Simpson Manufacturing Co., Inc.

SSD

Exchange: NYSE
Industry: Cutlery, Handtools & General Hardware
SEC CIK: 0000920371

SEC filings (opens in a new tab)

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.

Q4 2025 vs. Q3 2025

How the institutions holding Simpson Manufacturing Co., Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of SSD: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	437	8	439	+10
Shares	41.3M	714.5K	42.0M	+1.38M (+3.4%)
Value	$6.93B	$136.0M	$6.78B	−$16.9M (−0.2%)

8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (64)

Institutions that held Simpson Manufacturing Co., Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to SSD in Q4 2025
Institution	Shares	Value	% of portfolio
Norges Bank	527,280	$85.1M	0.01%
Select Equity Group, L.P.	159,549	$25.8M	0.12%
Clearbridge Investments, LLC	93,625	$15.1M	0.01%
Renaissance Technologies LLC	21,000	$3.39M	0.01%
Credit Agricole S A	20,863	$3.37M	0.01%
VELA Investment Management, LLC	15,047	$2.43M	0.66%
Westview Management dba Westview Investment Advisors	12,844	$2.07M	0.99%
EP Wealth Advisors, LLC	12,182	$1.97M	0.01%
Lazard Asset Management LLC	10,799	$1.74M	0.00%
Squarepoint Ops LLC	10,435	$1.68M	0.00%
Natixis	7,373	$1.19M	0.00%
CIBC World Markets Corp	6,292	$1.02M	0.01%
Pinnacle Financial Partners, Inc.	5,360	$865.5K	0.01%
MQS Management LLC	4,084	$659.4K	0.39%
Glenmede Trust Co NA	4,035	$651.5K	0.00%
Roundview Capital LLC	3,284	$530.3K	0.03%
Inceptionr LLC	3,069	$495.6K	0.14%
Aquatic Capital Management LLC	3,062	$494.4K	0.01%
Keybank National Association	3,040	$490.9K	0.00%
Cypress Advisory Group LLC	3,000	$484.4K	0.36%
Vestcor Inc	2,391	$386.0K	0.01%
Sequoia Financial Advisors, LLC	2,312	$373.3K	0.00%
Vise Technologies, Inc.	2,108	$340.3K	0.01%
Colony Group, LLC	1,857	$299.9K	0.00%
Argos Wealth Advisors, LLC	1,753	$283.1K	0.08%
Marin Bay Wealth Advisors, LLC	1,739	$280.8K	0.16%
Tannin Capital LLC	1,696	$273.9K	0.24%
Amundi	1,642	$265.1K	0.00%
RMB Capital Management, LLC	1,576	$254.5K	0.00%
North Dakota State Investment Board	1,490	$240.6K	0.01%
HB Wealth Management, LLC	1,461	$235.9K	0.00%
Merit Financial Group, LLC	1,380	$222.8K	0.00%
Scientech Research LLC	1,362	$219.9K	0.14%
Diversified Management Inc	1,271	$205.2K	0.05%
Moody National Bank Trust Division	1,256	$202.8K	0.02%
MidFirst Bank	1,156	$186.7K	0.01%
Rachor Investment Advisory Services, LLC	822	$132.7K	0.07%
CWM Advisors, LLC	651	$105.1K	0.01%
Eurizon Capital SGR S.p.A.	635	$104.6K	0.00%
Kestra Advisory Services, LLC	530	$85.6K	0.00%
Basecamp Wealth Advisors LLC	411	$66.4K	0.01%
SageView Advisory Group, LLC	399	$64.5K	0.00%
Los Angeles Capital Management LLC	183	$32.0K	0.00%
Pinnacle Wealth Planning Services, Inc.	189	$30.5K	0.00%
V-Square Quantitative Management LLC	176	$28.4K	0.00%
Wellington-Altus USA Inc.	146	$23.6K	0.02%
Danske Bank A/S	100	$16.1K	0.00%
National Bank of Canada	99	$16.0K	0.00%
Flagship Harbor Advisors, LLC	71	$11.5K	0.00%
International Assets Investment Management, LLC	48	$7.75K	0.00%
Meramec Financial Planners, LLC	35	$6.80K	0.00%
Rossby Financial, LCC	34	$5.49K	0.00%
Torren Management, LLC	32	$5.17K	0.00%
Activest Wealth Management	12	$1.94K	0.00%
Elyxium Wealth, LLC	11	$1.78K	0.00%
Ares Financial Consulting, LLC	10	$1.61K	0.00%
Signature Equity Partners, LLC	9	$1.45K	0.00%
Kilter Group LLC	5	$808	0.00%
Sunbelt Securities, Inc.	4	$646	0.00%
Wealth Enhancement Trust Services, Inc.	4	$646	0.00%
USA Financial Portformulas Corp	3	$484	0.00%
Keating Financial Advisory Services, Inc.	2	$323	0.00%
Harbour Investments, Inc.	1	$161	0.00%
Dunhill Financial, LLC	1	$143	0.00%

