Who owns GHRS (GHRS)
Which tracked institutional funds hold GHRS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GHRS 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
19 tracked funds added or opened GHRS while 9 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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
GHRS’s largest tracked holder by dollar value, Lynx1 Capital Management LP, sizes it at 23.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 23.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GHRS 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 54 tracked filers holding GHRS, 31 increased or opened the position and 24 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 GHRS 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 3
- TORONTO DOMINION BANK$20M
- Foresite Capital Management VI LLC$4M
- Occam Crest Management LP$1M
Full exits 5
- Cormorant Asset Management, LP$17M
- Verition Fund Management LLC$9M
- Alyeska Investment Group, L.P.$3M
- JANE STREET GROUP, LLC$635K
- BIT Capital GmbH$635K
Largest adds
- Lynx1 Capital Management LP$19M
- RA CAPITAL MANAGEMENT, L.P.$10M
- BVF INC/IL$10M
- MILLENNIUM MANAGEMENT LLC$9M
- Troluce Capital Advisors LLC$9M
- RTW INVESTMENTS, LP$8M
Largest trims
- MARSHALL WACE, LLP$2M
- CenterBook Partners LP$555K
- GOLDMAN SACHS GROUP INC$399K
- MORGAN STANLEY$290K
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 |
|---|---|---|---|---|
| Lynx1 Capital Management LP added | 10,763,288 | $151M | 20.5% | 2026-Q1 |
| BVF INC/IL trimmed | 8,650,158 | $122M | 16.5% | 2026-Q1 |
| RA CAPITAL MANAGEMENT, L.P. | 7,676,697 | $108M | 14.6% | 2026-Q1 |
| RTW INVESTMENTS, LP | 5,933,815 | $83M | 11.3% | 2026-Q1 |
| FMR LLC | 5,136,045 | $72M | 9.8% | 2026-Q1 |
| Avoro Capital Advisors LLC | 1,800,000 | $25M | 3.4% | 2026-Q1 |
| TORONTO DOMINION BANK trimmed | 1,397,873 | $20M | 2.7% | 2026-Q1 |
| Troluce Capital Advisors LLC added | 990,472 | $14M | 1.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 937,898 | $13M | 1.8% | 2026-Q1 |
| Jefferies Financial Group Inc. | 712,300 | $10M | 1.4% | 2026-Q1 |
| 5AM Venture Management, LLC | 572,665 | $8M | 1.1% | 2026-Q1 |
| BlackRock, Inc. added | 455,618 | $6M | 0.9% | 2026-Q1 |
| UBS Group AG added | 412,416 | $6M | 0.8% | 2026-Q1 |
| Squadron Capital Management LLC added | 325,000 | $5M | 0.6% | 2026-Q1 |
| Foresite Capital Management VI LLC new | 315,492 | $4M | 0.6% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 282,891 | $4M | 0.5% | 2026-Q1 |
| CenterBook Partners LP trimmed | 216,574 | $3M | 0.4% | 2026-Q1 |
| HighVista Strategies LLC trimmed | 213,212 | $3M | 0.4% | 2026-Q1 |
| Occam Crest Management LP new | 80,000 | $1M | 0.2% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 74,555 | $1M | 0.1% | 2026-Q1 |
| Trexquant Investment LP added | 69,808 | $982K | 0.1% | 2026-Q1 |
| AdvisorShares Investments LLC trimmed | 67,034 | $942K | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 65,464 | $920K | 0.1% | 2026-Q1 |
| XTX Topco Ltd added | 52,090 | $732K | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 44,795 | $630K | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 40,483 | $569K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 32,685 | $460K | 0.1% | 2026-Q1 |
| DIADEMA PARTNERS LP trimmed | 26,836 | $377K | 0.1% | 2026-Q1 |
| MORGAN STANLEY trimmed | 25,830 | $363K | 0.0% | 2026-Q1 |
| Virtus Investment Advisers, LLC added | 20,920 | $294K | 0.0% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 20,614 | $290K | 0.0% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL new | 18,560 | $261K | 0.0% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 18,853 | $246K | 0.0% | 2026-Q1 |
