Who owns Arthur J. Gallagher & Co.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of AJG from SEC Form 13F filings across 1,288 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 1,288 institutions disclosed 238.4M shares of Arthur J. Gallagher & Co. worth $54.67B — about 92.9% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
1,288
13F holders
$54.67B
value, 2026 filers
92.9%
of shares outstanding (238.4M sh)
179
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of AJG's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 19.8M | $4.55B | 0.1% | 7.7% | +2.7% |
| 2 | FMR LLC | 18.6M | $4.28B | 0.2% | 7.3% | +27.5% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 16.8M | $3.85B | 0.1% | 6.5% | +0.5% |
| 4 | JPMORGAN CHASE & CO | 14.4M | $3.26B | 0.2% | 5.6% | -26.6% |
| 5 | Capital World Investors | 12.5M | $2.87B | 0.3% | 4.9% | -9.4% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT LLC | 12.5M | $2.86B | 0.1% | 4.9% | +0.3% |
| 7 | STATE STREET CORP | 11.3M | $2.60B | 0.1% | 4.4% | +3.0% |
| 8 | Dodge & Cox | 9.4M | $2.15B | 1.1% | 3.6% | +27.3% |
| 9 | NORGES BANKNEW | 6.7M | $1.55B | 0.2% | 2.6% | new |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 6.3M | $1.45B | 0.1% | 2.5% | +0.9% |
| 11 | EAGLE CAPITAL MANAGEMENT LLC | 4.9M | $1.12B | 3.4% | 1.9% | +83.5% |
| 12 | PRINCIPAL FINANCIAL GROUP INC | 3.5M | $802.3M | 0.4% | 1.4% | +7.8% |
| 13 | GOLDMAN SACHS GROUP INC | 2.8M | $646.9M | 0.1% | 1.1% | +44.3% |
| 14 | MORGAN STANLEY | 2.6M | $595.0M | 0.0% | 1% | -36.1% |
| 15 | Capital Research Global Investors | 2.6M | $593.6M | 0.1% | 1% | -13.2% |
| 16 | WCM INVESTMENT MANAGEMENT, LLC | 2.4M | $550.9M | 1.0% | 0.9% | +2.7% |
| 17 | GTCR LLC | 2.4M | $544.9M | 13.9% | 0.9% | 0.0% |
| 18 | FRANKLIN RESOURCES INC | 2.2M | $509.4M | 0.1% | 0.9% | +13.6% |
| 19 | NORTHERN TRUST CORP | 2.2M | $506.1M | 0.1% | 0.9% | -1.1% |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.2M | $495.1M | 0.1% | 0.8% | +2.2% |
| 21 | Capital International Investors | 2.0M | $459.5M | 0.1% | 0.8% | -22.9% |
| 22 | Jupiter Topco LLCNEW | 1.9M | $445.4M | 0.2% | 0.8% | new |
| 23 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1.9M | $440.2M | 0.3% | 0.7% | +494.4% |
| 24 | Invesco Ltd. | 1.8M | $401.9M | 0.0% | 0.7% | +2.0% |
| 25 | BANK OF AMERICA CORP /DE/ | 1.5M | $353.8M | 0.0% | 0.6% | -16.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.