Jim Simons
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Jim Simons’s SELLAS Life Sciences SLS Stock Holding History

Jim Simons’s Portfolio SLS Stock Details SLS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-291,822
Closed -$470K – 3714
2025
Q3 		$470K Buy
+291,822
New +$520K ﹤0.01% 2822
2025
Q2 		– Sell
-34,892
Closed -$37.7K – 3867
2025
Q1 		$37.7K Buy
+34,892
New +$41.4K ﹤0.01% 3317
2024
Q4 		– Sell
-92,937
Closed -$116K – 3884
2024
Q3 		$116K Buy
92,937
+60,491
+186% +$73.9K ﹤0.01% 3234
2024
Q2 		$38.6K Buy
+32,446
New +$44.1K ﹤0.01% 3318
2024
Q1 		– Sell
-50,400
Closed -$53K – 4040
2023
Q4 		$53K Buy
+50,400
New +$54.5K ﹤0.01% 3444
2022
Q4 		– Sell
-22,400
Closed -$45K – 4386
2022
Q3 		$45K Sell
22,400
-11,438
-34% -$31.6K ﹤0.01% 3783
2022
Q2 		$75K Buy
+33,838
New +$99.2K ﹤0.01% 3912
2020
Q3 		– Sell
-14,360
Closed -$42K – 3657
2020
Q2 		$42K Buy
+14,360
New +$39K ﹤0.01% 3351
2019
Q4 		– Sell
-2,786
Closed -$17K – 3723
2019
Q3 		$17K Sell
2,786
-57,877
-95% -$426K ﹤0.01% 3380
2019
Q2 		$341K Buy
60,663
+34,223
+129% +$1.22M ﹤0.01% 3134
2019
Q1 		$1.35M Buy
26,440
+1,988
+8% +$138K ﹤0.01% 2528
2018
Q4 		$1.5M Buy
24,452
+8,895
+57% +$689K ﹤0.01% 2382
2018
Q3 		$949K Buy
15,557
+8,410
+118% +$580K ﹤0.01% 2626
2018
Q2 		$1.22M Buy
7,147
+3,966
+125% +$1.09M ﹤0.01% 2518
2018
Q1 		$549K Buy
3,181
+1,074
+51% +$307K ﹤0.01% 2881
2017
Q4 		$828K Buy
2,107
+260
+14% +$126K ﹤0.01% 2736
2017
Q3 		$977K Buy
1,847
+366
+25% +$242K ﹤0.01% 2583
2017
Q2 		$1.29M Buy
1,481
+414
+39% +$360K ﹤0.01% 2477
2017
Q1 		$976K Buy
+1,067
New +$1.77M ﹤0.01% 2550

Other funds holding SLS

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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 $3.37T AUM 44.26% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Jim Simons's SLS Position: Q4 2025 in Review

Jim Simons sold out of SELLAS Life Sciences (SLS) in Q4 2025, closing a stake of 291,822 shares — an estimated $470K sold.

Jim Simons first reported a position in SLS in Q1 2017 and held it in 19 quarters. The position peaked at $1.5M in Q4 2018. 112 funds tracked by Wall St. Rank hold SLS as of Q4 2025.

  • Jim Simons reported no remaining SELLAS Life Sciences position as of Q4 2025 after selling out during the quarter.
  • Jim Simons sold 291,822 SELLAS Life Sciences shares in Q4 2025, an estimated $470K.
  • Jim Simons first reported a position in SELLAS Life Sciences in Q1 2017 and held it in 19 quarters.
  • Jim Simons's SELLAS Life Sciences position peaked at $1.5M in Q4 2018.
  • 112 funds tracked by Wall St. Rank held SELLAS Life Sciences as of Q4 2025.

Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.