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 — 2023

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2023-12-29$30.27$30.27904,000
2023-12-28$30.84$30.84504,400
2023-12-27$31.09$31.09755,400
2023-12-26$31.20$31.20962,700
2023-12-22$30.90$30.90888,500
2023-12-21$30.63$30.63909,200
2023-12-20$30.00$30.001,581,600
2023-12-19$30.82$30.82780,500
2023-12-18$30.69$30.691,030,100
2023-12-15$31.21$31.214,121,600
2023-12-14$30.85$30.852,817,200
2023-12-13$29.28$29.282,232,500
2023-12-12$27.41$27.411,042,100
2023-12-11$27.36$27.361,373,200
2023-12-08$26.84$26.84744,300
2023-12-07$26.89$26.89709,800
2023-12-06$26.32$26.32889,100
2023-12-05$26.60$26.60871,700
2023-12-04$27.33$27.33993,500
2023-12-01$27.28$27.281,614,400
2023-11-30$27.22$27.22745,200
2023-11-29$27.55$27.55901,000
2023-11-28$27.33$27.33997,200
2023-11-27$27.53$27.53881,800
2023-11-24$27.83$27.83426,800
2023-11-22$28.22$28.22639,200
2023-11-21$28.25$28.25988,100
2023-11-20$28.74$28.741,306,700
2023-11-17$28.04$28.041,232,700
2023-11-16$28.38$28.381,329,900
2023-11-15$28.64$28.642,488,600
2023-11-14$27.62$27.621,776,000
2023-11-13$25.79$25.791,102,300
2023-11-10$25.82$25.821,523,500
2023-11-09$24.86$24.86733,500
2023-11-08$25.70$25.70812,600
2023-11-07$26.16$26.161,421,700
2023-11-06$26.05$26.051,428,300
2023-11-03$26.09$26.091,517,900
2023-11-02$25.81$25.812,564,500
2023-11-01$25.76$25.763,712,100
2023-10-31$25.96$25.962,955,300
2023-10-30$26.43$26.432,103,900
2023-10-27$27.63$27.63839,400
2023-10-26$27.69$27.69948,500
2023-10-25$27.67$27.67774,000
2023-10-24$28.78$28.78769,800
2023-10-23$28.34$28.34855,500
2023-10-20$28.85$28.851,208,500
2023-10-19$29.34$29.34915,400
2023-10-18$30.00$30.00986,400
2023-10-17$30.64$30.641,456,100
2023-10-16$30.04$30.04924,000
2023-10-13$29.52$29.521,106,300
2023-10-12$30.52$30.52817,600
2023-10-11$30.81$30.811,400,000
2023-10-10$31.07$31.07903,300
2023-10-09$30.42$30.42641,400
2023-10-06$30.92$30.921,065,900
2023-10-05$30.37$30.37824,700
2023-10-04$30.92$30.921,663,100
2023-10-03$29.98$29.983,409,800
2023-10-02$31.89$31.891,313,500
2023-09-29$31.94$31.94966,100
2023-09-28$32.44$32.441,316,000
2023-09-27$31.86$31.861,393,800
2023-09-26$31.49$31.491,074,800
2023-09-25$32.17$32.171,126,300
2023-09-22$31.90$31.901,800,500
2023-09-21$31.74$31.74778,000
2023-09-20$32.52$32.52846,900
2023-09-19$33.02$33.02704,200
2023-09-18$33.20$33.201,053,300
2023-09-15$32.79$32.792,838,800
2023-09-14$33.81$33.811,268,200
2023-09-13$33.95$33.951,280,400
2023-09-12$34.00$34.001,314,000
2023-09-11$34.15$34.151,528,600
2023-09-08$34.80$34.801,177,000
2023-09-07$35.07$35.072,220,900
2023-09-06$35.99$35.993,604,800
2023-09-05$37.86$37.86882,900
2023-09-01$38.39$38.39719,200
2023-08-31$38.25$38.251,170,500
2023-08-30$38.48$38.48827,500
2023-08-29$38.65$38.65771,200
2023-08-28$37.66$37.66925,900
2023-08-25$37.54$37.541,102,000
2023-08-24$37.66$37.66865,400
2023-08-23$39.34$39.34617,500
2023-08-22$38.58$38.581,042,800
2023-08-21$38.73$38.731,048,200
2023-08-18$37.61$37.61897,700
2023-08-17$37.39$37.39955,600
2023-08-16$38.08$38.08877,300
2023-08-15$38.91$38.91924,500
2023-08-14$39.83$39.831,054,400
2023-08-11$39.27$39.271,153,700
2023-08-10$40.18$40.181,410,800
2023-08-09$40.73$40.731,650,000
2023-08-08$41.34$41.342,339,000
2023-08-07$42.04$42.041,580,800
2023-08-04$42.51$42.511,755,300
2023-08-03$43.13$43.131,815,200
