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Harvard Bioscience

68 hedge funds and large institutions have $8.39M invested in Harvard Bioscience in 2025 Q2 according to their latest regulatory filings, with 14 funds opening new positions, 19 increasing their positions, 27 reducing their positions, and 37 closing their positions.

New
Increased
Maintained
Reduced
Closed

510% more call options, than puts

Call options by funds: $61K | Put options by funds: $10K

1.54% less ownership

Funds ownership: 5.82%4.28% (-1.5%)

25% less funds holding

Funds holding: 9168 (-23)

30% less repeat investments, than reductions

Existing positions increased: 19 | Existing positions reduced: 27

42% less capital invested

Capital invested by funds: $14.5M → $8.39M (-$6.12M)

62% less first-time investments, than exits

New positions opened: 14 | Existing positions closed: 37

100% less funds holding in top 10

Funds holding in top 10: 10 (-1)

Holders
68
Holders Change
-23
Holders Change %
-25.27%
% of All Funds
0.9%
Holding in Top 10
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-100%
% of All Funds
New
14
Increased
19
Reduced
27
Closed
37
Calls
$61K
Puts
$10K
Net Calls
+$51K
Net Calls Change
+$50K
Name Holding Trade Value Shares
Change
Change in
Stake
AE
1
AMH Equity
New York
$1.56M +$50.7K +12,134 +4%
HP
2
Harvey Partners
New York
$950K -$19.4K -4,640 -2%
Vanguard Group
3
Vanguard Group
Pennsylvania
$823K -$119K -28,486 -13%
GIM
4
Granahan Investment Management
Massachusetts
$666K -$11K -2,638 -2%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$500K -$130K -31,156 -22%
BlackRock
6
BlackRock
New York
$495K -$713K -170,588 -60%
Acadian Asset Management
7
Acadian Asset Management
Massachusetts
$459K -$15.8K -3,784 -4%
MIM
8
Meros Investment Management
Texas
$408K +$52.3K +12,527 +16%
UBS Group
9
UBS Group
Switzerland
$352K +$321K +76,864 +3,261%
Renaissance Technologies
10
Renaissance Technologies
New York
$351K -$38.3K -9,172 -10%
Millennium Management
11
Millennium Management
New York
$284K +$267K +63,987 New
AI
12
Acuitas Investments
Washington
$218K
Geode Capital Management
13
Geode Capital Management
Massachusetts
$195K -$202K -48,304 -52%
PPW
14
Pasadena Private Wealth
California
$108K +$19.2K +4,587 +23%
Goldman Sachs
15
Goldman Sachs
New York
$92.2K +$25.6K +6,134 +42%
Two Sigma Investments
16
Two Sigma Investments
New York
$87.8K +$10.2K +2,446 +14%
Northern Trust
17
Northern Trust
Illinois
$83.8K -$96K -22,974 -55%
RC
18
RBF Capital
California
$71K -$8.74K -2,091 -12%
State Street
19
State Street
Massachusetts
$66.3K -$249K -59,589 -80%
Susquehanna International Group
20
Susquehanna International Group
Pennsylvania
$62.3K +$32.4K +7,765 +124%
Marshall Wace
21
Marshall Wace
United Kingdom
$61K +$58K +13,870 New
Bank of New York Mellon
22
Bank of New York Mellon
New York
$56K -$34.8K -8,333 -40%
WN
23
Williams & Novak
California
$47.3K +$12K +2,880 +37%
GI
24
GAMCO Investors
Connecticut
$34.2K -$3.34K -800 -9%
Fidelity Investments
25
Fidelity Investments
Massachusetts
$32.1K +$20.6K +4,924 +214%

HBIO Hedge Fund Activity: Q2 2025 in Review

68 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Harvard Bioscience (HBIO) for Q2 2025, worth a combined $8.39M — down 42% from $14.5M a quarter earlier.

Sellers outnumbered buyers: 37 funds closed out of HBIO and 14 opened new positions — a net loss of 23 holders — while 27 trimmed existing stakes and 19 added.

The largest buyer was UBS Group, adding an estimated $321K. The largest seller was Royce & Associates, exiting entirely with an estimated $1.01M sold.

  • 68 institutional investors held Harvard Bioscience (HBIO) as of Q2 2025, down from 91 in Q1 2025.
  • Funds reported $8.39M of Harvard Bioscience stock for Q2 2025, down 42% quarter-over-quarter.
  • 14 funds opened new Harvard Bioscience positions in Q2 2025 and 37 closed out, a net change of -23 holders.
  • The largest Harvard Bioscience buyer in Q2 2025 was UBS Group, an estimated $321K added.
  • The largest Harvard Bioscience seller in Q2 2025 was Royce & Associates, an estimated $1.01M sold.

Based on aggregated 13F filings for Q2 2025.