Simpson Manufacturing Co., Inc.
SSD- Exchange
- NYSE
- Industry
- Cutlery, Handtools & General Hardware
- SEC CIK
- 0000920371
In the last 90 days, Simpson Manufacturing Co., Inc. insiders filed 0 open-market purchases and 2 sales; 488 institutions reported holding it in 13F filings for Q2 2026, worth $8.59B in total; ValueAct Capital is the only superinvestor holding it.
Superinvestors holding SSD, Q2 2026
1 superinvestor reports holding Simpson Manufacturing Co., Inc. on Form 13F, worth $173.9M in total. Weight is Simpson Manufacturing Co., Inc.'s share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| ValueAct CapitalMason Morfit | 3.1% | 830,642 | $173.9M | Reduced−40.6% |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of SSD each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
1 superinvestor holding at quarter end
- Reduced
- ValueAct Capital (−40.6%)
Q1 2026
1 superinvestor holding at quarter end
- Reduced
- ValueAct Capital (−5.0%)
Q4 2025
1 superinvestor holding at quarter end
- Added
- ValueAct Capital (+21.9%)
Q3 2025
1 superinvestor holding at quarter end
- Reduced
- ValueAct Capital (−14.1%)
Q2 2025
1 superinvestor holding at quarter end
Q3 2021
0 superinvestors holding at quarter end
- Sold out
- Maverick Capital
Q2 2021
1 superinvestor holding at quarter end
- Added
- Maverick Capital (+17.4%)