AMG AFFILIATED MANAGERS GROUP, INC.: institutional ownership and insider trading
608 funds reported holding $9.42B of AFFILIATED MANAGERS GROUP, INC. in their latest 13F filings; in Q2 2026 funds net bought $159M, with 75 new positions and 53 funds selling out; over the last 12 months insiders bought $687K and sold $10.2M on the open market.
Famous investors holding AMG
- Izzy Englander (Millennium Management): $296M, 0.1% of the portfolio
- Mason Hawkins (Southeastern Asset Management): $1.88M, 0.1% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $39.7M, 0.1% of the portfolio
- Ken Griffin (Citadel Advisors): $71.9M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $14.5M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $1.89M, 0.0% of the portfolio
Largest institutional holders of AMG
- BlackRock, Inc. (BLK) — $938M
- VANGUARD GROUP INC — $774M
- MORGAN STANLEY (MS, MS-PA, MS-PE, MS-PF, MS-PI, MS-PK, MS-PL, MS-PO, MS-PP, MS-PQ) — $503M
- VANGUARD PORTFOLIO MANAGEMENT LLC — $471M
- VANGUARD CAPITAL MANAGEMENT LLC — $390M
- Boston Partners — $339M
- ARIEL INVESTMENTS, LLC — $338M
- STATE STREET CORP (STT, STT-PG) — $299M
- MILLENNIUM MANAGEMENT LLC — $296M
- FULLER & THALER ASSET MANAGEMENT, INC. — $290M
Recent AMG insider trades
- Jun 8, 2026: Horgen Jay C. sold 17,500 shares ($5.92M)
- Jun 1, 2026: Franqui Annette bought 750 shares ($229K)
- May 8, 2026: Matos Rodriguez Felix V. sold 1,000 shares ($300K)
- May 6, 2026: Ryan David Christopher sold 3,402 shares ($1.04M)
5%+ owners
- Morgan Stanley: 5.5% (Schedule 13G/A, filed Aug 12, 2026)
- Vanguard Capital Management: 5.2% (Schedule 13G, filed Apr 29, 2026)
- Vanguard Portfolio Management: 5.1% (Schedule 13G, filed Apr 28, 2026)