Institutional Manager · CIK 0001726948
Soapstone Management L.P.
BETHESDA, MD · File #028-18586
Latest AUM
$135.7M
Positions
13
Top-10 Concentration
96.6%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | ALAMOS GOLD INC NEW | AGI | +384,594 | +$14.8M | +$1.2M |
| REDUCE | CITIZENS FINL GROUP INC | CIA | -200,000 | -$11.7M | +$2.2M |
| NEW | BALL CORP | BALL | +200,000 | +$10.6M | $0 |
| REDUCE | AMERICAN WTR WKS CO INC NEW | 030420103 | -70,030 | -$9.1M | -$1.3M |
| REDUCE | AMAZON COM INC | AMZN | -26,250 | -$6.1M | +$759,375 |
| REDUCE | CONSTELLIUM SE | CSTM | -319,099 | -$6.0M | +$6.6M |
| EXITED | BECTON DICKINSON & CO | 075887109 | -23,500 | -$4.4M | $0 |
| EXITED | COOPER COS INC | 216648501 | -63,750 | -$4.4M | $0 |
| REDUCE | AGNICO EAGLE MINES LTD | AEM | -15,000 | -$2.5M | +$29,100 |
| NEW | KNIFE RIVER CORP | KNF | +34,071 | +$2.4M | $0 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202513 pos · $135.7M
- 13F HOLDINGS REPORTQ/E Sep 202513 pos · $147.3M
- 13F HOLDINGS REPORTQ/E Jun 202515 pos · $150.7M
- 13F HOLDINGS REPORTQ/E Mar 202514 pos · $128.0M
- 13F HOLDINGS REPORTQ/E Dec 202415 pos · $106.4M
- 13F HOLDINGS REPORTQ/E Sep 202415 pos · $120.3M
- 13F HOLDINGS REPORTQ/E Jun 202418 pos · $149.9M
- 13F HOLDINGS REPORTQ/E Mar 202416 pos · $179.2M
- 13F HOLDINGS REPORTQ/E Dec 202318 pos · $216.3M
Top 13 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ALAMOS GOLD INC NEW | AGI | 695,285 | $26.8M | 19.77% |
| 2 | CONSTELLIUM SE | CSTM | 1,350,000 | $25.4M | 18.75% |
| 3 | PUBLIC STORAGE OPER CO | PSA-PS | 75,000 | $19.5M | 14.34% |
| 4 | CITIZENS FINL GROUP INC | CIA | 225,000 | $13.1M | 9.68% |
| 5 | VAIL RESORTS INC | MTN | 80,000 | $10.6M | 7.83% |
| 6 | BALL CORP | BALL | 200,000 | $10.6M | 7.81% |
| 7 | AMERICAN WTR WKS CO INC NEW | 030420103 | 75,000 | $9.8M | 7.21% |
| 8 | AMAZON COM INC | AMZN | 41,250 | $9.5M | 7.02% |
| 9 | OLIN CORP | OLN | 150,000 | $3.1M | 2.30% |
| 10 | AGNICO EAGLE MINES LTD | AEM | 15,000 | $2.5M | 1.87% |
| 11 | KNIFE RIVER CORP | KNF | 34,071 | $2.4M | 1.77% |
| 12 | BUILDERS FIRSTSOURCE INC | BLDR | 15,000 | $1.5M | 1.14% |
| 13 | NEOGEN CORP | NEOG | 100,000 | $699,000 | 0.52% |