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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.

13F holders, Q3 2025

Institutional positions in Simpson Manufacturing Co., Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
437
+11 vs. Q2 2025
Shares held
41.3M
−989.7K (−2.3%) vs. Q2 2025
Total value
$6.93B
+$363.0M (+5.5%) vs. Q2 2025
New holders
56
147 more added
Sold out
45
167 more reduced

7 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting SSD on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 437 institutions
Q1 2021: 302 institutionsQ2 2021: 288 institutionsQ3 2021: 293 institutionsQ4 2021: 302 institutionsQ1 2022: 310 institutionsQ2 2022: 301 institutionsQ3 2022: 298 institutionsQ4 2022: 304 institutionsQ1 2023: 320 institutionsQ2 2023: 326 institutionsQ3 2023: 362 institutionsQ4 2023: 383 institutionsQ1 2024: 393 institutionsQ2 2024: 397 institutionsQ3 2024: 415 institutionsQ4 2024: 422 institutionsQ1 2025: 427 institutionsQ2 2025: 433 institutionsQ3 2025: 437 institutionsQ4 2025: 439 institutionsQ1 2026: 463 institutionsQ2 2026: 488 institutions
Value heldQ3 2025: $6.93B
Q1 2021: $3.99BQ2 2021: $4.25BQ3 2021: $4.14BQ4 2021: $5.51BQ1 2022: $4.22BQ2 2022: $3.91BQ3 2022: $3.02BQ4 2022: $3.39BQ1 2023: $4.25BQ2 2023: $5.31BQ3 2023: $5.79BQ4 2023: $7.86BQ1 2024: $8.21BQ2 2024: $6.96BQ3 2024: $7.79BQ4 2024: $6.87BQ1 2025: $6.55BQ2 2025: $6.65BQ3 2025: $6.93BQ4 2025: $6.78BQ1 2026: $7.02BQ2 2026: $8.59B
Institutions holding SSD and their total value by quarter
QuarterHoldersValue
Q2 2026488$8.59B
Q1 2026463$7.02B
Q4 2025439$6.78B
Q3 2025437$6.93B
Q2 2025433$6.65B
Q1 2025427$6.55B
Q4 2024422$6.87B
Q3 2024415$7.79B
Q2 2024397$6.96B
Q1 2024393$8.21B
Q4 2023383$7.86B
Q3 2023362$5.79B
Q2 2023326$5.31B
Q1 2023320$4.25B
Q4 2022304$3.39B
Q3 2022298$3.02B
Q2 2022301$3.91B
Q1 2022310$4.22B
Q4 2021302$5.51B
Q3 2021293$4.14B
Q2 2021288$4.25B
Q1 2021302$3.99B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Simpson Manufacturing Co., Inc.; share changes are against Q2 2025.

