Ticker · CUSIP 44930G107
Holders (tracked)
11
Combined shares
1,396,305
Combined value
$199.21M
Last close
$129.96
Quarter
2025Q4
Price · 1Y$129.96-8.71 (-6.28%)H $158.54 · L $108.10 · Avg Vol 270K
Congress sell
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is -8.9% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
21 events
- D.E. Shaw & Co. opened position2026-02-17+6,605 shares · 2025Q4Position
- +210,899 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−1,001,882 shares · 2025Q4Position
- Steve Cohen (Point72) added2026-02-17+285,843 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+1,008 shares · 2025Q4Position
- Wellington Management added2026-02-17+10,606 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+808 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−33,100 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+407,115 shares · 2025Q4Position
- Mario Gabelli (GAMCO) trimmed2026-02-05−1,088 shares · 2025Q4Position
- −2,109 shares · 2025Q3Position
- AQR Capital Management added2025-11-14+166 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) added2025-11-14+690,694 shares · 2025Q3Position
- Steve Cohen (Point72) trimmed2025-11-14−329,615 shares · 2025Q3Position
- D.E. Shaw & Co. exited2025-11-14−56,360 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+1,225 shares · 2025Q3Position
- Wellington Management added2025-11-14+102,356 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−17,200 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−277,210 shares · 2025Q3Position
- Norges Bank (Norway SWF) added2025-11-12+44,270 shares · 2024Q3Position
- Mario Gabelli (GAMCO) added2025-11-12+590 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ICUI…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| AQR Capital Management | 2016Q1 | $120.66 | +7.7% | $1.2M |
| Mario Gabelli (GAMCO) | 2016Q1 | $121.21 | +7.2% | $3.1M |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $126.95 | +2.4% | $11.3M |
| Renaissance Technologies | 2016Q1 | $136.77 | -5.0% | $4.7M |
| D.E. Shaw & Co. | 2016Q1 | $140.28 | -7.4% | $858K |
| Steve Cohen (Point72) | 2017Q3 | $141.30 | -8.0% | $43.9M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $141.53 | -8.2% | $598K |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $141.53 | -8.2% | $598K |
| Wellington Management | 2016Q1 | $162.43 | -20.0% | $32.3M |
| T. Rowe Price | 2016Q1 | $182.10 | -28.6% | $3.1M |
| Norges Bank (Norway SWF) | 2016Q1 | $556.90 | -76.7% | $52.9M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions3
- Norges Bank (Norway SWF)+407,115$58.1M
- Ken Griffin (Citadel Advisors)+210,899$30.1M
- D.E. Shaw & Co.+6,605$942K
Added to4
- Steve Cohen (Point72)+285,843$40.8M
- Wellington Management+10,606$1.5M
- AQR Capital Management+808$115K
- T. Rowe Price+1,008$144
Trimmed3
- Izzy Englander (Millennium Mgmt)−1,001,882$142.9M
- Renaissance Technologies−33,100$4.7M
- Mario Gabelli (GAMCO)−1,088$155K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 16 | $50.75B |
| 2022Q2 | 12 | $32.94B |
| 2022Q3 | 13 | $690.9M |
| 2022Q4 | 15 | $730.9M |
| 2023Q1 | 16 | $736.8M |
| 2023Q2 | 14 | $767.2M |
| 2023Q3 | 13 | $242.8M |
| 2023Q4 | 12 | $342.4M |
| 2024Q1 | 14 | $549.6M |
| 2024Q2 | 14 | $669.8M |
| 2024Q3 | 14 | $490.4M |
| 2024Q4 | 13 | $294.8M |
| 2025Q1 | 13 | $158.4M |
| 2025Q2 | 11 | $184.3M |
| 2025Q3 | 9 | $182.8M |
| 2025Q4 | 11 | $199.2M |
Congress members trading this stock
| Date | Member | Type | Amount range | Filing |
|---|---|---|---|---|
| 2025-05-06 | Gilbert Cisneros | Sell (P) | $1K – $15K | PDF ↗ |
Who owns ICUI
11 super-investors · 2025Q4
Tracked stake
1.40M
shares
Combined value
$199M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New4Added4Trim3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Norges Bank Norway SWF | 407.1K | $58M |
| 2 | Steve Cohen Point72 | 337.7K | $48M |
| 3 | Wellington Management | 248.4K | $35M |
| 4 | Ken Griffin Citadel Advisors | 210.9K | $30M |
| 5 | Izzy Englander Millennium Mgmt | 87.1K | $12M |
| 6 | Renaissance Technologies | 36.3K | $5M |
| 7 | T. Rowe Price | 24.0K | $3M |
| 8 | Mario Gabelli GAMCO | 24.0K | $3M |
| 9 | AQR Capital Management | 9.5K | $1M |
| 10 | D.E. Shaw & Co. | 6.6K | $942K |
| 11 | Ken Griffin Citadel Advisors | 4.6K | $656K |
Recent moves
20 transactions
- +10,606 · 2025Q4
- −1,001,882 · 2025Q4
- +808 · 2025Q4
- +285,843 · 2025Q4
- +210,899 · 2025Q4
- +1,008 · 2025Q4
- +6,605 · 2025Q4
- −33,100 · 2025Q4
- +407,115 · 2025Q4
- −1,088 · 2025Q4
- −2,109 · 2025Q3
- −329,615 · 2025Q3
- SOLDD.E. Shaw & Co.−56,360 · 2025Q3
- +690,694 · 2025Q3
- +1,225 · 2025Q3
- +102,356 · 2025Q3
- +166 · 2025Q3
- −277,210 · 2025Q3
- −17,200 · 2025Q3
- +44,270 · 2024Q3
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