HP
HDSN

Hartree Partners’s Hudson Technologies HDSN Stock Holding History

Hartree Partners’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 		$25.3M Buy
4,411,889
+611,889
+16% +$3.48M 5.4% 4
2026
Q1 		$22.3M Hold
3,800,000
– – 4.79% 4
2025
Q4 		$26M Hold
3,800,000
– – 9.42% 2
2025
Q3 		$37.7M Sell
3,800,000
-200,000
-5% -$1.88M 12.98% 2
2025
Q2 		$32.5M Buy
4,000,000
+426,858
+12% +$2.93M 9.14% 2
2025
Q1 		$22M Buy
+3,573,142
New +$21M 7.93% 3

Other funds holding HDSN

WCM
Westerly Capital Management San Francisco, California $542M AUM 48.48% 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

Hartree Partners's HDSN Position: Q2 2026 in Review

Hartree Partners increased its Hudson Technologies (HDSN) stake by 16% in Q2 2026, buying an estimated $3.48M and bringing the position to 4,411,889 shares worth $25.3M. The position accounts for 5.4% of the portfolio, ranked #4.

Hartree Partners first reported a position in HDSN in Q1 2025 and has held it in 6 quarters since. The position peaked at $37.7M in Q3 2025. 151 funds tracked by Wall St. Rank hold HDSN as of Q2 2026.

  • Hartree Partners held 4,411,889 shares of Hudson Technologies worth $25.3M as of Q2 2026.
  • Hartree Partners bought 611,889 Hudson Technologies shares in Q2 2026, an estimated $3.48M.
  • Hudson Technologies made up 5.4% of Hartree Partners's portfolio in Q2 2026, its #4 holding.
  • Hartree Partners first reported a position in Hudson Technologies in Q1 2025 and has held it in 6 quarters since.
  • Hartree Partners's Hudson Technologies position peaked at $37.7M in Q3 2025.
  • 151 funds tracked by Wall St. Rank held Hudson Technologies as of Q2 2026.

Based on Hartree Partners's 13F filing for Q2 2026, filed 12 Aug 2026.