Who owns PCVX (PCVX)
Which tracked institutional funds hold PCVX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PCVX company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on PCVX is one-sided between 2025-Q4 and 2026-Q1: 158 added or opened and 33 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
PCVX’s largest tracked holder by dollar value, JANUS HENDERSON GROUP PLC, sizes it at 0.5% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.4pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in PCVX divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 336 tracked filers holding PCVX, 197 increased or opened the position and 113 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in PCVX between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 36
- VANGUARD PORTFOLIO MANAGEMENT LLC$365M
- VANGUARD CAPITAL MANAGEMENT LLC$364M
- Bellevue Group AG$69M
- VANGUARD FIDUCIARY TRUST CO$49M
- BAUPOST GROUP LLC/MA$46M
- Jones Hill Capital LP$37M
Full exits 9
- VANGUARD GROUP INC$554M
- EcoR1 Capital, LLC$21M
- TANG CAPITAL MANAGEMENT LLC$13M
- Jump Financial, LLC$4M
- TUDOR INVESTMENT CORP ET AL$3M
- HARBOR CAPITAL ADVISORS, INC.$1M
Largest adds
- T. Rowe Price Investment Management, Inc.$396M
- JANUS HENDERSON GROUP PLC$343M
- FMR LLC$320M
- RA CAPITAL MANAGEMENT, L.P.$172M
- Paradigm Biocapital Advisors LP$91M
- FARALLON CAPITAL MANAGEMENT LLC$73M
Largest trims
- ADAGE CAPITAL PARTNERS GP, L.L.C.$59M
- NORGES BANK$23M
- Logos Global Management LP$13M
- BARCLAYS PLC$12M
- AMERIPRISE FINANCIAL INC$8M
- Soleus Capital Management, L.P.$6M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC added | 16,575,875 | $960M | 9.7% | 2026-Q1 |
| FMR LLC added | 16,492,861 | $958M | 9.7% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 12,126,017 | $705M | 7.1% | 2026-Q1 |
| RA CAPITAL MANAGEMENT, L.P. added | 11,474,599 | $667M | 6.8% | 2026-Q1 |
| BlackRock, Inc. trimmed | 9,313,905 | $541M | 5.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 6,279,545 | $365M | 3.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 6,266,701 | $364M | 3.7% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 5,603,805 | $326M | 3.3% | 2026-Q1 |
| Paradigm Biocapital Advisors LP added | 4,793,020 | $279M | 2.8% | 2026-Q1 |
| STATE STREET CORP trimmed | 4,440,519 | $258M | 2.6% | 2026-Q1 |
| Deep Track Capital, LP added | 4,300,000 | $250M | 2.5% | 2026-Q1 |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 3,646,138 | $212M | 2.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 3,201,283 | $186M | 1.9% | 2026-Q1 |
| Kynam Capital Management, LP | 2,922,335 | $170M | 1.7% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 2,865,318 | $167M | 1.7% | 2026-Q1 |
| Caligan Partners LP added | 2,060,719 | $120M | 1.2% | 2026-Q1 |
| JENNISON ASSOCIATES LLC added | 1,698,011 | $99M | 1.0% | 2026-Q1 |
| Polar Capital Holdings Plc trimmed | 1,425,788 | $83M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,403,948 | $82M | 0.8% | 2026-Q1 |
| MAVERICK CAPITAL LTD added | 1,377,738 | $80M | 0.8% | 2026-Q1 |
| EVENTIDE ASSET MANAGEMENT, LLC added | 1,374,292 | $80M | 0.8% | 2026-Q1 |
| Pivotal bioVenture Partners Investment Advisor LLC | 1,372,425 | $80M | 0.8% | 2026-Q1 |
| UBS Group AG added | 1,337,390 | $78M | 0.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,275,036 | $74M | 0.8% | 2026-Q1 |
| FARALLON CAPITAL MANAGEMENT LLC added | 1,261,000 | $73M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,216,843 | $71M | 0.7% | 2026-Q1 |
| Bellevue Group AG added | 1,190,697 | $69M | 0.7% | 2026-Q1 |
| Assenagon Asset Management S.A. added | 1,164,813 | $68M | 0.7% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,144,469 | $67M | 0.7% | 2026-Q1 |
| Aberdeen Group plc trimmed | 978,969 | $57M | 0.6% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 976,429 | $57M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,008,314 | $55M | 0.6% | 2026-Q1 |
| Eversept Partners, LP trimmed | 924,193 | $54M | 0.5% | 2026-Q1 |
| Capital Research Global Investors added | 912,688 | $53M | 0.5% | 2026-Q1 |
| NOVO HOLDINGS A/S trimmed | 860,000 | $50M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 842,273 | $49M | 0.5% | 2026-Q1 |
| Saturn V Capital Management LP added | 824,532 | $48M | 0.5% | 2026-Q1 |
| BAUPOST GROUP LLC/MA new | 800,000 | $46M | 0.5% | 2026-Q1 |
| MORGAN STANLEY trimmed | 735,907 | $43M | 0.4% | 2026-Q1 |
