NASDAQ:ALGM | Historical Stock Price | ALLEGRO MICROSYSTEMS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2020-10-29 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$15.70$20.95$27.95$37.29$49.74$66.362020-10-292026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2024

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2024-12-31$21.86$21.861,908,300
2024-12-30$21.58$21.581,509,400
2024-12-27$22.29$22.291,352,200
2024-12-26$22.27$22.27770,600
2024-12-24$22.26$22.26469,500
2024-12-23$22.36$22.361,375,100
2024-12-20$21.59$21.598,763,600
2024-12-19$21.07$21.072,048,000
2024-12-18$21.04$21.041,927,500
2024-12-17$22.07$22.071,755,100
2024-12-16$22.38$22.381,985,900
2024-12-13$22.00$22.001,912,600
2024-12-12$21.64$21.641,128,300
2024-12-11$21.96$21.961,724,600
2024-12-10$21.04$21.042,078,400
2024-12-09$21.36$21.361,502,600
2024-12-06$21.21$21.211,287,900
2024-12-05$20.83$20.831,775,900
2024-12-04$21.25$21.252,257,700
2024-12-03$21.88$21.881,715,200
2024-12-02$22.52$22.521,374,400
2024-11-29$21.73$21.73591,300
2024-11-27$21.48$21.48950,000
2024-11-26$21.57$21.572,158,700
2024-11-25$22.33$22.332,640,700
2024-11-22$21.31$21.313,153,000
2024-11-21$20.75$20.756,258,500
2024-11-20$20.14$20.142,167,500
2024-11-19$19.49$19.491,734,700
2024-11-18$19.24$19.241,987,300
2024-11-15$19.07$19.072,267,100
2024-11-14$19.83$19.832,150,000
2024-11-13$20.03$20.031,253,400
2024-11-12$20.52$20.521,059,800
2024-11-11$20.86$20.861,339,100
2024-11-08$21.73$21.731,431,900
2024-11-07$22.16$22.161,222,700
2024-11-06$22.01$22.011,513,900
2024-11-05$20.64$20.641,704,000
2024-11-04$20.28$20.281,733,200
2024-11-01$21.10$21.102,519,400
2024-10-31$20.84$20.844,230,500
2024-10-30$22.22$22.222,735,300
2024-10-29$23.82$23.822,155,000
2024-10-28$23.55$23.551,668,000
2024-10-25$23.04$23.042,894,100
2024-10-24$21.58$21.581,782,100
2024-10-23$20.81$20.811,995,800
2024-10-22$20.19$20.191,067,600
2024-10-21$19.97$19.972,085,000
2024-10-18$20.71$20.711,000,200
2024-10-17$20.62$20.621,139,500
2024-10-16$20.51$20.511,290,300
2024-10-15$20.46$20.461,093,600
2024-10-14$21.59$21.591,113,300
2024-10-11$21.25$21.251,377,600
2024-10-10$20.54$20.541,804,700
2024-10-09$20.81$20.812,221,500
2024-10-08$20.77$20.771,607,100
2024-10-07$21.05$21.052,253,400
2024-10-04$21.45$21.452,419,100
2024-10-03$21.09$21.092,038,000
2024-10-02$21.70$21.702,430,500
2024-10-01$22.04$22.041,701,800
2024-09-30$23.30$23.302,403,600
2024-09-27$24.31$24.311,521,500
2024-09-26$23.97$23.971,356,500
2024-09-25$22.75$22.751,596,900
2024-09-24$23.04$23.042,021,800
2024-09-23$22.08$22.082,484,900
2024-09-20$22.69$22.6919,368,900
2024-09-19$23.79$23.792,740,700
2024-09-18$23.18$23.182,902,600
2024-09-17$22.96$22.961,854,600
2024-09-16$22.68$22.682,313,000
2024-09-13$22.44$22.442,280,500
2024-09-12$21.13$21.131,762,500
