Ownership

Who owns Boyd Group Services Inc., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).

Stakes over 5%

Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.

Bank of Montreal, BANK OF MONTREAL HOLDING INC., BMO NESBITT BURNS INC. WEALTH MANAGEMENT May 13, 2026

Bank of Montreal: 5.2% · 1,439,801 shares — BANK OF MONTREAL HOLDING INC.: 0.0% · 830,730 shares — BMO NESBITT BURNS INC. WEALTH MANAGEMENT: 3.0% · 828,724 shares

View filing (SCHEDULE 13G)

1832 Asset Management L.P., MD Financial Management Inc., SCOTIA CAPITAL INC. February 11, 2026

1832 Asset Management L.P.: 8.5% · 2,359,177 shares — MD Financial Management Inc.: 0.1% · 37,840 shares — SCOTIA CAPITAL INC.: 0.1% · 16,482 shares

View filing (SCHEDULE 13G)

1 more 5% stakes behind a free account

See every investor who has disclosed crossing 5% of Boyd Group Services Inc..

Super investors holding BGSI

Every institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of Boyd Group Services Inc. they hold.

Investor	Position value	Shares	% of their portfolio	% of company	As of
1832 Asset Management L.P.	$224M	2,362,770	0.11%	—	June 30, 2026
VANGUARD GROUP INC	$187M	1,175,631	0.00%	—	December 31, 2025

146 more institutional holders behind a free account

See every manager reporting Boyd Group Services Inc., how much of the company they hold, and how big the position is inside their own portfolio.

Funds holding BGSI

Funds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets.

Fund	Position value	% of net assets	% of company	As of
Fidelity Series Canada Fund	$79.3M	0.80%	—	April 30, 2026
VANGUARD TOTAL INTERNATIONAL STOCK INDEX FUND	$50.2M	0.01%	—	April 30, 2026

79 more funds behind a free account

See every fund holding Boyd Group Services Inc. and what share of its net assets the position represents.