PEAK6’s Pfizer PFE Stock Holding History

PEAK6’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
2026 Q2	$12.8M	Buy	+533,500	New	+$14M	0.03%	476
2026 Q1	–	Sell	-43,600	Closed	-$1.09M	–	3165
2025 Q4	$1.09M	Buy	43,600 +3,900	+10%	+$98.3K	﹤0.01%	1731
2025 Q3	$1.01M	Buy	39,700 +4,700	+13%	+$116K	﹤0.01%	1838
2025 Q2	$848K	Sell	35,000 -50,000	-59%	-$1.17M	﹤0.01%	1892
2025 Q1	$2.15M	Buy	85,000 +41,900	+97%	+$1.1M	﹤0.01%	1378
2024 Q4	$1.14M	Buy	+43,100	New	+$1.17M	﹤0.01%	1746

Other funds holding PFE

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Fisher Asset Management Camas, Washington $336B AUM 34.66% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

PEAK6's PFE Position: Q2 2026 in Review

PEAK6 opened a new position in Pfizer (PFE) in Q2 2026: 75,818 shares worth $1.83M. The stake represents ﹤0.01% of the portfolio and ranks #1375 among its holdings. This is a return to the name: PEAK6 previously reported a position in PFE as recently as Q4 2025.

PEAK6 first reported a position in PFE in Q4 2024 and has held it in 6 quarters since. 2,841 funds tracked by Wall St. Rank hold PFE as of Q2 2026.

PEAK6 held 75,818 shares of Pfizer worth $1.83M as of Q2 2026.
Pfizer was a new PEAK6 position in Q2 2026.
Pfizer made up ﹤0.01% of PEAK6's portfolio in Q2 2026, its #1375 holding.
PEAK6 first reported a position in Pfizer in Q4 2024 and has held it in 6 quarters since.
2,841 funds tracked by Wall St. Rank held Pfizer as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.