2024-09-11$21.82$21.823,965,600
2024-09-10$21.62$21.622,491,800
2024-09-09$22.17$22.173,092,100
2024-09-06$21.27$21.271,653,300
2024-09-05$22.66$22.662,010,400
2024-09-04$22.67$22.671,462,900
2024-09-03$23.19$23.192,175,700
2024-08-30$24.53$24.531,432,500
2024-08-29$24.42$24.421,089,100
2024-08-28$24.04$24.042,212,500
2024-08-27$24.59$24.591,937,800
2024-08-26$24.46$24.461,103,100
2024-08-23$24.99$24.991,124,100
2024-08-22$24.30$24.301,338,100
2024-08-21$25.24$25.241,540,600
2024-08-20$25.05$25.05845,900
2024-08-19$25.40$25.401,139,900
2024-08-16$24.96$24.961,558,000
2024-08-15$25.12$25.122,623,100
2024-08-14$23.66$23.661,783,400
2024-08-13$23.28$23.281,723,800
2024-08-12$22.66$22.661,552,300
2024-08-09$22.82$22.822,221,700
2024-08-08$22.94$22.942,882,100
2024-08-07$20.48$20.481,921,600
2024-08-06$21.30$21.301,828,000
2024-08-05$21.40$21.402,292,400
2024-08-02$22.79$22.794,494,100
2024-08-01$24.17$24.175,246,900
2024-07-31$24.04$24.043,986,200
2024-07-30$22.43$22.432,290,600
2024-07-29$23.75$23.754,143,200
2024-07-26$24.15$24.158,853,600
2024-07-25$24.31$24.3114,986,900
2024-07-24$24.70$24.705,060,500
2024-07-23$27.66$27.661,628,300
2024-07-22$28.89$28.891,797,300
2024-07-19$28.79$28.791,343,400
2024-07-18$30.86$30.861,066,800
2024-07-17$31.78$31.781,038,000
2024-07-16$33.15$33.153,021,900
2024-07-15$31.72$31.721,011,000
2024-07-12$31.43$31.431,027,200
2024-07-11$31.32$31.32983,000
2024-07-10$32.03$32.03943,600
2024-07-09$31.09$31.09730,200
2024-07-08$31.40$31.40866,500
2024-07-05$30.74$30.74855,100
2024-07-03$30.62$30.621,271,500
2024-07-02$29.53$29.531,245,000
2024-07-01$27.93$27.93843,100
2024-06-28$28.24$28.243,623,000
2024-06-27$28.19$28.19859,000
2024-06-26$28.46$28.461,587,700
2024-06-25$27.81$27.811,204,600
2024-06-24$27.25$27.251,112,500
2024-06-21$27.67$27.672,442,700
2024-06-20$27.88$27.881,907,600
2024-06-18$28.27$28.271,350,100
2024-06-17$28.21$28.211,104,200
2024-06-14$28.02$28.021,665,500
2024-06-13$29.12$29.121,137,800
2024-06-12$29.59$29.591,812,800
2024-06-11$28.99$28.992,745,400
2024-06-10$30.04$30.04717,600
2024-06-07$29.39$29.39989,100
2024-06-06$29.45$29.45582,100
2024-06-05$29.52$29.52716,500
2024-06-04$28.97$28.971,116,800
2024-06-03$29.27$29.271,349,700
2024-05-31$30.14$30.141,452,300
2024-05-30$29.77$29.77664,500
2024-05-29$29.86$29.86864,500
2024-05-28$30.79$30.791,074,500
2024-05-24$30.61$30.61577,400
2024-05-23$30.09$30.091,542,900
2024-05-22$30.24$30.241,397,700
2024-05-21$28.77$28.771,194,300
2024-05-20$30.05$30.051,312,600
2024-05-17$29.65$29.651,001,100
2024-05-16$29.75$29.751,361,900
2024-05-15$29.90$29.901,589,500
2024-05-14$28.54$28.541,246,700
2024-05-13$27.27$27.271,679,000
2024-05-10$26.76$26.762,747,000
2024-05-09$27.67$27.677,510,500
2024-05-08$29.36$29.361,097,400
2024-05-07$30.29$30.29849,400
