WCM
HDSN

Westerly Capital Management’s Hudson Technologies HDSN Stock Holding History

Westerly Capital Management’s Portfolio HDSN Stock Details HDSN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$19.4M Buy
3,380,000
+205,000
+6% +$1.17M 3.58% 6
2026
Q1 		$18.7M Buy
3,175,000
+625,000
+25% +$4.29M 5.08% 4
2025
Q4 		$17.5M Buy
2,550,000
+660,000
+35% +$5.2M 3.84% 5
2025
Q3 		$18.8M Sell
1,890,000
-110,000
-6% -$1.03M 5.88% 4
2025
Q2 		$16.2M Buy
2,000,000
+775,000
+63% +$5.32M 6.02% 3
2025
Q1 		$7.56M Buy
1,225,000
+207,420
+20% +$1.22M 3.27% 7
2024
Q4 		$5.68M Buy
1,017,580
+207,580
+26% +$1.37M 2.62% 13
2024
Q3 		$6.76M Buy
810,000
+135,000
+20% +$1.12M 3.8% 8
2024
Q2 		$5.93M Buy
675,000
+85,000
+14% +$824K 2.95% 13
2024
Q1 		$6.5M Buy
590,000
+127,000
+27% +$1.65M 2.46% 12
2023
Q4 		$6.25M Buy
463,000
+48,000
+12% +$620K 3.09% 9
2023
Q3 		$5.52M Buy
415,000
+240,000
+137% +$2.59M 3.89% 8
2023
Q2 		$1.68M Sell
175,000
-25,000
-13% -$217K 0.89% 36
2023
Q1 		$1.75M Sell
200,000
-200,000
-50% -$1.94M 1.25% 30
2022
Q4 		$4.05M Sell
400,000
-150,000
-27% -$1.47M 3.18% 13
2022
Q3 		$4.04M Sell
550,000
-1,005,000
-65% -$8.45M 3.62% 11
2022
Q2 		$11.7M Sell
1,555,000
-470,576
-23% -$3.88M 9.47% 2
2022
Q1 		$12.6M Sell
2,025,576
-134,424
-6% -$596K 9.29% 1
2021
Q4 		$9.59M Buy
+2,160,000
New +$8.38M 6.3% 1

Other funds holding HDSN

HP
Hartree Partners New York $469M AUM 46.64% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
CC
Caspian Capital New York $176M AUM

Westerly Capital Management's HDSN Position: Q2 2026 in Review

Westerly Capital Management increased its Hudson Technologies (HDSN) stake by 6.5% in Q2 2026, buying an estimated $1.17M and bringing the position to 3,380,000 shares worth $19.4M. The position accounts for 3.58% of the portfolio, ranked #6.

Westerly Capital Management first reported a position in HDSN in Q4 2021 and has held it in 19 quarters since. 152 funds tracked by Wall St. Rank hold HDSN as of Q2 2026.

  • Westerly Capital Management held 3,380,000 shares of Hudson Technologies worth $19.4M as of Q2 2026.
  • Westerly Capital Management bought 205,000 Hudson Technologies shares in Q2 2026, an estimated $1.17M.
  • Hudson Technologies made up 3.58% of Westerly Capital Management's portfolio in Q2 2026, its #6 holding.
  • Westerly Capital Management first reported a position in Hudson Technologies in Q4 2021 and has held it in 19 quarters since.
  • 152 funds tracked by Wall St. Rank held Hudson Technologies as of Q2 2026.

Based on Westerly Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.