Simpson Manufacturing Company (SSD) Superinvestor holders
21 of the superinvestors we track hold Simpson Manufacturing Company (SSD) in their latest 13F filings, $530M in total.
Summary
The largest holder is Mason Morfit (ValueAct Holdings L.P.), with $174M, 3.1% of the portfolio.
In their latest quarter: 4 opened a new position, 8 added, 9 trimmed.
Who holds it
Each investor's latest 13F filing, largest stake first. What a 13F shows.
| Investor | Last change | Shares | Value | % of portfolio | Filed for |
|---|---|---|---|---|---|
| Mason Morfit ValueAct Holdings L.P. |
Trimmed | 830,642 | $174M | 3.1% | Q2 2026 |
| Pat English Fiduciary Management (FMI) |
Trimmed | 404,809 | $85M | 1.2% | Q2 2026 |
| Conestoga Conestoga Capital Advisors |
Trimmed | 307,209 | $52M | 1.6% | Q3 2026 |
| Chuck Royce Royce Investment Partners |
Trimmed | 274,917 | $47M | 0.4% | Q3 2026 |
| Cliff Asness AQR Capital Management |
Added | 219,132 | $46M | 0.0% | Q2 2026 |
| Hersh Cohen ClearBridge Investments |
Added | 133,655 | $28M | 0.0% | Q2 2026 |
| Joel Greenblatt Gotham Asset Management |
Added | 131,126 | $27M | 0.1% | Q2 2026 |
| John Rogers Ariel Investments |
Added | 99,589 | $21M | 0.2% | Q2 2026 |
| Paul Marshall Marshall Wace |
Added | 53,334 | $11M | 0.0% | Q2 2026 |
| Ray Dalio Bridgewater Associates |
New position | 38,770 | $8M | 0.0% | Q2 2026 |
| David Shaw D. E. Shaw & Co. |
Trimmed | 29,857 | $6M | 0.0% | Q2 2026 |
| Man Group Man Group plc |
Trimmed | 25,556 | $5M | 0.0% | Q2 2026 |
| Two Sigma Two Sigma Investments |
Added | 25,312 | $5M | 0.0% | Q2 2026 |
| Paul Tudor Jones Tudor Investment Corp |
New position | 20,511 | $4M | 0.0% | Q2 2026 |
| David Vogel Voloridge Investment Management |
Trimmed | 19,409 | $4M | 0.0% | Q2 2026 |
| Ensign Peak Ensign Peak Advisors |
Added | 8,986 | $2M | 0.0% | Q2 2026 |
| Arrowstreet Capital | Added | 5,408 | $1M | 0.0% | Q2 2026 |
| Jim Simons Renaissance Technologies |
New position | 5,100 | $1M | 0.0% | Q2 2026 |
| Will Nasgovitz Heartland Advisors |
Trimmed | 4,877 | $1M | 0.0% | Q2 2026 |
| Acadian Acadian Asset Management |
New position | 2,714 | $462,000 | 0.0% | Q3 2026 |
| Fred DiSanto Ancora Holdings |
Trimmed | 6 | $1,256 | 0.0% | Q2 2026 |
Holders by quarter
| Quarter | Superinvestors holding it |
|---|---|
| Q2 2026 | 20 |
| Q1 2026 | 20 |
| Q4 2025 | 22 |
| Q3 2025 | 21 |
| Q2 2025 | 22 |
| Q1 2025 | 18 |
| Q4 2024 | 19 |
| Q3 2024 | 19 |
Questions about Simpson Manufacturing Company
Which superinvestors own Simpson Manufacturing Company?
21 of the superinvestors we track hold Simpson Manufacturing Company (SSD) in their latest 13F filings, $530M in total. Mason Morfit, Pat English, Conestoga, Chuck Royce, Cliff Asness, Hersh Cohen.
Who is the largest superinvestor holder of SSD?
The largest holder is Mason Morfit (ValueAct Holdings L.P.), with $174M, 3.1% of the portfolio.
From Simpson Manufacturing Company's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.