Bay Walter D. (CIK 1410235) reported 19 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-17). Recent activity: Buy AJG (7,090 shares), Sell AJG (7,090 shares), Buy AJG (7,090 shares), Sell AJG (2,411 shares), Buy AJG (15,850 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 7,090 | $0 |
| 2026-03-17 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 7,090 | $0 |
| 2026-03-17 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 7,090 | $0 |
| 2026-03-17 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 2,411 | $501,319 |
| 2025-12-23 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 15,850 | $1.3M |
| 2025-12-23 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 15,850 | $4.0M |
| 2025-12-23 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 1,724 | $0 |
| 2025-04-02 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 79 | $0 |
| 2025-04-02 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 79 | $27,191 |
| 2025-03-18 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 7,180 | $0 |
| 2025-03-18 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 7,180 | $0 |
| 2025-03-18 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 7,180 | $0 |
| 2025-03-18 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 3,108 | $1.0M |
| 2025-03-14 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 2,250 | $0 |
| 2025-03-14 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 2,250 | $0 |
| 2025-03-14 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 945 | $307,834 |
| 2025-02-14 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 10,000 | $3.3M |
| 2025-02-07 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Buy | 94,732 | $0 |
| 2025-02-07 | Arthur J. Gallagher & Co. (AJG) | General Counsel | Sell | 40,613 | $12.8M |
Source: SEC Form 4 filings · as of 2026-03-17