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Institutional Ownership · SEC Form 13F

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.

54
Institutional holders
47,534,476
Shares held (tracked funds)

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).

FundSharesReported value% of valueQuarter
Lynx1 Capital Management LP added10,763,288$151M20.5%2026-Q1
BVF INC/IL trimmed8,650,158$122M16.5%2026-Q1
RA CAPITAL MANAGEMENT, L.P.7,676,697$108M14.6%2026-Q1
RTW INVESTMENTS, LP5,933,815$83M11.3%2026-Q1
FMR LLC5,136,045$72M9.8%2026-Q1
Avoro Capital Advisors LLC1,800,000$25M3.4%2026-Q1
TORONTO DOMINION BANK trimmed1,397,873$20M2.7%2026-Q1
Troluce Capital Advisors LLC added990,472$14M1.9%2026-Q1
MILLENNIUM MANAGEMENT LLC added937,898$13M1.8%2026-Q1
Jefferies Financial Group Inc.712,300$10M1.4%2026-Q1
5AM Venture Management, LLC572,665$8M1.1%2026-Q1
BlackRock, Inc. added455,618$6M0.9%2026-Q1
UBS Group AG added412,416$6M0.8%2026-Q1
Squadron Capital Management LLC added325,000$5M0.6%2026-Q1
Foresite Capital Management VI LLC new315,492$4M0.6%2026-Q1
BOOTHBAY FUND MANAGEMENT, LLC added282,891$4M0.5%2026-Q1
CenterBook Partners LP trimmed216,574$3M0.4%2026-Q1
HighVista Strategies LLC trimmed213,212$3M0.4%2026-Q1
Occam Crest Management LP new80,000$1M0.2%2026-Q1
MARSHALL WACE, LLP trimmed74,555$1M0.1%2026-Q1
Trexquant Investment LP added69,808$982K0.1%2026-Q1
AdvisorShares Investments LLC trimmed67,034$942K0.1%2026-Q1
CITADEL ADVISORS LLC added65,464$920K0.1%2026-Q1
XTX Topco Ltd added52,090$732K0.1%2026-Q1
GOLDMAN SACHS GROUP INC trimmed44,795$630K0.1%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added40,483$569K0.1%2026-Q1
NORTHERN TRUST CORP trimmed32,685$460K0.1%2026-Q1
DIADEMA PARTNERS LP trimmed26,836$377K0.1%2026-Q1
MORGAN STANLEY trimmed25,830$363K0.0%2026-Q1
Virtus Investment Advisers, LLC added20,920$294K0.0%2026-Q1
RENAISSANCE TECHNOLOGIES LLC trimmed20,614$290K0.0%2026-Q1
TUDOR INVESTMENT CORP ET AL new18,560$261K0.0%2026-Q1
JPMORGAN CHASE & CO trimmed18,853$246K0.0%2026-Q1
HighTower Advisors, LLC15,600$219K0.0%2026-Q1
China Universal Asset Management Co., Ltd. added13,507$190K0.0%2026-Q1
STATE STREET CORP added11,049$155K0.0%2026-Q1
Lion Point Capital, LP10,200$143K0.0%2026-Q1
Persistent Asset Partners Ltd new6,794$96K0.0%2026-Q1
OSAIC HOLDINGS, INC. trimmed5,925$83K0.0%2026-Q1
BARCLAYS PLC added4,394$62K0.0%2026-Q1
Mirae Asset Global Investments Co., Ltd. added3,235$45K0.0%2026-Q1
ROYAL BANK OF CANADA added2,590$36K0.0%2026-Q1
North Star Investment Management Corp. new2,200$31K0.0%2026-Q1
CITIGROUP INC trimmed1,733$24K0.0%2026-Q1
GF FUND MANAGEMENT CO. LTD. added1,384$19K0.0%2026-Q1
BNP PARIBAS FINANCIAL MARKETS trimmed1,310$18K0.0%2026-Q1
WELLS FARGO & COMPANY/MN1,250$18K0.0%2026-Q1
Arkos Global Advisors new1,180$17K0.0%2026-Q1
Tower Research Capital LLC (TRC) trimmed665$9K0.0%2026-Q1
Ancora Advisors LLC new284$4K0.0%2026-Q1
Farther Finance Advisors, LLC trimmed100$1K0.0%2026-Q1
SIMPLEX TRADING, LLC added83$1K0.0%2026-Q1
Cornerstone Financial Management LLC new32$4500.0%2026-Q1
SBI Securities Co., Ltd.20$2810.0%2026-Q1
Deep Track Capital, LP trimmed1,250,000$18M2.4%2025-Q3 stale
Cormorant Asset Management, LP trimmed1,300,000$17M2.2%2025-Q4 stale
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) added925,000$10M1.4%2025-Q1 stale
Verition Fund Management LLC trimmed673,735$9M1.2%2025-Q4 stale
STEMPOINT CAPITAL LP added545,275$8M1.1%2025-Q3 stale
Alyeska Investment Group, L.P.204,975$3M0.4%2025-Q4 stale
Point72 Asset Management, L.P. added76,958$1M0.1%2025-Q3 stale
JANE STREET GROUP, LLC added50,005$635K0.1%2025-Q4 stale
BIT Capital GmbH new50,000$635K0.1%2025-Q4 stale
Walleye Capital LLC added52,940$584K0.1%2025-Q1 stale
Squarepoint Ops LLC trimmed36,103$516K0.1%2025-Q3 stale
TANG CAPITAL MANAGEMENT LLC new24,030$344K0.0%2025-Q3 stale
Cubist Systematic Strategies, LLC added22,732$325K0.0%2025-Q3 stale
Man Group plc new22,060$315K0.0%2025-Q3 stale
Palumbo Wealth Management LLC added21,651$264K0.0%2025-Q2 stale
Quadrature Capital Ltd trimmed20,108$246K0.0%2025-Q2 stale
PEAK6 LLC trimmed20,000$244K0.0%2025-Q2 stale
GSA CAPITAL PARTNERS LLP new18,565$236K0.0%2025-Q4 stale
HRT FINANCIAL LP new15,936$202K0.0%2025-Q4 stale
SUSQUEHANNA INTERNATIONAL GROUP, LLP added15,877$202K0.0%2025-Q4 stale
BANK OF AMERICA CORP /DE/ added4,450$57K0.0%2025-Q4 stale
LORING WOLCOTT & COOLIDGE FIDUCIARY ADVISORS LLP/MA2,000$24K0.0%2025-Q2 stale
Tortoise Investment Management, LLC1,781$20K0.0%2025-Q1 stale
Global Retirement Partners, LLC trimmed400$5K0.0%2025-Q4 stale
Daiwa Securities Group Inc. new207$3K0.0%2025-Q4 stale
GROUP ONE TRADING LLC trimmed80$9750.0%2025-Q2 stale
CONCOURSE FINANCIAL GROUP SECURITIES, INC.00.0%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.

HoldersTotal shares

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.

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