Allegro MicroSystems, Inc. (ALGM)
NASDAQ: ALGM · Real-Time Price · USD
29.23
+0.41 (1.42%)
At close: Dec 5, 2025, 4:00 PM EST
28.87
-0.36 (-1.23%)
After-hours: Dec 5, 2025, 7:41 PM EST
Allegro MicroSystems Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 29.13 | 29.54 | 29.10 | 29.22 | 29.22 | 1.39% | 1,644,874 |
| Dec 4, 2025 | 28.74 | 28.94 | 28.27 | 28.82 | 28.82 | -0.28% | 1,558,789 |
| Dec 3, 2025 | 26.72 | 29.04 | 26.52 | 28.90 | 28.90 | 8.99% | 2,052,898 |
| Dec 2, 2025 | 26.14 | 26.89 | 26.00 | 26.52 | 26.52 | 2.10% | 1,534,241 |
| Dec 1, 2025 | 26.20 | 26.66 | 25.93 | 25.97 | 25.97 | -2.70% | 1,380,818 |
| Nov 28, 2025 | 26.07 | 26.76 | 25.96 | 26.69 | 26.69 | 3.37% | 574,558 |
| Nov 26, 2025 | 25.86 | 26.39 | 25.74 | 25.82 | 25.82 | 0.31% | 1,368,156 |
| Nov 25, 2025 | 24.61 | 25.77 | 24.37 | 25.74 | 25.74 | 3.66% | 1,407,218 |
| Nov 24, 2025 | 24.16 | 24.90 | 23.93 | 24.83 | 24.83 | 3.11% | 1,350,855 |
| Nov 21, 2025 | 22.83 | 24.19 | 22.41 | 24.08 | 24.08 | 5.61% | 1,711,295 |
| Nov 20, 2025 | 23.75 | 24.14 | 22.65 | 22.80 | 22.80 | -1.85% | 2,031,061 |
| Nov 19, 2025 | 23.32 | 23.75 | 23.00 | 23.23 | 23.23 | 0.09% | 1,256,355 |
| Nov 18, 2025 | 23.32 | 23.69 | 22.97 | 23.21 | 23.21 | -1.65% | 1,454,725 |
| Nov 17, 2025 | 24.79 | 24.79 | 23.42 | 23.60 | 23.60 | -4.49% | 1,695,450 |
| Nov 14, 2025 | 24.56 | 25.22 | 24.35 | 24.71 | 24.71 | -2.27% | 1,845,726 |
| Nov 13, 2025 | 26.19 | 26.44 | 24.80 | 25.29 | 25.29 | -4.48% | 2,231,404 |
| Nov 12, 2025 | 26.98 | 27.36 | 26.28 | 26.47 | 26.47 | -0.53% | 2,286,101 |
| Nov 11, 2025 | 27.43 | 27.43 | 26.09 | 26.61 | 26.61 | -3.59% | 2,295,789 |
| Nov 10, 2025 | 27.66 | 27.89 | 26.92 | 27.60 | 27.60 | 2.30% | 1,554,064 |
| Nov 7, 2025 | 26.52 | 27.05 | 26.12 | 26.98 | 26.98 | -0.85% | 1,544,657 |
| Nov 6, 2025 | 27.45 | 27.90 | 26.86 | 27.21 | 27.21 | -0.80% | 1,712,317 |
| Nov 5, 2025 | 27.42 | 28.36 | 27.27 | 27.43 | 27.43 | -0.04% | 1,787,453 |
| Nov 4, 2025 | 28.16 | 28.74 | 27.28 | 27.44 | 27.44 | -5.18% | 2,100,398 |
| Nov 3, 2025 | 30.35 | 30.61 | 28.87 | 28.94 | 28.94 | -3.28% | 2,752,857 |
| Oct 31, 2025 | 30.38 | 31.20 | 29.06 | 29.92 | 29.92 | -1.16% | 4,042,813 |
| Oct 30, 2025 | 33.65 | 33.84 | 28.59 | 30.27 | 30.27 | -1.53% | 5,743,516 |
| Oct 29, 2025 | 31.36 | 31.56 | 30.59 | 30.74 | 30.74 | 0.26% | 2,888,829 |
| Oct 28, 2025 | 30.36 | 31.82 | 30.00 | 30.66 | 30.66 | 0.59% | 2,674,416 |
| Oct 27, 2025 | 31.42 | 32.19 | 30.01 | 30.48 | 30.48 | -1.39% | 3,009,070 |
| Oct 24, 2025 | 31.73 | 31.75 | 30.79 | 30.91 | 30.91 | -0.26% | 2,559,607 |
| Oct 23, 2025 | 30.02 | 31.17 | 29.91 | 30.99 | 30.99 | 0.94% | 3,278,515 |
