Key facts
- SSD - Simpson Manufacturing Co., Inc. has 23 insiders with reported activity on this page.
- Net insider value flow over the last year: -$1,143,185.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 23 Insiders of Simpson Manufacturing Co., Inc.
- Symbol
- SSD on NYSE
- Location
- Pleasanton, CA
Change
- Buy value: ; sell value: $1,143,185.
- Net share flow: -6,475.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$1,143,185.
Buys
$0
Shares: 0
Insiders: 0
Sells
$1,143,185
Shares: 6,475
Insiders: 4
Net
-$1,143,185
Shares: -6,475
Insiders: -4
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 2,375 | $0 | $399,380 | -$399,380 |
| 6-9 | 0 | 600 | $0 | $102,000 | -$102,000 |
| 9-12 | 0 | 3,500 | $0 | $641,805 | -$641,805 |
Simpson Manufacturing Co., Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Michael Olosky | President and CEO, Director | $11,473,812 | Mixed | 17 Feb 2026 | ||
| Karen Winifred Colonias | Director | $9,589,395 | Mixed | 25 Apr 2023 | ||
| Brian J. Magstadt | Chief Financial Officer | $5,999,716 | Mixed | 15 Feb 2024 | ||
| Gary M. Cusumano | Director | $4,697,269 | Mixed | 01 May 2024 | ||
| Roger Dankel | EVP, NA Sales | $4,062,468 | Mixed | 10 Dec 2024 | ||
| Jennifer Chatman | Director | $2,817,522 | Filing P/S | 12 Feb 2024 | ||
| Greenway Robin Macgillivray | Director | $2,596,104 | Mixed | 26 Apr 2023 | ||
| Jeremy Gilstrap | EVP, Innovation | $2,502,904 | -$445,675 | -15% | Mixed | 17 Feb 2026 |
| Celeste Volz Ford | Director | $2,421,901 | Median | 06 May 2026 | ||
| Michael Andersen | EVP, Europe | $2,223,139 | -$196,130 | -8.1% | Mixed | 17 Feb 2026 |
| Phillip Burton | EVP, North America | $2,070,662 | Mixed | 17 Feb 2026 | ||
| Kevin Lee Swartzendruber | Senior VP of Finance | $1,372,018 | Mixed | 15 Feb 2024 | ||
| Philip E. Donaldson | Director | $1,203,914 | -$399,380 | -25% | Median | 06 May 2026 |
| James S. Andrasick | Director | $1,116,558 | -$102,000 | -8.4% | Median | 06 May 2026 |
| Udit Mehta | Chief Technology Officer | $1,042,959 | Mixed | 17 Feb 2026 | ||
| Cassandra Payton | EVP, General Counsel | $979,838 | Mixed | 17 Feb 2026 | ||
| Matt Dunn | Chief Financial Officer | $979,629 | Mixed | 17 Feb 2026 | ||
| Kenneth D. Knight | Director | $819,485 | Median | 06 May 2026 | ||
| Jennifer Lutz | EVP, Human Resources | $625,059 | Filing P/S | 01 May 2025 | ||
| Chau Banks | Director | $518,120 | Median | 06 May 2026 | ||
| Felica Coney | Director | $518,120 | Median | 06 May 2026 | ||
| Angela C. Drake | Director | $290,209 | Median | 06 May 2026 | ||
| Nozomi Bullock | EVP, Human Resources | $124,816 | Mixed | 27 Jan 2026 |
Top shareholders of Simpson Manufacturing Co., Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC |
13D/G
13F
|
Company |
9.7%
|
4,017,923
|
$719,368,934 | $0 | 31 Dec 2025 | |
| FMR LLC |
13F
13D/G
|
Company |
5.1%
from 13D/G
|
2,646,302
|
$454,158,436 | — | 31 Mar 2026 | |
| Michael Olosky |
3/4/5
|
President and CEO, Director |
0.13%
|
54,896
|
$11,473,812 | — | 17 Feb 2026 | |
| Celeste Volz Ford |
3/4/5
|
Director |
0.03%
|
14,112
|
$2,421,901 | — | 06 May 2026 | |
| Michael Andersen |
3/4/5
|
EVP, Europe |
0.03%
|
12,417
|
$2,223,139 | -$196,130 | 17 Feb 2026 | |
| Jeremy Gilstrap |
3/4/5
|
EVP, Innovation |
0.03%
|
12,155
|
$2,502,904 | -$445,675 | 17 Feb 2026 | |
| Phillip Burton |
3/4/5
|
EVP, North America |
0.02%
|
9,907
|
$2,070,662 | — | 17 Feb 2026 | |
| Philip E. Donaldson |
3/4/5
|
Director |
0.02%
|
7,015
|
$1,203,914 | -$399,380 | 06 May 2026 | |
| James S. Andrasick |
3/4/5
|