| Pictet Asset Management Holding SA trimmed | 700,311 | $41M | 0.4% | 2026-Q1 |
| Trails Edge Capital Partners, LP trimmed | 662,470 | $38M | 0.4% | 2026-Q1 |
| Jones Hill Capital LP new | 644,831 | $37M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 620,401 | $36M | 0.4% | 2026-Q1 |
| NORGES BANK trimmed | 899,842 | $34M | 0.3% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 566,828 | $33M | 0.3% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 522,019 | $30M | 0.3% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 514,577 | $30M | 0.3% | 2026-Q1 |
| BROWN ADVISORY INC trimmed | 511,701 | $30M | 0.3% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 501,857 | $29M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp added | 474,526 | $28M | 0.3% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 473,363 | $28M | 0.3% | 2026-Q1 |
| Ensign Peak Advisors, Inc trimmed | 445,903 | $26M | 0.3% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 435,581 | $25M | 0.3% | 2026-Q1 |
| Ikarian Capital, LLC added | 428,682 | $25M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 410,605 | $24M | 0.2% | 2026-Q1 |
| Soleus Capital Management, L.P. trimmed | 385,472 | $22M | 0.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 375,772 | $22M | 0.2% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 363,984 | $21M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 355,854 | $21M | 0.2% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 350,000 | $20M | 0.2% | 2026-Q1 |
| Boxer Capital Management, LLC new | 325,000 | $19M | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 320,789 | $19M | 0.2% | 2026-Q1 |
| Elmind Capital, LP added | 316,500 | $18M | 0.2% | 2026-Q1 |
| Candriam S.C.A. added | 315,022 | $18M | 0.2% | 2026-Q1 |
| TD Asset Management Inc trimmed | 312,762 | $18M | 0.2% | 2026-Q1 |
| Logos Global Management LP trimmed | 300,000 | $17M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 299,693 | $17M | 0.2% | 2026-Q1 |
| Artisan Partners Limited Partnership trimmed | 297,432 | $17M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 293,695 | $17M | 0.2% | 2026-Q1 |
| Rosalind Advisors, Inc. new | 290,000 | $17M | 0.2% | 2026-Q1 |
| Woodline Partners LP | 274,740 | $16M | 0.2% | 2026-Q1 |
| FRED ALGER MANAGEMENT, LLC added | 270,115 | $16M | 0.2% | 2026-Q1 |
| ADAR1 Capital Management, LLC trimmed | 259,137 | $15M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 252,877 | $15M | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 260,395 | $15M | 0.1% | 2026-Q1 |
| Spruce Street Capital LP trimmed | 245,709 | $14M | 0.1% | 2026-Q1 |
| University of Wisconsin Foundation trimmed | 239,749 | $14M | 0.1% | 2026-Q1 |
| Nantahala Capital Management, LLC new | 238,746 | $14M | 0.1% | 2026-Q1 |
| Swiss National Bank added | 233,100 | $14M | 0.1% | 2026-Q1 |
| Freestone Grove Partners LP added | 224,731 | $13M | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 224,518 | $13M | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 197,600 | $11M | 0.1% | 2026-Q1 |
| C WorldWide Group Holding A/S | 195,000 | $11M | 0.1% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 187,183 | $11M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 158,841 | $9M | 0.1% | 2026-Q1 |
| California Public Employees Retirement System added | 151,555 | $9M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 12,014,815 | $554M | 5.6% | 2025-Q4 stale |
| COMMODORE CAPITAL LP added | 1,650,000 | $62M | 0.6% | 2025-Q1 stale |
| Avoro Capital Advisors LLC trimmed | 1,000,000 | $38M | 0.4% | 2025-Q1 stale |
| Hood River Capital Management LLC added | 751,614 | $28M | 0.3% | 2025-Q1 stale |
| PERCEPTIVE ADVISORS LLC trimmed | 706,567 | $27M | 0.3% | 2025-Q1 stale |
| BAKER BROS. ADVISORS LP | 640,885 | $23M | 0.2% | 2025-Q3 stale |
| EcoR1 Capital, LLC added | 450,000 | $21M | 0.2% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 519,734 | $19M | 0.2% | 2025-Q3 stale |
| Frazier Life Sciences Management, L.P. | 474,405 | $17M | 0.2% | 2025-Q3 stale |
| TANG CAPITAL MANAGEMENT LLC trimmed | 275,000 | $13M | 0.1% | 2025-Q4 stale |
| Fiera Capital Corp trimmed | 345,852 | $12M | 0.1% | 2025-Q3 stale |
| TimesSquare Capital Management, LLC trimmed | 281,863 | $11M | 0.1% | 2025-Q1 stale |
| First Turn Management, LLC | 276,905 | $10M | 0.1% | 2025-Q1 stale |
| Siren, L.L.C. | 295,543 | $10M | 0.1% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.