Simpson Manufacturing Co.SSD
13F holders, Q1 2026 (March 31)463holders +24
61new positions
36sold out
7famous investors
$171.48avg. 13F price*
At the end of Q1 2026, 463 institutions reported holding Simpson Manufacturing Co. Inc. (SSD) in their 13F filings, up 24 from Q4 2025. 61 opened new positions and 36 sold out. The largest holders were BlackRock, Inc. ($691.9M), Kayne Anderson Rudnick Investment Management LLC ($666.8M) and FMR LLC ($454.2M). 7 famous investors held it, including Mason Morfit (4.2% of ValueAct Capital's portfolio), John W. Rogers Jr. (0.2% of Ariel Investments's portfolio) and Joel Greenblatt (0.1% of Gotham Asset Management's portfolio).
- Company
- Simpson Manufacturing Co. Inc.
- CUSIP
- 829073105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 61 | $33.0M |
| Exits | 36 | $22.7M |
All 13F filers, Q4 2025 → Q1 2026: 1,548,568 shares bought and 2,001,267 shares sold, net −452,699 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 463 holders
| BlackRock, Inc. | 0.01% | Add +0.6% | 4,031,756 | $691.9M |
| Kayne Anderson Rudnick Investment Management LLC | 1.96% | Reduce -3.3% | 3,885,449 | $666.8M |
| FMR LLC | 0.02% | Add +23.5% | 2,646,302 | $454.2M |
| Vanguard Portfolio Management LLC | 0.02% | — | 1,927,556 | $330.8M |
| Vanguard Capital Management LLC | 0.01% | — | 1,864,047 | $319.9M |
| ValueAct Capital | 4.20% | Reduce -5.0% | 1,398,042 | $239.9M |
| Morgan Stanley | 0.01% | Reduce -13.8% | 1,297,261 | $222.6M |
| State Street Corp. | 0.01% | Add +2.2% | 1,271,188 | $218.2M |
| Baker Avenue Asset Management, LP | 3.58% | Reduce -2.8% | 914,702 | $157.0M |
| Dimensional Fund Advisors LP | 0.03% | Reduce -0.9% | 870,425 | $149.4M |
| Quantinno Capital Management LP | 0.25% | Add +0.5% | 857,918 | $147.2M |
| Geode Capital Management, LLC | 0.01% | Add +2.9% | 787,667 | $135.2M |
| Neuberger Berman Group LLC | 0.10% | Add +2.3% | 760,096 | $130.4M |
| Capital International Investors | 0.03% | No change | 663,195 | $113.8M |
| Bank of Montreal | 0.05% | Reduce -4.5% | 648,001 | $111.2M |
| Conestoga Capital Advisors, LLC | 2.07% | Reduce -28.7% | 605,281 | $103.9M |
| First Trust Advisors LP | 0.07% | Add +6.3% | 582,201 | $99.9M |
| Northern Trust Corp. | 0.01% | Add +2.6% | 580,976 | $99.7M |
| JPMorgan Chase & Co. | 0.01% | Reduce -24.2% | 568,213 | $95.0M |
| Maren Capital LLC | 4.58% | Reduce -0.3% | 510,390 | $87.6M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +4.3% | 506,695 | $87.0M |
| Fiduciary Management Inc. | 0.92% | Reduce -4.6% | 434,209 | $74.5M |
| Victory Capital Management Inc. | 0.05% | Add +6.5% | 423,666 | $72.7M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -16.2% | 414,207 | $71.1M |
| Port Capital LLC | 3.11% | Reduce -0.2% | 408,069 | $70.0M |
| Wells Fargo & Company | 0.01% | Reduce -3.4% | 397,844 | $68.3M |
| Raymond James Financial Inc. | 0.02% | Reduce -12.6% | 324,054 | $55.3M |
| Snyder Capital Management L P | 1.03% | Add +2.8% | 309,099 | $53.0M |
| Brown Advisory Inc. | 0.09% | Reduce -7.3% | 303,624 | $52.1M |
| Allspring Global Investments Holdings, LLC | 0.09% | Reduce -6.3% | 304,024 | $52.0M |
| Bank of New York Mellon Corp | 0.01% | Add +1.8% | 296,611 | $50.9M |
| Bank of America Corp. | 0.00% | Add +4.0% | 291,314 | $50.0M |
| Royce & Associates LP | 0.48% | Reduce -1.8% | 285,807 | $49.1M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 258,071 | $44.3M |
| Champlain Investment Partners, LLC | 0.55% | Reduce -19.4% | 254,525 | $43.7M |
| Federated Hermes, Inc. | 0.07% | Reduce -2.1% | 251,443 | $43.2M |
| Disciplined Growth Investors Inc. | 0.85% | Reduce -7.2% | 241,565 | $41.5M |
| Schroder Investment Management Group | 0.03% | Add +56.5% | 247,270 | $41.3M |
| GW&K Investment Management, LLC | 0.32% | Reduce -3.1% | 212,533 | $36.5M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -23.1% | 205,536 | $35.3M |
| Manufacturers Life Insurance Company, The | 0.03% | Reduce -1.9% | 199,543 | $34.2M |
| State Farm Mutual Automobile Insurance Co. | 0.02% | No change | 181,873 | $31.2M |
| Bessemer Group Inc. | 0.05% | Add +2.1% | 181,480 | $31.1M |
