CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
PensionPosition in ARQ — Arq, Inc.
CIK 1081019
WEST SACRAMENTO, CA
Position in ARQ
as of Mar 31, 2026
· filed May 18, 2026
Position Value
$4,431
-$1,994 QoQ
Shares Held
1,731
-11.9% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#72
of 95 holders
Holding Since
Mar 2020
13 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in ARQ Over Time
Shares Held
Position Value (USD)
Position in Pollution & Treatment Controls
Industrials · as of Mar 31, 2026CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $47,271,251 across 6 Pollution & Treatment Controls names. ARQ ranks #6 (0.0% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VLTO |
Veralto Corp
|
407,557 | $36,036,189 | |
| 2 | ZWS |
Zurn Elkay Water Solutions Corp
|
172,405 | $7,730,640 | |
| 3 | CECO |
Ceco Environmental Corp
|
34,758 | $2,070,881 | |
| 4 | PCT |
PureCycle Technologies, Inc.
|
181,015 | $939,467 | |
| 5 | ERII |
Energy Recovery, Inc.
|
48,624 | $489,643 | |
| 6 | ARQ |
Arq, Inc.
This page
|
1,731 | $4,431 |
All Filings in ARQ
Export CSV
13 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $4,431 | 1,731 | Shares | Sole | 2026-05-18 | |
| 2025-12-31 | $6,425 | 1,965 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $14,821 | 2,070 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $11,105 | 2,068 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $8,623 | 2,068 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $15,654 | 2,068 | Shares | Sole | 2025-03-18 | |
| 2024-09-30 | $10,513 | 1,791 | Shares | Sole | 2025-04-04 | |
| 2024-06-30 | $10,871 | 1,791 | Shares | Sole | 2025-04-08 | |
| 2021-03-31 | $131,444 | 23,899 | Shares | Sole | 2021-05-18 | |
| 2020-12-31 | $140,970 | 25,631 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $104,061 | 25,631 | Shares | Sole | 2020-11-17 | |
| 2020-06-30 | $124,310 | 25,631 | Shares | Sole | 2020-08-17 | |
| 2020-03-31 | $168,395 | 25,631 | Shares | Sole | 2020-05-13 | |
| No filing history on record for this holder in this stock. | ||||||