Who holds ticker verified against the SEC company list on 2026-09-10 — a reviewed name-and-class mapping row, never an inferred symbol. how tickers are mapped ↗

SITEONE LANDSCAPE SUPPLY INC · common stock (filed as COM) · Q1 2026 · 6 members disclosed SITE ↗
13F filers reporting this class for the quarter ended 2026-03-31
336
sum of the reported values across every holder; undisclosed values are left out, never counted as zero
$4.7B
holders whose share count rose or who opened the position (new + add), by shares
179
holders absent this quarter after holding last quarter — inferred from absence, not a sale record
47
FILING WINDOW OPEN
Q3 2026 filings are due by 2026-11-16 — figures for that quarter will change; missing filers are not zeros.

Holders — quarter ended 2026-03-31

by reported value · Δ shares vs 2025-12-31Holders rank by reported value. The change kind — new, add, trim or exit — is read from the share count against the prior quarter, never from the reported value.
13F holders of SITE ranked by reported value, 1–25 of 389 holders
#FilerReported valueSharesΔ sharesChange
1AQR CAPITAL MANAGEMENT LLC$293M2,272,825+1,581,267ADD
2WASATCH ADVISORS LP$282M2,121,524+33,347ADD
3BlackRock, Inc.$275M2,065,846+83,603ADD
4BAMCO INC /NY/$274M2,059,076+30,710ADD
5VANGUARD CAPITAL MANAGEMENT LLC$267M2,005,149—NO PRIOR
6VANGUARD PORTFOLIO MANAGEMENT LLC$235M1,767,706—NO PRIOR
7Conestoga Capital Advisors, LLC$147M1,106,701+31,684ADD
859 North Capital Management, LP$140M1,049,440−406,672TRIM
9Capital World Investors$128M960,952−441,385TRIM
10Artisan Partners Limited Partnership$111M836,975+393,708ADD
11DIMENSIONAL FUND ADVISORS LP$107M805,336+28,958ADD
12GEODE CAPITAL MANAGEMENT, LLC$105M785,645+19,125ADD
13STATE STREET CORP$103M770,869+13,062ADD
14UBS Group AG$96.2M722,378+498,567ADD
15Amundi$93.6M703,767−5,797TRIM
16AMERIPRISE FINANCIAL INC$89.3M670,506+110,517ADD
17CITADEL ADVISORS LLC$79.2M594,728+37,060ADD
18CHARLES SCHWAB INVESTMENT MANAGEMENT INC$78.3M588,335+26,343ADD
19Schonfeld Strategic Advisors LLC$70.9M532,554+440,790ADD
20Stephens Investment Management Group LLC$58.0M435,998−1,601TRIM
21Interval Partners, LP$57.5M432,243−2,408TRIM
22Janus Henderson Group Ltd.$54.7M410,854+14,414ADD
23AMERICAN CENTURY COMPANIES INC$52.3M392,934−1,236TRIM
24MILLENNIUM MANAGEMENT LLC$49.6M372,686−17,295TRIM
25WELLS FARGO & COMPANY/MN$48.9M367,201−31,142TRIM
Show all 389 holders
Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt.

Congress ↔ notable managers · SITE

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Use of congressional disclosure reports for commercial purposes, credit decisions or solicitation is restricted by 5 U.S.C. §13107(c).

Notable managers · quarter ended 2026-03-31

Adding
1 Gotham Asset Management $7.0M held
Trimming
1 Caxton Associates $0 held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · SITEONE LANDSCAPE SUPPLY INC

Merged timeline of congressional filings and notable-manager moves on SITE
DateWhoChangeSize
2026-05-15Gotham Asset Management 13FADD+26,532 sh
2026-05-14Caxton Associates 13FEXIT−1,949 sh

2 newest, by filing date · 13F rows are quarter-end snapshots, not trades

A 13F is a quarterly, long-only snapshot filed up to 45 days late — not current holdings. what a 13F covers ↗

13F reports cover LONG positions in Section 13(f) securities (US exchange-traded equities plus reportable options, warrants, certain convertibles) held by managers with at least $100M in such securities — so managers below that threshold are absent entirely. No short positions, no cash, no non-13(f) assets — not a full portfolio, and not a census of institutional ownership.

Positions are quarter-end snapshots filed up to 45 days late — not current holdings: a position may have changed or closed since the quarter ended.

Values are the manager's stated market value at quarter-end in era-dependent units (whole dollars for form versions effective 2023-01-03 onward, thousands before), normalized here to whole dollars; each record notes its original unit.

Affiliated managers may report the same position, so one position can appear under more than one filer.

Positions under confidential treatment may be omitted until a later amendment discloses them.

These are disclosures, not investment advice.