| Riverbridge Partners LLC | 0.76% | Reduce -19.3% | 180,977 | $31.1M |
| AQR Capital Management | 0.01% | Add +13.1% | 178,972 | $30.4M |
| Massachusetts Financial Services Co. | 0.01% | Add +9.6% | 173,753 | $29.8M |
| Royal Bank of Canada | 0.01% | Reduce -11.7% | 173,395 | $29.8M |
| Capital World Investors | 0.00% | No change | 172,813 | $29.7M |
| Sei Investments Co. | 0.03% | Add +5.8% | 163,201 | $28.0M |
| Adage Capital Partners Gp, L.L.C. | 0.04% | Add +5.0% | 157,500 | $27.0M |
| Ranger Investment Management, L.P. | 1.92% | Reduce -0.8% | 154,911 | $26.6M |
| Segall Bryant & Hamill, LLC | 0.37% | Reduce -2.3% | 150,936 | $25.9M |
| Ameriprise Financial Inc. | 0.01% | Reduce -47.2% | 144,697 | $24.8M |
| Cooke & Bieler LP | 0.26% | Add +4.7% | 135,834 | $23.3M |
| T. Rowe Price Investment Management, Inc. | 0.02% | Reduce -0.1% | 129,191 | $22.2M |
| Envestnet Asset Management Inc. | 0.01% | Add +1.6% | 129,077 | $22.2M |
| Gotham Asset Management | 0.07% | Add +222.3% | 125,688 | $21.6M |
| Select Equity Group, L.P. | 0.11% | Reduce -23.2% | 122,468 | $21.0M |
| River Road Asset Management, LLC | 0.23% | Reduce -13.8% | 119,002 | $20.4M |
| Rhumbline Advisers | 0.02% | Add +1.1% | 109,389 | $18.8M |
| Fifth Third Bancorp | 0.03% | Add +11911.0% | 106,057 | $18.2M |
| Cornerstone Capital, Inc. | 1.81% | Reduce -0.1% | 105,652 | $18.1M |
| Whittier Trust Co. | 0.18% | Add +10.0% | 97,529 | $16.3M |
| Clearbridge Investments, LLC | 0.01% | Add +1.2% | 94,782 | $16.3M |
| Principal Financial Group Inc. | 0.01% | Add +3.7% | 92,548 | $15.9M |
| Ariel Investments | 0.18% | Add +0.4% | 91,750 | $15.7M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +3.2% | 90,657 | $15.6M |
| D. E. Shaw & Co. | 0.01% | Reduce -18.1% | 82,463 | $14.2M |
| Swiss National Bank | 0.01% | No change | 82,100 | $14.1M |
| Jane Street Group, LLC | 0.01% | Add +21.5% | 80,499 | $13.8M |
| Argent Capital Management LLC | 0.43% | Add +31.5% | 79,773 | $13.7M |
| North Berkeley Wealth Management, LLC | 7.22% | No change | 79,590 | $13.7M |
| Nuveen, LLC | 0.00% | Add +2.7% | 77,461 | $13.3M |
| Kennedy Capital Management LLC | 0.28% | Reduce -1.5% | 76,913 | $13.2M |
| California Public Employees Retirement System | 0.01% | Add +0.1% | 73,996 | $12.7M |
| DF Dent & Co. Inc. | 0.23% | Reduce -4.6% | 68,667 | $11.8M |
| Treasurer of the State of North Carolina | 0.04% | Add +8.0% | 66,867 | $11.5M |
| Invesco Ltd. | 0.00% | Reduce -7.6% | 65,544 | $11.2M |
| State of Wisconsin Investment Board | 0.02% | Reduce -5.0% | 60,091 | $10.3M |
| Regions Financial Corp. | 0.07% | Reduce -7.2% | 59,783 | $10.3M |
| UBS Group AG | 0.00% | Add +34.1% | 58,895 | $10.1M |
| Man Group plc | 0.02% | Reduce -23.4% | 57,566 | $9.9M |
| New York State Teachers Retirement System | 0.02% | Add +1.7% | 57,461 | $9.9M |
| Legal & General Group Plc | 0.00% | Reduce -10.5% | 55,554 | $9.5M |
| SG Americas Securities, LLC | 0.01% | Reduce -11.2% | 55,393 | $9.5M |
| Verition Fund Management LLC | 0.10% | Add +81.5% | 54,946 | $9.4M |
| Callan Family Office, LLC | 0.20% | Add +1.3% | 52,246 | $9.0M |
| Citigroup Inc. | 0.01% | Reduce -3.7% | 51,215 | $8.8M |
| Retirement Systems of Alabama | 0.03% | Add +2.1% | 50,826 | $8.7M |
| Whittier Trust Co. of Nevada Inc. | 0.17% | Add +3.3% | 50,699 | $8.5M |
| Alliancebernstein L.P. | 0.00% | Reduce -0.9% | 51,986 | $8.4M |
| Ceredex Value Advisors LLC | 0.26% | Reduce -20.4% | 48,150 | $8.3M |
| California State Teachers Retirement System | 0.01% | Add +20.3% | 47,538 | $8.2M |
| Stifel Financial Corp. | 0.01% | Reduce -9.4% | 46,828 | $8.0M |
| EULAV Asset Management | 0.25% | Add +4.5% | 46,200 | $7.9M |
| Mutual of America Capital Management LLC | 0.09% | Reduce -3.4% | 44,551 | $7.6M |
| Robeco Schweiz AG | 0.16% | No change | 44,000 | $7.6M |
| Barclays PLC | 0.00% | Reduce -11.8% | 43,976 | $7.5M |
| Marshall Wace, LLP | 0.01% | Add +1453.3% | 43,819 | $7.5M |
| Choreo, LLC | 0.09% | Reduce -0.1% | 43,443 | $7.5M |
"% of holder's portfolio" is SSD's weight in each manager's 13F, not the share of Simpson Manufacturing Co. Inc. the manager owns.