Ticker · CUSIP 444144109

HDSN

HUDSON TECHNOLOGIES INC
···Share
Holders (tracked)
9
Combined shares
3,240,132
Combined value
$21.69M
Last close
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
992024Q12025Q4

SEC event timeline

15 events
  1. −34,303 shares · 2025Q4
    13F
  2. −239,029 shares · 2025Q4
    13F
  3. −54,821 shares · 2025Q4
    13F
  4. −166,897 shares · 2025Q4
    13F
  5. +108,963 shares · 2025Q4
    13F
  6. +29,237 shares · 2025Q4
    13F
  7. −5,932 shares · 2025Q4
    13F
  8. −99,600 shares · 2025Q4
    13F
  9. −110,767 shares · 2025Q3
    13F
  10. +4,300 shares · 2025Q3
    13F
  11. −163,058 shares · 2025Q3
    13F
  12. +14,333 shares · 2025Q3
    13F
  13. +30,146 shares · 2025Q3
    13F
  14. −562,662 shares · 2025Q3
    13F
  15. +125,000 shares · 2025Q3
    13F

Insider activity

Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
2
DateInsiderCodeSharesPriceValue
04-10Feeler Jeffrey R
Director
A4,065$0
04-10Sheriff Alan
Director
A4,065$0

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions1
Added to1
Exited0

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
8
$1.19B
2022Q2
8
$175.1M
2022Q3
9
$669K
2022Q4
11
$32.3M
2023Q1
10
$27.1M
2023Q2
8
$32.4M
2023Q3
10
$46.8M
2023Q4
8
$50.0M
2024Q1
9
$42.1M
2024Q2
10
$49.6M
2024Q3
9
$18.2M
2024Q4
9
$25.2M
2025Q1
10
$28.0M
2025Q2
9
$35.4M
2025Q3
9
$36.4M
2025Q4
9
$21.7M

Who owns HDSN

9 super-investors · 2025Q4
Tracked stake
3.24M
shares
Combined value
$22M
% of shares outstanding
shares-out unknown
Quarter action mix
New1Added1Trim6Held1
#ManagerSharesValue
1Renaissance Technologies1.70M$12M
2D.E. Shaw & Co.582.8K$4M
3AQR Capital Management339.4K$2M
4Izzy Englander
Millennium Mgmt
189.1K$1M
5Two Sigma Investments135.4K$927K
6Steve Cohen
Point72
113.3K$776K
7Ken Griffin
Citadel Advisors
80.1K$549K
8Paul Tudor Jones
Tudor Investment
29.2K$200K
9T. Rowe Price73.7K$505

Recent moves

20 transactions
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