Director |
0.02%
|
6,506
|
$1,116,558 | -$102,000 | 06 May 2026 | |
| Udit Mehta |
3/4/5
|
Chief Technology Officer |
0.01%
|
4,990
|
$1,042,959 | — | 17 Feb 2026 | |
| Kenneth D. Knight |
3/4/5
|
Director |
0.01%
|
4,775
|
$819,485 | — | 06 May 2026 | |
| Cassandra Payton |
3/4/5
|
EVP, General Counsel |
0.01%
|
4,688
|
$979,838 | — | 17 Feb 2026 | |
| Matt Dunn |
3/4/5
|
Chief Financial Officer |
0.01%
|
4,687
|
$979,629 | — | 17 Feb 2026 | |
| Jennifer Lutz |
3/4/5
|
EVP, Human Resources |
0.01%
|
4,047
|
$625,059 | — | 01 May 2025 | |
| Chau Banks |
3/4/5
|
Director |
0.01%
|
3,019
|
$518,120 | — | 06 May 2026 | |
| Felica Coney |
3/4/5
|
Director |
0.01%
|
3,019
|
$518,120 | — | 06 May 2026 | |
| Angela C. Drake |
3/4/5
|
Director |
0%
|
1,691
|
$290,209 | — | 06 May 2026 | |
| Nozomi Bullock |
3/4/5
|
EVP, Human Resources |
0%
|
773
|
$124,816 | — | 27 Jan 2026 | |
| BlackRock, Inc. |
13F
|
Company |
9.7%
|
4,031,756
|
$691,929,947 | — | 31 Mar 2026 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
|
Company |
4.7%
|
1,927,556
|
$330,807,161 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
4.5%
|
1,864,047
|
$319,907,746 | — | 31 Mar 2026 | |
| ValueAct Holdings, L.P. |
13F
|
Company |
3.4%
|
1,398,042
|
$239,931,968 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
3.1%
|
1,297,261
|
$222,636,250 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
3.1%
|
1,271,188
|
$218,161,285 | — | 31 Mar 2026 | |
| Baker Avenue Asset Management, LP |
13F
|
Company |
2.2%
|
914,702
|
$156,981,157 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
2.1%
|
870,425
|
$149,369,726 | — | 31 Mar 2026 | |
| Quantinno Capital Management LP |
13F
|
Company |
2.1%
|
857,918
|
$147,235,926 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
1.9%
|
787,667
|
$135,210,647 | — | 31 Mar 2026 | |
| Neuberger Berman Group LLC |
13F
|
Company |
1.8%
|
760,096
|
$130,447,737 | — | 31 Mar 2026 | |
| Capital International Investors |
13F
|
Company |
1.6%
|
663,195
|
$113,817,526 | — | 31 Mar 2026 | |
| BANK OF MONTREAL /CAN/ |
13F
|
Company |
1.6%
|
648,001
|
$111,209,933 | — | 31 Mar 2026 | |
| Conestoga Capital Advisors, LLC |
13F
|
Company |
1.5%
|
605,281
|
$103,878,373 | — | 31 Mar 2026 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
1.4%
|
582,201
|
$99,917,209 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
1.4%
|
580,976
|
$99,707,101 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
1.4%
|
568,213
|
$94,988,167 | — | 31 Mar 2026 | |
| Maren Capital LLC |
13F
|
Company |
1.2%
|
510,390
|
$87,593,146 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
1.2%
|
506,695
|
$86,958,996 | — | 31 Mar 2026 | |
| FIDUCIARY MANAGEMENT INC /WI/ |
13F
|
Company |
1%
|
434,209
|
$74,518,949 | — | 31 Mar 2026 | |
| VICTORY CAPITAL MANAGEMENT INC |
13F
|
Company |
1%
|
423,666
|
$72,709,559 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
1%
|
414,207
|
$71,086,226 | — | 31 Mar 2026 | |
| Port Capital LLC |
13F
|
Company |
0.99%
|
408,069
|
$70,032,802 | — | 31 Mar 2026 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.96%
|
397,844
|
$68,278,013 | — | 31 Mar 2026 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.78%
|
324,054
|
$55,294,331 | — | 31 Mar 2026 | |
| SNYDER CAPITAL MANAGEMENT L P |
13F
|
Company |
0.75%
|
309,099
|
$53,047,570 | — | 31 Mar 2026 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.73%
|
304,024
|
$52,003,306 | — | 31 Mar 2026 | |
| BROWN ADVISORY INC |
13F
|
Company |
0.73%
|
303,624
|
$52,108,068 | — | 31 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.72%
