P
QTTB icon

Pfizer’s Q32 Bio QTTB Stock Holding History

Pfizer’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 		$737K Sell
101,618
-176,159
-63% -$837K 0.31% 15
2025
Q4 		$922K Hold
277,777
– – 0.39% 14
2025
Q3 		$550K Hold
277,777
– – 0.13% 17
2025
Q2 		$414K Hold
277,777
– – 0.07% 18
2025
Q1 		$458K Hold
277,777
– – 0.09% 18
2024
Q4 		$956K Buy
+277,777
New +$8.77M 0.04% 20

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 $10.6B AUM 11.25% 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 $336M AUM 126.85% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Pfizer's QTTB Position: Q1 2026 in Review

Pfizer reduced its Q32 Bio (QTTB) stake by 63% in Q1 2026, selling an estimated $837K and leaving 101,618 shares worth $737K. The position accounts for 0.31% of the portfolio, ranked #15.

Pfizer first reported a position in QTTB in Q4 2024 and has held it in 6 quarters since. The position peaked at $956K in Q4 2024. 54 funds tracked by Wall St. Rank hold QTTB as of Q1 2026.

  • Pfizer held 101,618 shares of Q32 Bio worth $737K as of Q1 2026.
  • Pfizer sold 176,159 Q32 Bio shares in Q1 2026, an estimated $837K.
  • Q32 Bio made up 0.31% of Pfizer's portfolio in Q1 2026, its #15 holding.
  • Pfizer first reported a position in Q32 Bio in Q4 2024 and has held it in 6 quarters since.
  • Pfizer's Q32 Bio position peaked at $956K in Q4 2024.
  • 54 funds tracked by Wall St. Rank held Q32 Bio as of Q1 2026.

Based on Pfizer's 13F filing for Q1 2026, filed 12 May 2026.