SIMPSON MFG INC SSD
COM · Common Stock · CUSIP 829073105
US-based construction materials company
- SectorIndustrials
- IndustryCutlery, Handtools & General Hardware
- HeadquartersPleasanton, CA
- Founded1956
- Websitesimpsonmfg.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($24.5m this quarter). Holder counts are more reliable. Shares outstanding: 41.0m as of 2026-08-04, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $209.27. Options: 7 managers hold calls ($9.9m notional), 5 hold puts ($2.6m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 298 |
| Q4 2022 | 304 |
| Q1 2023 | 320 |
| Q2 2023 | 327 |
| Q3 2023 | 363 |
| Q4 2023 | 384 |
| Q1 2024 | 394 |
| Q2 2024 | 399 |
| Q3 2024 | 417 |
| Q4 2024 | 423 |
| Q1 2025 | 429 |
| Q2 2025 | 435 |
| Q3 2025 | 437 |
| Q4 2025 | 440 |
| Q1 2026 | 462 |
| Q2 2026 | 486 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 203 | 197 |
| Q4 2024 | 191 | 198 |
| Q1 2025 | 225 | 185 |
| Q2 2025 | 195 | 228 |
| Q3 2025 | 203 | 211 |
| Q4 2025 | 179 | 224 |
| Q1 2026 | 210 | 201 |
| Q2 2026 | 221 | 222 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $9.8m | $1.4m | 0.14 |
| Q4 2025 | $9.0m | $1.8m | 0.20 |
| Q1 2026 | $7.3m | $1.8m | 0.25 |
| Q2 2026 | $9.9m | $2.6m | 0.26 |
Biggest buyers
| FMR LLC | Added | +1.0m |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Added | +368.8k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | New | +186.4k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Added | +128.1k |
| Capital World Investors | Added | +94.1k |
| AMERICAN CENTURY COMPANIES INC | Added | +91.1k |
| Fivespan Partners, LP | New | +90.0k |
| BlackRock, Inc. | Added | +86.4k |
| Invesco Ltd. | Added | +69.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +50.3k |
Biggest sellers
| ValueAct Holdings, L.P. | Reduced | -567.4k |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | Reduced | -317.4k |
| Conestoga Capital Advisors, LLC | Reduced | -227.9k |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO | Sold out | -181.9k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Sold out | -157.5k |
| NEUBERGER BERMAN GROUP LLC | Reduced | -154.0k |
| BESSEMER GROUP INC | Reduced | -131.7k |
| Select Equity Group, L.P. | Sold out | -122.5k |
| MORGAN STANLEY | Reduced | -96.1k |
| T. Rowe Price Investment Management, Inc. | Reduced | -95.7k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.8m13.3k shares |
| Twin Tree Management, LP | New | $2.6m12.5k shares |
| JANE STREET GROUP, LLC | New | $1.8m8.5k shares |
| CITADEL ADVISORS LLC | Reduced | $1.3m6.4k shares |
| SIMPLEX TRADING, LLC | Added | $983.9k4.7k shares |
| IMC-Chicago, LLC | New | $376.8k1.8k shares |
| Walleye Capital LLC | New | $41.9k200 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.4m6.8k shares |
| CITADEL ADVISORS LLC | New | $523.4k2.5k shares |
| Walleye Capital LLC | New | $230.3k1.1k shares |
| SIMPLEX TRADING, LLC | New | $209.3k1.0k shares |
| JANE STREET GROUP, LLC | New | $209.3k1.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| FMR LLC 13G · institution +2.5 pts · filed 2026-08-06 | 8.9% |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 13G · institution -1.0 pts · filed 2026-08-13 | 8.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 2 | $174.9k | — |
| Q1 2025 | 0 | — | 1 | $170.0k | — |
| Q2 2025 | 0 | — | 2 | $194.2k | — |
| Q3 2025 | 0 | — | 2 | $641.8k | — |
| Q4 2025 | 0 | — | 2 | $501.4k | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 2 | $761.8k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-10 | Olosky Michael President and CEO, director | Sold | $605.3k3.5k shares |
| 2026-08-04 | ANDRASICK JAMES S Director | Sold | $156.5k800 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 4.1m $862.1m | Added +86.4k |
| FMR LLC 0.03% of their portfolio | 3.7m $768.2m | Added +1.0m |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 2.32% of their portfolio | 3.6m $747.0m | Reduced -317.4k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 1.9m $402.9m | Reduced -2.9k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 1.9m $388.3m | Reduced -9.5k |