2024-05-06$30.09$30.09701,600
2024-05-03$29.97$29.97702,900
2024-05-02$29.60$29.601,201,100
2024-05-01$28.81$28.811,210,400
2024-04-30$29.69$29.691,849,000
2024-04-29$30.25$30.251,415,300
2024-04-26$30.10$30.101,250,700
2024-04-25$29.13$29.131,162,900
2024-04-24$28.77$28.772,145,800
2024-04-23$26.57$26.571,215,100
2024-04-22$26.21$26.212,487,700
2024-04-19$26.09$26.091,724,700
2024-04-18$26.41$26.411,531,800
2024-04-17$27.18$27.181,187,100
2024-04-16$27.00$27.001,308,800
2024-04-15$26.26$26.26839,300
2024-04-12$26.84$26.841,228,100
2024-04-11$28.20$28.201,213,800
2024-04-10$27.03$27.031,061,300
2024-04-09$27.96$27.961,902,100
2024-04-08$26.65$26.65809,900
2024-04-05$26.36$26.361,215,700
2024-04-04$26.15$26.151,827,600
2024-04-03$25.74$25.741,211,300
2024-04-02$25.68$25.681,193,300
2024-04-01$26.85$26.851,247,200
2024-03-28$26.96$26.961,656,900
2024-03-27$26.80$26.801,346,300
2024-03-26$26.26$26.261,257,000
2024-03-25$26.54$26.54974,700
2024-03-22$26.81$26.811,040,700
2024-03-21$27.73$27.731,392,300
2024-03-20$27.77$27.771,049,200
2024-03-19$27.22$27.221,289,000
2024-03-18$27.78$27.781,372,400
2024-03-15$27.50$27.502,838,900
2024-03-14$28.43$28.431,607,600
2024-03-13$29.62$29.621,193,600
2024-03-12$30.25$30.251,658,700
2024-03-11$30.97$30.971,404,300
2024-03-08$31.18$31.182,018,200
2024-03-07$31.29$31.292,254,000
2024-03-06$30.56$30.561,590,300
2024-03-05$29.42$29.421,571,300
2024-03-04$31.08$31.083,290,900
2024-03-01$32.48$32.482,134,700
2024-02-29$31.49$31.491,608,800
2024-02-28$30.79$30.791,386,200
2024-02-27$30.94$30.942,718,100
2024-02-26$31.72$31.721,280,700
2024-02-23$30.68$30.681,036,500
2024-02-22$31.09$31.091,307,000
2024-02-21$31.05$31.051,471,500
2024-02-20$30.79$30.791,437,000
2024-02-16$31.15$31.151,795,800
2024-02-15$31.25$31.253,481,400
2024-02-14$31.23$31.232,460,100
2024-02-13$30.34$30.341,862,900
2024-02-12$31.64$31.641,511,300
2024-02-09$31.53$31.531,319,800
2024-02-08$30.69$30.691,342,500
2024-02-07$29.84$29.841,398,200
2024-02-06$29.56$29.562,378,700
2024-02-05$29.55$29.552,973,400
2024-02-02$28.66$28.663,505,100
2024-02-01$29.14$29.147,211,400
2024-01-31$25.94$25.942,097,100
2024-01-30$26.56$26.561,319,900
2024-01-29$27.38$27.381,228,400
2024-01-26$26.76$26.761,795,200
2024-01-25$27.56$27.562,066,100
2024-01-24$28.55$28.551,995,800
2024-01-23$28.68$28.681,534,700
2024-01-22$28.19$28.191,494,600
2024-01-19$28.07$28.072,036,200
2024-01-18$26.66$26.661,739,100
2024-01-17$25.56$25.561,213,300
2024-01-16$25.97$25.971,090,100
2024-01-12$26.22$26.221,234,700
2024-01-11$26.89$26.89810,300
2024-01-10$26.98$26.981,647,400
2024-01-09$27.09$27.091,339,600
2024-01-08$27.29$27.291,083,200
2024-01-05$26.81$26.811,804,700
2024-01-04$27.17$27.173,017,500
2024-01-03$29.01$29.011,648,800
2024-01-02$29.50$29.501,284,500