CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

+$2,453

1 buyers · 0 sellers

12-month purchases

$8,538

2 distinct insiders

12-month sales

$0.00

0 distinct insiders

Highlighted alerts

6

0 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

2 executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

19
Raw transactions
Everything returned by the filing
6
Voluntary view
P/S trades after deterministic checks
13
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
Code
A
Shares
10,288
Price
$0.00
Footnotes
1

Represents a restricted stock unit award ("RSU"). The RSU will vest in three equal installment on July 1, 2026, November 1, 2026, and March 1, 2027.

Raspberry interpretation
Informational — no alert

Reason: administrative_code.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

6 transactions

Messinger Michael

Chief Financial Officer

PurchaseAlert
Shares
750
Price
$3.27
Value
$2,453
Open SEC filing

Baird Jennifer A

Director

PurchaseAlert
Shares
4,200
Price
$0.24
Value
$987.42
Open SEC filing

Messinger Michael

Chief Financial Officer

PurchaseAlert
Shares
14,500
Price
$0.35
Value
$5,098
Open SEC filing

Van Heel Kenneth

Director

PurchaseAlert
Shares
10,000
Price
$0.86
Value
$8,565
Open SEC filing

Van Heel Kenneth

Director

PurchaseAlert
Shares
25,000
Price
$0.89
Value
$22,248
Open SEC filing

Chung Kevin

Chief Medical Officer

PurchaseAlert
Shares
10,000
Price
$0.80
Value
$8,000
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.