AJG supply chain intelligence for Arthur J. Gallagher & Co.: verified suppliers, customers, debt relationships, acquisitions, and ownership data.
Data compiled by Redley Lamar · ChainSifter Intelligence
Arthur J. Gallagher & Co. (AJG) is shown with relationship data already present in ChainSifter's database. Counts below come from stored supply-chain records and filing/source URLs where available; missing source URLs are not filled in or estimated.
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| ANGH | Anghami Inc. | 72% | Reciprocal relationship from ANGH graph: Reciprocal relationship from AJG graph: Reciprocal relationship from ANGH graph: ss impactful streaming platforms with limited Telco integration and overall r… |
| AXS | AXIS Capital Holdings Limited | 72% | Reciprocal relationship from AXS graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS graph:… |
| AXS-PE | AXIS Capital Holdings Limited | 72% | Reciprocal relationship from AXS-PE graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS-PE graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS-… |
| BCHT | Birchtech Corp. | 72% | Reciprocal relationship from BCHT graph: Reciprocal relationship from AJG graph: Reciprocal relationship from BCHT graph: olly-owned subsidiary, MES, Inc., and (a) Chem-Mod LLC (“Chem-Mod”), (b) Arth… |
| GSHD | Goosehead Insurance, Inc. | 72% | Reciprocal relationship from GSHD graph: Reciprocal relationship from AJG graph: Reciprocal relationship from GSHD graph: . Independent agencies are “independent” of any one Carrier and can offer ins… |
| MTB | M&T Bank Corporation | 72% | Reciprocal relationship from MTB graph: in the periods where such expenses were incurred. Additionally, the Company expects to achieve operating cost savings and other business synergies as a result … |
| MTB-PH | MTB-PH | 72% | Reciprocal relationship from MTB-PH graph: Reciprocal relationship from AJG graph: Reciprocal relationship from MTB-PH graph: rmining the fair value of acquired loans. Accordingly, the Company record… |
| RNR | RenaissanceRe Holdings Ltd. | 72% | Reciprocal relationship from RNR graph: 5-10 are effective for public business entities for annual reporting periods beginning after December 15, 2028, and interim periods within those annual reporti… |
| WTM | White Mountains Insurance Group, Ltd. | 72% | Reciprocal relationship from WTM graph: nal and excess of loss basis. Nuclear Nuclear insurance covers country specific nuclear pools and companies and institutions with nuclear exposure excluded fro… |
| WTW | Willis Towers Watson Public Limited Company | 72% | Reciprocal relationship from WTW graph: Reciprocal relationship from AJG graph: Reciprocal relationship from WTW graph: Reciprocal relationship from AJG graph: Reciprocal relationship from WTW graph:… |
| Ticker | Name | Confidence | Evidence |
|---|---|---|---|
| USGOV-DEPARTMENT-OF-TRANSPORTATION | USGOV-DEPARTMENT-OF-TRANSPORTATION | 95% | USAspending awards from Department of Transportation: $6,895,330 across 3 awards. 693JF720C000012 MARINE INSURANCE BROKERAGE AND FLEET PROTECTION&INDEMNITY INSURANCE SERVICES; 693JF726C000004 PROTECT… |
| AXS | AXIS Capital Holdings Limited | 72% | Reciprocal relationship from AXS graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS graph:… |
| AXS-PE | AXIS Capital Holdings Limited | 72% | Reciprocal relationship from AXS-PE graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS-PE graph: Reciprocal relationship from AJG graph: Reciprocal relationship from AXS-… |
| KROSE-GMBH | KROSE-GMBH | 62% | e Software I n September 2025, the FASB issued ASU 2025-06, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal-Use Software, … |
| Instrument | Description | Confidence | Evidence |
|---|---|---|---|
| AJG-DEBT | Debt stack $13.5B | 90% | Market cache reports total debt of $13.5B. |
| Holder | Name | Confidence | Evidence |
|---|---|---|---|
| AJG-OWNER-STATE-STREET-CORP | STATE STREET CORP | 95% | 13F/ownership overlay lists STATE STREET CORP; shares held 10,973,921; value $2.38T; as of 2026-03-31. |
| AJG-OWNER-VANGUARD-PORTFOLIO-MANAGEMENT-LLC | VANGUARD PORTFOLIO MANAGEMENT LLC | 95% | 13F/ownership overlay lists VANGUARD PORTFOLIO MANAGEMENT LLC; shares held 12,419,279; value $2.69T; as of 2026-03-31. |
| AJG-OWNER-MORGAN-STANLEY | MORGAN STANLEY | 95% | 13F/ownership overlay lists MORGAN STANLEY; shares held 20,415,773; value $5.55T; as of 2026-03-31. |
| AJG-OWNER-JPMORGAN-CHASE-CO | JPMORGAN CHASE & CO | 95% | 13F/ownership overlay lists JPMORGAN CHASE & CO; shares held 19,568,047; value $4.23T; as of 2026-03-31. |