Sold out (54)

Institutions that held Simpson Manufacturing Co., Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of SSD in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Rivulet Capital, LLC	204,300	$34.2M
Fisher Asset Management, LLC	143,661	$24.1M
Interval Partners, LP	53,848	$9.02M
Point72 Asset Management, L.P.	49,583	$8.30M
Wellington Management Group LLP	35,900	$6.01M
Twinbeech Capital LP	25,128	$4.21M
Schonfeld Strategic Advisors LLC	17,001	$2.85M
Engineers Gate Manager LP	15,443	$2.59M
Advantage Alpha Capital Partners LP	14,361	$2.40M
Jackson Square Partners, LLC	12,613	$2.11M
Oddo BHF Asset Management SAS	10,564	$1.77M
Intech Investment Management LLC	9,221	$1.54M
ExodusPoint Capital Management, LP	8,158	$1.37M
Numerai GP LLC	6,378	$1.07M
ISAM Funds (UK) Ltd	5,165	$864.9K
Trexquant Investment LP	4,442	$743.9K
Mirae Asset Global ETFs Holdings Ltd.	3,476	$582.1K
1832 Asset Management L.P.	3,439	$575.9K
Aigen Investment Management, LP	3,074	$514.8K
Walleye Trading LLC	3,067	$513.6K
Cynosure Management, LLC	2,622	$439.1K
Bayesian Capital Management, LP	2,600	$435.4K
Boothbay Fund Management, LLC	2,364	$395.9K
Ethic Inc.	2,160	$361.7K
Riverwater Partners LLC	2,126	$356.0K
XTX Topco Ltd	2,059	$344.8K
Advisors Asset Management, Inc.	2,046	$342.6K
Yorktown Management & Research Co Inc	1,900	$318.2K
Aster Capital Management (DIFC) Ltd	1,774	$297.1K
Coldstream Capital Management Inc	1,629	$272.9K
Landscape Capital Management, L.L.C.	1,544	$258.6K
Genesis Private Wealth, LLC	1,423	$238.3K
DRW Securities, LLC	1,328	$222.3K
Kingsview Wealth Management, LLC	1,220	$204.4K
EntryPoint Capital, LLC	1,216	$203.6K
Blair William & Co	1,208	$202.3K
Harfst & Associates, Inc.	1,198	$200.6K
Ci Investments Inc.	1,097	$184.0K
Harvest Fund Management Co., Ltd	365	$61.0K
Brown Brothers Harriman & Co	204	$34.2K
Principal Securities, Inc.	158	$26.5K
Wealthspire Advisors, LLC	126	$21.1K
Key Financial Inc	120	$20.1K
Rise Advisors, LLC	88	$14.8K
JPL Wealth Management, LLC	80	$13.4K
Hollencrest Capital Management	50	$8.37K
Simplex Trading, LLC	40	$6.00K
Clayton Financial Group LLC	24	$4.02K
Advisory Services Network, LLC	10	$1.67K
Johnson Financial Group, Inc.	6	$1.00K
Transamerica Financial Advisors, Inc.	3	$502
Tortoise Investment Management, LLC	3	$502
North Capital, Inc.	1	$167
Cloud Capital Management, LLC	5	$0

Not filed for Q4 2025 yet (8)

Institutions that held Simpson Manufacturing Co., Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SSD in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Burgundy Asset Management Ltd.	689,900	$131.9M
Point72 Hong Kong Ltd	13,306	$2.23M
Synovus Financial Corp	4,859	$813.7K
Glenmede Investment Management, LP	4,088	$684.6K
Full Sail Capital, LLC	1,219	$204.1K
Point72 Asia (Singapore) Pte. Ltd.	617	$103.3K
Shell Asset Management Co	293	$49.0K
Hemington Wealth Management	226	$37.0K