Penumbra Inc (PEN) — Institutional Holders, Q2 2026
453 institutional investment managers reported a PEN position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $10.8B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
PEN in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- JPMORGAN CHASEAdded · +668,835 sh+$211.2M
- ExodusPoint Capital ManagementAdded · +625,215 sh+$197.4M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded · +434,743 sh+$137.3M
- TWO SIGMA INVESTMENTSAdded · +369,909 sh+$116.8M
- BALYASNY ASSET MANAGEMENT L.P.Added · +328,067 sh+$103.6M
Biggest sellers
- BAILLIE GIFFORDSold out · -840,427 sh-$265.4M
- MILLENNIUM MANAGEMENTTrimmed · -397,525 sh-$125.5M
- CONGRESS ASSET MANAGEMENTTrimmed · -305,146 sh-$96.3M
- FMRTrimmed · -285,105 sh-$90.0M
- Invesco Ltd.Trimmed · -274,217 sh-$86.6M
PEN 13F holders ranked 1–100 of 453
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 4,297,555 sh | 4,297,555 | $1.4B | 0.02% | -0.8% |
| 2 | HBK INVESTMENTS L P#2 · 1,838,508 sh | 1,838,508 | $580.5M | 5.67% | +12.5% |
| 3 | VANGUARD CAPITAL MANAGEMENT#3 · 1,709,877 sh | 1,709,877 | $539.9M | 0.01% | +0.9% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT#4 · 1,667,276 sh | 1,667,276 | $526.4M | 0.02% | +0.8% |
| 5 | STATE STREET#5 · 1,243,258 sh | 1,243,258 | $392.6M | 0.01% | +4.8% |
| 6 | ExodusPoint Capital Management#6 · 1,090,430 sh | 1,090,430 | $344.3M | 2.22% | +134.4% |
| 7 | BALYASNY ASSET MANAGEMENT L.P.#7 · 1,090,163 sh | 1,090,163 | $344.2M | 0.43% | +43.0% |
| 8 | JPMORGAN CHASE#8 · 1,071,454 sh | 1,071,454 | $338.6M | 0.02% | +166.1% |
| 9 | GOLDMAN SACHS GROUP#9 · 847,104 sh | 847,104 | $267.5M | 0.02% | +17.6% |
| 10 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#10 · 834,903 sh | 834,903 | $263.6M | 0.12% | +108.6% |
| 11 | GEODE CAPITAL MANAGEMENT#11 · 796,471 sh | 796,471 | $251.5M | 0.01% | +0.1% |
| 12 | NORGES BANK#12 · 752,242 sh | 752,242 | $237.5M | 0.02% | — |
| 13 | UBS Group AG#13 · 703,822 sh | 703,822 | $222.2M | 0.03% | +25.6% |
| 14 | MILLENNIUM MANAGEMENT#14 · 700,611 sh | 700,611 | $221.2M | 0.08% | -36.2% |
| 15 | MORGAN STANLEY#15 · 591,824 sh | 591,824 | $186.9M | <0.01% | +47.5% |
| 16 | AQR Arbitrage#16 · 563,873 sh | 563,873 | $178.0M | 2.54% | +33.3% |
| 17 | WHITEBOX ADVISORS#17 · 506,881 sh | 506,881 | $160.0M | 2.09% | +13.9% |
| 18 | Capital World Investors#18 · 479,701 sh | 479,701 | $151.5M | 0.02% | +6.4% |
| 19 | CITADEL ADVISORS#19 · 448,763 sh | 448,763 | $141.7M | 0.02% | +121.4% |
| 20 | Neuberger Berman Group#20 · 438,553 sh | 438,553 | $138.5M | 0.09% | +44.4% |
| 21 | CITIGROUP#21 · 433,125 sh | 433,125 | $136.8M | 0.05% | -30.2% |
| 22 | TWO SIGMA INVESTMENTS#22 · 428,128 sh | 428,128 | $135.2M | 0.10% | +635.4% |
| 23 | TUDOR INVESTMENT ET AL#23 · 400,649 sh | 400,649 | $126.5M | 0.18% | -2.5% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT#24 · 343,713 sh | 343,713 | $108.5M | 0.01% | +6.6% |
| 25 | NORTHERN#25 · 333,064 sh | 333,064 | $105.2M | 0.01% | +3.8% |
| 26 | DIMENSIONAL FUND ADVISORS#26 · 326,120 sh | 326,120 | $103.0M | 0.02% | +0.1% |