| Oct 22, 2025 | 30.07 | 31.54 | 30.07 | 30.70 | 30.70 | -1.13% | 3,883,336 |
| Oct 21, 2025 | 30.65 | 31.30 | 30.21 | 31.05 | 31.05 | 1.84% | 2,307,478 |
| Oct 20, 2025 | 29.48 | 30.98 | 29.30 | 30.49 | 30.49 | 4.94% | 1,933,014 |
| Oct 17, 2025 | 29.08 | 29.28 | 28.46 | 29.06 | 29.06 | -0.94% | 1,772,405 |
| Oct 16, 2025 | 29.11 | 29.60 | 29.01 | 29.33 | 29.33 | 1.56% | 2,613,238 |
| Oct 15, 2025 | 28.25 | 29.65 | 27.84 | 28.88 | 28.88 | 4.60% | 3,079,096 |
| Oct 14, 2025 | 26.70 | 28.25 | 26.54 | 27.61 | 27.61 | 0.73% | 1,989,532 |
| Oct 13, 2025 | 26.93 | 27.55 | 26.58 | 27.41 | 27.41 | 5.75% | 1,444,729 |
| Oct 10, 2025 | 27.68 | 27.90 | 25.87 | 25.92 | 25.92 | -6.63% | 2,454,244 |
| Oct 9, 2025 | 28.36 | 28.36 | 27.03 | 27.76 | 27.76 | -1.84% | 2,532,198 |
| Oct 8, 2025 | 27.52 | 28.30 | 27.38 | 28.28 | 28.28 | 2.84% | 3,230,829 |
| Oct 7, 2025 | 28.51 | 28.58 | 26.97 | 27.50 | 27.50 | -2.55% | 1,756,704 |
| Oct 6, 2025 | 28.88 | 28.99 | 27.80 | 28.22 | 28.22 | -0.35% | 1,905,711 |
| Oct 3, 2025 | 28.64 | 28.83 | 28.12 | 28.32 | 28.32 | -0.32% | 1,546,221 |
| Oct 2, 2025 | 28.91 | 28.98 | 28.25 | 28.41 | 28.41 | -0.04% | 1,486,966 |
| Oct 1, 2025 | 28.97 | 29.18 | 28.04 | 28.42 | 28.42 | -2.67% | 1,742,970 |
| Sep 30, 2025 | 29.26 | 29.63 | 28.85 | 29.20 | 29.20 | 0.14% | 1,274,186 |
| Sep 29, 2025 | 30.18 | 30.31 | 29.14 | 29.16 | 29.16 | -1.85% | 1,497,645 |
| Sep 26, 2025 | 30.02 | 30.43 | 29.52 | 29.71 | 29.71 | -0.74% | 966,122 |
| Sep 25, 2025 | 30.44 | 30.64 | 29.73 | 29.93 | 29.93 | -3.67% | 1,343,998 |
| Sep 24, 2025 | 31.40 | 31.74 | 31.00 | 31.07 | 31.07 | -1.08% | 919,164 |
| Sep 23, 2025 | 31.66 | 32.08 | 31.32 | 31.41 | 31.41 | -0.03% | 1,254,109 |
| Sep 22, 2025 | 31.55 | 32.11 | 31.28 | 31.42 | 31.42 | -0.10% | 1,433,536 |
| Sep 19, 2025 | 32.16 | 32.16 | 30.73 | 31.45 | 31.45 | -1.56% | 3,402,888 |
| Sep 18, 2025 | 31.70 | 32.04 | 31.46 | 31.95 | 31.95 | 3.90% | 1,715,522 |
| Sep 17, 2025 | 30.20 | 31.30 | 29.95 | 30.75 | 30.75 | 2.06% | 1,237,273 |
| Sep 16, 2025 | 29.92 | 30.27 | 29.79 | 30.13 | 30.13 | 0.87% | 987,849 |
| Sep 15, 2025 | 29.86 | 30.64 | 29.72 | 29.87 | 29.87 | 0.23% | 1,376,560 |
| Sep 12, 2025 | 30.22 | 30.27 | 29.69 | 29.80 | 29.80 | -0.57% | 1,146,801 |
| Sep 11, 2025 | 30.93 | 31.20 | 29.79 | 29.97 | 29.97 | -1.77% | 1,604,458 |
| Sep 10, 2025 | 30.99 | 31.14 | 30.00 | 30.51 | 30.51 | -1.33% | 2,130,147 |
| Sep 9, 2025 | 30.44 | 30.93 | 30.21 | 30.92 | 30.92 | 1.74% | 1,494,091 |
| Sep 8, 2025 | 30.17 | 30.67 | 29.98 | 30.39 | 30.39 | -0.59% | 1,643,013 |
| Sep 5, 2025 | 30.51 | 30.98 | 30.29 | 30.57 | 30.57 | 1.56% | 1,414,587 |
| Sep 4, 2025 | 29.51 | 30.15 | 28.94 | 30.10 | 30.10 | 0.91% | 1,464,961 |
