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Pfizer Inc

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13F filer, CIK 78003, New York, NY

Pfizer Inc reported $500,836,847 across 21 holdings for the quarter ended 2025-03-31, in a 13F-HR filed 2025-05-13. Its ten largest share positions make up 96.83% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000078003-25-000118

Period
2025-03-31
Reported value
$501M
Holdings
21
Top 10 weight
96.83%
New
0
Sold out
2

Largest buys vs the previous quarter

SecurityShares changeApprox. value
NEXTCURE INCadded+433,213$208K

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
HLNexited-197,228,952-$1.88B
AKROexited-562,626-$15.7M

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 2025

Share positions as resolved from 13F-HR 0000078003-25-000118, largest first. % of portfolio is the value over $500,836,847, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
BNTXBIONTECH SEQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 3,658,361 shares; 2025Q1: 3,658,361 shares 3,658,361$333M66.51%0Timeline
ALLOALLOGENE THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 22,032,040 shares; 2025Q1: 22,032,040 shares 22,032,040$32.2M6.42%0Timeline
ORICORIC PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 5,376,344 shares; 2025Q1: 5,376,344 shares 5,376,344$30M5.99%0Timeline
ARVNARVINAS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 3,457,815 shares; 2025Q1: 3,457,815 shares 3,457,815$24.3M4.85%0Timeline
Tourmaline Bio IncTourmaline Bio IncQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 1,272,214 shares; 2025Q1: 1,272,214 shares 1,272,214$19.4M3.86%0
WVEWAVE LIFE SCIENCES LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 1,875,000 shares; 2025Q1: 1,875,000 shares 1,875,000$15.2M3.02%0Timeline
BHVNBIOHAVEN LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 505,645 shares; 2025Q1: 505,645 shares 505,645$12.2M2.43%0Timeline
CRDFCARDIFF ONCOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,411,575 shares; 2025Q1: 2,411,575 shares 2,411,575$7.57M1.51%0Timeline
PYXSPYXIS ONCOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 7,032,770 shares; 2025Q1: 7,032,770 shares 7,032,770$6.89M1.38%0Timeline
CRBUCARIBOU BIOSCIENCES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 4,690,431 shares; 2025Q1: 4,690,431 shares 4,690,431$4.28M0.86%0Timeline
ZURAZURA BIO LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,970,022 shares; 2025Q1: 2,970,022 shares 2,970,022$3.83M0.76%0Timeline
CELCCELCUITY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 349,406 shares; 2025Q1: 349,406 shares 349,406$3.53M0.71%0Timeline
ESSA PHARMA INCESSA PHARMA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 1,675,000 shares; 2025Q1: 1,675,000 shares 1,675,000$2.65M0.53%0
SPROSPERO THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,362,348 shares; 2025Q1: 2,362,348 shares 2,362,348$1.7M0.34%0Timeline
ZNTLZENTALIS PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 953,834 shares; 2025Q1: 953,834 shares 953,834$1.52M0.3%0Timeline
ANTXAN2 THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 715,295 shares; 2025Q1: 715,295 shares 715,295$973K0.19%0Timeline
NEXTCURE INCNEXTCURE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 1,458,550 shares; 2025Q1: 1,891,763 shares 1,891,763$909K0.18%+433,213
QTTBQ32 BIO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 277,777 shares; 2025Q1: 277,777 shares 277,777$458K0.09%0Timeline
BOLT BIOTHERAPEUTICS INCBOLT BIOTHERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 626,109 shares; 2025Q1: 626,109 shares 626,109$250K0.05%0
SENSEONICS HLDGS INCSENSEONICS HLDGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 43,426 shares; 2025Q1: 43,426 shares 43,426$28.5K0.01%0
DNAGINKGO BIOWORKS HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q2: restricted; 2023Q3: restricted; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not loaded; 2024Q4: 2,928 shares; 2025Q1: 2,928 shares 2,928$16.7K<0.01%0Timeline

Sold out in Q1 2025

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

SecurityShares beforeValue beforeType
HLNHALEON PLC197,228,952$1.88Bshares
AKROAKERO THERAPEUTICS INC562,626$15.7Mshares

How Q1 2025 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 0000078003-25-000118 base2025-05-13acceptance time not in the bulk data set