| 27 | ALLIANCEBERNSTEIN L.P.#27 · 301,585 sh | 301,585 | $99.0M | 0.03% | +33.3% |
| 28 | BANK OF AMERICA#28 · 266,017 sh | 266,017 | $84.0M | <0.01% | +2.4% |
| 29 | Invesco Ltd.#29 · 263,980 sh | 263,980 | $83.4M | <0.01% | -51.0% |
| 30 | Magnetar Financial#30 · 255,841 sh | 255,841 | $80.8M | 0.74% | +1.8% |
| 31 | VANGUARD FIDUCIARY#31 · 251,746 sh | 251,746 | $79.5M | 0.02% | +1.8% |
| 32 | Bank of New York Mellon#32 · 235,328 sh | 235,328 | $74.3M | 0.01% | -4.5% |
| 33 | Champlain Investment Partners#33 · 219,032 sh | 219,032 | $69.2M | 1.78% | -55.4% |
| 34 | TIG Advisors#34 · 215,082 sh | 215,082 | $67.9M | 3.01% | +258.0% |
| 35 | LMR Partners LLP#35 · 213,893 sh | 213,893 | $67.5M | 0.25% | -27.7% |
| 36 | FMR#36 · 211,002 sh | 211,002 | $66.6M | <0.01% | -57.5% |
| 37 | Hudson Bay Capital Management#37 · 203,138 sh | 203,138 | $64.1M | 0.17% | -41.8% |
| 38 | D. E. Shaw#38 · 197,329 sh | 197,329 | $62.3M | 0.03% | -2.3% |
| 39 | ALPINE ASSOCIATES MANAGEMENT#39 · 188,986 sh | 188,986 | $59.7M | 3.73% | +43.2% |
| 40 | Melqart Asset Management (UK) Ltd#40 · 185,734 sh | 185,734 | $58.6M | 5.58% | +127.0% |
| 41 | CAXTON ASSOCIATES LLP#41 · 179,384 sh | 179,384 | $56.6M | 1.06% | -2.9% |
| 42 | ADAGE CAPITAL PARTNERS GP, L.L.C.#42 · 176,720 sh | 176,720 | $55.8M | 0.08% | +30.9% |
| 43 | Birnam Oak Advisors#43 · 171,277 sh | 171,277 | $54.1M | 8.78% | +78.4% |
| 44 | GLAZER CAPITAL#44 · 158,127 sh | 158,127 | $49.9M | 1.23% | +66.8% |
| 45 | Westchester Capital Management#45 · 157,472 sh | 157,472 | $49.7M | 2.43% | +105.5% |
| 46 | WATER ISLAND CAPITAL#46 · 150,456 sh | 150,456 | $47.5M | 4.42% | +25.3% |
| 47 | Woodline Partners#47 · 145,844 sh | 145,844 | $46.1M | 0.14% | -39.6% |
| 48 | Verition Fund Management#48 · 142,309 sh | 142,309 | $44.9M | 0.06% | +109.3% |
| 49 | Decagon Asset Management LLP#49 · 142,001 sh | 142,001 | $44.8M | 8.54% | -15.3% |
| 50 | Squarepoint Ops#50 · 138,413 sh | 138,413 | $43.7M | 0.05% | -6.4% |
| 51 | Slotnik Capital#51 · 133,000 sh | 133,000 | $42.0M | 10.85% | +31.7% |
| 52 | WESTFIELD CAPITAL MANAGEMENT#52 · 131,394 sh | 131,394 | $41.5M | 0.14% | New |
| 53 | Jupiter Topco#53 · 130,275 sh | 130,275 | $41.1M | 0.02% | — |
| 54 | Holocene Advisors#54 · 128,012 sh | 128,012 | $40.4M | 0.09% | +15.7% |
| 55 | NATIXIS#55 · 124,458 sh | 124,458 | $39.3M | 0.16% | +7.1% |
| 56 | Rock Springs Capital Management#56 · 115,750 sh | 115,750 | $36.5M | 1.78% | -3.9% |
| 57 | Nuveen#57 · 113,430 sh | 113,430 | $35.8M | <0.01% | +12.6% |
| 58 | Amundi#58 · 109,888 sh | 109,888 | $34.7M | <0.01% | -68.2% |
| 59 | RHUMBLINE ADVISERS#59 · 109,180 sh | 109,180 | $34.5M | 0.03% | -0.9% |
| 60 | Kryger Capital#60 · 107,207 sh | 107,207 | $33.9M | 1.93% | -30.3% |
| 61 | HSBC PLC#61 · 101,245 sh | 101,245 | $32.0M | 0.01% | -8.1% |
| 62 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#62 · 97,689 sh | 97,689 | $30.8M | <0.01% | +1.0% |
| 63 | Calamos Advisors#63 · 91,863 sh | 91,863 | $29.0M | 0.10% | +37.4% |
| 64 | MARSHALL WACE, LLP#64 · 90,520 sh | 90,520 | $28.6M | 0.02% | +149.5% |
| 65 | PRINCIPAL FINANCIAL GROUP#65 · 88,873 sh | 88,873 | $28.1M | 0.01% | +0.8% |
