SITE US Equity

SiteOne Landscape Supply, Inc.

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Consumer Discretionary · Wholesale-Professional & Commercial Equipment & Supplies · CIK 1650729 · FYE 0103

$93.79

-9.68 (-9.36%)

USD · as of 2026-07-29 · marketstack

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Institutional ownership· 13F filers holding SITE · 2026-Q1 methodology → sources →

421 holders

% of shares outstanding held

—

Shares held (13F)

49,169,151

Reporting holders

421

% of shares outstanding suppressed: the summed institutional 13F holdings (49,169,151) exceed the latest reported shares-outstanding count (44,308,229) by more than securities-lending double counting can explain (FINRA short interest 2,090,997 shares at 2026-04-30), so the share count is stale or wrong (common for annual 20-F foreign private issuers after a share issuance) and a percentage would be fabricated. Holder share counts are shown as filed.

Top holders

largest 100 of 421 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	PRICE T ROWE ASSOCIATES INC /MD/	4,513,6434.5M	$601M	—	—
2	KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	2,486,7182.5M	$331M	—	TRIM -7%
3	AQR CAPITAL MANAGEMENT LLC	2,272,8252.3M	$293M	—	ADD 229%
4	WASATCH ADVISORS LP	2,121,5242.1M	$282M	—	—
5	BlackRock, Inc.	2,065,8462.1M	$275M	—	ADD 4%
6	BAMCO INC /NY/	2,059,0762.1M	$274M	—	—
7	VANGUARD CAPITAL MANAGEMENT LLC	2,005,1492.0M	$267M	—	NEW†
8	VANGUARD PORTFOLIO MANAGEMENT LLC	1,767,7061.8M	$235M	—	NEW†
9	T. Rowe Price Investment Management, Inc.	1,693,8521.7M	$225M	—	TRIM -23%
10	Conestoga Capital Advisors, LLC	1,106,7011.1M	$147M	—	ADD 3%
11	59 North Capital Management, LP	1,049,4401.0M	$140M	—	TRIM -28%
12	Capital World Investors	960,952960,952	$128M	—	TRIM -31%
13	Artisan Partners Limited Partnership	836,975836,975	$111M	—	ADD 89%
14	Impax Asset Management Group plc	824,430824,430	$110M	—	TRIM -10%
15	DIMENSIONAL FUND ADVISORS LP	805,336805,336	$107M	—	ADD 4%
16	GEODE CAPITAL MANAGEMENT, LLC	785,645785,645	$105M	—	ADD 2%
17	STATE STREET CORP	770,869770,869	$103M	—	—
18	UBS Group AG	722,378722,378	$96M	—	ADD 223%
19	Amundi	703,767703,767	$94M	—	—
20	AMERIPRISE FINANCIAL INC	670,506670,506	$89M	—	ADD 20%
21	GENEVA CAPITAL MANAGEMENT LLC	627,284627,284	$83M	—	TRIM -7%
22	CITADEL ADVISORS LLC	594,728594,728	$79M	—	ADD 7%
23	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	588,335588,335	$78M	—	ADD 5%
24	NEUBERGER BERMAN GROUP LLC	535,726535,726	$71M	—	TRIM -11%
25	Schonfeld Strategic Advisors LLC	532,554532,554	$71M	—	ADD 480%
26	GW&K Investment Management, LLC	506,764506,764	$67M	—	—
27	Stephens Investment Management Group LLC	435,998435,998	$58M	—	—
28	Interval Partners, LP	432,243432,243	$58M	—	—
29	JANUS HENDERSON GROUP PLC	410,854410,854	$55M	—	ADD 4%
30	AMERICAN CENTURY COMPANIES INC	392,934392,934	$52M	—	—
31	MILLENNIUM MANAGEMENT LLC	372,686372,686	$50M	—	TRIM -4%
32	WELLS FARGO & COMPANY/MN	367,201367,201	$49M	—	TRIM -8%
33	BROWN ADVISORY INC	352,669352,669	$47M	—	TRIM -12%
34	Capital International Investors	350,000350,000	$47M	—	NEW
35	Driehaus Capital Management LLC	344,819344,819	$46M	—	ADD 41%
36	ACK Asset Management LLC	330,000330,000	$44M	—	—
37	BANK OF AMERICA CORP /DE/	280,204280,204	$37M	—	TRIM -27%
38	VANGUARD FIDUCIARY TRUST CO	278,273278,273	$37M	—	NEW
39	JANE STREET GROUP, LLC	277,119277,119	$37M	—	ADD 46%
40	SEI INVESTMENTS CO	254,882254,882	$34M	—	ADD 15%
41	Handelsbanken Fonder AB	252,539252,539	$34M	—	TRIM -32%
