Jeff Yass’s Q32 Bio QTTB Stock Holding History

Jeff Yass’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
2022 Q3	–	Sell	-1,333	Closed	-$47K	–	14272
2022 Q2	$47K	Sell	1,333 -1,017	-43%	-$34.7K	﹤0.01%	12015
2022 Q1	$129K	Sell	2,350 -789	-25%	-$49K	﹤0.01%	11714
2021 Q4	$206K	Sell	3,139 -294	-9%	-$28.5K	﹤0.01%	11384
2021 Q3	$486K	Sell	3,433 -389	-10%	-$49.6K	﹤0.01%	9464
2021 Q2	$500K	Sell	3,822 -3,200	-46%	-$399K	﹤0.01%	9598
2021 Q1	$1.19M	Buy	7,022 +1,900	+37%	+$400K	﹤0.01%	7262
2020 Q4	$1.04M	Sell	5,122 -600	-10%	-$116K	﹤0.01%	6633
2020 Q3	$1.1M	Buy	5,722 +1,711	+43%	+$383K	﹤0.01%	5867
2020 Q2	$1.1M	Buy	4,011 +2,517	+168%	+$671K	﹤0.01%	5712
2020 Q1	$418K	Sell	1,494 -284	-16%	-$87K	﹤0.01%	7316
2019 Q4	$662K	Buy	+1,778	New	+$509K	﹤0.01%	6379

Other funds holding QTTB

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

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 Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

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

SummitTX Capital Fort Worth, Texas $3.89B AUM 55.94% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Jeff Yass's QTTB Position: Q2 2026 in Review

Jeff Yass opened a new position in Q32 Bio (QTTB) in Q2 2026: 23,342 shares worth $297K. The stake represents ﹤0.01% of the portfolio and ranks #11058 among its holdings. This is a return to the name: Jeff Yass previously reported a position in QTTB as recently as Q2 2025.

Jeff Yass first reported a position in QTTB in Q2 2019 and has held it in 22 quarters since. The position peaked at $2.4M in Q2 2021. 72 funds tracked by Wall St. Rank hold QTTB as of Q2 2026.

Jeff Yass held 23,342 shares of Q32 Bio worth $297K as of Q2 2026.
Q32 Bio was a new Jeff Yass position in Q2 2026.
Q32 Bio made up ﹤0.01% of Jeff Yass's portfolio in Q2 2026, its #11058 holding.
Jeff Yass first reported a position in Q32 Bio in Q2 2019 and has held it in 22 quarters since.
Jeff Yass's Q32 Bio position peaked at $2.4M in Q2 2021.
72 funds tracked by Wall St. Rank held Q32 Bio as of Q2 2026.

Based on Susquehanna International Group's 13F filing for Q2 2026, filed 14 Aug 2026.