ICU

Seastar Medical Holding Corp
Health CareUSCUSIP 81256L302◍ Confluence graph
Tracked 13F Holders
18
-10 QoQ
13F Value (tracked)
$464K
Insider Net · 180d
$2K
1↑ 0↓
Recent Filings
15
Smart-money sentimentBullish
BearishBullish
13F funds (latest Q)2 adding · 0 trimming
Insider net (180d)+$2K

Who owns ICU?

18 tracked 13F filers

18 tracked 13F filers disclose a position in ICU as of the latest SEC 13F filings, a combined $464K in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1GEODE CAPITAL MANAGEMENT, LLC
$182K
50K
−11%
Reduced · −6K sh
Q2 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$107K
29K
First observed position
No prior filed position
Q1 2026
3JANE STREET GROUP, LLC
$104K
28K
−78%
Reduced · −99K sh
Q1 2026
4VANGUARD FIDUCIARY TRUST CO
$51K
14K
First observed position
No prior filed position
Q1 2026
5PNC FINANCIAL SERVICES GROUP, INC.
$7K
2K
−90%
Reduced · −16K sh
Q1 2026
6Tower Research Capital LLC (TRC)
$5K
1K
New
+1K sh
Q1 2026
7BlackRock, Inc.
$3K
913
−90%
Reduced · −8K sh
Q1 2026
8UBS Group AG
$3K
793
−94%
Reduced · −12K sh
Q1 2026
9OSAIC HOLDINGS, INC.
$854
230
−90%
Reduced · −2K sh
Q1 2026
10NewEdge Advisors, LLC
$647
176
Held
Q2 2026
11Vanguard Global Advisers, LLC
$614
165
First observed position
No prior filed position
Q1 2026
12TD Waterhouse Canada Inc.
$106
22
Held
Q2 2026
13MORGAN STANLEY
$74
20
−90%
Reduced · −180 sh
Q1 2026
14SBI Securities Co., Ltd.
$51
14
Held
Q2 2026
15SOA Wealth Advisors, LLC.
$22
6
Held
Q2 2026
16Caitong International Asset Management Co., Ltd
$7
2
New
+2 sh
Q2 2026
17HighMark Wealth Management LLC
$7
2
Held
Q2 2026
18CWM, LLC
$4
1
Held
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is ICU being bought or sold by institutions?

Last quarter, 2 funds opened a new position in ICU, while 0 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
2
funds
Added
0
funds
Reduced
0
funds
Exited
0
funds

Funds that own ICU also own

CompanyCo-held byCombined value
NVIDIA CORPNVDA3 funds$539.7M
APPLE INCAAPL3 funds$273.9M
MICRON TECHNOLOGY INCMU3 funds$220.3M
TESLA INCTSLA3 funds$184.1M
ALPHABET INC-CL AGOOGL3 funds$170.3M
AMAZON.COM INCAMZN3 funds$123.8M
ALPHABET INC-CL CGOOG3 funds$102.6M
ADVANCED MICRO DEVICESAMD3 funds$91.2M
INTEL CORPINTC3 funds$71.2M
BERKSHIRE HATHAWAY INC-CL BBRK/B3 funds$52.3M
TAIWAN SEMICONDUCTOR-SP ADRTSM3 funds$48.8M
JOHNSON & JOHNSONJNJ3 funds$45.8M

Ranked by how many of ICU's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$2K
1 insiders
Sells · 180d
$0
0 insiders
Net
$2K
1 P/S txns
Signal
Net Buying
open-market
DateInsiderRoleActionSharesValue
Aug 18, 2026Messinger MichaelChief Financial OfficerBuy (P)750$2K
Dec 19, 2025Baird Jennifer ADirectorBuy (P)4K$1K
Dec 9, 2025Messinger MichaelChief Financial OfficerBuy (P)15K$5K
Aug 27, 2025Van Heel KennethDirectorBuy (P)10K$9K
Aug 26, 2025Van Heel KennethDirectorBuy (P)25K$22K
Aug 22, 2025Chung KevinChief Medical OfficerBuy (P)10K$8K
Jun 30, 2025Baird Jennifer ADirectorBuy (P)10K$4K
Jun 24, 2025Neuman JohnDirectorBuy (P)40K$14K
May 20, 2025Chung KevinChief Medical OfficerBuy (P)5K$6K
May 20, 2025Baird Jennifer ADirectorBuy (P)10K$13K
Dec 11, 2024Neuman JohnDirectorBuy (P)10K$20K
Nov 18, 2024Chung KevinChief Medical OfficerBuy (P)4K$8K

Institutional ownership over time

7 funds+5 since Q4 2025
0917Q4 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $183K

Share classes

Class13F holdersValue held
ICUthis pageStock18 funds$464K
ICUCWWTS11 funds$931K

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

15 shown

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Ask your agent what changed in ICU

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/ICU/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for ICU.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ICU. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.