| Sep 3, 2025 | 30.50 | 30.63 | 29.37 | 29.83 | 29.83 | -2.20% | 1,136,614 |
| Sep 2, 2025 | 30.00 | 30.57 | 29.45 | 30.50 | 30.50 | -1.13% | 1,620,900 |
| Aug 29, 2025 | 31.79 | 31.96 | 30.72 | 30.85 | 30.85 | -3.62% | 1,204,009 |
| Aug 28, 2025 | 31.81 | 33.20 | 31.76 | 32.01 | 32.01 | 1.75% | 2,170,375 |
| Aug 27, 2025 | 31.42 | 31.84 | 31.23 | 31.46 | 31.46 | -0.60% | 1,777,468 |
| Aug 26, 2025 | 31.97 | 32.67 | 31.45 | 31.65 | 31.65 | -0.35% | 1,812,793 |
| Aug 25, 2025 | 32.01 | 32.16 | 31.60 | 31.76 | 31.76 | -1.15% | 842,315 |
| Aug 22, 2025 | 31.22 | 32.93 | 30.94 | 32.13 | 32.13 | 4.05% | 1,366,036 |
| Aug 21, 2025 | 30.10 | 30.92 | 29.98 | 30.88 | 30.88 | 1.31% | 802,760 |
| Aug 20, 2025 | 30.59 | 31.19 | 29.82 | 30.48 | 30.48 | -0.52% | 2,031,204 |
| Aug 19, 2025 | 30.86 | 31.12 | 30.42 | 30.64 | 30.64 | -0.62% | 1,027,977 |
| Aug 18, 2025 | 30.64 | 31.02 | 30.51 | 30.83 | 30.83 | 0.42% | 1,158,087 |
| Aug 15, 2025 | 31.13 | 31.13 | 30.55 | 30.70 | 30.70 | -1.29% | 1,159,770 |
| Aug 14, 2025 | 31.13 | 31.39 | 30.73 | 31.10 | 31.10 | -2.39% | 916,405 |
| Aug 13, 2025 | 32.07 | 32.35 | 31.56 | 31.86 | 31.86 | -0.09% | 1,074,296 |
| Aug 12, 2025 | 30.29 | 32.22 | 30.02 | 31.89 | 31.89 | 6.98% | 1,715,889 |
| Aug 11, 2025 | 30.85 | 30.94 | 29.71 | 29.81 | 29.81 | -3.12% | 1,193,313 |
| Aug 8, 2025 | 30.78 | 31.06 | 30.12 | 30.77 | 30.77 | 0.16% | 1,850,303 |
| Aug 7, 2025 | 31.46 | 31.59 | 30.48 | 30.72 | 30.72 | -0.29% | 1,028,725 |
| Aug 6, 2025 | 30.97 | 31.00 | 30.28 | 30.81 | 30.81 | -1.38% | 1,066,254 |
| Aug 5, 2025 | 31.78 | 31.78 | 30.46 | 31.24 | 31.24 | -0.73% | 1,245,464 |
| Aug 4, 2025 | 31.49 | 31.78 | 31.10 | 31.47 | 31.47 | 0.67% | 1,287,498 |
| Aug 1, 2025 | 31.13 | 31.48 | 30.29 | 31.26 | 31.26 | -0.48% | 2,066,210 |
| Jul 31, 2025 | 32.21 | 32.70 | 30.50 | 31.41 | 31.41 | -7.26% | 3,424,098 |
| Jul 30, 2025 | 34.41 | 34.51 | 33.16 | 33.87 | 33.87 | -0.41% | 2,909,506 |
| Jul 29, 2025 | 34.71 | 35.20 | 33.89 | 34.01 | 34.01 | -1.05% | 1,389,130 |
| Jul 28, 2025 | 34.19 | 34.76 | 33.73 | 34.37 | 34.37 | 1.99% | 1,182,430 |
| Jul 25, 2025 | 32.81 | 33.73 | 32.54 | 33.70 | 33.70 | 2.87% | 1,944,305 |
| Jul 24, 2025 | 33.90 | 34.09 | 32.56 | 32.76 | 32.76 | -3.87% | 3,487,225 |
| Jul 23, 2025 | 35.61 | 35.61 | 33.58 | 34.08 | 34.08 | -5.96% | 3,466,625 |
| Jul 22, 2025 | 36.47 | 37.03 | 35.86 | 36.24 | 36.24 | -1.23% | 2,240,624 |
| Jul 21, 2025 | 37.25 | 37.85 | 36.63 | 36.69 | 36.69 | 0.19% | 1,828,060 |
| Jul 18, 2025 | 36.16 | 36.95 | 35.76 | 36.62 | 36.62 | 2.32% | 1,694,962 |
| Jul 17, 2025 | 35.30 | 36.36 | 35.22 | 35.79 | 35.79 | 0.90% | 2,276,335 |