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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; 489 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, Q4 2025

Institutional positions in Simpson Manufacturing Co., Inc. as of Dec 31, 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
439
+10 vs. Q3 2025
Shares held
42.0M
+1.38M (+3.4%) vs. Q3 2025
Total value
$6.78B
−$16.9M (−0.2%) vs. Q3 2025
New holders
64
137 more added
Sold out
54
171 more reduced

8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 439 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: 489 institutions
Value heldQ4 2025: $6.78B
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 2026489$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, Q4 2025

Shares, value and share of portfolio for each institution holding Simpson Manufacturing Co., Inc.; share changes are against Q3 2025.

Institutions holding SSD in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
California State Teachers Retirement System39,528$6.38M0.01%−30−0.1%Reduced
Rafferty Asset Management, LLC39,055$6.31M0.02%+5,404+16.1%Added
Gotham Asset Management, LLC39,002$6.30M0.02%+31,428+414.9%Added
Berkeley, Inc38,781$6.26M1.99%+749+2.0%Added
Teacher Retirement System of Texas35,318$5.70M0.02%+6,673+23.3%Added
Russell Investments Group, Ltd.35,013$5.65M0.01%+7,982+29.5%Added
CBOE Vest Financial, LLC34,978$5.65M0.07%+4,796+15.9%Added
Van Eck Associates Corp34,607$5.59M0.00%+332+1.0%Added
Brasada Capital Management, LP31,797$5.24M0.90%−71−0.2%Reduced
Citadel Advisors LLC31,315$5.06M0.00%−6,962−18.2%Reduced
Moran Wealth Management, LLC30,514$4.93M0.15%−402−1.3%Reduced
Verition Fund Management LLC30,266$4.89M0.03%+22,989+315.9%Added
American Century Companies Inc30,011$4.85M0.00%+1,095+3.8%Added
Vestmark Advisory Solutions, Inc.28,950$4.67M0.06%−270−0.9%Reduced
NewEdge Wealth, LLC27,546$4.45M0.05%−1,734−5.9%Reduced
Alps Advisors Inc27,419$4.43M0.03%−1,424−4.9%Reduced
Wiley Bros.-Aintree Capital, LLC27,412$4.43M0.02%+1,439+5.5%Added
Cerity Partners LLC26,107$4.22M0.01%+3,233+14.1%Added
Rockefeller Capital Management L.P.25,657$4.14M0.01%+1,030+4.2%Added
BNP Paribas Arbitrage, SA25,020$4.04M0.00%−10,937−30.4%Reduced
Public Employees Retirement System of Ohio24,825$4.01M0.01%−468−1.9%Reduced
Pathstone Holdings, LLC24,564$3.97M0.02%+4,157+20.4%Added
Great West Life Assurance Co23,881$3.85M0.01%−10,066−29.7%Reduced
Millennium Management LLC23,177$3.74M0.00%+18,675+414.8%Added
Two Sigma Investments, LP23,024$3.72M0.01%+14,601+173.3%Added
Baird Financial Group, Inc.21,845$3.53M0.01%−2,483−10.2%Reduced
Renaissance Technologies LLC21,000$3.39M0.01%+21,000New
Credit Agricole S A20,863$3.37M0.01%+20,863New
MetLife Investment Management20,431$3.30M0.02%−1,127−5.2%Reduced
New York State Common Retirement Fund19,962$3.22M0.00%00.0%Unchanged
LRT Capital Management, LLC19,592$3.16M2.71%−6,937−26.1%Reduced
Mercer Global Advisors Inc19,290$3.11M0.00%+1,773+10.1%Added
Dark Forest Capital Management LP19,045$3.08M0.14%+5,501+40.6%Added
Amalgamated Bank18,636$3.01M0.02%−575−3.0%Reduced
Janus Henderson Group PLC18,295$2.95M0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey18,093$2.92M0.02%−471−2.5%Reduced
State of Tennessee, Treasury Department15,733$2.78M0.01%−3,611−18.7%Reduced
Natixis Advisors, L.P.17,102$2.76M0.00%−7,456−30.4%Reduced
South Dakota Investment Council17,036$2.75M0.05%−1,400−7.6%Reduced
M&T Bank Corp16,808$2.71M0.01%+1,645+10.8%Added
Universal- Beteiligungs- und Servicegesellschaft mbH16,663$2.70M0.00%−238−1.4%Reduced
Granite Investment Partners, LLC15,527$2.51M0.15%−74−0.5%Reduced