| 66 | CAPITOLIS LIQUID GLOBAL MARKETS#66 · 86,330 sh | 86,330 | $27.3M | 0.12% | -38.1% |
| 67 | Empyrean Capital Partners#67 · 85,000 sh | 85,000 | $26.8M | 0.89% | 0.0% |
| 68 | Capula Management Ltd#68 · 83,000 sh | 83,000 | $26.2M | 0.09% | -18.5% |
| 69 | BNP PARIBAS FINANCIAL MARKETS#69 · 82,985 sh | 82,985 | $26.2M | <0.01% | -4.0% |
| 70 | Man Group plc#70 · 80,224 sh | 80,224 | $25.3M | 0.04% | +7.4% |
| 71 | RENAISSANCE TECHNOLOGIES#71 · 79,500 sh | 79,500 | $25.1M | 0.03% | +3580.6% |
| 72 | PICTON MAHONEY ASSET MANAGEMENT#72 · 75,200 sh | 75,200 | $23.7M | 0.18% | -6.0% |
| 73 | Swiss National Bank#73 · 74,980 sh | 74,980 | $23.7M | 0.01% | +1.9% |
| 74 | C WorldWide Group Holding A/S#74 · 72,000 sh | 72,000 | $22.7M | 0.55% | 0.0% |
| 75 | CARRET ASSET MANAGEMENT#75 · 72,000 sh | 72,000 | $22.7M | 1.99% | 0.0% |
| 76 | Susquehanna Portfolio Strategies#76 · 66,945 sh | 66,945 | $21.1M | 0.34% | -4.9% |
| 77 | Quarry#77 · 65,227 sh | 65,227 | $20.6M | 1.71% | +65.8% |
| 78 | Legal & General Group Plc#78 · 64,912 sh | 64,912 | $20.5M | <0.01% | +6.1% |
| 79 | CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#79 · 64,327 sh | 64,327 | $20.3M | 0.01% | +6.5% |
| 80 | PFM Health Sciences#80 · 60,221 sh | 60,221 | $19.0M | 1.63% | -56.9% |
| 81 | HARVEST MANAGEMENT#81 · 57,487 sh | 57,487 | $18.2M | 7.13% | +219.4% |
| 82 | Sculptor Capital#82 · 57,000 sh | 57,000 | $18.0M | 0.15% | 0.0% |
| 83 | GABELLI & INVESTMENT ADVISERS#83 · 53,292 sh | 53,292 | $16.8M | 2.45% | +3.1% |
| 84 | GABELLI FUNDS#84 · 52,423 sh | 52,423 | $16.6M | 0.11% | -7.4% |
| 85 | CREDIT INDUSTRIEL ET COMMERCIAL#85 · 52,078 sh | 52,078 | $16.4M | 1.06% | +101.7% |
| 86 | FIRST ADVISORS#86 · 49,183 sh | 49,183 | $15.5M | <0.01% | -34.6% |
| 87 | BARCLAYS PLC#87 · 46,953 sh | 46,953 | $14.8M | <0.01% | +178.1% |
| 88 | PRICE T ROWE ASSOCIATES#88 · 44,624 sh | 44,624 | $14.1M | <0.01% | +6.5% |
| 89 | SG Americas Securities#89 · 41,029 sh | 41,029 | $13.0M | <0.01% | -59.8% |
| 90 | Retirement Systems of Alabama#90 · 40,680 sh | 40,680 | $12.8M | 0.04% | -15.4% |
| 91 | CSS#91 · 38,740 sh | 38,740 | $12.2M | 0.48% | +7.2% |
| 92 | STATE OF WISCONSIN INVESTMENT BOARD#92 · 37,931 sh | 37,931 | $12.0M | 0.02% | -5.9% |
| 93 | PRELUDE CAPITAL MANAGEMENT#93 · 36,381 sh | 36,381 | $11.5M | 0.84% | -24.1% |
| 94 | BOUSSARD & GAVAUDAN GESTION SAS#94 · 36,340 sh | 36,340 | $11.5M | 0.58% | — |
| 95 | VANGUARD ASSET MANAGEMENT, Ltd#95 · 36,049 sh | 36,049 | $11.4M | <0.01% | +7.3% |
| 96 | NEW YORK STATE TEACHERS RETIREMENT SYSTEM#96 · 34,695 sh | 34,695 | $11.0M | — | -6.1% |
| 97 | AMERIPRISE FINANCIAL#97 · 34,403 sh | 34,403 | $10.9M | <0.01% | -0.9% |
| 98 | Alberta Investment Management#98 · 33,120 sh | 33,120 | $10.5M | 0.06% | -58.6% |
| 99 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#99 · 33,033 sh | 33,033 | $10.4M | 0.01% | -51.3% |
| 100 | STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#100 · 32,425 sh | 32,425 | $10.2M | 0.02% | -3.1% |
Funds that sold out of PEN in Q2 2026 (69)
Held PEN at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.