Simpson Manufacturing Co., Inc.
Total Trades
45
Buys
0
Sells
44
Largest Trade
N/A
Insiders
10
Institutional Funds
379
Inst. Value
$1M+
Activist Filings
14
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Donaldson Philip E | Director | SELL | $100K–$500K | 2K | $168.16 | Dec 15, 2025 |
| ANDRASICK JAMES S | Director | SELL | $100K–$500K | 600 | $170.00 | Nov 12, 2025 |
| Andersen Michael | EVP, Europe | SELL | $100K–$500K | 1K | $196.13 | Aug 27, 2025 |
| ANDRASICK JAMES S | Director | SELL | $100K–$500K | 866 | $165.38 | May 15, 2025 |
| Lutz Jennifer | EVP, Human Resources | SELL | $50K–$100K | 330 | $154.45 | May 5, 2025 |
| Andersen Michael | EVP, Europe | SELL | $100K–$500K | 1K | $169.98 | Feb 27, 2025 |
| ANDRASICK JAMES S | Director | SELL | $50K–$100K | 500 | $178.75 | Aug 29, 2024 |
| Andersen Michael | EVP, Europe | SELL | $100K–$500K | 2K | $187.46 | Aug 27, 2024 |
| Olosky Michael | President and CEO | SELL | $1M+ | 7K | $187.41 | Aug 27, 2024 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 850 | $198.08 | Mar 22, 2024 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 850 | $190.83 | Feb 21, 2024 |
| CHATMAN JENNIFER | Director | SELL | $100K–$500K | 934 | $192.48 | Feb 13, 2024 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 850 | $184.16 | Jan 24, 2024 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 850 | $195.82 | Dec 21, 2023 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 850 | $158.00 | Nov 21, 2023 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 3K | $158.00 | Nov 17, 2023 |
| Dankel Roger | EVP, NA Sales | SELL | $1K–$15K | 40 | $157.88 | Sep 14, 2023 |
| ANDRASICK JAMES S | Director | SELL | $100K–$500K | 1K | $156.07 | Aug 8, 2023 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 3K | $155.00 | Aug 8, 2023 |
| Donaldson Philip E | Director | SELL | $100K–$500K | 675 | $157.94 | Aug 1, 2023 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 2K | $129.31 | Jun 12, 2023 |
| Swartzendruber Kevin Lee | Senior VP of Finance | SELL | $500K+ | 7K | $130.45 | Jun 12, 2023 |
| Andersen Michael | EVP, Europe | SELL | $100K–$500K | 4K | $122.94 | May 8, 2023 |
| Colonias Karen Winifred | Director | SELL | $1M+ | 9K | $125.35 | Apr 28, 2023 |
| Colonias Karen Winifred | Director | SELL | $1M+ | 15K | $115.76 | Apr 24, 2023 |
| ANDRASICK JAMES S | Director | SELL | $50K–$100K | 900 | $107.04 | Feb 28, 2023 |
| Dankel Roger | EVP, NA Sales | SELL | $100K–$500K | 2K | $112.57 | Feb 17, 2023 |
| Dankel Roger | EVP, NA Sales | GRANT | N/A | 9K | — | Feb 17, 2023 |
| Magstadt Brian J | CFO | SELL | $100K–$500K | 3K | $100.00 | Jan 17, 2023 |
| Colonias Karen Winifred | CEO | SELL | $1M+ | 15K | $90.76 | Dec 20, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 700 | $92.50 | Nov 18, 2022 |
| Magstadt Brian J | CFO | SELL | $100K–$500K | 3K | $100.00 | Aug 12, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $105.00 | Jul 12, 2022 |
| Magstadt Brian J | CFO | SELL | $100K–$500K | 3K | $102.39 | Jul 12, 2022 |
| Magstadt Brian J | CFO | SELL | $100K–$500K | 3K | $107.02 | Jun 14, 2022 |
| Colonias Karen Winifred | CEO | SELL | $1M+ | 15K | $110.46 | Jun 8, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $108.19 | Jun 3, 2022 |
| ANDRASICK JAMES S | Director | SELL | $100K–$500K | 1K | $104.29 | May 10, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $105.00 | May 4, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $109.78 | Apr 5, 2022 |
| ANDRASICK JAMES S | Director | SELL | $50K–$100K | 500 | $117.99 | Mar 14, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $118.48 | Mar 3, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $113.00 | Feb 3, 2022 |
| Magstadt Brian J | CFO | SELL | $100K–$500K | 2K | $127.71 | Jan 19, 2022 |
| Dankel Roger | President | SELL | $50K–$100K | 600 | $138.91 | Jan 5, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 379 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| ValueAct Holdings, L.P. | 1.5M | $1M+ | SH |
| STATE STREET CORP | 1.2M | $1M+ | SH |
| Baker Avenue Asset Management, LP | 941K | $1M+ | SH |
| Conestoga Capital Advisors, LLC | 849K | $1M+ | SH |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 797K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 779K | $1M+ | SH |
| Neuberger Berman Group LLC | 738K | $1M+ | SH |
| Capital International Investors | 663K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 621K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 548K | $1M+ | SH |
| NORGES BANK | 527K | $1M+ | SH |
| Maren Capital LLC | 512K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 486K | $1M+ | SH |
| FIDUCIARY MANAGEMENT INC /WI/ | 455K | $1M+ | SH |
| Port Capital LLC | 409K | $1M+ | SH |
| VICTORY CAPITAL MANAGEMENT INC | 398K | $1M+ | SH |
| Champlain Investment Partners, LLC | 316K | $1M+ | SH |
| SNYDER CAPITAL MANAGEMENT L P | 301K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 291K | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 254K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
Kayne Anderson Rudnick Investment Management, LLC
SC 13G/A · Feb 13, 2026
9.7%
4.0M shares
SC 13G · Nov 5, 2025
5.1%
2.1M shares
SC 13G/A · Nov 8, 2024
9.3%
3.9M shares
SC 13G/A · Oct 21, 2024
9.3%
3.9M shares
The Vanguard Group - 23-1945930
SC 13G/A · Mar 11, 2024
10.0%
4.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.9%
4.2M shares
Kayne Anderson Rudnick Investment Management, LLC 95-4575414
SC 13G/A · Feb 13, 2024
10.9%
4.6M shares
SC 13G/A · Jan 23, 2024
12.3%
5.2M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 14, 2023
10.6%
4.5M shares
SC 13G/A · Jan 23, 2023
11.7%
5.0M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Dec 9, 2022
10.7%
4.5M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 11, 2022
8.7%
3.8M shares
SC 13G/A · Jan 27, 2022
11.2%
4.9M shares
SC 13G/A · Jan 25, 2022
11.2%
4.9M shares