Position in CERS
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$18,215,187
-$2,402,003 QoQ
Shares Held
10,008,345
0.0% QoQ
Ownership
4.99%
of shares outstanding
% of Portfolio
0.11%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CERS Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026BAKER BROS. ADVISORS LP holds $29,376,472 across 2 Medical Devices names. CERS ranks #1 (62.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CERS |
Cerus Corp
This page
|
10,008,345 | $18,215,187 | |
| 2 | SERA |
Sera Prognostics, Inc.
|
5,498,170 | $11,161,285 |
All Filings in CERS
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25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $18,215,187 | 10,008,345 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $20,617,190 | 10,008,345 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $15,913,268 | 10,008,345 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $18,166,220 | 12,883,844 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $26,898,010 | 19,351,087 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $29,995,102 | 19,477,339 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $33,890,569 | 19,477,339 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $34,280,116 | 19,477,339 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $36,812,170 | 19,477,339 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $42,071,052 | 19,477,339 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $27,927,991 | 17,239,501 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $39,526,192 | 16,067,558 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $47,720,647 | 16,067,558 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $58,646,586 | 16,067,558 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $57,843,208 | 16,067,558 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $84,997,381 | 16,067,558 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $75,285,440 | 13,713,195 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $93,386,857 | 13,713,195 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $83,513,357 | 13,713,195 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $81,044,982 | 13,713,195 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $82,416,301 | 13,713,195 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $94,895,309 | 13,713,195 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $85,844,600 | 13,713,195 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $90,507,087 | 13,713,195 | Shares | Sole | 2020-08-14 | |
| 2020-03-31 | $63,766,356 | 13,713,195 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||