HBIO Institutional Ownership
Who owns Harvard Bioscience Inc and what the big funds did with it last quarter, from every SEC 13F filing. 37 funds reported holding HBIO at Jun 30, 2026, together owning 36.9% of the company.
- ▼9 buying vs 17 selling
- ▲Held by funds +2.1 pts
- ●Funds holding +0
- ▼Superinvestors: 1 added, 2 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 37 | 37 | 0.0% |
| In funds' top 10 | 0 | 0 | – |
| 13F shares | 1.7M | 1.6M | +5.9% |
| Held by funds | 36.9% | 34.8% | +2.1 pts |
| New positions | 4 | 30 | −86.7% |
| Increased | 5 | 0 | – |
| Reduced | 15 | 4 | +275.0% |
| Sold out | 2 | 59 | −96.6% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in HBIO
All superinvestors →
Who owns HBIO
share of fund held shares- Index and passive funds19.2%
- Active managers and hedge funds77.5%
- Banks and brokers3.2%
- Pensions, insurers and other0.0%
The top 10 holders own 85.3% of all HBIO shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
3 funds changed their position- Weber Capital Management LLC /advTrimmed−11K sh
- Williams & Novak Wealth Management, LLCTrimmed−4,394 sh
- Pension & Wealth Management Advisors, Inc.Sold out−225 sh
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Weber Capital Management LLC /adv | 6.83% | 311K | $1.9M | −9,176 |
| 2 | Meros Investment Management, LP | 4.02% | 183K | $1.1M | +64K |
| 3 | Acadian Asset Management LLC | 3.95% | 180K | $1.1M | 0 |
| 4 | Vanguard Capital Management LLC | 3.73% | 170K | $1M | +6,312 |
| 5 | Nano Cap New Millennium Growth Fund L P | 3.14% | 143K | $880K | +26K |
| 6 | Corsair Capital Management, L.P. | 2.70% | 123K | $755K | −2,000 |
| 7 | Two Sigma Investments, LP | 2.52% | 115K | $704K | +428 |
| 8 | Renaissance Technologies LLC | 2.18% | 99K | $611K | −2,100 |
| 9 | BlackRock, Inc. | 1.36% | 62K | $380K | −392 |
| 10 | Geode Capital Management, LLC | 1.04% | 48K | $293K | −12K |
- Meros Investment Management, LP+64K sh+$396K
- Mink Brook Asset Management LLC+33K sh+$205K
- Nano Cap New Millennium Growth Fund L P+26K sh+$157K
- Citadel Advisors LLC+13K sh+$81K
- Goldman Sachs Group Inc+11K sh+$66K
- UBS Group AG+9,176 sh+$56K
- Vanguard Capital Management LLC+6,312 sh+$39K
- Two Sigma Investments, LP+428 sh+$3K
- Millennium Management LLC−14K sh−$84K
- Geode Capital Management, LLC−12K sh−$74K
- Jane Street Group, LLC−9,848 sh−$61K
- Weber Capital Management LLC /adv−9,176 sh−$56K
- Williams & Novak Wealth Management, LLC−6,103 sh−$38K
- Citigroup Inc−6,273 sh−$31K
- Jpmorgan Chase & Co−4,268 sh−$26K
- Renaissance Technologies LLC−2,100 sh−$13K
HBIO institutional ownership FAQ
Who owns the most HBIO stock?
In Q2 2026 13F filings the largest holder of HBIO was Weber Capital Management LLC /adv, followed by Meros Investment Management, LP and Acadian Asset Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of HBIO is owned by institutions?
Funds that file 13F reports held 36.9% of HBIO's shares at Jun 30, 2026, compared with 34.8% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying HBIO?
In Q2 2026, 9 funds bought HBIO (4 of them new positions) and 17 sold (2 sold out completely). Among well known investors, 1 added and 2 cut. Our fund sentiment for HBIO is neutral.
What is HBIO's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this HBIO ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.