SiteOne Landscape Supply, Inc.
Total Trades
61
Buys
0
Sells
33
Largest Trade
$1M+
Insiders
5
Institutional Funds
335
Inst. Value
$1M+
Activist Filings
20
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| BLACK DOUG | CEO | SELL | $1M+ | 10K | $117.47 | Jun 17, 2022 |
| BLACK DOUG | CEO | SELL | $1M+ | 9K | $128.35 | May 20, 2022 |
| BLACK DOUG | CEO | EXERCISE | $100K–$500K | 20K | $5.50 | May 20, 2022 |
| BLACK DOUG | CEO | SELL | $1M+ | 17K | $149.12 | Apr 14, 2022 |
| BLACK DOUG | CEO | EXERCISE | $100K–$500K | 28K | $5.50 | Apr 14, 2022 |
| BLACK DOUG | CEO | SELL | $1M+ | 17K | $175.78 | Mar 18, 2022 |
| BLACK DOUG | CEO | EXERCISE | $100K–$500K | 28K | $5.50 | Mar 18, 2022 |
| BLACK DOUG | CEO | EXERCISE | $100K–$500K | 28K | $5.50 | Feb 24, 2022 |
| BLACK DOUG | CEO | SELL | $1M+ | 17K | $159.52 | Feb 24, 2022 |
| BLACK DOUG | CEO | SELL | $1M+ | 17K | $195.05 | Jan 21, 2022 |
| BLACK DOUG | CEO | EXERCISE | $100K–$500K | 28K | $5.50 | Jan 21, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 335 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| WASATCH ADVISORS LP | 2.1M | $1M+ | SH |
| Capital World Investors | 1.4M | $1M+ | SH |
| Conestoga Capital Advisors, LLC | 1.1M | $1M+ | SH |
| Impax Asset Management Group plc | 916K | $1M+ | SH |
| STATE STREET CORP | 758K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 699K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 654K | $1M+ | SH |
| Neuberger Berman Group LLC | 597K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 562K | $1M+ | SH |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 475K | $1M+ | SH |
| GENEVA CAPITAL MANAGEMENT LLC | 463K | $1M+ | SH |
| Stephens Investment Management Group LLC | 438K | $1M+ | SH |
| Southpoint Capital Advisors LP | 400K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 394K | $1M+ | SH |
| BROWN ADVISORY INC | 380K | $1M+ | SH |
| Handelsbanken Fonder AB | 371K | $1M+ | SH |
| DF DENT & CO INC | 357K | $1M+ | SH |
| ACK Asset Management LLC | 330K | $1M+ | SH |
| Kinetic Partners Management, LP | 320K | $1M+ | SH |
| Premier Fund Managers Ltd | 278K | $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
6.0%
2.7M shares
T. Rowe Price Associates, Inc.
SC 13G/A · Nov 14, 2025
10.4%
4.7M shares
SC 13G/A · Feb 5, 2025
4.6%
2.1M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Nov 14, 2024
12.6%
5.7M shares
SC 13G/A · Nov 8, 2024
5.7%
2.6M shares
SC 13G/A · Oct 24, 2024
5.7%
2.6M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2024
11.5%
5.2M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.2%
4.1M shares
Kayne Anderson Rudnick Investment Management, LLC 95-4575414
SC 13G/A · Feb 13, 2024
7.5%
3.4M shares
SC 13G · Jan 25, 2024
8.9%
4.0M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G/A · Aug 3, 2023
5.0%
2.2M shares
SC 13G/A · Mar 8, 2023
4.8%
2.2M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2023
12.4%
5.6M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 10, 2023
10.1%
4.6M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 10, 2023
9.9%
4.5M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G/A · Jan 20, 2023
5.5%
2.5M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Apr 11, 2022
10.2%
4.6M shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
9.3%
4.2M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 11, 2022
10.3%
4.6M shares
Baillie Gifford & Co (Scottish partnership)
SC 13G/A · Jan 26, 2022
8.3%
3.7M shares