AmpliTech Group, Inc. (AMPG)
NASDAQ: AMPG · Real-Time Price · USD
3.400
-0.005 (-0.15%)
At close: Sep 18, 2026, 4:00 PM EDT
3.372
-0.028 (-0.83%)
After-hours: Sep 18, 2026, 7:30 PM EDT
AmpliTech Group Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 18, 2026 | 3.46 | 3.47 | 3.34 | 3.40 | 3.40 | -0.15% | 527,607 |
| Sep 17, 2026 | 3.41 | 3.56 | 3.40 | 3.41 | 3.41 | 1.95% | 804,592 |
| Sep 16, 2026 | 3.31 | 3.41 | 3.31 | 3.34 | 3.34 | 0.30% | 549,659 |
| Sep 15, 2026 | 3.42 | 3.42 | 3.29 | 3.33 | 3.33 | -1.48% | 573,242 |
| Sep 14, 2026 | 3.34 | 3.40 | 3.33 | 3.38 | 3.38 | -2.31% | 653,023 |
| Sep 11, 2026 | 3.51 | 3.55 | 3.43 | 3.46 | 3.46 | 0.29% | 701,606 |
| Sep 10, 2026 | 3.34 | 3.53 | 3.33 | 3.45 | 3.45 | 0.29% | 645,289 |
| Sep 9, 2026 | 3.55 | 3.58 | 3.41 | 3.44 | 3.44 | -3.51% | 378,497 |
| Sep 8, 2026 | 3.45 | 3.61 | 3.41 | 3.57 | 3.57 | 5.79% | 984,685 |
| Sep 4, 2026 | 3.43 | 3.45 | 3.33 | 3.37 | 3.37 | -1.46% | 933,502 |
| Sep 3, 2026 | 3.38 | 3.44 | 3.28 | 3.42 | 3.42 | 3.01% | 790,794 |
| Sep 2, 2026 | 3.28 | 3.43 | 3.26 | 3.32 | 3.32 | 2.47% | 1,365,127 |
| Sep 1, 2026 | 3.29 | 3.32 | 3.20 | 3.24 | 3.24 | -3.86% | 1,096,017 |
| Aug 31, 2026 | 3.31 | 3.43 | 3.30 | 3.37 | 3.37 | 0.30% | 999,104 |
| Aug 28, 2026 | 3.67 | 3.70 | 3.36 | 3.36 | 3.36 | -10.16% | 2,029,910 |
| Aug 27, 2026 | 3.68 | 3.84 | 3.58 | 3.74 | 3.74 | 5.35% | 3,439,693 |
| Aug 26, 2026 | 3.54 | 3.62 | 3.51 | 3.55 | 3.55 | -1.93% | 563,121 |
| Aug 25, 2026 | 3.50 | 3.77 | 3.50 | 3.62 | 3.62 | 4.93% | 2,094,804 |
| Aug 24, 2026 | 3.48 | 3.55 | 3.40 | 3.45 | 3.45 | -0.29% | 931,350 |
| Aug 21, 2026 | 3.50 | 3.56 | 3.41 | 3.46 | 3.46 | 0.58% | 1,472,512 |
| Aug 20, 2026 | 3.54 | 3.60 | 3.37 | 3.44 | 3.44 | -3.64% | 1,450,669 |
| Aug 19, 2026 | 3.56 | 3.59 | 3.42 | 3.57 | 3.57 | 1.13% | 2,274,582 |
| Aug 18, 2026 | 3.58 | 3.72 | 3.51 | 3.53 | 3.53 | -4.59% | 2,725,829 |
| Aug 17, 2026 | 4.09 | 4.15 | 3.66 | 3.70 | 3.70 | -7.38% | 5,302,528 |
| Aug 14, 2026 | 4.37 | 4.40 | 3.93 | 4.00 | 4.00 | -33.31% | 10,197,933 |
| Aug 13, 2026 | 6.27 | 6.50 | 5.88 | 5.99 | 5.99 | -6.55% | 3,334,476 |
| Aug 12, 2026 | 6.41 | 6.50 | 6.17 | 6.41 | 6.41 | 3.22% | 1,852,056 |
| Aug 11, 2026 | 5.96 | 6.30 | 5.81 | 6.21 | 6.21 | 9.14% | 2,240,838 |
| Aug 10, 2026 | 6.10 | 6.20 | 5.68 | 5.69 | 5.69 | -1.90% | 2,015,270 |
| Aug 7, 2026 | 5.65 | 5.87 | 5.51 | 5.80 | 5.80 | 6.81% | 1,729,465 |
| Aug 6, 2026 | 5.14 | 5.61 | 5.05 | 5.43 | 5.43 | 0.93% | 1,577,346 |
| Aug 5, 2026 | 5.42 | 5.55 | 5.14 | 5.38 | 5.38 | -2.71% | 1,235,646 |
| Aug 4, 2026 | 5.15 | 5.58 | 4.96 | 5.53 | 5.53 | 15.69% | 1,934,452 |
| Aug 3, 2026 | 4.55 | 4.81 | 4.34 | 4.78 | 4.78 | 2.80% | 1,410,629 |
| Jul 31, 2026 | 5.00 | 5.03 | 4.57 | 4.65 | 4.65 | -5.30% | 1,033,861 |
| Jul 30, 2026 | 4.80 | 5.07 | 4.50 | 4.91 | 4.91 | 6.51% | 2,168,508 |
| Jul 29, 2026 | 4.90 | 5.08 | 4.54 | 4.61 | 4.61 | -5.92% | 1,645,043 |
| Jul 28, 2026 | 4.89 | 5.05 | 4.60 | 4.90 | 4.90 | -3.16% | 2,106,516 |
| Jul 27, 2026 | 5.50 | 5.50 | 4.89 | 5.06 | 5.06 | -6.38% | 2,244,207 |
| Jul 24, 2026 | 6.22 | 6.25 | 5.38 | 5.41 | 5.41 | -14.75% | 2,635,472 |
| Jul 23, 2026 | 6.43 | 6.68 | 6.10 | 6.34 | 6.34 | -2.01% | 1,483,061 |
| Jul 22, 2026 | 5.95 | 6.99 | 5.95 | 6.47 | 6.47 | 6.24% | 2,558,374 |
| Jul 21, 2026 | 6.30 | 6.60 | 5.94 | 6.09 | 6.09 | -2.09% | 1,924,648 |
| Jul 20, 2026 | 6.40 | 6.50 | 5.45 | 6.22 | 6.22 | -6.33% | 3,724,605 |
| Jul 17, 2026 | 6.25 | 7.21 | 6.24 | 6.64 | 6.64 | 3.43% | 2,262,012 |
| Jul 16, 2026 | 6.62 | 6.62 | 6.25 | 6.42 | 6.42 | -2.87% | 1,571,564 |
| Jul 15, 2026 | 7.43 | 7.65 | 6.40 | 6.61 | 6.61 | -5.97% | 2,863,150 |
| Jul 14, 2026 | 6.42 | 7.19 | 6.42 | 7.03 | 7.03 | 10.36% | 3,169,580 |
| Jul 13, 2026 | 6.52 | 6.79 | 5.97 | 6.37 | 6.37 | -4.78% | 2,514,447 |
| Jul 10, 2026 | 6.57 | 6.80 | 6.22 | 6.69 | 6.69 | 1.98% | 1,500,429 |