CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in AMPX — Amprius Technologies, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in AMPX
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$2,695,964
+$1,844,397 QoQ
Shares Held
159,903
+48.2% QoQ
Ownership
0.109%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2023
12 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMPX Over Time
Shares Held
Position Value (USD)
Position in Electrical Equipment & Parts
Industrials · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $299,903,581 across 20 Electrical Equipment & Parts names. AMPX ranks #11 (0.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRT |
Vertiv Holdings Co
|
556,351 | $139,410,433 | |
| 2 | BE |
Bloom Energy Corp
|
310,859 | $42,118,285 | |
| 3 | HUBB |
Hubbell Inc
|
81,936 | $40,209,272 | |
| 4 | NVT |
nVent Electric plc
|
186,277 | $22,032,843 | |
| 5 | AEIS |
Advanced Energy Industries Inc
|
44,309 | $14,298,957 | |
| 6 | AYI |
Acuity Inc. (De)
|
35,507 | $9,949,771 | |
| 7 | ENS |
EnerSys
|
43,737 | $7,597,991 | |
| 8 | POWL |
Powell Industries Inc
|
33,813 | $6,098,512 |
All Filings in AMPX
Export CSV
12 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,695,964 | 159,903 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $851,567 | 107,930 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $879,745 | 83,626 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $24,485 | 5,816 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $2,720 | 1,015 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $2,842 | 1,015 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $1,126 | 1,015 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $1,289 | 1,015 | Shares | Sole | 2025-04-08 | |
| 2024-03-31 | $1,682 | 635 | Shares | Sole | 2024-05-16 | |
| 2023-12-31 | $4,761 | 900 | Shares | Sole | 2024-02-13 | |
| 2023-09-30 | $5,621 | 1,186 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $12,845 | 1,789 | Shares | Sole | 2023-08-21 | |
| No filing history on record for this holder in this stock. | ||||||