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SITE · SiteOne Landscape Supply, Inc. · Holdings

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$92.82 -1.96 (-2.07%) At close · Sep 11
Market Cap
$4.11B
Shares
44.31M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 392
Total Value: $5,378,821,924
Total Shares: 47,013,567
Showing 1–100 of 399 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 392 13F filers · Δ vs Mar 31, 2026
Top Holder
9.5%
Sep 2023 → Jun 2026 · range 9.1% – 13.2%
+0.4 pts
Top 5
26.8%
Sep 2023 → Jun 2026 · range 26.8% – 41.1%
−0.5 pts
Top 10
43.5%
Sep 2023 → Jun 2026 · range 43.5% – 53.3%
−1.3 pts
HHI
278
Sep 2023 → Jun 2026 · range 278 – 446
Broadly held−1

Quarterly Activity

vs Mar 31, 2026
New
63
Increased
112
Decreased
166
Sold Out
99
Unchanged
51
Holder count: -36
Institutional value: -18.1%
Shares held: -4.7%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 399
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1650729 CUSIP 82982L103 13F (30d) 104 filings 104 filers Visit website Investor relations