Ticker · CUSIP 416906105

HBIOUSD

HARVARD BIOSCIENCE INC
···Share
Holders (tracked)
7
Combined shares
2,713,734
Combined value
$1.81M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 8.
782024Q12025Q4

SEC event timeline

11 events
  1. +42,992 shares · 2025Q4
    13F
  2. +538,260 shares · 2025Q4
    13F
  3. −25,636 shares · 2025Q4
    13F
  4. +14,717 shares · 2025Q4
    13F
  5. +152,763 shares · 2025Q4
    13F
  6. +57,000 shares · 2025Q4
    13F
  7. −68,164 shares · 2025Q3
    13F
  8. +276,372 shares · 2025Q3
    13F
  9. −45,706 shares · 2025Q3
    13F
  10. +76,500 shares · 2025Q3
    13F
  11. −77,000 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
Added to2
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
6
$27.2M
2022Q2
7
$10.5M
2022Q3
6
$6K
2022Q4
7
$3.2M
2023Q1
7
$4.2M
2023Q2
7
$16.6M
2023Q3
8
$13.9M
2023Q4
4
$16.2M
2024Q1
8
$12.4M
2024Q2
9
$11.2M
2024Q3
7
$2.4M
2024Q4
6
$2.0M
2025Q1
8
$852K
2025Q2
7
$818K
2025Q3
4
$858K
2025Q4
7
$1.8M

Who owns HBIOUSD

7 super-investors · 2025Q4
Tracked stake
2.71M
shares
Combined value
$2M
% of shares outstanding
shares-out unknown
Quarter action mix
New4Added2Trim1
#ManagerSharesValue
1Renaissance Technologies1.02M$683K
2Two Sigma Investments1.01M$677K
3Izzy Englander
Millennium Mgmt
546.1K$365K
4Mario Gabelli
GAMCO
57.0K$38K
5Ken Griffin
Citadel Advisors
43.0K$29K
6Ken Griffin
Citadel Advisors
19.3K$13K
7Steve Cohen
Point72
14.7K$10K

Recent moves

20 transactions
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