Who owns BioCryst Pharmaceuticals (BCRX)
Which tracked institutional funds hold BCRX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BCRX company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
97 tracked funds added or opened BCRX while 53 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
BCRX’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes BCRX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in BCRX 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 2026-Q1 and 2026-Q2, across 298 tracked filers holding BCRX, 178 increased or opened the position and 137 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 BCRX between the 2026-Q1 and 2026-Q2 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 17
- Jupiter Topco LLC$95M
- MOORE CAPITAL MANAGEMENT, LP$8M
- NAN FUNG TRINITY (HK) LTD$4M
- WEDGE CAPITAL MANAGEMENT L L P/NC$4M
- Aquatic Capital Management LLC$4M
- NFJ INVESTMENT GROUP, LLC$3M
Full exits 20
- JANUS HENDERSON GROUP PLC$85M
- Royalty Pharma Sub-Manager, LLC$37M
- GW&K Investment Management, LLC$31M
- RFG Advisory, LLC$27M
- JACOBS LEVY EQUITY MANAGEMENT, INC$10M
- Hillsdale Investment Management Inc.$6M
Largest adds
- STATE STREET CORP$36M
- PERCEPTIVE ADVISORS LLC$32M
- MILLENNIUM MANAGEMENT LLC$32M
- BlackRock, Inc.$23M
- GOLDMAN SACHS GROUP INC$22M
- JANE STREET GROUP, LLC$22M
Largest trims
- Kynam Capital Management, LP$29M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$15M
- Eversept Partners, LP$10M
- JPMORGAN CHASE & CO$9M
- Schonfeld Strategic Advisors LLC$6M
- PDT Partners, LLC$5M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 23,893,036 | $239M | 9.6% | 2026-Q2 |
| RA CAPITAL MANAGEMENT, L.P. | 15,827,186 | $158M | 6.3% | 2026-Q2 |
| STATE STREET CORP added | 15,191,098 | $152M | 6.1% | 2026-Q2 |
| DEERFIELD MANAGEMENT COMPANY, L.P. added | 15,096,403 | $151M | 6.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 11,364,236 | $114M | 4.6% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 11,139,158 | $111M | 4.5% | 2026-Q2 |
| TCG Crossover Management, LLC | 11,020,968 | $110M | 4.4% | 2026-Q2 |
| PERCEPTIVE ADVISORS LLC added | 10,308,888 | $103M | 4.1% | 2026-Q2 |
| Jupiter Topco LLC new | 9,540,764 | $95M | 3.8% | 2026-Q2 |
| Vestal Point Capital, LP added | 8,300,000 | $83M | 3.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 6,775,349 | $68M | 2.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 6,248,046 | $62M | 2.5% | 2026-Q2 |
| Aberdeen Group plc added | 5,310,871 | $53M | 2.1% | 2026-Q2 |
| UBS Group AG added | 5,078,280 | $51M | 2.0% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 4,801,284 | $48M | 1.9% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 4,481,874 | $45M | 1.8% | 2026-Q2 |
| Frazier Life Sciences Management, L.P. | 4,009,240 | $40M | 1.6% | 2026-Q2 |
| Nuveen, LLC added | 4,007,237 | $40M | 1.6% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 3,394,729 | $34M | 1.4% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 2,762,683 | $28M | 1.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 2,718,781 | $27M | 1.1% | 2026-Q2 |
| Fisher Asset Management, LLC trimmed | 2,604,027 | $26M | 1.0% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 2,530,290 | $25M | 1.0% | 2026-Q2 |
| Kynam Capital Management, LP trimmed | 2,522,660 | $25M | 1.0% | 2026-Q2 |
| Candriam S.C.A. added | 2,514,949 | $25M | 1.0% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,353,291 | $24M | 0.9% | 2026-Q2 |
| RICE HALL JAMES & ASSOCIATES, LLC added | 2,332,043 | $23M | 0.9% | 2026-Q2 |
| NORTHERN TRUST CORP added | 2,255,731 | $23M | 0.9% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 2,214,302 | $22M | 0.9% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,999,684 | $20M | 0.8% | 2026-Q2 |
| Nantahala Capital Management, LLC trimmed | 1,901,160 | $19M | 0.8% | 2026-Q2 |
| Eversept Partners, LP trimmed | 1,865,653 | $19M | 0.7% | 2026-Q2 |
| ORBIMED ADVISORS LLC added | 1,852,000 | $19M | 0.7% | 2026-Q2 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 1,844,912 | $18M | 0.7% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 1,826,234 | $18M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 1,759,573 | $18M | 0.7% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,759,160 | $18M | 0.7% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD added | 1,642,874 | $16M | 0.7% | 2026-Q2 |
| IMC-Chicago, LLC added | 1,634,336 | $16M | 0.7% | 2026-Q2 |
