Who owns HROW (HROW)
Which tracked institutional funds hold HROW, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See HROW 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 HROW is one-sided between 2025-Q4 and 2026-Q1: 25 added or opened and 84 trimmed or exited — on balance reducing.
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
HROW’s largest tracked holder by dollar value, Opaleye Management Inc., sizes it at 13.2% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 13.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in HROW 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 218 tracked filers holding HROW, 112 increased or opened the position and 116 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 HROW 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 12
- VANGUARD CAPITAL MANAGEMENT LLC$49M
- VANGUARD PORTFOLIO MANAGEMENT LLC$10M
- VANGUARD FIDUCIARY TRUST CO$8M
- PRINCIPAL FINANCIAL GROUP INC$2M
- Brookstone Capital Management$1M
- Gotham Asset Management, LLC$924K
Full exits 11
- VANGUARD GROUP INC$81M
- JANE STREET GROUP, LLC$12M
- Militia Capital Partners, LP$2M
- HRT FINANCIAL LP$2M
- Verition Fund Management LLC$1M
- Ellsworth Advisors, LLC$917K
Largest adds
- MARSHALL WACE, LLP$13M
- Ikarian Capital, LLC$10M
- Patient Square Capital LP$5M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$4M
- BOOTHBAY FUND MANAGEMENT, LLC$3M
- DIMENSIONAL FUND ADVISORS LP$2M
Largest trims
- Opaleye Management Inc.$91M
- BlackRock, Inc.$36M
- Private Capital Management, LLC$35M
- ROYCE & ASSOCIATES LP$24M
- Diametric Capital, LP$10M
- BRAIDWELL LP$9M
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 |
|---|---|---|---|---|
| Opaleye Management Inc. trimmed | 2,832,230 | $100M | 11.5% | 2026-Q1 |
| BlackRock, Inc. trimmed | 2,552,759 | $90M | 10.4% | 2026-Q1 |
| Private Capital Management, LLC trimmed | 1,562,000 | $55M | 6.4% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,403,056 | $49M | 5.7% | 2026-Q1 |
| Luxor Capital Group, LP added | 1,119,400 | $39M | 4.6% | 2026-Q1 |
| STATE STREET CORP added | 855,047 | $30M | 3.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 852,034 | $30M | 3.5% | 2026-Q1 |
| MARSHALL WACE, LLP added | 644,918 | $23M | 2.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 579,520 | $20M | 2.4% | 2026-Q1 |
| Ikarian Capital, LLC added | 543,047 | $19M | 2.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 457,782 | $16M | 1.9% | 2026-Q1 |
| Penn Capital Management Company, LLC added | 407,896 | $14M | 1.7% | 2026-Q1 |
| RICE HALL JAMES & ASSOCIATES, LLC added | 368,177 | $13M | 1.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 341,707 | $12M | 1.4% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 296,865 | $10M | 1.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 288,875 | $10M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 270,536 | $10M | 1.1% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 268,515 | $9M | 1.1% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 234,660 | $8M | 1.0% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 227,621 | $8M | 0.9% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 221,258 | $8M | 0.9% | 2026-Q1 |
| Crawford Fund Management, LLC added | 193,300 | $7M | 0.8% | 2026-Q1 |
| Westside Investment Management, Inc. added | 185,926 | $7M | 0.8% | 2026-Q1 |
| UBS Group AG trimmed | 175,324 | $6M | 0.7% | 2026-Q1 |
| Blackhawk Capital Partners, LLC added | 172,332 | $6M | 0.7% | 2026-Q1 |
| 12th Street Asset Management Company, LLC added | 168,731 | $6M | 0.7% | 2026-Q1 |
| Patient Square Capital LP added | 165,209 | $6M | 0.7% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 158,110 | $6M | 0.6% | 2026-Q1 |
| BRAIDWELL LP trimmed | 156,419 | $6M | 0.6% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 154,096 | $5M | 0.6% | 2026-Q1 |
| FirstWave Capital Management LLC added | 143,923 | $5M | 0.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 142,551 | $5M | 0.6% | 2026-Q1 |
| Diametric Capital, LP trimmed | 110,698 | $4M | 0.5% | 2026-Q1 |
| WOODMONT INVESTMENT COUNSEL LLC added | 110,559 | $4M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 94,578 | $3M | 0.4% | 2026-Q1 |
| GROUP ONE TRADING LLC trimmed | 92,009 | $3M | 0.4% | 2026-Q1 |
| Steward Partners Investment Advisory, LLC added | 90,629 | $3M | 0.4% | 2026-Q1 |
