Jim Simons
QTTB icon

Jim Simons’s Q32 Bio QTTB Stock Holding History

Jim Simons’s Portfolio QTTB Stock Details QTTB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.33M Buy
206,915
+107,315
+108% +$510K ﹤0.01% 2122
2025
Q4 		$331K Buy
99,600
+52,300
+111% +$148K ﹤0.01% 2727
2025
Q3 		$93.7K Sell
47,300
-29,700
-39% -$57.1K ﹤0.01% 3262
2025
Q2 		$115K Buy
+77,000
New +$131K ﹤0.01% 3280
2024
Q4 		– Sell
-16,164
Closed -$721K – 3967
2024
Q3 		$721K Buy
16,164
+1,400
+9% +$51.4K ﹤0.01% 2618
2024
Q2 		$265K Buy
+14,764
New +$353K ﹤0.01% 2958
2024
Q1 		– Sell
-9,700
Closed -$106K – 4146
2023
Q4 		$106K Sell
9,700
-300
-3% -$4.39K ﹤0.01% 3292
2023
Q3 		$211K Sell
10,000
-6,617
-40% -$135K ﹤0.01% 3076
2023
Q2 		$265K Sell
16,617
-562
-3% -$10.1K ﹤0.01% 3182
2023
Q1 		$318K Sell
17,179
-1,330
-7% -$33.1K ﹤0.01% 3089
2022
Q4 		$420K Sell
18,509
-2,552
-12% -$67.7K ﹤0.01% 3043
2022
Q3 		$610K Buy
21,061
+7,239
+52% +$295K ﹤0.01% 2808
2022
Q2 		$490K Buy
13,822
+822
+6% +$28.1K ﹤0.01% 3175
2022
Q1 		$711K Buy
13,000
+4,889
+60% +$304K ﹤0.01% 2960
2021
Q4 		$531K Buy
+8,111
New +$787K ﹤0.01% 3047
2020
Q3 		– Sell
-5,011
Closed -$1.37M – 3756
2020
Q2 		$1.37M Buy
5,011
+2,023
+68% +$539K ﹤0.01% 2392
2020
Q1 		$836K Buy
+2,988
New +$915K ﹤0.01% 2510

Other funds holding QTTB

O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
OM
Opaleye Management Boston, Massachusetts $759M AUM 124.8% 1-Year Est. Return
CG
Carlyle Group Washington, District of Columbia $10B AUM 10.61% 1-Year Est. Return
AVM
Arch Venture Management Chicago, Illinois $677M AUM 322.07% 1-Year Est. Return
ACA
Acorn Capital Advisors New York $352M AUM 299.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Mackenzie Financial
Mackenzie Financial Toronto Ontario, Ontario, Canada $83.3B AUM 31.19% 1-Year Est. Return
S
Sanofi Paris, France $534M AUM 205.96% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Jim Simons's QTTB Position: Q1 2026 in Review

Jim Simons increased its Q32 Bio (QTTB) stake by 108% in Q1 2026, buying an estimated $510K and bringing the position to 206,915 shares worth $1.33M. The position accounts for ﹤0.01% of the portfolio, ranked #2122.

Jim Simons first reported a position in QTTB in Q1 2020 and has held it in 17 quarters since. The position peaked at $1.37M in Q2 2020. 54 funds tracked by Wall St. Rank hold QTTB as of Q1 2026.

  • Jim Simons held 206,915 shares of Q32 Bio worth $1.33M as of Q1 2026.
  • Jim Simons bought 107,315 Q32 Bio shares in Q1 2026, an estimated $510K.
  • Q32 Bio made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #2122 holding.
  • Jim Simons first reported a position in Q32 Bio in Q1 2020 and has held it in 17 quarters since.
  • Jim Simons's Q32 Bio position peaked at $1.37M in Q2 2020.
  • 54 funds tracked by Wall St. Rank held Q32 Bio as of Q1 2026.

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