| HighTower Advisors, LLC | 15,600 | $219K | 0.0% | 2026-Q1 |
| China Universal Asset Management Co., Ltd. added | 13,507 | $190K | 0.0% | 2026-Q1 |
| STATE STREET CORP added | 11,049 | $155K | 0.0% | 2026-Q1 |
| Lion Point Capital, LP | 10,200 | $143K | 0.0% | 2026-Q1 |
| Persistent Asset Partners Ltd new | 6,794 | $96K | 0.0% | 2026-Q1 |
| OSAIC HOLDINGS, INC. trimmed | 5,925 | $83K | 0.0% | 2026-Q1 |
| BARCLAYS PLC added | 4,394 | $62K | 0.0% | 2026-Q1 |
| Mirae Asset Global Investments Co., Ltd. added | 3,235 | $45K | 0.0% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 2,590 | $36K | 0.0% | 2026-Q1 |
| North Star Investment Management Corp. new | 2,200 | $31K | 0.0% | 2026-Q1 |
| CITIGROUP INC trimmed | 1,733 | $24K | 0.0% | 2026-Q1 |
| GF FUND MANAGEMENT CO. LTD. added | 1,384 | $19K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 1,310 | $18K | 0.0% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN | 1,250 | $18K | 0.0% | 2026-Q1 |
| Arkos Global Advisors new | 1,180 | $17K | 0.0% | 2026-Q1 |
| Tower Research Capital LLC (TRC) trimmed | 665 | $9K | 0.0% | 2026-Q1 |
| Ancora Advisors LLC new | 284 | $4K | 0.0% | 2026-Q1 |
| Farther Finance Advisors, LLC trimmed | 100 | $1K | 0.0% | 2026-Q1 |
| SIMPLEX TRADING, LLC added | 83 | $1K | 0.0% | 2026-Q1 |
| Cornerstone Financial Management LLC new | 32 | $450 | 0.0% | 2026-Q1 |
| SBI Securities Co., Ltd. | 20 | $281 | 0.0% | 2026-Q1 |
| Deep Track Capital, LP trimmed | 1,250,000 | $18M | 2.4% | 2025-Q3 stale |
| Cormorant Asset Management, LP trimmed | 1,300,000 | $17M | 2.2% | 2025-Q4 stale |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) added | 925,000 | $10M | 1.4% | 2025-Q1 stale |
| Verition Fund Management LLC trimmed | 673,735 | $9M | 1.2% | 2025-Q4 stale |
| STEMPOINT CAPITAL LP added | 545,275 | $8M | 1.1% | 2025-Q3 stale |
| Alyeska Investment Group, L.P. | 204,975 | $3M | 0.4% | 2025-Q4 stale |
| Point72 Asset Management, L.P. added | 76,958 | $1M | 0.1% | 2025-Q3 stale |
| JANE STREET GROUP, LLC added | 50,005 | $635K | 0.1% | 2025-Q4 stale |
| BIT Capital GmbH new | 50,000 | $635K | 0.1% | 2025-Q4 stale |
| Walleye Capital LLC added | 52,940 | $584K | 0.1% | 2025-Q1 stale |
| Squarepoint Ops LLC trimmed | 36,103 | $516K | 0.1% | 2025-Q3 stale |
| TANG CAPITAL MANAGEMENT LLC new | 24,030 | $344K | 0.0% | 2025-Q3 stale |
| Cubist Systematic Strategies, LLC added | 22,732 | $325K | 0.0% | 2025-Q3 stale |
| Man Group plc new | 22,060 | $315K | 0.0% | 2025-Q3 stale |
| Palumbo Wealth Management LLC added | 21,651 | $264K | 0.0% | 2025-Q2 stale |
| Quadrature Capital Ltd trimmed | 20,108 | $246K | 0.0% | 2025-Q2 stale |
| PEAK6 LLC trimmed | 20,000 | $244K | 0.0% | 2025-Q2 stale |
| GSA CAPITAL PARTNERS LLP new | 18,565 | $236K | 0.0% | 2025-Q4 stale |
| HRT FINANCIAL LP new | 15,936 | $202K | 0.0% | 2025-Q4 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 15,877 | $202K | 0.0% | 2025-Q4 stale |
| BANK OF AMERICA CORP /DE/ added | 4,450 | $57K | 0.0% | 2025-Q4 stale |
| LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA | 2,000 | $24K | 0.0% | 2025-Q2 stale |
| Tortoise Investment Management, LLC | 1,781 | $20K | 0.0% | 2025-Q1 stale |
| Global Retirement Partners, LLC trimmed | 400 | $5K | 0.0% | 2025-Q4 stale |
| Daiwa Securities Group Inc. new | 207 | $3K | 0.0% | 2025-Q4 stale |
| GROUP ONE TRADING LLC trimmed | 80 | $975 | 0.0% | 2025-Q2 stale |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | — | 0.0% | 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.