JO
QTTB icon

John Overdeck’s Q32 Bio QTTB Stock Holding History

John Overdeck’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
Q2 		$632K Buy
49,582
+7,236
+17% +$60.5K ﹤0.01% 3986
2026
Q1 		$272K Sell
42,346
-4,479
-10% -$21.3K ﹤0.01% 4131
2025
Q4 		$155K Buy
46,825
+15,319
+49% +$43.3K ﹤0.01% 3800
2025
Q3 		$62.4K Buy
+31,506
New +$60.5K ﹤0.01% 3522
2025
Q1 		– Sell
-53,175
Closed -$183K – 3539
2024
Q4 		$183K Buy
+53,175
New +$1.68M ﹤0.01% 2889
2022
Q4 		– Sell
-584
Closed -$17K – 3118
2022
Q3 		$17K Buy
+584
New +$23.8K ﹤0.01% 2388
2022
Q1 		– Sell
-4,352
Closed -$285K – 4554
2021
Q4 		$285K Sell
4,352
-4,600
-51% -$446K ﹤0.01% 3682
2021
Q3 		$1.27M Buy
+8,952
New +$1.14M ﹤0.01% 2393
2020
Q2 		– Sell
-923
Closed -$258K – 3620
2020
Q1 		$258K Buy
+923
New +$283K ﹤0.01% 2444
2019
Q3 		– Sell
-2,533
Closed -$892K – 3860
2019
Q2 		$892K Buy
+2,533
New +$995K ﹤0.01% 2035

Other funds holding QTTB

O
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
BCM
Boxer Capital Management San Diego, California $1.33B AUM 864.5% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $881M AUM 160.77% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
OM
Opaleye Management Boston, Massachusetts $1.1B AUM 197.64% 1-Year Est. Return
LGM
Logos Global Management San Francisco, California $2.32B AUM 536.01% 1-Year Est. Return
SC
SummitTX Capital Fort Worth, Texas $3.89B AUM 55.94% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

John Overdeck's QTTB Position: Q2 2026 in Review

John Overdeck increased its Q32 Bio (QTTB) stake by 17% in Q2 2026, buying an estimated $60.5K and bringing the position to 49,582 shares worth $632K. The position accounts for ﹤0.01% of the portfolio, ranked #3986.

John Overdeck first reported a position in QTTB in Q2 2019 and has held it in 10 quarters since. The position peaked at $1.27M in Q3 2021. 72 funds tracked by Wall St. Rank hold QTTB as of Q2 2026.

  • John Overdeck held 49,582 shares of Q32 Bio worth $632K as of Q2 2026.
  • John Overdeck bought 7,236 Q32 Bio shares in Q2 2026, an estimated $60.5K.
  • Q32 Bio made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3986 holding.
  • John Overdeck first reported a position in Q32 Bio in Q2 2019 and has held it in 10 quarters since.
  • John Overdeck's Q32 Bio position peaked at $1.27M in Q3 2021.
  • 72 funds tracked by Wall St. Rank held Q32 Bio as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.