| STATE STREET CORP 0.01% of their portfolio | 1.3m $273.9m | Added +37.2k |
| MORGAN STANLEY 0.01% of their portfolio | 1.2m $251.5m | Reduced -96.1k |
| Baker Avenue Asset Management, LP 3.64% of their portfolio | 914.5k $191.5m | Reduced -188 |
| DIMENSIONAL FUND ADVISORS LP 0.03% of their portfolio | 887.8k $185.9m | Added +17.3k |
| Quantinno Capital Management LP 0.22% of their portfolio | 862.0k $180.5m | Added +4.1k |
| ValueAct Holdings, L.P. 3.09% of their portfolio | 830.6k $173.9m | Reduced -567.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 783.3k $164.0m | Reduced -4.4k |
| Capital International Investors 0.03% of their portfolio | 648.6k $135.8m | Reduced -14.6k |
| BANK OF MONTREAL /CAN/ 0.05% of their portfolio | 642.3k $134.5m | Reduced -5.7k |
| NEUBERGER BERMAN GROUP LLC 0.08% of their portfolio | 606.1k $126.9m | Reduced -154.0k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 600.3k $125.7m | Added +19.3k |
| FIRST TRUST ADVISORS LP 0.07% of their portfolio | 583.5k $122.2m | Added +1.3k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.04% of their portfolio | 542.6k $115.9m | Added +368.8k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 525.4k $110.3m | Reduced -42.8k |
| Maren Capital LLC 4.98% of their portfolio | 513.0k $107.4m | Added +2.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 502.4k $105.2m | Reduced -4.3k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 451.8k $94.6m | Added +37.6k |
| VICTORY CAPITAL MANAGEMENT INC 0.05% of their portfolio | 442.8k $92.7m | Added +19.2k |
| NORGES BANK 0.01% of their portfolio | 434.3k $90.9m | Not comparable |
| FIDUCIARY MANAGEMENT INC /WI/ 1.21% of their portfolio | 404.8k $84.7m | Reduced -29.4k |
| Port Capital LLC 3.37% of their portfolio | 394.4k $82.6m | Reduced -13.7k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 377.7k $79.1m | Reduced -20.1k |
| Conestoga Capital Advisors, LLC 1.72% of their portfolio | 377.3k $79.0m | Reduced -227.9k |
| SNYDER CAPITAL MANAGEMENT L P 1.09% of their portfolio | 301.5k $63.1m | Reduced -7.6k |
| BROWN ADVISORY INC 0.10% of their portfolio | 296.6k $62.1m | Reduced -7.0k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 282.8k $59.2m | Reduced -13.8k |
| ROYCE & ASSOCIATES LP 0.47% of their portfolio | 277.4k $58.1m | Reduced -8.4k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 270.1k $56.6m | Reduced -53.9k |
| Capital World Investors 0.01% of their portfolio | 267.0k $55.9m | Added +94.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 264.1k $55.3m | Reduced -27.2k |
| Allspring Global Investments Holdings, LLC 0.08% of their portfolio | 263.9k $53.7m | Reduced -40.1k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 259.9k $54.4m | Added +1.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 255.9k $53.6m | Added +50.3k |
| FEDERATED HERMES, INC. 0.07% of their portfolio | 241.3k $50.5m | Reduced -10.2k |
| DISCIPLINED GROWTH INVESTORS INC /MN 0.85% of their portfolio | 240.7k $50.4m | Reduced -901 |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.03% of their portfolio | 230.7k $48.3m | Reduced -16.5k |
| AQR CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 219.1k $45.9m | Added +40.2k |
| Champlain Investment Partners, LLC 1.16% of their portfolio | 214.8k $45.0m | Reduced -39.8k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.03% of their portfolio | 203.5k $42.6m | Added +4.0k |
| GW&K Investment Management, LLC 0.33% of their portfolio | 198.8k $41.6m | Reduced -13.7k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.06% of their portfolio | 186.4k $39.0m | New |
| SEGALL BRYANT & HAMILL, LLC 0.40% of their portfolio | 160.9k $33.7m | Added +10.0k |
| Ranger Investment Management, L.P. 2.01% of their portfolio | 151.8k $31.8m | Reduced -3.1k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 148.0k $31.0m | Reduced -15.2k |
| Cornerstone Capital, Inc. 2.68% of their portfolio | 143.0k $29.9m | Added +37.4k |
| Invesco Ltd. 0.00% of their portfolio | 135.2k $28.3m | Added +69.7k |
