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Atlas Venture Life Science Advisors’s Q32 Bio QTTB Stock Holding History

Atlas Venture Life Science Advisors’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 		$34.6M Buy
2,717,106
+625,000
+30% +$5.22M 3.93% 6
2026
Q1 		$13.4M Hold
2,092,106
– – 1.7% 5
2025
Q4 		$6.95M Hold
2,092,106
– – 0.8% 7
2025
Q3 		$4.14M Hold
2,092,106
– – 0.55% 8
2025
Q2 		$3.12M Hold
2,092,106
– – 0.47% 10
2025
Q1 		$3.45M Hold
2,092,106
– – 0.66% 11
2024
Q4 		$7.2M Hold
2,092,106
– – 0.88% 10
2024
Q3 		$93.3M Hold
2,092,106
– – 8.65% 5
2024
Q2 		$37.6M Hold
2,092,106
– – 3.95% 7
2024
Q1 		$35.6M Buy
+2,092,106
New +$28.8M 3.29% 8

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
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
IC
Ikarian Capital Dallas, Texas $928M AUM 596.14% 1-Year Est. Return

Atlas Venture Life Science Advisors's QTTB Position: Q2 2026 in Review

Atlas Venture Life Science Advisors increased its Q32 Bio (QTTB) stake by 30% in Q2 2026, buying an estimated $5.22M and bringing the position to 2,717,106 shares worth $34.6M. The position accounts for 3.93% of the portfolio, ranked #6.

Atlas Venture Life Science Advisors first reported a position in QTTB in Q1 2024 and has held it in 10 quarters since. The position peaked at $93.3M in Q3 2024. 72 funds tracked by Wall St. Rank hold QTTB as of Q2 2026.

  • Atlas Venture Life Science Advisors held 2,717,106 shares of Q32 Bio worth $34.6M as of Q2 2026.
  • Atlas Venture Life Science Advisors bought 625,000 Q32 Bio shares in Q2 2026, an estimated $5.22M.
  • Q32 Bio made up 3.93% of Atlas Venture Life Science Advisors's portfolio in Q2 2026, its #6 holding.
  • Atlas Venture Life Science Advisors first reported a position in Q32 Bio in Q1 2024 and has held it in 10 quarters since.
  • Atlas Venture Life Science Advisors's Q32 Bio position peaked at $93.3M in Q3 2024.
  • 72 funds tracked by Wall St. Rank held Q32 Bio as of Q2 2026.

Based on Atlas Venture Life Science Advisors's 13F filing for Q2 2026, filed 13 Aug 2026.