CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in CTKB — Cytek Biosciences, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in CTKB
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$27,801
-$8,745 QoQ
Shares Held
6,362
-12.1% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2021
19 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in CTKB Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $1,106,794,768 across 73 Medical Devices names. CTKB ranks #43 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABT |
Abbott Laboratories
|
2,675,057 | $274,648,102 | |
| 2 | MDT |
Medtronic plc
|
2,038,830 | $176,664,619 | |
| 3 | SYK |
Stryker Corp
|
533,564 | $175,323,794 | |
| 4 | BSX |
Boston Scientific Corp
|
2,299,954 | $144,322,113 | |
| 5 | EW |
Edwards Lifesciences Corp
|
871,700 | $69,805,736 | |
| 6 | GEHC |
GE HealthCare Technologies Inc.
|
706,252 | $50,271,017 | |
| 7 | STE |
STERIS plc
|
171,076 | $37,830,035 | |
| 8 | DXCM |
Dexcom Inc
|
587,561 | $36,898,830 |
All Filings in CTKB
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $27,801 | 6,362 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $36,546 | 7,237 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $30,539 | 8,801 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $357,629 | 105,185 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $421,791 | 105,185 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $682,650 | 105,185 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $588,359 | 106,202 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $609,369 | 109,206 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $736,100 | 109,702 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $1,123,365 | 123,176 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $577,601 | 104,638 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $954,823 | 111,806 | Shares | Sole | 2023-08-21 | |
| 2023-03-31 | $934,503 | 101,687 | Shares | Sole | 2023-05-09 | |
| 2022-12-31 | $1,062,626 | 104,077 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $1,514,423 | 102,882 | Shares | Sole | 2022-11-21 | |
| 2022-06-30 | $1,143,528 | 106,573 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $450,248 | 41,767 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $141,608 | 8,677 | Shares | Sole | 2022-02-15 | |
| 2021-09-30 | $185,774 | 8,677 | Shares | Sole | 2021-11-15 | |
| No filing history on record for this holder in this stock. | ||||||