CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in TWST — Twist Bioscience Corp
CIK 1081019
WEST SACRAMENTO, CA
Position in TWST
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$3,342,936
+$1,492,487 QoQ
Shares Held
70,348
+20.6% QoQ
Ownership
0.112%
of shares outstanding
% of Portfolio
0.00%
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 TWST Over Time
Shares Held
Position Value (USD)
Position in Diagnostics & Research
Healthcare · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $914,594,995 across 29 Diagnostics & Research names. TWST ranks #18 (0.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
|
571,811 | $281,062,260 | |
| 2 | DHR |
Danaher Corp /De/
|
973,686 | $184,610,865 | |
| 3 | IDXX |
Idexx Laboratories Inc /De
|
122,654 | $68,918,056 | |
| 4 | A |
Agilent Technologies, Inc.
|
438,607 | $49,992,425 | |
| 5 | WAT |
Waters Corp /De/
|
154,059 | $45,878,770 | |
| 6 | IQV |
Iqvia Holdings Inc.
|
261,431 | $44,584,442 | |
| 7 | NTRA |
Natera, Inc.
|
197,815 | $39,561,021 | |
| 8 | MTD |
Mettler Toledo International Inc/
|
30,547 | $38,525,876 |
All Filings in TWST
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $3,342,936 | 70,348 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $1,850,449 | 58,337 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,641,828 | 58,345 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $1,993,539 | 54,187 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $2,110,028 | 53,745 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $2,545,068 | 54,768 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $2,486,119 | 55,027 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $2,781,018 | 56,433 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $1,982,328 | 57,777 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $2,229,661 | 60,490 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $1,277,413 | 63,051 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $1,411,064 | 68,967 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $1,029,964 | 68,300 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $1,642,913 | 69,001 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $2,401,887 | 68,158 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $2,488,942 | 71,194 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $3,143,283 | 63,655 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $5,035,999 | 65,073 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $6,777,405 | 63,358 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $8,671,110 | 65,074 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $8,773,870 | 70,837 | Shares | Sole | 2021-05-18 | |
| 2020-12-31 | $7,007,136 | 49,594 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $3,761,958 | 49,519 | Shares | Sole | 2020-11-17 | |
| 2020-06-30 | $2,040,402 | 45,042 | Shares | Sole | 2020-08-17 | |
| 2020-03-31 | $1,215,340 | 39,743 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||