42	NORTHERN TRUST CORP	244,593244,593	$33M	—	ADD 4%
43	GOLDMAN SACHS GROUP INC	244,041244,041	$32M	—	ADD 145%
44	GILDER GAGNON HOWE & CO LLC	240,400240,400	$32M	—	TRIM -16%
45	ARGENT CAPITAL MANAGEMENT LLC	239,776239,776	$32M	—	NEW
46	Allspring Global Investments Holdings, LLC	245,784245,784	$32M	—	ADD 12%
47	RAYMOND JAMES FINANCIAL INC	236,619236,619	$31M	—	TRIM -6%
48	DF DENT & CO INC	236,148236,148	$31M	—	TRIM -34%
49	ENVESTNET ASSET MANAGEMENT INC	231,537231,537	$31M	—	ADD 3%
50	JPMORGAN CHASE & CO	225,073225,073	$29M	—	ADD 29%
51	VOYA INVESTMENT MANAGEMENT LLC	219,644219,644	$29M	—	TRIM -14%
52	MORGAN STANLEY	217,879217,879	$29M	—	TRIM -11%
53	LOOMIS SAYLES & CO L P	213,098213,098	$28M	—	TRIM -36%
54	CITIGROUP INC	203,180203,180	$27M	—	ADD 4%
55	BLI - Banque de Luxembourg Investments	216,913216,913	$27M	—	—
56	Premier Fund Managers Ltd	205,358205,358	$27M	—	TRIM -26%
57	MENORA MIVTACHIM HOLDINGS LTD.	198,749198,749	$26M	—	NEW
58	Pembroke Management, LTD	197,474197,474	$26M	—	TRIM -25%
59	ROYAL BANK OF CANADA	187,574187,574	$25M	—	ADD 24%
60	Fisher Asset Management, LLC	180,694180,694	$24M	—	ADD 5%
61	Nuveen, LLC	177,769177,769	$24M	—	ADD 108%
62	FRED ALGER MANAGEMENT, LLC	176,855176,855	$24M	—	TRIM -30%
63	Bank of New York Mellon Corp	162,788162,788	$22M	—	ADD 2%
64	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	152,819152,819	$20M	—	ADD 6%
65	Fenimore Asset Management Inc	148,154148,154	$20M	—	TRIM -3%
66	FIFTH THIRD BANCORP	143,574143,574	$19M	—	ADD 28557%
67	Qube Research & Technologies Ltd	143,241143,241	$19M	—	ADD 108%
68	Rivermont Capital Management LP	139,702139,702	$19M	—	NEW
69	BNP PARIBAS FINANCIAL MARKETS	135,761135,761	$18M	—	ADD 33%
70	NATIXIS ADVISORS, LLC	128,468128,468	$17M	—	ADD 2%
71	JONES FINANCIAL COMPANIES LLLP	127,500127,500	$17M	—	ADD 9387%
72	WCM INVESTMENT MANAGEMENT, LLC	119,082119,082	$15M	—	TRIM -4%
73	NEW YORK STATE COMMON RETIREMENT FUND	115,811115,811	$15M	—	ADD 12%
74	IEQ CAPITAL, LLC	108,884108,884	$14M	—	ADD 544%
75	Zuckerman Investment Group, LLC	100,081100,081	$13M	—	—
76	Rockefeller Capital Management L.P.	99,32899,328	$13M	—	ADD 23%
77	Swiss National Bank	88,00088,000	$12M	—	—
78	SEB Asset Management AB	87,62387,623	$12M	—	NEW
79	California Public Employees Retirement System	85,92185,921	$11M	—	ADD 8%
80	Cerity Partners LLC	84,15784,157	$11M	—	ADD 156%
81	Kinetic Partners Management, LP	84,10184,101	$11M	—	TRIM -74%
82	Mariner, LLC	81,54081,540	$11M	—	ADD 370%
83	SCOPUS ASSET MANAGEMENT, L.P.	80,00080,000	$11M	—	NEW
84	STIFEL FINANCIAL CORP	78,43678,436	$10M	—	—
85	BARCLAYS PLC	77,03677,036	$10M	—	ADD 21%
86	ROYCE & ASSOCIATES LP	76,09076,090	$10M	—	—
87	CANADA PENSION PLAN INVESTMENT BOARD	75,70075,700	$10M	—	ADD 113%
88	Universal- Beteiligungs- und Servicegesellschaft mbH	73,72873,728	$10M	—	ADD 8%
89	Summit Creek Advisors LLC	63,72963,729	$8M	—	TRIM -13%
90	STATE OF WISCONSIN INVESTMENT BOARD	63,41863,418	$8M	—	TRIM -6%
91	CWM, LLC	63,06463,064	$8M	—	ADD 200%
92	Pier Capital, LLC	58,41258,412	$8M	—	ADD 92%
93	SG Americas Securities, LLC	58,31558,315	$8M	—	TRIM -44%
94	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	56,72356,723	$8M	—	ADD 14%
95	Crown Oak Advisors, LLC	55,12855,128	$7M	—	—
96	Gotham Asset Management, LLC	52,81852,818	$7M	—	ADD 101%
97	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	52,00952,009	$7M	—	ADD 23%
98	EULAV Asset Management	51,10051,100	$7M	—	—
99	McCollum Christoferson Group LLC	82,05182,051	$7M	—	ADD 52%
100	NICHOLAS COMPANY, INC.	47,84547,845	$6M	—	—

