CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in AMTM — Amentum Holdings, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in AMTM
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$4,813,194
+$465,746 QoQ
Shares Held
184,555
+23.1% QoQ
Ownership
0.076%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in AMTM Over Time
Shares Held
Position Value (USD)
Position in Specialty Business Services
Industrials · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $216,402,523 across 26 Specialty Business Services names. AMTM ranks #6 (2.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CTAS |
Cintas Corp
|
543,147 | $91,867,883 | |
| 2 | CPRT |
Copart Inc
|
1,309,674 | $43,481,176 | |
| 3 | GPN |
Global Payments Inc
|
399,766 | $26,904,251 | |
| 4 | ARMK |
Aramark
|
305,477 | $12,384,037 | |
| 5 | ULS |
UL Solutions Inc.
|
84,332 | $7,228,095 | |
| 6 | AMTM |
Amentum Holdings, Inc.
This page
|
184,555 | $4,813,194 | |
| 7 | UNF |
Unifirst Corp
|
18,267 | $4,595,794 | |
| 8 | DLB |
Dolby Laboratories, Inc.
|
72,518 | $4,355,431 |
All Filings in AMTM
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,813,194 | 184,555 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $4,347,448 | 149,912 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $3,887,803 | 162,330 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $3,831,832 | 162,297 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $2,387,366 | 131,174 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $2,763,741 | 131,419 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $6,985,382 | 216,601 | Shares | Sole | 2025-04-04 | |
| No filing history on record for this holder in this stock. | ||||||