| Lumbard & Kellner, LLC added | 88,559 | $3M | 0.4% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC added | 86,097 | $3M | 0.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 84,579 | $3M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 79,989 | $3M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 78,682 | $3M | 0.3% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC added | 74,256 | $3M | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 65,504 | $2M | 0.3% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 64,635 | $2M | 0.3% | 2026-Q1 |
| Swiss National Bank | 62,100 | $2M | 0.3% | 2026-Q1 |
| Jefferson Bridge Capital, LLC added | 57,168 | $2M | 0.2% | 2026-Q1 |
| CAPTRUST FINANCIAL ADVISORS trimmed | 56,788 | $2M | 0.2% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 56,487 | $2M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 51,869 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 50,967 | $2M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 50,119 | $2M | 0.2% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 47,535 | $2M | 0.2% | 2026-Q1 |
| EQUITABLE TRUST CO trimmed | 41,763 | $1M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 29,637 | $1M | 0.2% | 2026-Q1 |
| BARD ASSOCIATES INC trimmed | 40,397 | $1M | 0.2% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 39,713 | $1M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 39,019 | $1M | 0.2% | 2026-Q1 |
| LJI Wealth Management, LLC added | 38,700 | $1M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 38,032 | $1M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 37,190 | $1M | 0.2% | 2026-Q1 |
| D.A. DAVIDSON & CO. trimmed | 36,536 | $1M | 0.1% | 2026-Q1 |
| OSAIC HOLDINGS, INC. added | 35,058 | $1M | 0.1% | 2026-Q1 |
| STANSBERRY ASSET MANAGEMENT, LLC trimmed | 34,748 | $1M | 0.1% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 36,393 | $1M | 0.1% | 2026-Q1 |
| BLAIR WILLIAM & CO/IL added | 32,760 | $1M | 0.1% | 2026-Q1 |
| LPL Financial LLC added | 31,560 | $1M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 29,665 | $1M | 0.1% | 2026-Q1 |
| Brookstone Capital Management trimmed | 28,884 | $1M | 0.1% | 2026-Q1 |
| KORNITZER CAPITAL MANAGEMENT INC /KS trimmed | 27,202 | $959K | 0.1% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC | 26,963 | $951K | 0.1% | 2026-Q1 |
| Gotham Asset Management, LLC new | 26,219 | $924K | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 24,530 | $865K | 0.1% | 2026-Q1 |
| Birchview Capital, LP trimmed | 24,000 | $846K | 0.1% | 2026-Q1 |
| Militia Capital Management LLC new | 23,519 | $829K | 0.1% | 2026-Q1 |
| Creative Planning trimmed | 22,273 | $785K | 0.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 21,954 | $774K | 0.1% | 2026-Q1 |
| IMC-Chicago, LLC trimmed | 21,789 | $768K | 0.1% | 2026-Q1 |
| Focus Partners Wealth added | 21,430 | $756K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 1,655,175 | $81M | 9.4% | 2025-Q4 stale |
| JANE STREET GROUP, LLC added | 239,265 | $12M | 1.4% | 2025-Q4 stale |
| First Turn Management, LLC trimmed | 160,234 | $8M | 0.9% | 2025-Q3 stale |
| Divisadero Street Capital Management, LP trimmed | 118,670 | $6M | 0.7% | 2025-Q3 stale |
| Advantage Alpha Capital Partners LP new | 111,553 | $5M | 0.6% | 2025-Q3 stale |
| Nicholas Investment Partners, LP added | 95,834 | $5M | 0.5% | 2025-Q3 stale |
| Soleus Capital Management, L.P. new | 85,498 | $4M | 0.5% | 2025-Q3 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 105,892 | $3M | 0.3% | 2025-Q1 stale |
| STEMPOINT CAPITAL LP new | 57,619 | $3M | 0.3% | 2025-Q3 stale |
| Militia Capital Partners, LP new | 47,000 | $2M | 0.3% | 2025-Q4 stale |
| HRT FINANCIAL LP trimmed | 43,681 | $2M | 0.2% | 2025-Q4 stale |
| BBR PARTNERS, LLC | 62,000 | $2M | 0.2% | 2025-Q1 stale |
| Connor, Clark & Lunn Investment Management Ltd. added | 50,316 | $2M | 0.2% | 2025-Q2 stale |
| Calamos Advisors LLC added | 22,575 | $1M | 0.1% | 2025-Q3 stale |
| Engineers Gate Manager LP added | 35,565 | $1M | 0.1% | 2025-Q2 stale |
| Verition Fund Management LLC added | 22,144 | $1M | 0.1% | 2025-Q4 stale |
| TWO SIGMA INVESTMENTS, LP trimmed | 32,475 | $992K | 0.1% | 2025-Q2 stale |
| Qube Research & Technologies Ltd trimmed | 19,561 | $942K | 0.1% | 2025-Q3 stale |
| Ellsworth Advisors, LLC new | 18,909 | $917K | 0.1% | 2025-Q4 stale |
| FineMark National Bank & Trust trimmed | 17,430 | $854K | 0.1% | 2025-Q4 stale |
| Sonora Investment Management Group, LLC added | 17,148 | $826K | 0.1% | 2025-Q3 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.