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

PRICE T ROWE ASSOCIATES INC /MD/

5.4M

6.1M

6.0M

4.7M

4.5M

$601M

KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC

3.3M

3.2M

3.0M

2.9M

2.7M

2.5M

$331M

AQR CAPITAL MANAGEMENT LLC

95K

52K

441K

255K

692K

2.3M

$293M

WASATCH ADVISORS LP

1.7M

2.0M

2.2M

2.1M

$282M

BlackRock, Inc.

2.1M

2.0M

1.9M

2.0M

2.1M

$275M

BAMCO INC /NY/

1.7M

1.9M

2.0M

2.1M

$274M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.0M

$267M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

1.8M

$235M

T. Rowe Price Investment Management, Inc.

1.6M

2.1M

1.9M

2.0M

2.2M

1.7M

$225M

Conestoga Capital Advisors, LLC

1.2M

1.1M

$147M

59 North Capital Management, LP

—

1.7M

1.5M

1.0M

$140M

Capital World Investors

612K

620K

984K

1.0M

1.4M

961K

$128M

Artisan Partners Limited Partnership

368K

448K

539K

443K

837K

$111M

Impax Asset Management Group plc

1.0M

921K

916K

824K

$110M

DIMENSIONAL FUND ADVISORS LP

631K

670K

701K

732K

776K

805K

$107M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	421	49,169,151	—	$6.5B
2025-Q4	407	49,225,705	—	$6.1B
2025-Q3	398	48,570,913	109.6%	$6.3B
2025-Q2	395	47,141,166	106.4%	$5.7B
2025-Q1	389	47,980,362	108.3%	$5.8B

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Activists & large holders· Schedule 13D/G beneficial owners · SITE

Large holders — 13G, passive (top 5 of 6 by % of class)

Holder

% of class

Type

As of

PRICE T ROWE ASSOCIATES INC /MD/

10.4%

QII

2025-09-30

SEC →

KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC

QII

2025-12-31

SEC →

VANGUARD CAPITAL MANAGEMENT LLC

5.27%

QII

2026-03-31

SEC →

AQR CAPITAL MANAGEMENT LLC

5.11%

QII

2026-03-31

SEC →

BlackRock, Inc.

