Hudson Technologies
HDSN
152 hedge funds and large institutions have $181M invested in Hudson Technologies in 2026 Q2 according to their latest regulatory filings, with 26 funds opening new positions, 46 increasing their positions, 52 reducing their positions, and 30 closing their positions.
64% more call options, than puts
Call options by funds: $162K | Put options by funds: $99K
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
2.4% less ownership
Funds ownership: 77.53% → 75.13% (-2.4%)
5% less funds holding
Funds holding: 160 → 152 (-8)
6% less capital invested
Capital invested by funds: $194M → $181M (-$12.2M)
12% less repeat investments, than reductions
Existing positions increased: 46 | Existing positions reduced: 52
13% less first-time investments, than exits
New positions opened: 26 | Existing positions closed: 30
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HP
Hartree Partners
New York
|
+$3.48M |
| 2 |
Nuveen
Charlotte,
North Carolina
|
+$2.23M |
| 3 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$2M |
| 4 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
+$1.86M |
| 5 |
AA
Ancora Advisors
Cleveland,
Ohio
|
+$1.73M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
NSCM
New South Capital Management
Memphis,
Tennessee
|
-$7.3M |
| 2 |
SBH
Segall Bryant & Hamill
Chicago,
Illinois
|
-$3.69M |
| 3 |
Ohio Public Employees Retirement System (OPERS)
Columbus,
Ohio
|
-$2.04M |
| 4 |
Lazard Asset Management
New York
|
-$1.92M |
| 5 |
American Century Companies
Kansas City,
Missouri
|
-$1.81M |
HDSN Hedge Fund Activity: Q2 2026 in Review
152 of the 8,316 institutional investors tracked by Wall St. Rank reported a position in Hudson Technologies (HDSN) for Q2 2026, worth a combined $181M — down 6.3% from $194M a quarter earlier.
Sellers outnumbered buyers: 30 funds closed out of HDSN and 26 opened new positions — a net loss of 4 holders — while 52 trimmed existing stakes and 46 added.
The largest buyer was Hartree Partners, adding an estimated $3.48M. The largest seller was New South Capital Management, exiting entirely with an estimated $7.3M sold.
- 152 institutional investors held Hudson Technologies (HDSN) as of Q2 2026, down from 160 in Q1 2026.
- Funds reported $181M of Hudson Technologies stock for Q2 2026, down 6.3% quarter-over-quarter.
- 26 funds opened new Hudson Technologies positions in Q2 2026 and 30 closed out, a net change of -4 holders.
- The largest Hudson Technologies buyer in Q2 2026 was Hartree Partners, an estimated $3.48M added.
- The largest Hudson Technologies seller in Q2 2026 was New South Capital Management, an estimated $7.3M sold.
Based on aggregated 13F filings for Q2 2026.