SEC 13F Intelligence

Managers / Q3 2025 · view latest →

Soapstone Management L.P.

CIK 0001726948 · 7500 OLD GEORGETOWN ROAD, SUITE 200, BETHESDA, MD, 20814 · 212-319-1438

Reported Value
$147M
Q3 2025
Positions
13
Filings on Record
30
2019–present window
Filed
Nov 14, 2025
original filing

Summary

Soapstone Management L.P. reported $147M in U.S.-listed holdings across 13 positions for Q3 2025.

Its largest position, Constellium, represents 16.9% of the portfolio.

Compared with Q2 2025, the fund opened 2 new positions and exited 4.

Portfolio Metrics

Turnover
+15.6%
vs prior filed quarter
Top-10 Concentration
+95.8%
share of reported value
Largest Position
+16.9%
Constellium
New / Exited
2 / 4
positions this quarter

Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.

Reported Value by Quarter

13F Reported Value
Q4 ’18: $166MQ4 ’18Q1 ’19: $205MQ2 ’19: $184MQ3 ’19: $184MQ4 ’19: $157MQ4 ’19Q1 ’20: $116MQ2 ’20: $174MQ3 ’20: $204MQ4 ’20: $232MQ4 ’20Q1 ’21: $225MQ2 ’21: $249MQ3 ’21: $238MQ4 ’21: $217MQ4 ’21Q1 ’22: $219MQ2 ’22: $236MQ3 ’22: $256MQ4 ’22: $237MQ4 ’22Q1 ’23: $224MQ2 ’23: $224MQ3 ’23: $216MQ4 ’23: $183MQ4 ’23Q1 ’24: $179MQ2 ’24: $150MQ3 ’24: $120MQ4 ’24: $106MQ4 ’24Q1 ’25: $128MQ2 ’25: $151MQ3 ’25: $147MQ4 ’25: $136MQ4 ’25Q1 ’26: $140Mfilingsflow.com

Portfolio Composition

By security type
Common Stock: 68.4%Other: 16.9%REIT: 14.7%
  • Common Stock · 68.4% · $101M
  • Other · 16.9% · $25M
  • REIT · 14.7% · $22M

Quarter-over-Quarter Changes full breakdown →

vs Q2 2025 (amended baseline)

IssuerMoveShare ΔShares nowValue ΔValue now
BDXBECTON DICKINSON & CONEW+23.5K23.5K+$4M$4M
COOCOOPER COS INCNEW+63.8K63.8K+$4M$4M
SAIASAIA INCSOLD OUT23.8K0$7M$0
LDOSLEIDOS HOLDINGS INCSOLD OUT37.5K0$6M$0
UNHUNITEDHEALTH GROUP INCSOLD OUT8.5K0$3M$0
IQVIQVIA HLDGS INCSOLD OUT5.0K0$787,950$0
AGIALAMOS GOLD INC NEWADDED+91.3K310.7K+$5M$11M
AMZNAMAZON COM INCTRIMMED32.5K67.5K$7M$15M

Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.

Holdings — Q3 2025

13 positions
#IssuerClass% PortfolioValueShares
1CONSTELLIUM SECL A SHS16.86%$25M1.67M
2CFGCITIZENS FINL GROUP INChistory →COM15.34%$23M425.0K
3PSAPUBLIC STORAGE OPER COhistory →COM14.71%$22M75.0K
4AWCAMERICAN WTR WKS CO INC NEWhistory →COM13.70%$20M145.0K
5AMZNAMAZON COM INChistory →COM10.06%$15M67.5K
6MTNVAIL RESORTS INChistory →COM8.43%$12M83.0K
7AGIALAMOS GOLD INC NEWhistory →COM CL A7.35%$11M310.7K
8AEMAGNICO EAGLE MINES LTDhistory →COM3.43%$5M30.0K
9BDXBECTON DICKINSON & COhistory →COM2.99%$4M23.5K
10COOCOOPER COS INChistory →COM2.97%$4M63.8K
11OLNOLIN CORPhistory →COM PAR $12.54%$4M150.0K
12BLDRBUILDERS FIRSTSOURCE INChistory →COM1.23%$2M15.0K
13NEOGNEOGEN CORPCOM0.39%$571,000100.0K

Filing History

QuarterReported ValuePositionsFiledTypeLinks
Q1 2026$140M12May 15, 202613F-HRchanges · EDGAR ↗
Q4 2025$136M13Feb 17, 202613F-HRchanges · EDGAR ↗
Q3 2025$147M13Nov 14, 202513F-HRchanges · EDGAR ↗
Q2 2025$151M15Aug 14, 202513F-HRchanges · EDGAR ↗
Q1 2025$128M14May 15, 202513F-HRchanges · EDGAR ↗
Q4 2024$106M15Feb 14, 202513F-HRchanges · EDGAR ↗
Q3 2024$120M15Nov 14, 202413F-HRchanges · EDGAR ↗
Q2 2024$150M18Aug 14, 202413F-HRchanges · EDGAR ↗
Q1 2024$179M16May 15, 202413F-HRchanges · EDGAR ↗
Q4 2023$183M19Feb 14, 202413F-HRchanges · EDGAR ↗
Q3 2023$216M18Nov 14, 202313F-HRchanges · EDGAR ↗
Q2 2023$224M18Aug 14, 202313F-HRchanges · EDGAR ↗
Q1 2023$224M17May 15, 202313F-HRchanges · EDGAR ↗
Q4 2022$237M18Jan 25, 202313F-HRchanges · EDGAR ↗
Q3 2022$256M21Nov 14, 202213F-HRchanges · EDGAR ↗
Q2 2022$236M18Aug 15, 202213F-HRchanges · EDGAR ↗
Q1 2022$219M15May 6, 202213F-HRchanges · EDGAR ↗
Q4 2021$217M18Feb 14, 202213F-HRchanges · EDGAR ↗
Q3 2021$238M17Nov 15, 202113F-HRchanges · EDGAR ↗
Q2 2021$249M20Aug 16, 202113F-HRchanges · EDGAR ↗
Q1 2021$225M19May 17, 202113F-HRchanges · EDGAR ↗
Q4 2020$232M20Feb 16, 202113F-HRchanges · EDGAR ↗
Q3 2020$204M20Nov 16, 202013F-HRchanges · EDGAR ↗
Q2 2020$174M17Aug 14, 202013F-HRchanges · EDGAR ↗
Q1 2020$116M15May 15, 202013F-HRchanges · EDGAR ↗
Q4 2019$157M16Feb 14, 202013F-HRchanges · EDGAR ↗
Q3 2019$184M17Nov 14, 201913F-HRchanges · EDGAR ↗
Q2 2019$184M18Aug 14, 201913F-HRchanges · EDGAR ↗
Q1 2019$205M19May 15, 201913F-HRchanges · EDGAR ↗
Q4 2018$166M21Feb 14, 201913F-HRchanges · EDGAR ↗

13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.