Institutions holding SSD in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Truist Financial Corp17,210$2.88M0.00%+134+0.8%Added
Mercer Global Advisors Inc17,517$2.93M0.00%+1,581+9.9%Added
Janus Henderson Group PLC18,295$3.07M0.00%00.0%Unchanged
South Dakota Investment Council18,436$3.09M0.06%+400+2.2%Added
Police & Firemen's Retirement System of New Jersey18,564$3.11M0.02%+2,651+16.7%Added
Treasurer of the State of North Carolina18,830$3.15M0.01%−736−3.8%Reduced
Amalgamated Bank19,211$3.22M0.02%−114−0.6%Reduced
State of Tennessee, Treasury Department19,344$3.24M0.01%+1,963+11.3%Added
Magnetar Financial LLC19,676$3.29M0.02%+19,676New
New York State Common Retirement Fund19,962$3.34M0.00%+1,500+8.1%Added
Y-Intercept (Hong Kong) Ltd20,081$3.36M0.08%+20,081New
Pathstone Holdings, LLC20,407$3.42M0.01%+1,019+5.3%Added
MetLife Investment Management21,558$3.61M0.02%−1,123−5.0%Reduced
Cerity Partners LLC22,874$3.83M0.01%+2,704+13.4%Added
Baird Financial Group, Inc.24,328$4.07M0.01%−2,812−10.4%Reduced
Natixis Advisors, L.P.24,558$4.11M0.01%+2,367+10.7%Added
Rockefeller Capital Management L.P.24,627$4.12M0.01%−1,188−4.6%Reduced
Twinbeech Capital LP25,128$4.21M0.17%+25,128New
Public Employees Retirement System of Ohio25,293$4.24M0.01%+89+0.4%Added
Wiley Bros.-Aintree Capital, LLC25,973$4.36M0.03%+1,044+4.2%Added
LRT Capital Management, LLC26,529$4.44M2.94%−17,639−39.9%Reduced
Russell Investments Group, Ltd.27,031$4.53M0.01%+3,358+14.2%Added
Teacher Retirement System of Texas28,645$4.80M0.02%−7,256−20.2%Reduced
Alps Advisors Inc28,843$4.83M0.03%+8,706+43.2%Added
American Century Companies Inc28,916$4.84M0.00%+437+1.5%Added
Vestmark Advisory Solutions, Inc.29,220$4.89M0.09%+111+0.4%Added
NewEdge Wealth, LLC29,280$4.97M0.07%+92+0.3%Added
CBOE Vest Financial, LLC30,182$5.05M0.07%+5,356+21.6%Added
Moran Wealth Management, LLC30,916$5.18M0.16%+168+0.5%Added
Captrust Financial Advisors30,962$5.18M0.01%−2,240−6.7%Reduced
Brasada Capital Management, LP31,868$5.39M0.92%+31,868New
AQR Capital Management LLC32,696$5.46M0.00%+25,862+378.4%Added
EULAV Asset Management33,000$5.53M0.13%+33,000New
Rafferty Asset Management, LLC33,651$5.64M0.02%+18,186+117.6%Added
Great West Life Assurance Co33,947$5.69M0.01%+326+1.0%Added
Van Eck Associates Corp34,275$5.74M0.01%+751+2.2%Added
Wellington Management Group LLP35,900$6.01M0.00%−29,159−44.8%Reduced
BNP Paribas Arbitrage, SA35,957$6.02M0.00%+24,808+222.5%Added
Berkeley, Inc38,032$6.37M2.05%−4,217−10.0%Reduced
Citadel Advisors LLC38,277$6.41M0.01%+200+0.5%Added
Castleark Management LLC39,112$6.55M0.18%+39,112New
DekaBank Deutsche Girozentrale39,391$6.57M0.01%00.0%Unchanged
California State Teachers Retirement System39,558$6.62M0.01%+543+1.4%Added
Voloridge Investment Management, LLC41,204$6.90M0.02%−16,869−29.0%Reduced
RSM US Wealth Management LLC43,340$7.26M0.09%+83+0.2%Added
Robeco Schweiz AG44,000$7.37M0.17%00.0%Unchanged
Citigroup Inc44,415$7.44M0.01%+16,881+61.3%Added
Jane Street Group, LLC46,866$7.85M0.01%−3,602−7.1%Reduced
Callan Family Office, LLC48,289$8.09M0.26%−2,309−4.6%Reduced
UBS Group AG49,111$8.22M0.00%−64,303−56.7%Reduced
