William Blair & Company
PFE icon

William Blair & Company’s Pfizer PFE Stock Holding History

William Blair & Company’s Portfolio PFE Stock Details PFE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2017
Q3 		– Sell
-1,054
Closed -$34K – 1472
2017
Q2 		$34K Buy
+1,054
New +$33.2K ﹤0.01% 1495

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State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Fisher Asset Management
Fisher Asset Management Camas, Washington $295B AUM 31.6% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return
State Farm Mutual Automobile Insurance
State Farm Mutual Automobile Insurance Bloomington, Illinois $127B AUM 32.55% 1-Year Est. Return

William Blair & Company's PFE Position: Q1 2026 in Review

William Blair & Company reduced its Pfizer (PFE) stake by 0.91% in Q1 2026, selling an estimated $335K and leaving 1,370,097 shares worth $38.5M. The position accounts for 0.11% of the portfolio, ranked #167.

William Blair & Company first reported a position in PFE in Q2 2013 and has held it in 52 quarters since. The position peaked at $71.3M in Q4 2021. 2,939 funds tracked by Wall St. Rank hold PFE as of Q1 2026.

  • William Blair & Company held 1,370,097 shares of Pfizer worth $38.5M as of Q1 2026.
  • William Blair & Company sold 12,572 Pfizer shares in Q1 2026, an estimated $335K.
  • Pfizer made up 0.11% of William Blair & Company's portfolio in Q1 2026, its #167 holding.
  • William Blair & Company first reported a position in Pfizer in Q2 2013 and has held it in 52 quarters since.
  • William Blair & Company's Pfizer position peaked at $71.3M in Q4 2021.
  • 2,939 funds tracked by Wall St. Rank held Pfizer as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.