Position in ARQ
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$178,624
-$148,353 QoQ
Shares Held
69,775
-30.2% QoQ
Ownership
0.163%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#29
of 95 holders
Holding Since
Mar 2020
18 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, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $260,025,688 across 6 Pollution & Treatment Controls names. ARQ ranks #6 (0.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VLTO |
Veralto Corp
|
1,603,336 | $141,766,969 | |
| 2 | ZWS |
Zurn Elkay Water Solutions Corp
|
2,085,932 | $93,533,190 | |
| 3 | CECO |
Ceco Environmental Corp
|
247,499 | $14,745,990 | |
| 4 | PCT |
PureCycle Technologies, Inc.
|
1,051,608 | $5,457,845 | |
| 5 | ERII |
Energy Recovery, Inc.
|
431,288 | $4,343,070 | |
| 6 | ARQ |
Arq, Inc.
This page
|
69,775 | $178,624 |
All Filings in ARQ
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $178,624 | 69,775 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $326,977 | 99,993 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $635,922 | 88,816 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $503,174 | 93,701 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $332,123 | 79,646 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $602,920 | 79,646 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $415,226 | 70,737 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $429,373 | 70,737 | Shares | Sole | 2024-08-12 | |
| 2022-06-30 | $215,674 | 45,986 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $294,069 | 47,278 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $312,980 | 47,278 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $302,106 | 47,278 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $350,329 | 47,278 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $223,338 | 40,607 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $223,338 | 40,607 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $164,864 | 40,607 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $196,943 | 40,607 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $266,787 | 40,607 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||