Whittier Trust Co of Nevada Inc48,390$8.29M0.18%+281+0.6%Added
Mutual of America Capital Management LLC49,559$8.30M0.09%+1,634+3.4%Added
Point72 Asset Management, L.P.49,583$8.30M0.02%−163,953−76.8%Reduced
Retirement Systems of Alabama50,318$8.43M0.03%−806−1.6%Reduced
Alliancebernstein L.P.51,688$8.66M0.00%−3,451−6.3%Reduced
Man Group plc52,951$8.87M0.02%+1,463+2.8%Added
Interval Partners, LP53,848$9.02M0.19%+28,706+114.2%Added
New York State Teachers Retirement System54,580$9.14M0.02%00.0%Unchanged
Stifel Financial Corp54,685$9.16M0.01%−747−1.3%Reduced
Ceredex Value Advisors LLC56,500$9.46M0.22%−24,875−30.6%Reduced
StonePine Asset Management Inc.56,810$9.51M0.06%−1,190−2.1%Reduced
State of Wisconsin Investment Board59,551$9.97M0.02%+5,659+10.5%Added
Potrero Capital Research LLC60,000$10.0M3.05%+60,000New
Barclays PLC61,399$10.3M0.00%−3,504−5.4%Reduced
Kennedy Capital Management, Inc.65,044$10.9M0.24%−2,935−4.3%Reduced
Regions Financial Corp65,860$11.0M0.07%+461+0.7%Added
Invesco Ltd.71,131$11.9M0.00%−8,606−10.8%Reduced
Cooke & Bieler LP72,916$12.2M0.13%+72,916New
DF Dent & Co Inc72,994$12.2M0.16%−28,537−28.1%Reduced
River Road Asset Management, LLC73,650$12.3M0.14%+68,985+1,478.8%Added
Mitsubishi UFJ Trust & Banking Corp73,918$12.4M0.03%+22,398+43.5%Added
California Public Employees Retirement System74,056$12.4M0.01%+888+1.2%Added
Nuveen, LLC76,927$12.9M0.00%−1,896−2.4%Reduced
Legal & General Group Plc77,760$13.0M0.00%−6,148−7.3%Reduced
North Berkeley Wealth Management, LLC79,590$13.3M10.52%00.0%Unchanged
Swiss National Bank81,100$13.6M0.01%+900+1.1%Added
Whittier Trust Co88,764$15.2M0.17%+1,427+1.6%Added
Principal Financial Group Inc92,429$15.5M0.01%−2,469−2.6%Reduced
Ariel Investments, LLC92,850$15.5M0.17%−15,763−14.5%Reduced
Argent Capital Management LLC95,402$16.0M0.44%+95,402New
UBS Asset Management Americas Inc98,023$16.4M0.00%−47,016−32.4%Reduced
Comerica Bank101,486$17.0M0.06%−17,120−14.4%Reduced
Cornerstone Capital, Inc.104,254$17.5M1.71%−812−0.8%Reduced
Rhumbline Advisers111,275$18.6M0.01%−2,233−2.0%Reduced
Ranger Investment Management, L.P.112,720$18.9M1.32%−3,560−3.1%Reduced
D. E. Shaw & Co., Inc.117,868$19.7M0.02%−63,151−34.9%Reduced
SEI Investments Co134,539$22.5M0.02%−1,634−1.2%Reduced
Fisher Asset Management, LLC143,661$24.1M0.01%+7,656+5.6%Added
Segall Bryant & Hamill, LLC144,142$24.1M0.32%−309−0.2%Reduced
Schroder Investment Management Group150,533$25.2M0.02%−10,789−6.7%Reduced
Envestnet Asset Management Inc151,237$25.3M0.01%−17,402−10.3%Reduced
Bessemer Group Inc164,219$27.5M0.04%+28,772+21.2%Added
Capital World Investors172,813$28.9M0.00%+87,135+101.7%Added
Adage Capital Partners GP, L.L.C.175,000$29.3M0.05%+100,000+133.3%Added
State Farm Mutual Automobile Insurance Co181,873$30.5M0.03%00.0%Unchanged
T. Rowe Price Investment Management, Inc.185,653$31.1M0.02%+67,867+57.6%Added
Brown Advisory Inc196,225$32.9M0.04%+39,840+25.5%Added
Rivulet Capital, LLC204,300$34.2M4.01%−59,250−22.5%Reduced
Manufacturers Life Insurance Company, The209,835$35.1M0.03%−133,492−38.9%Reduced
Royal Bank of Canada221,904$37.2M0.01%−54,810−19.8%Reduced