Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SITE held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 2.5M | $331.0M | -6.8% | 5.612% | 0.97% |
| 2 | AQR CAPITAL MANAGEMENT LLC | 2.3M | $292.8M | +228.7% | 5.130% | 0.13% |
| 3 | WASATCH ADVISORS INC | 2.1M | $282.4M | +1.6% | 4.788% | 1.88% |
| 4 | BlackRock, Inc. | 2.1M | $275.0M | +4.2% | 4.662% | 0.00% |
| 5 | BAMCO INC /NY/ | 2.1M | $274.1M | +1.5% | 4.647% | 0.83% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | $266.9M | — | 4.526% | 0.01% |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.8M | $235.3M | — | 3.990% | 0.01% |
| 8 | Conestoga Capital Advisors, LLC | 1.1M | $147.3M | +2.9% | 2.498% | 2.94% |
| 9 | 59 North Capital Management, LP | 1.0M | $139.7M | -27.9% | 2.369% | 4.17% |
| 10 | Capital World Investors | 961K | $127.9M | -31.5% | 2.169% | 0.02% |
| 11 | Artisan Partners Limited Partnership | 837K | $111.4M | +88.8% | 1.889% | 0.18% |
| 12 | Impax Asset Management Group plc | 824K | $109.7M | -10.0% | 1.861% | 0.76% |
| 13 | DIMENSIONAL FUND ADVISORS LP | 805K | $107.2M | +3.7% | 1.818% | 0.02% |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 786K | $104.6M | +2.5% | 1.773% | 0.01% |
| 15 | STATE STREET CORP | 771K | $102.6M | +1.7% | 1.740% | 0.00% |
| 16 | UBS Group AG | 722K | $96.2M | +222.8% | 1.630% | 0.01% |
| 17 | Amundi | 704K | $93.6M | -0.8% | 1.588% | 0.03% |
| 18 | AMERIPRISE FINANCIAL INC | 671K | $89.3M | +19.7% | 1.513% | 0.02% |
| 19 | CITADEL ADVISORS LLC | 636K | $84.6M | -20.9% | 1.435% | 0.04% |
| 20 | GENEVA CAPITAL MANAGEMENT LLC | 627K | $83.5M | -7.5% | 1.416% | 1.77% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 588K | $78.3M | +4.7% | 1.328% | 0.01% |
| 22 | Neuberger Berman Group LLC | 536K | $71.3M | -10.6% | 1.209% | 0.05% |
| 23 | Schonfeld Strategic Advisors LLC | 533K | $70.9M | +480.3% | 1.202% | 0.52% |
| 24 | Stephens Investment Management Group LLC | 436K | $58.0M | -0.4% | 0.984% | 0.80% |
| 25 | Interval Partners, LP | 432K | $57.5M | -0.5% | 0.976% | 2.30% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in SITE — a direct measure of their conviction.
Filings activity in SITE during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 410 | +3.8% | 114.66% | +6.83 pp | $5.41B | +6.3% |
| Q4 2025 | 395 | +2.6% | 107.83% | 0.20 pp | $5.09B | 0.2% |
| Q3 2025 | 385 | 0.5% | 108.03% | +13.78 pp | $5.10B | +15% |
| Q2 2025 | 387 | +2.9% | 94.25% | 0.76 pp | $4.45B | 0.8% |
| Q1 2025 | 376 | +2.2% | 95.01% | 10.35 pp | $4.48B | 9.8% |
| Q4 2024 | 368 | +2.5% | 105.36% | 17.27 pp | $4.97B | 14% |
| Q3 2024 | 359 | 2.7% | 122.63% | 57.47 pp | $5.79B | 32% |
| Q2 2024 | 369 | — | 180.10% | — | $8.50B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Latest Form 4 transactions by company officers and directors. Insider buys are widely viewed as the highest-conviction signal because executives are risking personal capital.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| May 6, 2026 | Laughlin Daniel T. | Buy | 2K | $123.60 | $247K |
Quick answers to the most common questions about buying SITE stock.
Based on Q1 2026 13F filings, institutional ownership of SiteOne Landscape Supply, Inc. stands at 114.7%, held across 410 reporting institutions.
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC is the largest reported institutional holder of SITE, with approximately 2,486,718 shares worth $0.33B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of SITE, including CITADEL ADVISORS LLC.
Our composite Smart Money Score for SITE is 61 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
80 institutions opened new positions in SITE during Q1 2026, while 65 fully exited. 235 added to existing positions and 92 trimmed.
SITE institutional ownership rose by 6.83 percentage points quarter-over-quarter, with a net change of +15 holders.
The top 10 institutions account for 43.8% of all reported 13F value in SITE, and the top 25 account for 68.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
SiteOne Landscape Supply, Inc. (SITE) Institutional Ownership