4.6%

QII

Institutional ownership· 13F filers holding SITE · 2026-Q1 methodology → sources →

421 holders

% of shares outstanding held

—

Shares held (13F)

49,169,151

Reporting holders

421

Top holders

largest 100 of 421 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	PRICE T ROWE ASSOCIATES INC /MD/	4,513,6434.5M	$601M	—	—
2	KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	2,486,7182.5M	$331M	—	TRIM -7%
3	AQR CAPITAL MANAGEMENT LLC	2,272,8252.3M	$293M	—	ADD 229%
4	WASATCH ADVISORS LP	2,121,5242.1M	$282M	—	—
5	BlackRock, Inc.	2,065,8462.1M	$275M	—	ADD 4%
6	BAMCO INC /NY/	2,059,0762.1M	$274M	—	—
7	VANGUARD CAPITAL MANAGEMENT LLC	2,005,1492.0M	$267M	—	NEW†
8	VANGUARD PORTFOLIO MANAGEMENT LLC	1,767,7061.8M	$235M	—	NEW†
9	T. Rowe Price Investment Management, Inc.	1,693,8521.7M	$225M	—	TRIM -23%
10	Conestoga Capital Advisors, LLC	1,106,7011.1M	$147M	—	ADD 3%
11	59 North Capital Management, LP	1,049,4401.0M	$140M	—	TRIM -28%
12	Capital World Investors	960,952960,952	$128M	—	TRIM -31%
13	Artisan Partners Limited Partnership	836,975836,975	$111M	—	ADD 89%
14	Impax Asset Management Group plc	824,430824,430	$110M	—	TRIM -10%
15	DIMENSIONAL FUND ADVISORS LP	805,336805,336	$107M	—	ADD 4%
16	GEODE CAPITAL MANAGEMENT, LLC	785,645785,645	$105M	—	ADD 2%
17	STATE STREET CORP	770,869770,869	$103M	—	—
18	UBS Group AG	722,378722,378	$96M	—	ADD 223%
19	Amundi	703,767703,767	$94M	—	—
20	AMERIPRISE FINANCIAL INC	670,506670,506	$89M	—	ADD 20%
21	GENEVA CAPITAL MANAGEMENT LLC	627,284627,284	$83M	—	TRIM -7%
22	CITADEL ADVISORS LLC	594,728594,728	$79M	—	ADD 7%
23	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	588,335588,335	$78M	—	ADD 5%
24	NEUBERGER BERMAN GROUP LLC	535,726535,726	$71M	—	TRIM -11%
25	Schonfeld Strategic Advisors LLC	532,554532,554	$71M	—	ADD 480%
26	GW&K Investment Management, LLC	506,764506,764	$67M	—	—
27	Stephens Investment Management Group LLC	435,998435,998	$58M	—	—
28	Interval Partners, LP	432,243432,243	$58M	—	—
29	JANUS HENDERSON GROUP PLC	410,854410,854	$55M	—	ADD 4%
30	AMERICAN CENTURY COMPANIES INC	392,934392,934	$52M	—	—
31	MILLENNIUM MANAGEMENT LLC	372,686372,686	$50M	—	TRIM -4%
32	WELLS FARGO & COMPANY/MN	367,201367,201	$49M	—	TRIM -8%
33	BROWN ADVISORY INC	352,669352,669	$47M	—	TRIM -12%
34	Capital International Investors	350,000350,000	$47M	—	NEW
35	Driehaus Capital Management LLC	344,819344,819	$46M	—	ADD 41%
36	ACK Asset Management LLC	330,000330,000	$44M	—	—
37	BANK OF AMERICA CORP /DE/	280,204280,204	$37M	—	TRIM -27%
38	VANGUARD FIDUCIARY TRUST CO	278,273278,273	$37M	—	NEW
39	JANE STREET GROUP, LLC	277,119277,119	$37M	—	ADD 46%
40	SEI INVESTMENTS CO	254,882254,882	$34M	—	ADD 15%
41	Handelsbanken Fonder AB	252,539252,539	$34M	—	TRIM -32%
42	NORTHERN TRUST CORP	244,593244,593	$33M	—	ADD 4%
43	GOLDMAN SACHS GROUP INC	244,041244,041	$32M	—	ADD 145%
44	GILDER GAGNON HOWE & CO LLC	240,400240,400	$32M	—	TRIM -16%
45	ARGENT CAPITAL MANAGEMENT LLC	239,776239,776	$32M	—	NEW
46	Allspring Global Investments Holdings, LLC	245,784245,784	$32M	—	ADD 12%
47	RAYMOND JAMES FINANCIAL INC	236,619236,619	$31M	—	TRIM -6%
