Bay Walter D.
SEC CIK 1410235 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| AJG | Arthur J. Gallagher & Co. | GC | 71.3K | — | $28.90M | 41 | 2022-03-14 | 2026-08-24 |
Most active insiders at AJG, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Bay Walter D. | GC | — | $7.28M |
| 2 | GALLAGHER J PATRICK JR | CEO, Dir | — | $6.32M |
| 3 | Hudson Scott R | VP | — | $4.03M |
| 4 | Mead Christopher E | VP | — | $3.15M |
| 5 | CARY RICHARD C | CAO, Ctrl | — | $2.44M |
| 6 | HOWELL DOUGLAS K | VP, CFO | — | $1.29M |
| 7 | Pesch Michael Robert | VP | $988.5K | — |
| 8 | Harries Richard de Winton Wilkin | Dir | — | — |
| 9 | Gallagher Patrick Murphy | COO | — | — |
| 10 | Clarke Teresa Hillary | Dir | — | — |
Transactions 41
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-26 19:34 | 2026-08-24 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale | $270.08 | -12.0K | 71.3K | -14% | -$3.24M | |
| D | 2026-04-01 20:02 | 2026-03-31 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $215.95 | +1,415 | 83.9K | +2% | +$305.6K |
| D | 2026-04-01 20:02 | 2026-03-31 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $215.95 | -627 | 83.3K | -0.7% | -$135.4K |
| 2026-03-17 | 2026-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $207.93 | -2,411 | 75.4K | -3% | -$501.3K | |
| M | 2026-03-17 | 2026-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 0 | New | $0 |
| 2026-03-17 | 2026-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | A - Grant | $0.00 | +7,090 | 7,090 | New | $0 | |
| D | 2025-12-23 | 2025-12-19 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $79.59 | +15.8K | 95.4K | +20% | +$1.26M |
| D | 2025-12-23 | 2025-12-19 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale+OE | $255.00 | -15.8K | 79.5K | -17% | -$4.04M |
| D | 2025-12-23 | 2025-12-19 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | G - Gift | $0.00 | -1,724 | 77.8K | -2% | $0 |
| D | 2025-04-02 | 2025-03-31 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | +78.76 | 79.5K | +0.1% | $0 |
| D | 2025-04-02 | 2025-03-31 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $345.24 | -78.76 | 79.5K | -0.1% | -$27.2K |
| 2025-03-18 | 2025-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | A - Grant | $0.00 | +7,180 | 7,180 | New | $0 | |
| 2025-03-18 | 2025-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $325.24 | -3,108 | 79.5K | -4% | -$1.01M | |
| M | 2025-03-18 | 2025-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 0 | New | $0 |
| M | 2025-03-14 | 2025-03-12 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 76.4K | New | $0 |
| 2025-03-14 | 2025-03-12 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $325.75 | -945 | 75.5K | -1% | -$307.8K | |
| 2025-02-14 | 2025-02-13 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale | $326.62 | -10.0K | 74.2K | -12% | -$3.27M | |
| D | 2025-02-07 | 2025-02-05 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | +94.7K | 124.8K | +315% | $0 |
| D | 2025-02-07 | 2025-02-05 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $316.30 | -40.6K | 84.2K | -33% | -$12.85M |
| 2024-07-30 | 2024-07-30 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale | $284.06 | -6,335 | 30.1K | -17% | -$1.80M | |
| D | 2024-06-18 | 2024-06-18 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale | $262.74 | -8,303 | 36.4K | -19% | -$2.18M |
| DM | 2024-05-20 | 2024-05-16+ | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $70.74 | +16.8K | 45.5K | +59% | +$1.19M |
| DM | 2024-05-20 | 2024-05-16+ | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale+OE | $255.48 | -24.4K | 44.7K | -35% | -$6.23M |
| M | 2024-03-19 | 2024-03-16 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 2,250 | New | $0 |
| 2024-03-19 | 2024-03-16 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | A - Grant | $0.00 | +8,914 | 11.2K | +396% | $0 | |
| 2024-03-19 | 2024-03-16 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $253.17 | -3,858 | 52.3K | -7% | -$976.7K | |
| 2024-03-18 | 2024-03-14 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $254.91 | -980 | 47.2K | -2% | -$249.8K | |
| M | 2024-03-18 | 2024-03-14 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 48.2K | New | $0 |
| D | 2023-09-19 | 2023-09-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale+OE | $232.00 | -21.8K | 44.7K | -33% | -$5.06M |
| D | 2023-09-19 | 2023-09-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $56.86 | +21.8K | 66.5K | +49% | +$1.24M |
| DM | 2023-03-17 | 2023-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 5,750 | New | $0 |
| D | 2023-03-17 | 2023-03-15 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $177.09 | -1,773 | 44.7K | -4% | -$314.0K |
| D | 2023-03-14 | 2023-03-12 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | A - Grant | $0.00 | +9,800 | 19.6K | +101% | $0 |
| DM | 2023-03-14 | 2023-03-12 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $0.00 | 0 | 46.0K | New | $0 |
| D | 2023-03-14 | 2023-03-12 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $182.76 | -3,530 | 42.5K | -8% | -$645.1K |
| DM | 2022-08-11 | 2022-08-09+ | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale+OE | $183.00 | -10.2K | 38.2K | -21% | -$1.87M |
| DM | 2022-08-11 | 2022-08-09+ | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $43.71 | +10.2K | 38.2K | +36% | +$445.8K |
| DM | 2022-03-16 | 2022-03-14+ | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | M - OptEx | $9.79 | +7,500 | 43.2K | +21% | +$73.4K |
| DM | 2022-03-16 | 2022-03-14+ | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | F - Tax | $158.05 | -4,834 | 38.2K | -11% | -$764.0K |
| D | 2022-03-16 | 2022-03-16 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | S - Sale+OE | $162.00 | -7,500 | 35.7K | -17% | -$1.22M |
| D | 2022-03-16 | 2022-03-14 | AJG | Arthur J. Gallagher & Co. | Bay Walter D. | GC | A - Grant | $0.00 | +8,450 | 22.8K | +59% | $0 |
Purchase Sale Sale after option exercise All abbreviations