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
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 $368M AUM 42.67% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
NSCM
New South Capital Management Memphis, Tennessee $2.09B AUM 33.67% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Hartree Partners's HDSN Position: Q1 2026 in Review

Hartree Partners held its Hudson Technologies (HDSN) position steady in Q1 2026 at 3,800,000 shares worth $22.3M. The position accounts for 4.79% of the portfolio, ranked #4.

Hartree Partners first reported a position in HDSN in Q1 2025 and has held it in 5 quarters since. The position peaked at $37.7M in Q3 2025. 160 funds tracked by Wall St. Rank hold HDSN as of Q1 2026.

  • Hartree Partners held 3,800,000 shares of Hudson Technologies worth $22.3M as of Q1 2026.
  • Hartree Partners left its Hudson Technologies share count unchanged in Q1 2026.
  • Hudson Technologies made up 4.79% of Hartree Partners's portfolio in Q1 2026, its #4 holding.
  • Hartree Partners first reported a position in Hudson Technologies in Q1 2025 and has held it in 5 quarters since.
  • Hartree Partners's Hudson Technologies position peaked at $37.7M in Q3 2025.
  • 160 funds tracked by Wall St. Rank held Hudson Technologies as of Q1 2026.

Based on Hartree Partners's 13F filing for Q1 2026, filed 12 May 2026.