| Clearbridge Investments, LLC 0.02% of their portfolio | 133.7k $28.0m | Added +38.9k |
| Gotham Asset Management, LLC 0.06% of their portfolio | 131.1k $27.5m | Added +5.4k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.03% of their portfolio | 128.8k $27.0m | Added +128.1k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 126.3k $26.4m | Reduced -47.1k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 126.2k $26.4m | Added +91.1k |
| RIVERBRIDGE PARTNERS LLC 0.73% of their portfolio | 124.4k $26.0m | Reduced -56.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 124.2k $26.0m | Reduced -4.9k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 109.7k $23.0m | Reduced -35.0k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 106.9k $22.4m | Reduced -2.5k |
| Treasurer of the State of North Carolina 0.06% of their portfolio | 103.7k $21.7m | Added +36.8k |
| ARIEL INVESTMENTS, LLC 0.21% of their portfolio | 99.6k $20.8m | Added +7.8k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 93.4k $19.6m | Added +847 |
| Fivespan Partners, LP 4.44% of their portfolio | 90.0k $18.8m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 88.0k $18.4m | Reduced -2.6k |
| UBS Group AG 0.00% of their portfolio | 85.0k $17.8m | Added +26.1k |
| Swiss National Bank 0.01% of their portfolio | 82.6k $17.3m | Added +500 |
| California Public Employees Retirement System 0.01% of their portfolio | 79.1k $16.6m | Added +5.1k |
| WHITTIER TRUST CO 0.15% of their portfolio | 77.7k $15.3m | Reduced -19.9k |
| Nuveen, LLC 0.00% of their portfolio | 77.6k $16.2m | Added +130 |
| FIFTH THIRD BANCORP 0.03% of their portfolio | 75.7k $15.9m | Reduced -30.3k |
| KENNEDY CAPITAL MANAGEMENT LLC 0.28% of their portfolio | 74.7k $15.6m | Reduced -2.2k |
| North Berkeley Wealth Management, LLC 6.13% of their portfolio | 72.4k $15.2m | Reduced -7.2k |
| DF DENT & CO INC 0.28% of their portfolio | 69.3k $14.5m | Added +634 |
| COOKE & BIELER LP 0.16% of their portfolio | 67.5k $14.1m | Reduced -68.3k |
| River Road Asset Management, LLC 0.16% of their portfolio | 67.4k $14.1m | Reduced -51.6k |
| Robeco Schweiz AG 0.21% of their portfolio | 63.5k $13.3m | Added +19.5k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 60.6k $12.7m | Added +37.9k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 55.9k $11.7m | Reduced -4.2k |
| REGIONS FINANCIAL CORP 0.07% of their portfolio | 55.5k $11.6m | Reduced -4.3k |
| Legal & General Group Plc 0.00% of their portfolio | 54.5k $11.4m | Reduced -1.1k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 53.3k $11.2m | Added +9.5k |
| CITIGROUP INC 0.01% of their portfolio | 53.2k $11.1m | Added +1.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 51.2k $8.8m | Reduced -741 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.10% of their portfolio | 51.1k $10.7m | Added +6.6k |
| Callan Family Office, LLC 0.21% of their portfolio | 51.1k $10.7m | Reduced -1.2k |
| BESSEMER GROUP INC 0.01% of their portfolio | 49.8k $10.4m | Reduced -131.7k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 48.2k $10.1m | Reduced -9.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 47.4k $9.9m | Reduced -166 |
| SG Americas Securities, LLC 0.01% of their portfolio | 47.3k $9.9m | Reduced -8.1k |
| EULAV Asset Management 0.31% of their portfolio | 46.2k $9.7m | Unchanged |
| Ceredex Value Advisors LLC 0.27% of their portfolio | 45.2k $9.5m | Reduced -3.0k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.02% of their portfolio | 43.6k $9.1m | Added +1.1k |
| CHOREO, LLC 0.10% of their portfolio | 43.5k $9.1m | Added +38 |
| Retirement Systems of Alabama 0.03% of their portfolio | 42.5k $8.9m | Reduced -8.3k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 41.9k $8.8m | New |
| BARCLAYS PLC 0.00% of their portfolio | 41.5k $8.7m | Reduced -2.5k |
| WHITTIER TRUST CO OF NEVADA INC 0.15% of their portfolio | 40.8k $7.8m | Reduced -9.9k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 40.7k $8.5m | Reduced -6.1k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.01% of their portfolio | 40.1k $8.4m | Added +1.7k |