| Parkman Healthcare Partners LLC trimmed | 1,624,279 | $16M | 0.7% | 2026-Q2 |
| Legal & General Group Plc added | 1,455,514 | $15M | 0.6% | 2026-Q2 |
| OP Asset Management Ltd added | 1,340,990 | $13M | 0.5% | 2026-Q2 |
| Pictet Asset Management Holding SA added | 1,249,771 | $12M | 0.5% | 2026-Q2 |
| Invesco Ltd. added | 1,233,783 | $12M | 0.5% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 1,195,651 | $12M | 0.5% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,174,052 | $12M | 0.5% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 1,120,469 | $11M | 0.4% | 2026-Q2 |
| MOORE CAPITAL MANAGEMENT, LP new | 848,336 | $8M | 0.3% | 2026-Q2 |
| FMR LLC added | 808,903 | $8M | 0.3% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 744,917 | $7M | 0.3% | 2026-Q2 |
| Man Group plc trimmed | 732,867 | $7M | 0.3% | 2026-Q2 |
| Rosalind Advisors, Inc. trimmed | 721,504 | $7M | 0.3% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC trimmed | 710,816 | $7M | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 680,481 | $7M | 0.3% | 2026-Q2 |
| Jump Financial, LLC added | 569,956 | $6M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 563,361 | $6M | 0.2% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 538,813 | $5M | 0.2% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 525,449 | $5M | 0.2% | 2026-Q2 |
| Elmind Capital, LP trimmed | 520,000 | $5M | 0.2% | 2026-Q2 |
| Bridgewater Associates, LP trimmed | 491,057 | $5M | 0.2% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 480,364 | $5M | 0.2% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 468,785 | $5M | 0.2% | 2026-Q2 |
| NAN FUNG TRINITY (HK) LTD new | 450,000 | $4M | 0.2% | 2026-Q2 |
| SPHERA FUNDS MANAGEMENT LTD. trimmed | 422,051 | $4M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 415,268 | $4M | 0.2% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 408,529 | $4M | 0.2% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 404,704 | $4M | 0.2% | 2026-Q2 |
| DAFNA Capital Management LLC trimmed | 400,248 | $4M | 0.2% | 2026-Q2 |
| Hudson Bay Capital Management LP trimmed | 400,000 | $4M | 0.2% | 2026-Q2 |
| WEDGE CAPITAL MANAGEMENT L L P/NC new | 380,801 | $4M | 0.2% | 2026-Q2 |
| DOLIVER ADVISORS, LP | 374,328 | $4M | 0.2% | 2026-Q2 |
| Aquatic Capital Management LLC added | 362,895 | $4M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 360,189 | $4M | 0.1% | 2026-Q2 |
| Assenagon Asset Management S.A. added | 353,044 | $4M | 0.1% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP added | 347,299 | $3M | 0.1% | 2026-Q2 |
| Phocas Financial Corp. added | 340,541 | $3M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 327,909 | $3M | 0.1% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 320,566 | $3M | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC added | 317,960 | $3M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 305,897 | $3M | 0.1% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 293,925 | $3M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 279,839 | $3M | 0.1% | 2026-Q2 |
| NFJ INVESTMENT GROUP, LLC new | 278,792 | $3M | 0.1% | 2026-Q2 |
| Rafferty Asset Management, LLC trimmed | 265,618 | $3M | 0.1% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 260,917 | $3M | 0.1% | 2026-Q2 |
| WINTON GROUP Ltd added | 255,600 | $3M | 0.1% | 2026-Q2 |
| MARSHALL WACE, LLP added | 252,764 | $3M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 251,230 | $3M | 0.1% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P added | 242,508 | $2M | 0.1% | 2026-Q2 |
| IEQ CAPITAL, LLC added | 227,421 | $2M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN trimmed | 222,894 | $2M | 0.1% | 2026-Q2 |
| HUSSMAN STRATEGIC ADVISORS, INC. trimmed | 210,000 | $2M | 0.1% | 2026-Q2 |
| PFM Health Sciences, LP new | 207,357 | $2M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd | 196,280 | $2M | 0.1% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 195,128 | $2M | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP trimmed | 175,002 | $2M | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC added | 174,714 | $2M | 0.1% | 2026-Q2 |
| QTR Family Wealth, LLC added | 161,082 | $2M | 0.1% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 156,421 | $2M | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 155,544 | $2M | 0.1% | 2026-Q2 |
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.