CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in CRBU — Caribou Biosciences, Inc.
CIK 884546
SAN FRANCISCO, CA
Position in CRBU
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,063,319
+$179,871 QoQ
Shares Held
559,642
+0.7% QoQ
Ownership
0.564%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#19
of 137 holders
Holding Since
Sep 2021
19 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in CRBU Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $6,184,692,793 across 287 Biotechnology names. CRBU ranks #200 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
1,920,871 | $857,745,736 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
804,508 | $621,595,061 | |
| 3 | MRNA |
Moderna, Inc.
|
4,734,356 | $240,505,284 | |
| 4 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
673,356 | $222,793,299 | |
| 5 | INSM |
INSMED Inc
|
1,069,390 | $174,866,652 | |
| 6 | RVMD |
Revolution Medicines, Inc.
|
1,735,476 | $168,775,041 | |
| 7 | INCY |
Incyte Corp
|
1,729,102 | $162,743,080 | |
| 8 | BBIO |
BridgeBio Pharma, Inc.
|
1,976,094 | $146,744,740 |
All Filings in CRBU
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,063,319 | 559,642 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $883,448 | 555,628 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $1,301,244 | 558,474 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $667,105 | 529,449 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $663,953 | 727,222 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $1,185,704 | 745,726 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $1,449,478 | 739,530 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $1,018,776 | 621,205 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $4,238,736 | 824,657 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $4,628,459 | 807,759 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $2,829,038 | 591,849 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $1,753,656 | 412,625 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $2,179,484 | 410,449 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $2,542,784 | 404,902 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $4,206,401 | 398,711 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,125,199 | 207,219 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $1,969,523 | 214,545 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $2,150,566 | 142,516 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $3,181,321 | 133,277 | Shares | Sole | 2021-11-16 | |
| No filing history on record for this holder in this stock. | ||||||