State of Wisconsin Investment Board’s Hudson Technologies HDSN Stock Holding History

State of Wisconsin Investment Board’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	$474K	Sell	80,690 -19,074	-19%	-$131K	﹤0.01%	2033
2025 Q4	$683K	Buy	99,764 +26,937	+37%	+$212K	﹤0.01%	1808
2025 Q3	$723K	Sell	72,827 -27,370	-27%	-$257K	﹤0.01%	1729
2025 Q2	$814K	Buy	100,197 +12,700	+15%	+$87.1K	﹤0.01%	1661
2025 Q1	$540K	Buy	87,497 +20,112	+30%	+$118K	﹤0.01%	1732
2024 Q4	$376K	Buy	67,385 +10,048	+18%	+$66.2K	﹤0.01%	1922
2024 Q3	$478K	Sell	57,337 -53,815	-48%	-$445K	﹤0.01%	1892
2024 Q2	$977K	Buy	111,152 +70,621	+174%	+$684K	﹤0.01%	1560
2024 Q1	$446K	Buy	+40,531	New	+$528K	﹤0.01%	1812

Other funds holding HDSN

Hartree Partners New York $467M AUM 66.71% 1-Year Est. Return

WCM

Westerly Capital Management San Francisco, California $368M AUM 42.67% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

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 Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

State of Wisconsin Investment Board's HDSN Position: Q1 2026 in Review

State of Wisconsin Investment Board reduced its Hudson Technologies (HDSN) stake by 19% in Q1 2026, selling an estimated $131K and leaving 80,690 shares worth $474K. The position accounts for ﹤0.01% of the portfolio, ranked #2033.

State of Wisconsin Investment Board first reported a position in HDSN in Q1 2024 and has held it in 9 quarters since. The position peaked at $977K in Q2 2024. 160 funds tracked by Wall St. Rank hold HDSN as of Q1 2026.

State of Wisconsin Investment Board held 80,690 shares of Hudson Technologies worth $474K as of Q1 2026.
State of Wisconsin Investment Board sold 19,074 Hudson Technologies shares in Q1 2026, an estimated $131K.
Hudson Technologies made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #2033 holding.
State of Wisconsin Investment Board first reported a position in Hudson Technologies in Q1 2024 and has held it in 9 quarters since.
State of Wisconsin Investment Board's Hudson Technologies position peaked at $977K in Q2 2024.
160 funds tracked by Wall St. Rank held Hudson Technologies as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.