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MARSHALL WACE, LLP

Position in PFE — Pfizer Inc

CIK 1318757 LONDON, X0

Position in PFE

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$19,321,695
-$432,282,991 QoQ
Shares Held
802,396
-95.0% QoQ
Ownership
0.014%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#298
of 2,820 holders
Holding Since
Mar 2020
23 quarters on record
Voting authority Sole 0% Shared 100% None 0%

Common Shares in PFE Over Time

Shares Held

Position Value (USD)

Derivatives in PFE

reported options exposure · as of Jun 30, 2026
CallValue
$0
CallShares
0
PutValue
$50,568,000
PutShares
2,100,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

MARSHALL WACE, LLP holds $2,303,425,127 across 13 Drug Manufacturers - General names. PFE ranks #9 (0.8% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in PFE

Export CSV
44 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $50,568,000 2,100,000
2026-06-30 $19,321,695 802,396
2026-03-31 $14,040,000 500,000
2026-03-31 $451,604,686 16,082,788
2025-12-31 $44,820,000 1,800,000
2025-12-31 $315,281,658 12,661,914
2025-09-30 $17,239,768 676,600
2025-09-30 $177,832,614 6,979,302
2025-06-30 $10,857,362 447,911
2025-03-31 $357,016,222 14,089,038
2024-12-31 $205,859,268 7,759,490
2024-09-30 $426,292,189 14,730,207
2024-06-30 $150,481,280 5,378,173
2024-03-31 $83,250,000 3,000,000
2023-12-31 $21,111,332 733,287
2023-12-31 $345,480 12,000
2023-09-30 $79,923,048 2,409,498
2023-09-30 $398,040 12,000
2023-06-30 $4,060,476 110,700
2023-06-30 $14,370,819 391,789
2023-06-30 $2,145,780 58,500
2023-03-31 $2,470,766 60,558
2023-03-31 $3,667,920 89,900
2023-03-31 $9,530,880 233,600
2022-12-31 $16,022,748 312,700
2022-12-31 $34,826,494 679,674
2022-12-31 $4,883,172 95,300
2022-09-30 $176,400,366 4,031,087
2022-09-30 $15,543,552 355,200
2022-09-30 $13,578,728 310,300
2022-06-30 $6,732,012 128,400
2022-06-30 $325,227,903 6,203,088
2022-06-30 $12,981,668 247,600
2022-03-31 $122,539,019 2,366,989
2022-03-31 $1,729,118 33,400
2022-03-31 $1,656,640 32,000
2021-12-31 $14,177,905 240,100
2021-12-31 $314,602,515 5,327,731
2021-12-31 $28,397,145 480,900
2021-09-30 $66,647,908 1,549,591
2021-09-30 $4,335,408 100,800
2021-06-30 $1,531,704 39,114
2021-03-31 $30,078,544 830,211
2020-03-31 $14,689,481 450,046