| AJG-OWNER-FMR-LLC | FMR LLC | 95% | 13F/ownership overlay lists FMR LLC; shares held 14,620,963; value $3.17T; as of 2026-03-31. |
| AJG-OWNER-CAPITAL-WORLD-INVESTORS | Capital World Investors | 95% | 13F/ownership overlay lists Capital World Investors; shares held 13,817,720; value $2.99T; as of 2026-03-31. |
| AJG-OWNER-DZ-BANK-AG-DEUTSCHE-ZENTRAL-GENOSSENSCHA | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 95% | 13F/ownership overlay lists DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main; shares held 12,584,984; value $2.35T; as of 2026-03-31. |
| AJG-OWNER-VANGUARD-CAPITAL-MANAGEMENT-LLC | VANGUARD CAPITAL MANAGEMENT LLC | 95% | 13F/ownership overlay lists VANGUARD CAPITAL MANAGEMENT LLC; shares held 33,399,796; ownership 13.03%; value $7.23T; as of 2026-03-31. |
| AJG-OWNER-BLACKROCK-INC | BlackRock, Inc. | 95% | 13F/ownership overlay lists BlackRock, Inc.; shares held 19,307,796; value $4.18T; as of 2026-03-31. |
| AJG-OWNER-BARCLAYS-PLC | BARCLAYS PLC | 95% | 13F/ownership overlay lists BARCLAYS PLC; shares held 7,884,642; value $2.03T; as of 2026-03-31. |
| AJG | Arthur J. Gallagher & Co. | 82% | GALLAGHER THOMAS JOSEPH | President | sell | 32795 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Cary Richard C | Controller, CAO | option_exercise | 2349 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Bay Walter D. | General Counsel | option_exercise | 24500 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | GALLAGHER J PATRICK JR | CEO | option_exercise | 76975 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Cary Richard C | Controller, CAO | option_exercise | 2349 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Bay Walter D. | General Counsel | option_exercise | 24500 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Gallagher Patrick Murphy | Chief Operating Officer | buy | 17775 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | GALLAGHER THOMAS JOSEPH | President | option_exercise | 32895 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | William F. Ziebell | Director | unknown |
| AJG | Arthur J. Gallagher & Co. | 82% | Pesch Michael Robert | Vice President | option_exercise | 13167 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Pesch Michael Robert | Vice President | option_exercise | 13167 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | William F. Ziebell | Director | unknown |
| AJG | Arthur J. Gallagher & Co. | 82% | Bay Walter D. | General Counsel | option_exercise | 82504 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Pietrucha Susan E | Chief Human Resources Officer | option_exercise | 21210 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | HOWELL DOUGLAS K | VP & Chief Financial Officer | option_exercise | 31265 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | GALLAGHER THOMAS JOSEPH | President | option_exercise | 32895 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Gallagher Patrick Murphy | Chief Operating Officer | sell | 4620 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | GALLAGHER J PATRICK JR | CEO | option_exercise | 76975 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | CARY RICHARD C | Controller, CAO | option_exercise | 2349 shares |
| AJG | Arthur J. Gallagher & Co. | 82% | Bloom Mark H. | Vice President | option_exercise | 13331 shares |
| Ticker | Name | Chain Index | Hops | Relationship Types |
|---|---|---|---|---|
| AXS | AXIS Capital Holdings Limited | 100.00 | 1 | ['customer', 'supplier'] |
| ANGH | Anghami Inc. | 100.00 | 1 | ['supplier'] |
| BCHT | Birchtech Corp. | 100.00 | 1 | ['supplier'] |
| GSHD | Goosehead Insurance, Inc. | 100.00 | 1 | ['supplier'] |
| AXS-PE | AXIS Capital Holdings Limited | 100.00 | 1 | ['customer', 'supplier'] |
| MTB | M&T Bank Corporation | 100.00 | 1 | ['supplier'] |
| RNR | RenaissanceRe Holdings Ltd. | 100.00 | 1 | ['supplier'] |
| WTM | White Mountains Insurance Group, Ltd. | 100.00 | 1 | ['supplier'] |
| WTW | Willis Towers Watson Public Limited Company | 100.00 | 1 | ['supplier'] |
| MTB-PH | M&T BANK CORP | 100.00 | 1 | ['supplier'] |
| DTE | DTE Energy Company | 50.00 | 2 | |
| FISI | Financial Institutions, Inc. | 50.00 | 2 | |
| FNMAS | Federal National Mortgage Association | 50.00 | 2 | |
| FMCKI | Federal Home Loan Mortgage Corporation | 50.00 | 2 | |
| TLN | Talen Energy Corporation | 50.00 | 2 | |
| MAX | MediaAlpha, Inc. | 50.00 | 2 | |
| RNR-PF | RenaissanceRe Holdings Ltd. | 50.00 | 2 | |
| MRSH | Marsh & McLennan Companies, Inc. | 50.00 | 2 | |
| LNT | Alliant Energy Corporation | 50.00 | 2 | |
| LPLA | LPL Financial Holdings Inc. | 50.00 | 2 |