Jim Simons
IOBT

Jim Simons’s IO Biotech IOBT Stock Holding History

Jim Simons’s Portfolio IOBT Stock Details IOBT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-207,601
Closed -$126K – 3460
2025
Q4 		$126K Sell
207,601
-339,714
-62% -$252K ﹤0.01% 2970
2025
Q3 		$199K Buy
547,315
+408,015
+293% +$703K ﹤0.01% 3134
2025
Q2 		$194K Buy
139,300
+12,900
+10% +$14.8K ﹤0.01% 3178
2025
Q1 		$138K Buy
126,400
+7,600
+6% +$7.18K ﹤0.01% 3144
2024
Q4 		$109K Buy
118,800
+21,800
+22% +$21.7K ﹤0.01% 3273
2024
Q3 		$102K Sell
97,000
-83,800
-46% -$106K ﹤0.01% 3254
2024
Q2 		$212K Buy
180,800
+13,600
+8% +$19K ﹤0.01% 3028
2024
Q1 		$289K Buy
167,200
+78,300
+88% +$136K ﹤0.01% 3102
2023
Q4 		$167K Buy
88,900
+64,514
+265% +$76.9K ﹤0.01% 3187
2023
Q3 		$34K Sell
24,386
-44,714
-65% -$78.6K ﹤0.01% 3457
2023
Q2 		$135K Buy
69,100
+7,400
+12% +$14.5K ﹤0.01% 3400
2023
Q1 		$116K Buy
61,700
+37,500
+155% +$93.5K ﹤0.01% 3442
2022
Q4 		$56K Buy
24,200
+5,777
+31% +$15.3K ﹤0.01% 3778
2022
Q3 		$50K Buy
+18,423
New +$68.3K ﹤0.01% 3757

Other funds holding IOBT

IC
Ikarian Capital Dallas, Texas $1.23B AUM 600.17% 1-Year Est. Return
BFM
Boothbay Fund Management New York $7.71B AUM 106.29% 1-Year Est. Return
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $5.75B AUM 30.56% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Citigroup
Citigroup New York $303B AUM 53.02% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
BPA
Beacon Pointe Advisors Newport Beach, California $18.9B AUM 18.9% 1-Year Est. Return

Jim Simons's IOBT Position: Q1 2026 in Review

Jim Simons sold out of IO Biotech (IOBT) in Q1 2026, closing a stake of 207,601 shares — an estimated $126K sold.

Jim Simons first reported a position in IOBT in Q3 2022 and held it in 14 quarters. The position peaked at $289K in Q1 2024. 12 funds tracked by Wall St. Rank hold IOBT as of Q1 2026.

  • Jim Simons reported no remaining IO Biotech position as of Q1 2026 after selling out during the quarter.
  • Jim Simons sold 207,601 IO Biotech shares in Q1 2026, an estimated $126K.
  • Jim Simons first reported a position in IO Biotech in Q3 2022 and held it in 14 quarters.
  • Jim Simons's IO Biotech position peaked at $289K in Q1 2024.
  • 12 funds tracked by Wall St. Rank held IO Biotech as of Q1 2026.

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