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Pfizer Inc

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13F filer, CIK 78003, New York, NY

Pfizer Inc reported $238,775,816 across 18 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-12. Its ten largest share positions make up 96.23% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000078003-26-000064

Period
2026-03-31
Reported value
$239M
Holdings
18
Top 10 weight
96.23%
New
1
Sold out
1

Largest buys vs the previous quarter

SecurityShares changeApprox. value
AGMBnew+75,000$814K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
ORICreduced-595,943-$7.19M
CELCreduced-53,754-$5.7M
QTTBreduced-176,159-$1.28M
ANTXexited-715,295-$815K
ZURAreduced-131,109-$777K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q1 2026

Share positions as resolved from 13F-HR 0000078003-26-000064, largest first. % of portfolio is the value over $238,775,816, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
ORICORIC PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 5,376,344 shares; 2025Q1: 5,376,344 shares; 2025Q2: 5,376,344 shares; 2025Q3: 5,376,344 shares; 2025Q4: 5,376,344 shares; 2026Q1: 4,780,401 shares 4,780,401$57.7M24.14%-595,943Timeline
ALLOALLOGENE THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 22,032,040 shares; 2025Q1: 22,032,040 shares; 2025Q2: 22,032,040 shares; 2025Q3: 22,032,040 shares; 2025Q4: 22,032,040 shares; 2026Q1: 22,032,040 shares 22,032,040$49.8M20.85%0Timeline
ARVNARVINAS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 3,457,815 shares; 2025Q1: 3,457,815 shares; 2025Q2: 3,457,815 shares; 2025Q3: 3,457,815 shares; 2025Q4: 3,457,815 shares; 2026Q1: 3,457,815 shares 3,457,815$34.9M14.63%0Timeline
CELCCELCUITY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 349,406 shares; 2025Q1: 349,406 shares; 2025Q2: 349,406 shares; 2025Q3: 349,406 shares; 2025Q4: 349,406 shares; 2026Q1: 295,652 shares 295,652$31.3M13.13%-53,754Timeline
ZURAZURA BIO LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,970,022 shares; 2025Q1: 2,970,022 shares; 2025Q2: 2,970,022 shares; 2025Q3: 2,970,022 shares; 2025Q4: 2,970,022 shares; 2026Q1: 2,838,913 shares 2,838,913$16.8M7.05%-131,109Timeline
WVEWAVE LIFE SCIENCES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 1,875,000 shares; 2025Q1: 1,875,000 shares; 2025Q2: 1,875,000 shares; 2025Q3: 1,875,000 shares; 2025Q4: 1,875,000 shares; 2026Q1: 1,875,000 shares 1,875,000$11.9M5%0Timeline
PYXSPYXIS ONCOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 7,032,770 shares; 2025Q1: 7,032,770 shares; 2025Q2: 7,032,770 shares; 2025Q3: 7,032,770 shares; 2025Q4: 7,032,770 shares; 2026Q1: 7,032,770 shares 7,032,770$9.21M3.86%0Timeline
CRBUCARIBOU BIOSCIENCES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 4,690,431 shares; 2025Q1: 4,690,431 shares; 2025Q2: 4,690,431 shares; 2025Q3: 4,690,431 shares; 2025Q4: 4,690,431 shares; 2026Q1: 4,690,431 shares 4,690,431$8.35M3.5%0Timeline
SPROSPERO THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,362,348 shares; 2025Q1: 2,362,348 shares; 2025Q2: 2,362,348 shares; 2025Q3: 2,362,348 shares; 2025Q4: 2,362,348 shares; 2026Q1: 2,362,348 shares 2,362,348$5.5M2.31%0Timeline
BHVNBIOHAVEN LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 505,645 shares; 2025Q1: 505,645 shares; 2025Q2: 505,645 shares; 2025Q3: 505,645 shares; 2025Q4: 505,645 shares; 2026Q1: 505,645 shares 505,645$4.23M1.77%0Timeline
CRDFCARDIFF ONCOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,411,575 shares; 2025Q1: 2,411,575 shares; 2025Q2: 2,411,575 shares; 2025Q3: 2,411,575 shares; 2025Q4: 2,411,575 shares; 2026Q1: 2,411,575 shares 2,411,575$3.74M1.57%0Timeline
ZNTLZENTALIS PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 953,834 shares; 2025Q1: 953,834 shares; 2025Q2: 953,834 shares; 2025Q3: 953,834 shares; 2025Q4: 953,834 shares; 2026Q1: 953,834 shares 953,834$2M0.84%0Timeline
NXTCNEXTCURE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 157,646 shares; 2025Q4: 157,646 shares; 2026Q1: 153,354 shares 153,354$1.54M0.64%-4,292Timeline
AGMBAGOMAB THERAPEUTICS NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: not reported; 2026Q1: 75,000 shares 75,000$814K0.34%newTimeline
QTTBQ32 BIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 277,777 shares; 2025Q1: 277,777 shares; 2025Q2: 277,777 shares; 2025Q3: 277,777 shares; 2025Q4: 277,777 shares; 2026Q1: 101,618 shares 101,618$737K0.31%-176,159Timeline
BOLTBOLT BIOTHERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 31,305 shares; 2025Q3: 31,305 shares; 2025Q4: 31,305 shares; 2026Q1: 31,305 shares 31,305$137K0.06%0Timeline
DNAGINKGO BIOWORKS HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,928 shares; 2025Q1: 2,928 shares; 2025Q2: 2,928 shares; 2025Q3: 2,928 shares; 2025Q4: 2,928 shares; 2026Q1: 2,928 shares 2,928$17.4K0.01%0Timeline
SENSEONICS HLDGS INCSENSEONICS HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 43,426 shares; 2025Q1: 43,426 shares; 2025Q2: 43,426 shares; 2025Q3: 43,426 shares; 2025Q4: 2,171 shares; 2026Q1: 2,171 shares 2,171$14.2K0.01%0

Sold out in Q1 2026

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
ANTXAN2 THERAPEUTICS INC715,295$815Kshares

How Q1 2026 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0000078003-26-000064 base2026-05-12acceptance time not in the bulk data set