Arthur J. Gallagher & Co. (AJG)
NYSE: AJG · Real-Time Price · USD
270.98
+12.61 (4.88%)
At close: Oct 22, 2026, 4:00 PM EDT
271.00
+0.02 (0.01%)
After-hours: Oct 22, 2026, 5:47 PM EDT
Arthur J. Gallagher & Co. Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 22, 2026 | 260.00 | 271.01 | 257.52 | 270.98 | 270.98 | 4.88% | 2,138,909 |
| Oct 21, 2026 | 259.81 | 259.81 | 256.91 | 258.37 | 258.37 | -0.34% | 1,380,372 |
| Oct 20, 2026 | 256.59 | 261.91 | 256.10 | 259.26 | 259.26 | 2.47% | 1,692,713 |
| Oct 19, 2026 | 252.12 | 254.16 | 249.73 | 253.01 | 253.01 | -0.73% | 1,082,868 |
| Oct 16, 2026 | 252.02 | 255.40 | 250.89 | 254.88 | 254.88 | 1.91% | 1,205,573 |
| Oct 15, 2026 | 243.59 | 252.76 | 242.44 | 250.10 | 250.10 | 5.51% | 2,188,430 |
| Oct 14, 2026 | 234.00 | 238.82 | 231.86 | 237.04 | 237.04 | 1.78% | 1,005,780 |
| Oct 13, 2026 | 234.51 | 235.85 | 232.09 | 232.90 | 232.90 | -0.44% | 861,863 |
| Oct 12, 2026 | 233.54 | 234.59 | 232.82 | 233.92 | 233.92 | 0.52% | 696,192 |
| Oct 9, 2026 | 233.74 | 235.94 | 231.50 | 232.70 | 232.70 | -0.58% | 960,807 |
| Oct 8, 2026 | 227.95 | 234.79 | 225.85 | 234.05 | 234.05 | 3.06% | 1,888,225 |
| Oct 7, 2026 | 228.93 | 231.67 | 226.39 | 227.10 | 227.10 | -1.20% | 1,077,848 |
| Oct 6, 2026 | 225.81 | 230.73 | 225.08 | 229.85 | 229.85 | 1.15% | 1,152,364 |
| Oct 5, 2026 | 225.00 | 227.54 | 219.65 | 227.24 | 227.24 | 0.50% | 1,146,035 |
| Oct 2, 2026 | 230.79 | 232.76 | 225.27 | 226.11 | 226.11 | -2.46% | 1,386,723 |
| Oct 1, 2026 | 229.43 | 234.13 | 229.29 | 231.82 | 231.82 | 1.63% | 2,860,186 |
| Sep 30, 2026 | 227.44 | 229.49 | 225.55 | 228.11 | 228.11 | 0.16% | 1,581,738 |
| Sep 29, 2026 | 227.32 | 229.35 | 225.11 | 227.75 | 227.75 | -0.75% | 1,409,226 |
| Sep 28, 2026 | 230.00 | 232.81 | 226.95 | 229.46 | 229.46 | -0.71% | 1,484,984 |
| Sep 25, 2026 | 226.73 | 232.23 | 225.87 | 231.10 | 231.10 | 1.75% | 1,496,873 |
| Sep 24, 2026 | 230.72 | 233.19 | 226.26 | 227.13 | 227.13 | -1.09% | 1,743,083 |
| Sep 23, 2026 | 228.70 | 231.31 | 227.91 | 229.64 | 229.64 | -0.35% | 1,841,440 |
| Sep 22, 2026 | 236.29 | 236.60 | 226.79 | 230.45 | 230.45 | -2.60% | 1,623,609 |
| Sep 21, 2026 | 239.72 | 240.71 | 236.58 | 236.61 | 236.61 | -1.20% | 1,281,614 |
| Sep 18, 2026 | 240.00 | 241.93 | 238.75 | 239.48 | 239.48 | -0.80% | 1,605,620 |
| Sep 17, 2026 | 243.18 | 244.73 | 240.08 | 241.41 | 241.41 | -0.97% | 932,374 |
| Sep 16, 2026 | 246.21 | 246.41 | 241.38 | 243.78 | 243.78 | -1.72% | 1,180,419 |
| Sep 15, 2026 | 251.18 | 254.59 | 247.87 | 248.04 | 248.04 | -2.08% | 1,639,756 |
| Sep 14, 2026 | 245.58 | 254.22 | 245.58 | 253.30 | 253.30 | 5.40% | 1,628,841 |
| Sep 11, 2026 | 245.95 | 246.82 | 240.32 | 240.32 | 240.32 | -1.23% | 1,065,866 |
| Sep 10, 2026 | 245.22 | 247.55 | 242.70 | 243.31 | 243.31 | -0.40% | 1,054,927 |
| Sep 9, 2026 | 250.20 | 251.34 | 243.41 | 244.28 | 244.28 | -2.85% | 1,204,825 |
| Sep 8, 2026 | 257.68 | 258.39 | 251.29 | 251.45 | 251.45 | -4.02% | 1,106,309 |
| Sep 4, 2026 | 263.33 | 266.71 | 261.97 | 262.69 | 261.99 | -1.49% | 1,013,038 |
| Sep 3, 2026 | 265.81 | 271.27 | 264.69 | 266.66 | 265.95 | 0.83% | 1,499,432 |
| Sep 2, 2026 | 263.50 | 266.21 | 261.25 | 264.46 | 263.76 | 0.94% | 1,847,947 |
| Sep 1, 2026 | 264.43 | 267.23 | 260.04 | 262.00 | 261.30 | -0.06% | 2,024,544 |
| Aug 31, 2026 | 264.13 | 267.07 | 261.06 | 262.15 | 261.45 | -2.02% | 1,496,705 |
| Aug 28, 2026 | 260.50 | 268.91 | 260.50 | 267.56 | 266.85 | 2.85% | 1,151,325 |
| Aug 27, 2026 | 260.60 | 264.08 | 259.26 | 260.15 | 259.46 | -1.84% | 977,919 |
| Aug 26, 2026 | 267.64 | 272.78 | 263.58 | 265.03 | 264.32 | -1.30% | 1,426,516 |
| Aug 25, 2026 | 269.84 | 272.79 | 266.96 | 268.51 | 267.79 | -1.28% | 1,752,845 |
| Aug 24, 2026 | 265.00 | 272.37 | 262.49 | 271.99 | 271.27 | 3.10% | 1,531,388 |
| Aug 21, 2026 | 259.44 | 264.21 | 257.68 | 263.81 | 263.11 | 1.62% | 1,154,641 |
| Aug 20, 2026 | 256.45 | 262.17 | 255.11 | 259.61 | 258.92 | 0.84% | 1,340,744 |
| Aug 19, 2026 | 249.44 | 260.28 | 249.11 | 257.45 | 256.76 | 3.66% | 1,553,375 |
| Aug 18, 2026 | 250.02 | 255.28 | 248.05 | 248.36 | 247.70 | 0.16% | 1,287,038 |
| Aug 17, 2026 | 248.99 | 253.57 | 246.88 | 247.97 | 247.31 | -1.29% | 853,840 |
| Aug 14, 2026 | 253.16 | 254.39 | 250.00 | 251.21 | 250.54 | -0.90% | 895,780 |
| Aug 13, 2026 | 256.35 | 257.12 | 250.00 | 253.49 | 252.81 | -0.77% | 1,011,593 |