48	DF DENT & CO INC	236,148236,148	$31M	—	TRIM -34%
49	ENVESTNET ASSET MANAGEMENT INC	231,537231,537	$31M	—	ADD 3%
50	JPMORGAN CHASE & CO	225,073225,073	$29M	—	ADD 29%
51	VOYA INVESTMENT MANAGEMENT LLC	219,644219,644	$29M	—	TRIM -14%
52	MORGAN STANLEY	217,879217,879	$29M	—	TRIM -11%
53	LOOMIS SAYLES & CO L P	213,098213,098	$28M	—	TRIM -36%
54	CITIGROUP INC	203,180203,180	$27M	—	ADD 4%
55	BLI - Banque de Luxembourg Investments	216,913216,913	$27M	—	—
56	Premier Fund Managers Ltd	205,358205,358	$27M	—	TRIM -26%
57	MENORA MIVTACHIM HOLDINGS LTD.	198,749198,749	$26M	—	NEW
58	Pembroke Management, LTD	197,474197,474	$26M	—	TRIM -25%
59	ROYAL BANK OF CANADA	187,574187,574	$25M	—	ADD 24%
60	Fisher Asset Management, LLC	180,694180,694	$24M	—	ADD 5%
61	Nuveen, LLC	177,769177,769	$24M	—	ADD 108%
62	FRED ALGER MANAGEMENT, LLC	176,855176,855	$24M	—	TRIM -30%
63	Bank of New York Mellon Corp	162,788162,788	$22M	—	ADD 2%
64	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	152,819152,819	$20M	—	ADD 6%
65	Fenimore Asset Management Inc	148,154148,154	$20M	—	TRIM -3%
66	FIFTH THIRD BANCORP	143,574143,574	$19M	—	ADD 28557%
67	Qube Research & Technologies Ltd	143,241143,241	$19M	—	ADD 108%
68	Rivermont Capital Management LP	139,702139,702	$19M	—	NEW
69	BNP PARIBAS FINANCIAL MARKETS	135,761135,761	$18M	—	ADD 33%
70	NATIXIS ADVISORS, LLC	128,468128,468	$17M	—	ADD 2%
71	JONES FINANCIAL COMPANIES LLLP	127,500127,500	$17M	—	ADD 9387%
72	WCM INVESTMENT MANAGEMENT, LLC	119,082119,082	$15M	—	TRIM -4%
73	NEW YORK STATE COMMON RETIREMENT FUND	115,811115,811	$15M	—	ADD 12%
74	IEQ CAPITAL, LLC	108,884108,884	$14M	—	ADD 544%
75	Zuckerman Investment Group, LLC	100,081100,081	$13M	—	—
76	Rockefeller Capital Management L.P.	99,32899,328	$13M	—	ADD 23%
77	Swiss National Bank	88,00088,000	$12M	—	—
78	SEB Asset Management AB	87,62387,623	$12M	—	NEW
79	California Public Employees Retirement System	85,92185,921	$11M	—	ADD 8%
80	Cerity Partners LLC	84,15784,157	$11M	—	ADD 156%
81	Kinetic Partners Management, LP	84,10184,101	$11M	—	TRIM -74%
82	Mariner, LLC	81,54081,540	$11M	—	ADD 370%
83	SCOPUS ASSET MANAGEMENT, L.P.	80,00080,000	$11M	—	NEW
84	STIFEL FINANCIAL CORP	78,43678,436	$10M	—	—
85	BARCLAYS PLC	77,03677,036	$10M	—	ADD 21%
86	ROYCE & ASSOCIATES LP	76,09076,090	$10M	—	—
87	CANADA PENSION PLAN INVESTMENT BOARD	75,70075,700	$10M	—	ADD 113%
88	Universal- Beteiligungs- und Servicegesellschaft mbH	73,72873,728	$10M	—	ADD 8%
89	Summit Creek Advisors LLC	63,72963,729	$8M	—	TRIM -13%
90	STATE OF WISCONSIN INVESTMENT BOARD	63,41863,418	$8M	—	TRIM -6%
91	CWM, LLC	63,06463,064	$8M	—	ADD 200%
92	Pier Capital, LLC	58,41258,412	$8M	—	ADD 92%
93	SG Americas Securities, LLC	58,31558,315	$8M	—	TRIM -44%
94	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	56,72356,723	$8M	—	ADD 14%
95	Crown Oak Advisors, LLC	55,12855,128	$7M	—	—
96	Gotham Asset Management, LLC	52,81852,818	$7M	—	ADD 101%
97	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	52,00952,009	$7M	—	ADD 23%
98	EULAV Asset Management	51,10051,100	$7M	—	—
99	McCollum Christoferson Group LLC	82,05182,051	$7M	—	ADD 52%
100	NICHOLAS COMPANY, INC.	47,84547,845	$6M	—	—

