Arthur J. Gallagher & Co. (AJG) ownership: Top institutional holder: VANGUARD GROUP INC ($8.12B). Insider activity: Net Seller (0 buys, 20 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 31390446.00 | $8.12B | 2025-12-31 |
| JPMORGAN CHASE & CO | 19568047.00 | $4.23B | 2026-03-31 |
| BlackRock, Inc. | 19307796.00 | $4.18B | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 16699898.00 | $3.62B | 2026-03-31 |
| FMR LLC | 14620963.00 | $3.17B | 2026-03-31 |
| Capital World Investors | 13817720.00 | $2.99B | 2026-03-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 12419279.00 | $2.69B | 2026-03-31 |
| STATE STREET CORP | 10973921.00 | $2.38B | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-07-01 | |
| Sell | null | 2026-06-22 | |
| Sell | null | 2026-06-02 |
Back to AJG overview · AJG earnings · All congressional trades
Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.