NASDAQ:ALGM | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$36.2671,373
2026-09-03$35.31112,985
2026-09-02$35.8649,008
2026-09-01$35.5569,409
2026-08-31$36.07102,152
2026-08-28$36.7182,599
2026-08-27$37.59$37.591,681,600$38.0898,261
2026-08-26$36.89$36.891,872,800$37.5992,299
2026-08-25$37.44$37.442,782,600$36.70159,859
2026-08-24$35.63$35.632,131,500$36.21121,117
2026-08-21$37.16$37.162,342,300$37.63223,703
2026-08-20$37.19$37.192,220,600$38.2986,133
2026-08-19$38.35$38.352,503,400$39.89105,715
2026-08-18$39.39$39.392,581,600$43.05172,970
2026-08-17$44.25$44.251,538,000$45.4771,384
2026-08-14$44.39$44.39982,500$44.7053,775
2026-08-13$44.13$44.132,164,600$42.94112,653
2026-08-12$42.47$42.471,088,600$44.6769,476
2026-08-11$42.52$42.521,126,800$43.2366,322
2026-08-10$42.46$42.461,733,200$44.2583,504
2026-08-07$43.77$43.771,607,000$43.80112,419
2026-08-06$42.46$42.461,828,300$40.9461,762
2026-08-05$41.80$41.801,727,200$42.1368,491
2026-08-04$42.85$42.852,726,400$44.00253,932
2026-08-03$41.52$41.522,506,000$39.69154,855
2026-07-31$41.50$41.503,763,900$42.03226,023
2026-07-30$41.45$41.456,152,700$42.31330,629
2026-07-29$42.21$42.213,309,500$43.74246,942
2026-07-28$44.52$44.522,320,400$43.45137,504
2026-07-27$46.80$46.802,383,500$46.91132,394
2026-07-24$46.03$46.031,574,100$49.8796,682
2026-07-23$50.07$50.073,114,200$49.75159,352
2026-07-22$49.87$49.871,190,000$48.0282,574
2026-07-21$49.35$49.351,292,600$49.1850,513
2026-07-20$46.36$46.361,928,000$47.51110,160
2026-07-17$46.48$46.481,588,700
2026-07-16$47.12$47.121,994,700
2026-07-15$50.03$50.032,018,100
2026-07-14$52.32$52.321,838,800
2026-07-13$50.86$50.861,561,200
2026-07-10$54.87$54.872,326,600
2026-07-09$57.38$57.384,709,900
2026-07-08$51.47$51.473,470,400
2026-07-07$51.55$51.553,846,200
2026-07-06$56.56$56.564,571,600
2026-07-02$55.49$55.494,700,300
2026-07-01$63.20$63.203,843,600
2026-06-30$69.62$69.624,379,500
2026-06-29$66.37$66.376,986,500
2026-06-26$57.89$57.8912,165,500
2026-06-25$60.16$60.163,602,900
2026-06-24$55.42$55.422,614,900
2026-06-23$55.52$55.523,406,700
2026-06-22$61.58$61.583,464,000
2026-06-18$59.00$59.004,705,500
2026-06-17$53.98$53.984,039,700
2026-06-16$53.29$53.293,534,600
2026-06-15$55.00$55.002,663,100
2026-06-12$50.40$50.401,621,400
2026-06-11$47.96$47.961,424,800
2026-06-10$44.54$44.541,598,800
2026-06-09$46.63$46.631,811,000
2026-06-08$48.19$48.192,070,500
2026-06-05$46.39$46.392,137,400
2026-06-04$53.62$53.622,090,800
2026-06-03$53.11$53.112,881,800
2026-06-02$50.33$50.332,339,300
2026-06-01$47.13$47.132,144,100
2026-05-29$47.87$47.873,650,300
2026-05-28$51.10$51.102,035,500
2026-05-27$49.00$49.001,994,600
2026-05-26$50.76$50.763,012,100
2026-05-22$45.95$45.951,943,900
2026-05-21$44.70$44.701,786,200
2026-05-20$44.33$44.332,462,200
2026-05-19$41.65$41.652,005,300
2026-05-18$41.35$41.352,378,300
2026-05-15$43.10$43.103,526,100
2026-05-14$44.97$44.971,988,600
2026-05-13$45.97$45.972,105,000
2026-05-12$45.87$45.873,507,500
2026-05-11$48.39$48.393,466,400
2026-05-08$48.95$48.952,540,500
2026-05-07$47.93$47.935,318,800
2026-05-06$51.37$51.373,575,400
2026-05-05$49.68$49.682,970,200
2026-05-04$49.48$49.482,283,900
2026-05-01$48.98$48.982,473,300
2026-04-30$48.50$48.503,475,100
2026-04-29$44.07$44.072,696,000
2026-04-28$41.12$41.122,406,000
2026-04-27$43.47$43.471,794,200
2026-04-24$44.13$44.131,945,100
2026-04-23$43.61$43.612,842,900
2026-04-22$42.27$42.271,742,700
2026-04-21$41.28$41.281,712,500
2026-04-20$40.65$40.651,690,700
2026-04-17$40.00$40.001,568,800
2026-04-16$38.22$38.221,553,800
2026-04-15$37.25$37.251,387,700