PENUMBRA INC (PEN): Institutional Ownership
Hedge funds and institutional managers reporting a position in PEN · Health Care. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
27
13F filers
Aggregate Value
$941.3M
Across holders
Last Price
$316.63
2026-06-26
Sector
Health Care
GICS
Holder activity12 new10 added3 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 762K | $250.2M | 26.6% | 0.3% | Added | +$197.1M | Q1 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 465K | $152.8M | 16.2% | 1.2% | Added | +$145.6M | Q1 2026 |
| TUDOR INVESTMENT CORP ET AL CIK 0000923093 | Hedge Fund | 411K | $135.0M | 14.3% | 0.3% | New | — | Q1 2026 |
| SOROS FUND MANAGEMENT LLC CIK 0001029160 | Family Office | 203K | $66.8M | 7.1% | 0.7% | New | — | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 185K | $60.6M | 6.4% | 1.4% | New | — | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 135K | $44.3M | 4.7% | 0.1% | Reduced | $-4.9M | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 111K | $36.3M | 3.9% | 0.1% | Reduced | $-118.5M | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 75K | $24.6M | 2.6% | 0.0% | Added | +$24.6M | Q1 2026 |
| Hudson Bay Capital Management LP CIK 0001393825 | Hedge Fund | 75K | $24.5M | 2.6% | 0.1% | New | — | Q1 2026 |
| STEADFAST CAPITAL MANAGEMENT LP CIK 0001214822 | Hedge Fund | 95K | $24.4M | 2.6% | 0.4% | New | — | Q2 2025 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 68K | $22.3M | 2.4% | 0.1% | Added | +$18.6M | Q1 2026 |
| TWO SIGMA INVESTMENTS, LP CIK 0001179392 | Hedge Fund | 58K | $19.1M | 2.0% | 0.0% | Added | +$11.0M | Q1 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 56K | $18.5M | 2.0% | 0.0% | Added | +$15.3M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 53K | $16.3M | 1.7% | 0.0% | New | — | Q4 2025 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 30K | $9.7M | 1.0% | 0.0% | Added | +$8.2M | Q1 2026 |
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 26K | $8.6M | 0.9% | 0.0% | Unchanged | +$0 | Q1 2026 |
| MOORE CAPITAL MANAGEMENT, LP CIK 0001448574 | Hedge Fund | 25K | $8.2M | 0.9% | 0.2% | New | — | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 21K | $6.9M | 0.7% | 0.0% | Added | +$6.5M | Q1 2026 |
| BAILLIE GIFFORD & CO CIK 0001088875 | Institutional Manager | 11K | $3.5M | 0.4% | 0.0% | Reduced | $-3.6M | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 10K | $3.3M | 0.4% | 0.0% | Added | +$2.9M | Q1 2026 |
Added
Hedge Fund
$250.2M· 26.6% of total· 0.3% port· 762K sh· +$197.1M QoQ· Q1 2026
Added
Hedge Fund
$152.8M· 16.2% of total· 1.2% port· 465K sh· +$145.6M QoQ· Q1 2026
New
Hedge Fund
$135.0M· 14.3% of total· 0.3% port· 411K sh· — QoQ· Q1 2026
New
Family Office
$66.8M· 7.1% of total· 0.7% port· 203K sh· — QoQ· Q1 2026
New
Hedge Fund
$60.6M· 6.4% of total· 1.4% port· 185K sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$44.3M· 4.7% of total· 0.1% port· 135K sh· $-4.9M QoQ· Q1 2026
Reduced
Hedge Fund
$36.3M· 3.9% of total· 0.1% port· 111K sh· $-118.5M QoQ· Q1 2026
Added
Hedge Fund
$24.6M· 2.6% of total· 0.0% port· 75K sh· +$24.6M QoQ· Q1 2026
New
Hedge Fund
$24.5M· 2.6% of total· 0.1% port· 75K sh· — QoQ· Q1 2026
New
Hedge Fund
$24.4M· 2.6% of total· 0.4% port· 95K sh· — QoQ· Q2 2025
Added
Hedge Fund
$22.3M· 2.4% of total· 0.1% port· 68K sh· +$18.6M QoQ· Q1 2026
Added
Hedge Fund
$19.1M· 2.0% of total· 0.0% port· 58K sh· +$11.0M QoQ· Q1 2026
Added
Hedge Fund
$18.5M· 2.0% of total· 0.0% port· 56K sh· +$15.3M QoQ· Q1 2026
New
Hedge Fund
$16.3M· 1.7% of total· 0.0% port· 53K sh· — QoQ· Q4 2025
Added
Hedge Fund
$9.7M· 1.0% of total· 0.0% port· 30K sh· +$8.2M QoQ· Q1 2026
Unchanged
Institutional Manager
$8.6M· 0.9% of total· 0.0% port· 26K sh· +$0 QoQ· Q1 2026
New
Hedge Fund
$8.2M· 0.9% of total· 0.2% port· 25K sh· — QoQ· Q1 2026
Added
Hedge Fund
$6.9M· 0.7% of total· 0.0% port· 21K sh· +$6.5M QoQ· Q1 2026
Reduced
Institutional Manager
$3.5M· 0.4% of total· 0.0% port· 11K sh· $-3.6M QoQ· Q1 2026
Added
Hedge Fund
$3.3M· 0.4% of total· 0.0% port· 10K sh· +$2.9M QoQ· Q1 2026
Added
Hedge Fund
$2.9M· 0.3% of total· 0.0% port· 9K sh· +$2.7M QoQ· Q1 2026
New
Hedge Fund
$797K· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2025
New
Hedge Fund
$709K· 0.1% of total· 0.0% port· 2K sh· — QoQ· Q1 2026
New
Institutional Manager
$378K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q1 2026
New
Hedge Fund
$301K· 0.0% of total· 0.0% port· 918 sh· — QoQ· Q1 2026
New
Hedge Fund
$25K· 0.0% of total· 0.0% port· 100 sh· — QoQ· Q3 2025
Unchanged
Hedge Fund
$3K· 0.0% of total· 0.0% port· 10 sh· +$0 QoQ· Q1 2026
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