506 institutions reported holding $12.75B of MAGNA (MGA) in SEC 13F filings for 2026-06-30. Largest institutional holders: PZENA INVESTMENT MANAGEMENT LLC ($2.23B), VANGUARD GROUP INC ($863.6M), Royal Bank of Canada ($713.1M), HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC ($577.5M), BANK OF MONTREAL /CAN/ ($415.2M). Source: SEC Form 13F.
Source: SEC Form 13F filings · as of 2026-06-30