485 institutional investment managers reported SSD positions in their Form 13F filings for Q2 2026, holding 41,061,101 shares worth $8.6B in total. BlackRock, Inc. reported the largest position.

Are funds buying or selling SSD?

In Q2 2026, 70 managers opened new SSD positions, 151 added, 173 trimmed and 43 sold out. Managers that filed in both quarters added a net 173,595 shares.

How current is this SSD institutional ownership data?

It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Funds · SSD

Who owns SSD?

Institutional ownership of Simpson Manufacturing Company Inc. from Form 13F, Q2 2026

485 institutional managers reported holding Simpson Manufacturing Company Inc. (SSD) in Form 13F filings for Q2 2026, with 41,061,101 shares worth $8.6B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters added a net 173,595 shares (+0.4%). 70 opened new positions and 43 sold out.

Funds holding: 485
Value held: $8.6B
New / sold out: 70 / 43
Net shares, same filers: +0.4%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of SSD

Fund	Value	Share of 13F holdings	Shares	Move
BlackRock, Inc.	$862M	10.0%	4,118,164	Added
FMR LLC	$768M	8.9%	3,669,547	Added
Kayne Anderson Rudnick Investment Management LLC	$747M	8.7%	3,568,049	Trimmed
Vanguard Portfolio Management LLC	$403M	4.7%	1,924,650	Trimmed
Vanguard Capital Management LLC	$388M	4.5%	1,854,556	Trimmed
State Street Corp	$274M	3.2%	1,308,394	Added
Morgan Stanley	$251M	2.9%	1,201,143	Trimmed
Baker Avenue Asset Management, LP	$191M	2.2%	914,514	Unchanged
Dimensional Fund Advisors LP	$186M	2.2%	887,760	Added
Quantinno Capital Management LP	$180M	2.1%	862,031	Added
ValueAct Holdings, L.P.	$174M	2.0%	830,642	Trimmed
Geode Capital Management, LLC	$164M	1.9%	783,269	Trimmed
Capital International Investors	$136M	1.6%	648,641	Trimmed
Bank of Montreal	$134M	1.6%	642,267	Trimmed
Neuberger Berman Group LLC	$127M	1.5%	606,113	Trimmed
Northern Trust Corp	$126M	1.5%	600,268	Added
First Trust Advisors LP	$122M	1.4%	583,523	Added
Massachusetts Financial Services Co	$116M	1.3%	542,592	Added
JPMorgan Chase & Co	$110M	1.3%	525,383	Trimmed
Maren Capital LLC	$107M	1.2%	513,029	Added
Charles Schwab Investment Management Inc	$105M	1.2%	502,362	Trimmed
Goldman Sachs Group Inc	$94.6M	1.1%	451,848	Added
Victory Capital Management Inc	$92.7M	1.1%	442,833	Added
Norges Bank	$90.9M	1.1%	434,349	New
Fiduciary Management Inc	$84.7M	1.0%	404,809	Trimmed

Share of 13F holdings is each fund's shares as a share of the 41,061,101 SSD shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

FMR LLC Added+$214M
Norges Bank New+$90.9M
Massachusetts Financial Services Co Added+$78.8M
Nomura Asset Management International Inc. New+$39.0M
BNP PARIBAS ASSET MANAGEMENT Holding S.A. Added+$26.8M
Capital World Investors Added+$19.7M
American Century Companies Inc Added+$19.1M
Fivespan Partners, LP New+$18.8M
BlackRock, Inc. Added+$18.1M
Invesco Ltd. Added+$14.6M

Biggest sellers in Q2 2026

ValueAct Holdings, L.P. Trimmed-$119M
Kayne Anderson Rudnick Investment Management LLC Trimmed-$66.4M
Conestoga Capital Advisors, LLC Trimmed-$47.7M
Neuberger Berman Group LLC Trimmed-$32.2M
State Farm Mutual Automobile Insurance Co Sold out-$31.2M
Bessemer Group Inc Trimmed-$27.6M
Adage Capital Partners GP, L.l.c. Sold out-$27.0M
Select Equity Group, L.P. Sold out-$21.0M
Morgan Stanley Trimmed-$20.1M
T. Rowe Price Investment Management, Inc. Trimmed-$20.0M

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $757M and sold $688M; 151 added and 173 trimmed.

Schedule 13D and 13G filings on SSD

Owners of more than 5% must file within days, so these can be newer than the 13F data.

2025-11-05FMR LLC SCHEDULE 13G filed by Simpson Manufacturing Company Inc.Schedule 13G

Questions about SSD ownership

Who owns SSD stock?: 485 institutional investment managers reported SSD positions in their Form 13F filings for Q2 2026, holding 41,061,101 shares worth $8.6B in total. BlackRock, Inc. reported the largest position.
Are funds buying or selling SSD?: In Q2 2026, 70 managers opened new SSD positions, 151 added, 173 trimmed and 43 sold out. Managers that filed in both quarters added a net 173,595 shares.
How current is this SSD institutional ownership data?: It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to SSD by CUSIP. Options are left out. SSD news and filings · SSD insider trades · Top funds