Jim Simons
HDSN

Jim Simons’s Hudson Technologies HDSN Stock Holding History

Jim Simons’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 		$8.84M Sell
1,504,250
-193,000
-11% -$1.32M 0.01% 1033
2025
Q4 		$11.6M Sell
1,697,250
-99,600
-6% -$785K 0.02% 845
2025
Q3 		$17.8M Buy
1,796,850
+125,000
+7% +$1.17M 0.02% 783
2025
Q2 		$13.6M Buy
1,671,850
+183,500
+12% +$1.26M 0.02% 894
2025
Q1 		$9.18M Sell
1,488,350
-13,800
-0.9% -$81.1K 0.01% 1050
2024
Q4 		$8.38M Buy
1,502,150
+246,000
+20% +$1.62M 0.01% 1125
2024
Q3 		$10.5M Sell
1,256,150
-68,700
-5% -$568K 0.02% 1016
2024
Q2 		$11.6M Sell
1,324,850
-28,600
-2% -$277K 0.02% 840
2024
Q1 		$14.9M Buy
1,353,450
+16,700
+1% +$217K 0.02% 782
2023
Q4 		$18M Buy
1,336,750
+20,600
+2% +$266K 0.03% 654
2023
Q3 		$17.5M Buy
1,316,150
+55,400
+4% +$598K 0.03% 633
2023
Q2 		$12.1M Sell
1,260,750
-27,900
-2% -$243K 0.02% 927
2023
Q1 		$11.3M Sell
1,288,650
-9,298
-0.7% -$90K 0.01% 1034
2022
Q4 		$13.1M Buy
1,297,948
+193,598
+18% +$1.89M 0.02% 946
2022
Q3 		$8.12M Sell
1,104,350
-60,300
-5% -$507K 0.01% 1145
2022
Q2 		$8.75M Buy
1,164,650
+243,500
+26% +$2.01M 0.01% 1181
2022
Q1 		$5.72M Buy
921,150
+165,800
+22% +$735K 0.01% 1493
2021
Q4 		$3.35M Buy
755,350
+253,500
+51% +$983K ﹤0.01% 1785
2021
Q3 		$1.77M Buy
501,850
+165,000
+49% +$551K ﹤0.01% 2180
2021
Q2 		$1.15M Buy
336,850
+30,901
+10% +$74.5K ﹤0.01% 2601
2021
Q1 		$493K Buy
305,949
+286,049
+1,437% +$415K ﹤0.01% 2912
2020
Q4 		$22K Buy
+19,900
New +$23.8K ﹤0.01% 3339
2017
Q1 		– Sell
-263,400
Closed -$2.11M – 3291
2016
Q4 		$2.11M Buy
263,400
+165,100
+168% +$1.17M ﹤0.01% 2199
2016
Q3 		$654K Buy
+98,300
New +$519K ﹤0.01% 2734
2015
Q1 		– Sell
-34,300
Closed -$129K – 3240
2014
Q4 		$129K Buy
+34,300
New +$127K ﹤0.01% 2764
2013
Q3 		– Sell
-90,400
Closed -$288K – 2865
2013
Q2 		$288K Buy
+90,400
New +$330K ﹤0.01% 2414

Other funds holding HDSN

HP
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
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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
NSCM
New South Capital Management Memphis, Tennessee $2.28B AUM 47.19% 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 $185B AUM 39.58% 1-Year Est. Return

Jim Simons's HDSN Position: Q1 2026 in Review

Jim Simons reduced its Hudson Technologies (HDSN) stake by 11% in Q1 2026, selling an estimated $1.32M and leaving 1,504,250 shares worth $8.84M. The position accounts for 0.01% of the portfolio, ranked #1033.

Jim Simons first reported a position in HDSN in Q2 2013 and has held it in 26 quarters since. The position peaked at $18M in Q4 2023. 160 funds tracked by Wall St. Rank hold HDSN as of Q1 2026.

  • Jim Simons held 1,504,250 shares of Hudson Technologies worth $8.84M as of Q1 2026.
  • Jim Simons sold 193,000 Hudson Technologies shares in Q1 2026, an estimated $1.32M.
  • Hudson Technologies made up 0.01% of Jim Simons's portfolio in Q1 2026, its #1033 holding.
  • Jim Simons first reported a position in Hudson Technologies in Q2 2013 and has held it in 26 quarters since.
  • Jim Simons's Hudson Technologies position peaked at $18M in Q4 2023.
  • 160 funds tracked by Wall St. Rank held Hudson Technologies as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.