† a filer this large appearing as NEW usually reflects a renamed or succeeded filing entity (the old name stops filing the same quarter) — not a brand-new position.

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

PRICE T ROWE ASSOCIATES INC /MD/

5.4M

6.1M

6.0M

4.7M

4.5M

$601M

KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC

3.3M

3.2M

3.0M

2.9M

2.7M

2.5M

$331M

AQR CAPITAL MANAGEMENT LLC

95K

52K

441K

255K

692K

2.3M

$293M

WASATCH ADVISORS LP

1.7M

2.0M

2.2M

2.1M

$282M

BlackRock, Inc.

2.1M

2.0M

1.9M

2.0M

2.1M

$275M

BAMCO INC /NY/

1.7M

1.9M

2.0M

2.1M

$274M

VANGUARD CAPITAL MANAGEMENT LLC

—

2.0M

$267M

VANGUARD PORTFOLIO MANAGEMENT LLC

—

1.8M

$235M

T. Rowe Price Investment Management, Inc.

1.6M

2.1M

1.9M

2.0M

2.2M

1.7M

$225M

Conestoga Capital Advisors, LLC

1.2M

1.1M

$147M

59 North Capital Management, LP

—

1.7M

1.5M

1.0M

$140M

Capital World Investors

612K

620K

984K

1.0M

1.4M

961K

$128M

Artisan Partners Limited Partnership

368K

448K

539K

443K

837K

$111M

Impax Asset Management Group plc

1.0M

921K

916K

824K

$110M

DIMENSIONAL FUND ADVISORS LP

631K

670K

701K

732K

776K

805K

$107M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	421	49,169,151	—	$6.5B
2025-Q4	407	49,225,705	—	$6.1B
2025-Q3	398	48,570,913	109.6%	$6.3B
2025-Q2	395	47,141,166	106.4%	$5.7B
2025-Q1	389	47,980,362	108.3%	$5.8B

Short interest has its own tab now — open SI →

Activists & large holders· Schedule 13D/G beneficial owners · SITE

Large holders — 13G, passive (top 5 of 6 by % of class)

Holder

% of class

Type

As of

PRICE T ROWE ASSOCIATES INC /MD/

10.4%

QII

2025-09-30

SEC →

KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC

QII

2025-12-31

SEC →

VANGUARD CAPITAL MANAGEMENT LLC

5.27%

QII

2026-03-31

SEC →

AQR CAPITAL MANAGEMENT LLC

5.11%

QII

2026-03-31

SEC →

BlackRock, Inc.

4.6%

QII

SITE US Equity☆

Institutional ownership· 13F filers holding SITE · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · SITE

Institutional ownership· 13F filers holding SITE · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Activists & large holders· Schedule 13D/G beneficial owners · SITE

SITE US Equity