Simpson Manufacturing
SSD · NYSE
Who owns SSD
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 47.2% of SSD’s shares.
- BlackRock Institutional Trust Company, N.A.9.1%
- Kayne Anderson Rudnick Investment Management, LLC8.7%
- Fidelity Management & Research Company LLC8.3%
- Vanguard Portfolio Management, LLC4.7%
- Next 6 largest institutions16.4%
- All other shareholders52.8%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 3.73M | 9.07% |
| Kayne Anderson Rudnick Investment Management, LLC | 3.57M | 8.67% |
| Fidelity Management & Research Company LLC | 3.42M | 8.31% |
| Vanguard Portfolio Management, LLC | 1.92M | 4.68% |
| Vanguard Capital Management, LLC | 1.85M | 4.51% |
| State Street Investment Management (US) | 1.31M | 3.18% |
| Atlanta Capital Management Company, L.L.C. | 925.95K | 2.25% |
| Baker Avenue Asset Management, LP | 914.51K | 2.22% |
| Dimensional Fund Advisors, L.P. | 887.76K | 2.16% |
| Quantinno Capital Management LP | 862.03K | 2.10% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Mid-Cap ETF | 1.44M | 3.50% |
| Vanguard Total Stock Market Index Fund | 1.31M | 3.18% |
| Vanguard Small-Cap Index Fund | 945.27K | 2.30% |
| American Funds SMALLCAP World Fund | 890.56K | 2.16% |
| Virtus KAR Small-Cap Core Fund | 631.40K | 1.53% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $761.78K (2 trades) of SSD on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Olosky Michael | Sale | 3.50K | $605.29K |
| Bullock Nozomi | Other | 22 | $4.18K |
| ANDRASICK JAMES S | Sale | 800 | $156.50K |
| Knight Kenneth D. | Award | 678 | — |
| Banks Chau | Award | 678 | — |
| Drake Angela C | Award | 678 | — |
| Donaldson Philip E | Award | 929 | — |
| FORD CELESTE VOLZ | Award | 678 | — |
| ANDRASICK JAMES S | Award | 678 | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Michael McCaulHouse | Sale | $50K–$100K | Nov 19, 2025 |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.51M
- Days to cover
- 4.40
- % of shares outstanding
- 3.67%
- Average daily volume
- 343.02K
- Change since last report
- +39.3%
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