AmpliTech Group, Inc. (AMPG)
NASDAQ: AMPG · Real-Time Price · USD
4.275
+0.455 (11.91%)
At close: Oct 13, 2025, 4:00 PM EDT
4.100
-0.175 (-4.09%)
Pre-market: Oct 14, 2025, 9:20 AM EDT
AmpliTech Group Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 13, 2025 | 4.01 | 4.30 | 3.85 | 4.28 | 4.28 | 11.91% | 614,671 |
| Oct 10, 2025 | 4.56 | 4.56 | 3.78 | 3.82 | 3.82 | -15.86% | 1,380,556 |
| Oct 9, 2025 | 4.32 | 4.57 | 4.21 | 4.54 | 4.54 | 5.09% | 616,775 |
| Oct 8, 2025 | 4.34 | 4.56 | 4.26 | 4.32 | 4.32 | 0.47% | 475,377 |
| Oct 7, 2025 | 4.56 | 4.56 | 4.20 | 4.30 | 4.30 | -3.80% | 479,846 |
| Oct 6, 2025 | 4.41 | 4.63 | 4.33 | 4.47 | 4.47 | 3.47% | 546,305 |
| Oct 3, 2025 | 4.53 | 4.60 | 4.14 | 4.32 | 4.32 | -3.36% | 1,125,751 |
| Oct 2, 2025 | 4.00 | 4.50 | 3.97 | 4.47 | 4.47 | 13.16% | 915,341 |
| Oct 1, 2025 | 3.90 | 4.08 | 3.86 | 3.95 | 3.95 | 1.54% | 283,783 |
| Sep 30, 2025 | 3.99 | 3.99 | 3.78 | 3.89 | 3.89 | 0.52% | 406,637 |
| Sep 29, 2025 | 3.95 | 4.07 | 3.84 | 3.87 | 3.87 | 0.78% | 356,402 |
| Sep 26, 2025 | 4.04 | 4.06 | 3.81 | 3.84 | 3.84 | -4.00% | 442,352 |
| Sep 25, 2025 | 3.89 | 4.11 | 3.83 | 4.00 | 4.00 | -3.38% | 656,620 |
| Sep 24, 2025 | 4.29 | 4.50 | 4.13 | 4.14 | 4.14 | -2.13% | 533,128 |
| Sep 23, 2025 | 4.64 | 4.65 | 4.22 | 4.23 | 4.23 | -7.24% | 860,846 |
| Sep 22, 2025 | 4.80 | 4.89 | 4.52 | 4.56 | 4.56 | -3.59% | 1,142,345 |
| Sep 19, 2025 | 4.17 | 4.79 | 4.17 | 4.73 | 4.73 | 14.25% | 1,604,159 |
| Sep 18, 2025 | 4.16 | 4.33 | 4.11 | 4.14 | 4.14 | 0.98% | 465,115 |
| Sep 17, 2025 | 4.22 | 4.30 | 4.03 | 4.10 | 4.10 | -5.96% | 744,439 |
| Sep 16, 2025 | 4.25 | 4.49 | 4.14 | 4.36 | 4.36 | 5.31% | 1,116,538 |
| Sep 15, 2025 | 4.04 | 4.15 | 3.88 | 4.14 | 4.14 | 2.22% | 661,619 |
| Sep 12, 2025 | 3.85 | 4.16 | 3.78 | 4.05 | 4.05 | 6.02% | 622,704 |
| Sep 11, 2025 | 3.84 | 4.03 | 3.76 | 3.82 | 3.82 | -0.78% | 371,377 |
| Sep 10, 2025 | 4.05 | 4.15 | 3.85 | 3.85 | 3.85 | -5.87% | 350,905 |
| Sep 9, 2025 | 3.80 | 4.15 | 3.75 | 4.09 | 4.09 | 7.35% | 403,902 |
| Sep 8, 2025 | 3.87 | 3.89 | 3.70 | 3.81 | 3.81 | -0.26% | 397,048 |
| Sep 5, 2025 | 4.26 | 4.26 | 3.82 | 3.82 | 3.82 | -10.33% | 787,146 |
| Sep 4, 2025 | 3.92 | 4.27 | 3.81 | 4.26 | 4.26 | 7.30% | 815,161 |
| Sep 3, 2025 | 4.19 | 4.29 | 3.94 | 3.97 | 3.97 | -2.46% | 1,589,049 |
| Sep 2, 2025 | 3.78 | 4.09 | 3.61 | 4.07 | 4.07 | 7.11% | 1,359,099 |
| Aug 29, 2025 | 3.63 | 3.90 | 3.42 | 3.80 | 3.80 | 11.11% | 3,054,508 |
| Aug 28, 2025 | 3.08 | 3.55 | 3.07 | 3.42 | 3.42 | 11.76% | 1,677,381 |
| Aug 27, 2025 | 3.10 | 3.18 | 3.05 | 3.06 | 3.06 | -3.77% | 276,066 |
| Aug 26, 2025 | 3.18 | 3.33 | 3.12 | 3.18 | 3.18 | 0.63% | 430,343 |
| Aug 25, 2025 | 3.21 | 3.30 | 3.08 | 3.16 | 3.16 | -1.56% | 432,853 |
| Aug 22, 2025 | 3.01 | 3.30 | 3.01 | 3.21 | 3.21 | 4.22% | 623,217 |
| Aug 21, 2025 | 2.96 | 3.14 | 2.96 | 3.08 | 3.08 | 2.33% | 243,134 |
| Aug 20, 2025 | 2.95 | 3.05 | 2.84 | 3.01 | 3.01 | 1.69% | 393,759 |
| Aug 19, 2025 | 3.16 | 3.30 | 2.96 | 2.96 | 2.96 | -6.03% | 614,261 |
| Aug 18, 2025 | 3.09 | 3.19 | 2.94 | 3.15 | 3.15 | 1.61% | 785,235 |
| Aug 15, 2025 | 3.50 | 3.60 | 3.00 | 3.10 | 3.10 | -12.68% | 2,230,216 |
| Aug 14, 2025 | 3.59 | 3.60 | 3.39 | 3.55 | 3.55 | -3.01% | 2,728,530 |
| Aug 13, 2025 | 3.45 | 3.72 | 3.42 | 3.66 | 3.66 | 7.65% | 1,370,898 |
| Aug 12, 2025 | 3.27 | 3.66 | 3.19 | 3.40 | 3.40 | 3.34% | 1,265,851 |
| Aug 11, 2025 | 2.95 | 3.29 | 2.89 | 3.29 | 3.29 | 13.06% | 582,154 |
| Aug 8, 2025 | 2.83 | 3.00 | 2.79 | 2.91 | 2.91 | 3.19% | 174,372 |
| Aug 7, 2025 | 2.89 | 2.90 | 2.78 | 2.82 | 2.82 | -3.42% | 264,115 |
| Aug 6, 2025 | 2.91 | 2.98 | 2.83 | 2.92 | 2.92 | -1.35% | 295,864 |
| Aug 5, 2025 | 3.08 | 3.19 | 2.91 | 2.96 | 2.96 | -3.58% | 310,568 |
| Aug 4, 2025 | 2.86 | 3.13 | 2.80 | 3.07 | 3.07 | 7.72% | 554,454 |