# SITEONE LANDSCAPE SUPPLY INC COM

SITEONE LANDSCAPE SUPPLY INC COM is a security (CUSIP 82982L103) tracked across SEC portfolio filings. 414 institutional managers reported $5.1B on Form 13F as of 2026-06-30; 42 registered fund positions totaling $808.7M via N-PORT as of 2026-05-31.

## Summary

- Issuer: SITEONE LANDSCAPE SUPPLY INC
- Class: COM
- CUSIP: 82982L103
- Asset category: EC
- 13F holders: 414
- 13F value: $5.1B
- 13F period: 2026-06-30
- N-PORT fund positions: 42
- N-PORT value: $808.7M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 414 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $499.4M | 4,009,546 |
| [KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC](https://search.stillhousedata.com/firm/104599) | LOS ANGELES, CA | $331.0M | 2,486,718 |
| [AQR CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/111883) | Greenwich, CT | $292.8M | 2,272,825 |
| BlackRock, Inc. | New York, NY | $275.0M | 2,065,846 |
| [BAMCO INC /NY/](https://search.stillhousedata.com/firm/110789) | NEW YORK, NY | $274.1M | 2,059,076 |
| [WASATCH ADVISORS LP](https://search.stillhousedata.com/firm/6081) | SALT LAKE CITY, UT | $145.3M | 1,269,677 |
| [59 North Capital Management, LP](https://search.stillhousedata.com/firm/300258) | New York, NY | $139.7M | 1,049,440 |
| Capital World Investors | LOS ANGELES, CA | $127.9M | 960,952 |
| [Artisan Partners Limited Partnership](https://search.stillhousedata.com/firm/150114) | Milwaukee, WI | $111.4M | 836,975 |
| Conestoga Capital Advisors, LLC | WAYNE, PA | $109.9M | 960,286 |
| Impax Asset Management Group plc | LONDON, X0 | $109.7M | 824,430 |
| DIMENSIONAL FUND ADVISORS LP | AUSTIN, TX | $107.2M | 805,336 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $104.6M | 785,645 |
| STATE STREET CORP | BOSTON, MA | $102.6M | 770,869 |
| UBS Group AG | Zurich, V8 | $96.2M | 722,378 |

## Top fund holders (N-PORT)

_Showing 15 of 42 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $224.6M | 175.93% |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $173.5M | 21.41% |
| [T. Rowe Price Mid-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002103) | T. ROWE PRICE MID-CAP VALUE FUND, INC. | $84.8M | 57.40% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $65.9M | 8.09% |
| [T. Rowe Price Small-Cap Stock Fund, Inc.](https://search.stillhousedata.com/fund/S000002120) | T. ROWE PRICE SMALL-CAP STOCK FUND, INC. | $61.3M | 75.97% |
| [T. Rowe Price Institutional Small-Cap Stock Fund](https://search.stillhousedata.com/fund/S000002094) | T. Rowe Price Equity Funds, Inc. | $33.3M | 76.92% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $31.1M | 14.28% |
| [Nationwide Geneva Small Cap Growth Fund](https://search.stillhousedata.com/fund/S000041104) | Nationwide Mutual Funds | $22.9M | 208.41% |
| [Master Advantage Large Cap Core Portfolio](https://search.stillhousedata.com/fund/S000001970) | Master Large Cap Series LLC | $18.3M | 41.69% |
| [T. Rowe Price Small-Cap Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002121) | T. ROWE PRICE SMALL-CAP VALUE FUND, INC. | $17.0M | 18.44% |
| [Janus Henderson Venture Fund](https://search.stillhousedata.com/fund/S000010488) | JANUS INVESTMENT FUND | $12.2M | 39.81% |
| [CONESTOGA SMID CAP FUND](https://search.stillhousedata.com/fund/S000043859) | Conestoga Funds | $11.7M | 235.23% |
| [Value Line Small Cap Opportunities Fund, Inc.](https://search.stillhousedata.com/fund/S000007569) | Value Line Small Cap Opportunities Fund, Inc. | $6.8M | 87.43% |
| [Nicholas Limited Edition, Inc.](https://search.stillhousedata.com/fund/S000009136) | Nicholas Limited Edition, Inc. | $6.0M | 181.36% |
| [T. Rowe Price U.S. Equity Research Fund](https://search.stillhousedata.com/fund/S000002071) | T. Rowe Price U.S. Equity Research Fund, Inc. | $5.8M | 3.72% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/82982L103.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.