|
296,611
|
$50,904,411 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
0.7%
|
291,314
|
$49,995,309 | — | 31 Mar 2026 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
0.69%
|
285,807
|
$49,050,197 | — | 31 Mar 2026 | |
| VANGUARD FIDUCIARY TRUST CO |
13F
|
Company |
0.62%
|
258,071
|
$44,290,145 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for Simpson Manufacturing Co., Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Kenneth D. Knight | SSD | Common Stock | Award | 16.6% | 678 | 4,775 | 06 May 2026 | Direct | ||
| Celeste Volz Ford | SSD | Common Stock | Award | 5.05% | 678 | 14,112 | 06 May 2026 | Direct | ||
| Angela C. Drake | SSD | Common Stock | Award | 66.9% | 678 | 1,691 | 06 May 2026 | Direct | ||
| Philip E. Donaldson | SSD | Common Stock | Award | 15.3% | 929 | 7,015 | 06 May 2026 | Direct | ||
| Felica Coney | SSD | Common Stock | Award | 29% | 678 | 3,019 | 06 May 2026 | Direct | ||
| Chau Banks | SSD | Common Stock | Award | 29% | 678 | 3,019 | 06 May 2026 | Direct | ||
| James S. Andrasick | SSD | Common Stock | Award | 370.5% | 678 | 861 | 06 May 2026 | Direct | ||
| Cassandra Payton | SSD | Common Stock | Tax liability | -13.8% | -749 | 4,688 | 17 Feb 2026 | Direct | ||
| Cassandra Payton | SSD | Common Stock | Award | 21.5% | 963 | 5,437 | 17 Feb 2026 | Direct | ||
| Udit Mehta | SSD | Common Stock | Tax liability | -7.18% | -386 | 4,990 | 17 Feb 2026 | Direct | ||
| Jeremy Gilstrap | SSD | Common Stock | Tax liability | -3.69% | -418 | 10,900 | 17 Feb 2026 | Direct | ||
| Jeremy Gilstrap | SSD | Common Stock | Award | 27.6% | 2,449 | 11,318 | 17 Feb 2026 | Direct | ||
| Matt Dunn | SSD | Common Stock | Tax liability | -3.8% | -185 | 4,687 | 17 Feb 2026 | Direct | ||
| Phillip Burton | SSD | Common Stock | Tax liability | -3.36% | -344 | 9,907 | 17 Feb 2026 | Direct | ||
| Phillip Burton | SSD | Common Stock | Award | 46.4% | 3,248 | 10,251 | 17 Feb 2026 | Direct | ||
| Michael Andersen | SSD | Common Stock | Award | 41.2% | 3,624 | 12,417 | 17 Feb 2026 | Direct | ||
| Michael Olosky | SSD | Common Stock | Tax liability | -2.8% | -1,582 | 54,896 | 17 Feb 2026 | Direct | ||
| Michael Olosky | SSD | Common Stock | Award | 43.6% | 17,140 | 56,478 | 17 Feb 2026 | Direct | ||
| Nozomi Bullock | SSD | Common Stock | Award | 773 | 773 | 27 Jan 2026 | Direct | |||
| Matt Dunn | SSD | Common Stock | Award | 121% | 2,667 | 4,872 | 27 Jan 2026 | Direct | ||
| Udit Mehta | SSD | Common Stock | Award | 22% | 970 | 5,376 | 27 Jan 2026 | Direct | ||
| Cassandra Payton | SSD | Common Stock | Award | 44.6% | 1,379 | 4,474 | 27 Jan 2026 | Direct | ||
| Phillip Burton | SSD | Common Stock | Award | 27.6% | 1,515 | 7,003 | 27 Jan 2026 | Direct | ||
| Jeremy Gilstrap | SSD | Common Stock | Award | 13.8% | 1,075 | 8,869 | 27 Jan 2026 | Direct | ||
| Michael Andersen | SSD | Common Stock | Award | 12.6% | 983 | 8,793 | 27 Jan 2026 | Direct | ||
| Michael Olosky | SSD | Common Stock | Award | 31.8% | 9,480 | 39,338 | 27 Jan 2026 | Direct | ||
| Philip E. Donaldson | SSD | Common Stock | Sale | -28.1% | $399,380 | $168.16 | -2,375 | 6,086 | 12 Dec 2025 | Direct |
| James S. Andrasick | SSD | Common Stock | Sale | -76.6% | $102,000 | $170.00 | -600 | 183 | 11 Nov 2025 | Direct |
| Michael Andersen | SSD | Common Stock | Sale | -11.4% | $196,130 | $196.13 | -1,000 | 7,810 | 25 Aug 2025 | Direct |
| Jeremy Gilstrap | SSD | Common Stock | Sale | -24.3% | $445,675 | $178.27 | -2,500 | 7,794 | 01 Aug 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.