SiteOne Landscape Supply, Inc. (SITE) has 17 known insider and institutional holders on record. The largest holder is Douglas William W III with 17,934 shares. Other notable holders include WYSZOMIERSKI JACK L and BLACK DOUG.
Over the last 12 months, insiders have made 54 transactions in SITE stock — 17 buys (valued at $3.48M) and 2 sells (valued at $383.69K). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
SITE Insider Ownership
Top Holder
Douglas William W III
17,934 shares
Buys (12 mo)
17
$3.48M value
Sells (12 mo)
2
$383.69K value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Douglas William W Iii |
Director |
17,934 |
2025-05-16 |
|
| 2 |
Wyszomierski Jack L |
Director |
17,934 |
2025-05-16 |
|
| 3 |
Black Doug |
CEO |
13,591 |
2026-02-17 |
|
| 4 |
Guthrie John T |
EVP, CFO and Assistant Sec. |
13,569 |
2025-12-01 |
|
| 5 |
Diaz Fred M |
Director |
11,267 |
2025-09-03 |
|
| 6 |
Dunbar Webster Roy |
Director |
10,485 |
2025-05-16 |
|
| 7 |
Sansone Judith S |
Director |
1,990 |
2025-05-16 |
|
| 8 |
Anker Ross |
EVP, Category Mgmt, Mktg & IT |
1,820 |
2019-05-23 |
|
| 9 |
Isbell Jeri L |
Director |
1,125 |
2025-05-16 |
|
| 10 |
Drake Larisa |
Director |
1,125 |
2025-05-16 |
|
| 11 |
Weller Greg |
EVP of Operations |
625 |
2021-11-03 |
|
| 12 |
Jackson Travis Ryan |
General Counsel & Secretary |
475 |
2026-02-09 |
|
| 13 |
Salmon Scott |
EVP, Strategy & Development |
362 |
2026-02-11 |
|
| 14 |
Versaggi Shannon |
EVP Mktg, Cat. Mgmt. & Pricing |
335 |
2026-02-11 |
|
| 15 |
Ketter Joseph |
EVP, Human Resources |
335 |
2026-02-11 |
|
| 16 |
Brisendine L Briley Jr |
EVP, General Counsel & Sec. |
325 |
2025-02-12 |
|
| 17 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
91 |
2026-02-11 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-02-13 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
Option Exercise |
3,755 |
$26.67 |
$100.15K |
| 2026-02-13 |
Black Doug |
CEO |
Gift (Received) |
10,000 |
- |
- |
| 2026-02-10 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
Option Exercise (Sell) |
72 |
- |
- |
| 2026-02-10 |
Versaggi Shannon |
EVP Mktg, Cat. Mgmt. & Pricing |
Option Exercise (Sell) |
232 |
- |
- |
| 2026-02-10 |
Salmon Scott |
EVP, Strategy & Development |
Option Exercise (Sell) |
278 |
- |
- |
| 2026-02-10 |
Ketter Joseph |
EVP, Human Resources |
Option Exercise (Sell) |
255 |
- |
- |
| 2026-02-10 |
Black Doug |
CEO |
Option Exercise (Sell) |
1,579 |
- |
- |
| 2026-02-09 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
Option Exercise (Sell) |
90 |
- |
- |
| 2026-02-09 |
Versaggi Shannon |
EVP Mktg, Cat. Mgmt. & Pricing |
Option Exercise (Sell) |
334 |
- |
- |
| 2026-02-09 |
Salmon Scott |
EVP, Strategy & Development |
Option Exercise (Sell) |
363 |
- |
- |
| 2026-02-09 |
Ketter Joseph |
EVP, Human Resources |
Option Exercise (Sell) |
334 |
- |
- |
| 2026-02-09 |
Black Doug |
CEO |
Option Exercise (Sell) |
2,009 |
- |
- |
| 2026-02-07 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
Option Exercise (Sell) |
103 |
- |
- |
| 2026-02-07 |
Versaggi Shannon |
EVP Mktg, Cat. Mgmt. & Pricing |
Option Exercise (Sell) |
515 |
- |
- |
| 2026-02-07 |
Salmon Scott |
EVP, Strategy & Development |
Option Exercise (Sell) |
536 |
- |
- |
| 2026-02-07 |
Ketter Joseph |
EVP, Human Resources |
Option Exercise (Sell) |
515 |
- |
- |
| 2026-02-07 |
Black Doug |
CEO |
Option Exercise (Sell) |
3,094 |
- |
- |
| 2026-02-05 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
Option Exercise (Sell) |
167 |
- |
- |
| 2026-02-05 |
Jackson Travis Ryan |
General Counsel & Secretary |
Tax Withholding of RSU |
127 |
$148.03 |
$18.8K |
| 2026-02-05 |
Versaggi Shannon |
EVP Mktg, Cat. Mgmt. & Pricing |
Option Exercise (Sell) |
644 |
- |
- |
| 2026-02-05 |
Salmon Scott |
EVP, Strategy & Development |
Option Exercise (Sell) |
667 |
- |
- |
| 2026-02-05 |
Ketter Joseph |
EVP, Human Resources |
Option Exercise (Sell) |
644 |
- |
- |
| 2026-02-05 |
Black Doug |
CEO |
Option Exercise (Sell) |
3,865 |
- |
- |
| 2026-02-04 |
Elema Eric J |
EVP, CFO and Assistant Sec. |
RSU Award |
2,340 |
- |
- |
| 2026-02-04 |
Jackson Travis Ryan |
General Counsel & Secretary |
RSU Award |
2,173 |
- |
- |