Oppenheimer Asset Management Inc.15,246$2.46M0.03%−1,574−9.4%Reduced
VELA Investment Management, LLC15,047$2.43M0.66%+15,047New
Yousif Capital Management, LLC12,948$2.38M0.03%−214−1.6%Reduced
Atria Investments LLC14,434$2.33M0.03%−1,185−7.6%Reduced
Wealth Enhancement Advisory Services, LLC13,468$2.29M0.00%+1,463+12.2%Added
Mariner, LLC14,174$2.29M0.00%+4,232+42.6%Added
State of New Jersey Common Pension Fund D14,004$2.26M0.01%00.0%Unchanged
Creative Planning13,729$2.22M0.00%+2,175+18.8%Added
State Board of Administration of Florida Retirement System13,331$2.15M0.00%00.0%Unchanged
Westview Management dba Westview Investment Advisors12,844$2.07M0.99%+12,844New
Zurcher Kantonalbank (Zurich Cantonalbank)12,844$2.07M0.00%00.0%Unchanged
Teachers Retirement System of the State of Kentucky12,646$2.04M0.02%00.0%Unchanged
SeaBridge Investment Advisors LLC12,632$2.04M0.34%−33−0.3%Reduced
SkyView Investment Advisors, LLC12,268$1.98M0.25%+77+0.6%Added
EP Wealth Advisors, LLC12,182$1.97M0.01%+12,182New
Handelsbanken Fonder AB11,637$1.88M0.01%00.0%Unchanged
Arizona State Retirement System11,598$1.87M0.01%−779−6.3%Reduced
Louisiana State Employees Retirement System11,500$1.86M0.03%−100−0.9%Reduced
Lazard Asset Management LLC10,799$1.74M0.00%+10,799New
Holocene Advisors, LP10,598$1.71M0.00%−536−4.8%Reduced
Squarepoint Ops LLC10,435$1.68M0.00%+10,435New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys10,375$1.68M0.01%−306−2.9%Reduced
Sanctuary Advisors, LLC10,317$1.67M0.01%−1,107−9.7%Reduced
Resources Investment Advisors, LLC.9,893$1.60M0.02%−235−2.3%Reduced
State of Michigan Retirement System9,827$1.59M0.01%−100−1.0%Reduced
Anchor Capital Advisors LLC9,464$1.53M0.04%+2,137+29.2%Added
HSBC Holdings PLC9,258$1.52M0.00%+143+1.6%Added
Thrivent Financial for Lutherans9,336$1.50M0.00%−225−2.4%Reduced
Northwestern Mutual Investment Management Company, LLC9,275$1.50M0.02%−20.0%Reduced
Hunter Perkins Capital Management, LLC9,198$1.49M0.34%+1,555+20.3%Added
Potrero Capital Research LLC9,141$1.48M0.50%−50,859−84.8%Reduced
KLP Kapitalforvaltning AS8,900$1.44M0.01%−100−1.1%Reduced
Arrowstreet Capital, Limited Partnership8,731$1.41M0.00%−4,177−32.4%Reduced
New Mexico Educational Retirement Board8,700$1.41M0.04%00.0%Unchanged
Oregon Public Employees Retirement Fund8,248$1.33M0.02%−100−1.2%Reduced
We Are One Seven, LLC8,113$1.31M0.03%−121−1.5%Reduced
Franklin Resources Inc8,061$1.30M0.00%−7−0.1%Reduced
LPL Financial LLC7,909$1.28M0.00%−1,299−14.1%Reduced
Ameritas Investment Partners, Inc.7,598$1.23M0.04%−203−2.6%Reduced
Mirador Capital Partners LP7,470$1.21M0.17%−165−2.2%Reduced
Natixis7,373$1.19M0.00%+7,373New
Aristides Capital LLC7,341$1.19M0.41%+5,100+227.6%Added
Captrust Financial Advisors7,238$1.17M0.00%−23,724−76.6%Reduced
CI Private Wealth, LLC7,121$1.15M0.00%+2,038+40.1%Added
Henshaw Capital LLC6,998$1.13M0.04%00.0%Unchanged
BancorpSouth Bank6,848$1.11M0.06%+222+3.4%Added
Diversified Trust Co6,692$1.08M0.02%+1,554+30.2%Added
Impact Capital Partners LLC6,594$1.06M0.32%−579−8.1%Reduced
Susquehanna International Group, LLP6,569$1.06M0.00%−1,366−17.2%Reduced
Meridian Wealth Management, LLC6,484$1.05M0.04%00.0%Unchanged
Curated Wealth Partners LLC6,411$1.04M0.11%+1,473+29.8%Added
Pictet Asset Management Holding SA6,333$1.02M0.00%+308+5.1%Added
CIBC World Markets Corp6,292$1.02M0.01%+6,292New
D.B. Root & Company, LLC6,238$1.01M0.25%−711−10.2%Reduced
HighTower Advisors, LLC6,196$1.00M0.00%−7,518−54.8%Reduced
Transatlantique Private Wealth LLC5,993$967.7K0.30%−33−0.5%Reduced
Y-Intercept (Hong Kong) Ltd5,909$954.1K0.02%−14,172−70.6%Reduced
Truist Financial Corp5,821$940.0K0.00%−11,389−66.2%Reduced