Position in SPRO
as of Jun 30, 2026
· filed Aug 13, 2026
Position Value
$5,220,789
-$307,105 QoQ
Shares Held
2,362,348
0.0% QoQ
Ownership
4.06%
of shares outstanding
% of Portfolio
2.99%
of 13F equity value
Holder Rank
#2
of 60 holders
Holding Since
Dec 2024
7 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in SPRO Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Jun 30, 2026Pfizer Inc holds $174,606,849 across 15 Biotechnology names. SPRO ranks #8 (3.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ALLO |
Allogene Therapeutics, Inc.
|
22,032,040 | $45,826,643 | |
| 2 | CELC |
Celcuity Inc.
|
295,652 | $30,931,112 | |
| 3 | ARVN |
Arvinas, Inc.
|
3,457,815 | $28,734,442 | |
| 4 | PYXS |
Pyxis Oncology, Inc.
|
7,032,770 | $21,168,637 | |
| 5 | WVE |
Wave Life Sciences, Inc.
|
1,875,000 | $10,893,750 | |
| 6 | CRBU |
Caribou Biosciences, Inc.
|
4,690,431 | $8,255,158 | |
| 7 | BHVN |
Biohaven Ltd.
|
505,645 | $7,523,997 | |
| 8 | SPRO |
Spero Therapeutics, Inc.
This page
|
2,362,348 | $5,220,789 |
All Filings in SPRO
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7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $5,220,789 | 2,362,348 | Shares | Sole | 2026-08-13 | |
| 2026-03-31 | $5,527,894 | 2,362,348 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $5,504,270 | 2,362,348 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $4,441,214 | 2,362,348 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $6,850,809 | 2,362,348 | Shares | Sole | 2025-08-11 | |
| 2025-03-31 | $1,700,890 | 2,362,348 | Shares | Sole | 2025-05-13 | |
| 2024-12-31 | $2,433,218 | 2,362,348 | Shares | Sole | 2025-02-14 | |
| No filing history on record for this holder in this stock. | ||||||