2023-08-02$43.22$43.223,141,400
2023-08-01$45.24$45.244,349,100
2023-07-31$51.61$51.612,264,700
2023-07-28$50.84$50.841,161,400
2023-07-27$49.30$49.301,184,000
2023-07-26$48.66$48.661,114,700
2023-07-25$49.53$49.531,348,500
2023-07-24$47.88$47.881,835,700
2023-07-21$49.55$49.551,867,000
2023-07-20$49.63$49.631,949,700
2023-07-19$52.17$52.171,477,900
2023-07-18$52.72$52.721,550,700
2023-07-17$51.98$51.981,559,700
2023-07-14$49.87$49.871,960,000
2023-07-13$51.53$51.534,001,200
2023-07-12$47.17$47.171,395,300
2023-07-11$46.37$46.371,418,100
2023-07-10$45.84$45.84977,400
2023-07-07$43.98$43.98644,500
2023-07-06$43.70$43.701,232,500
2023-07-05$44.56$44.561,161,800
2023-07-03$45.23$45.23789,800
2023-06-30$45.14$45.142,218,000
2023-06-29$43.48$43.481,338,000
2023-06-28$42.06$42.06778,800
2023-06-27$42.59$42.591,040,600
2023-06-26$41.00$41.001,064,500
2023-06-23$41.25$41.251,897,600
2023-06-22$42.13$42.131,481,800
2023-06-21$41.18$41.181,999,500
2023-06-20$41.76$41.762,591,200
2023-06-16$40.16$40.161,709,600
2023-06-15$40.27$40.271,115,600
2023-06-14$40.64$40.641,146,500
2023-06-13$40.76$40.761,155,000
2023-06-12$40.00$40.001,045,600
2023-06-09$38.85$38.85830,400
2023-06-08$39.50$39.50807,200
2023-06-07$39.56$39.56790,400
2023-06-06$39.41$39.41727,000
2023-06-05$38.51$38.51935,500
2023-06-02$39.48$39.48935,400
2023-06-01$39.49$39.491,183,900
2023-05-31$39.33$39.332,389,700
2023-05-30$40.26$40.261,665,100
2023-05-26$39.73$39.731,239,100
2023-05-25$37.61$37.611,901,900
2023-05-24$36.55$36.551,695,200
2023-05-23$37.56$37.561,091,700
2023-05-22$39.33$39.33950,500
2023-05-19$38.96$38.961,401,000
2023-05-18$38.83$38.833,361,700
2023-05-17$38.84$38.841,528,000
2023-05-16$38.14$38.141,031,300
2023-05-15$37.93$37.931,733,400
2023-05-12$38.02$38.021,370,300
2023-05-11$38.51$38.514,020,900
2023-05-10$37.83$37.831,896,300
2023-05-09$36.76$36.761,035,500
2023-05-08$37.63$37.631,002,600
2023-05-05$37.46$37.46828,400
2023-05-04$36.57$36.571,779,500
2023-05-03$37.54$37.54889,900
2023-05-02$37.53$37.531,609,000
2023-05-01$36.69$36.691,700,600
2023-04-28$35.77$35.772,753,700
2023-04-27$35.56$35.565,473,400
2023-04-26$38.44$38.442,094,200
2023-04-25$38.79$38.793,569,200
2023-04-24$41.13$41.131,691,400
2023-04-21$41.66$41.661,619,000
2023-04-20$41.87$41.872,755,600
2023-04-19$43.64$43.641,005,300
2023-04-18$44.34$44.341,126,900
2023-04-17$43.36$43.361,921,000
2023-04-14$45.04$45.04813,800
2023-04-13$44.82$44.82882,700
2023-04-12$44.82$44.82847,100
2023-04-11$45.36$45.36797,600
2023-04-10$46.20$46.20936,400
2023-04-06$45.06$45.061,026,600
2023-04-05$45.61$45.611,325,900
2023-04-04$46.24$46.241,210,000
2023-04-03$47.86$47.861,196,600
2023-03-31$47.99$47.99969,700
2023-03-30$47.38$47.38893,000
2023-03-29$46.66$46.66797,600
2023-03-28$45.08$45.081,269,200
2023-03-27$46.12$46.121,157,000
2023-03-24$46.34$46.341,494,400
2023-03-23$47.37$47.372,007,100
2023-03-22$45.76$45.761,116,500
2023-03-21$46.55$46.551,573,400
2023-03-20$46.56$46.561,627,000
2023-03-17$45.10$45.102,755,100
2023-03-16$46.03$46.031,656,600
2023-03-15$44.47$44.471,560,500
2023-03-14$45.16$45.161,690,000
2023-03-13$43.29$43.292,277,300
2023-03-10$44.06$44.061,510,800
2023-03-09$45.22$45.222,051,700
2023-03-08$46.03$46.031,183,000
2023-03-07$45.25$45.251,381,800
2023-03-06$45.35$45.351,645,300
2023-03-03$45.40$45.401,467,700
2023-03-02$44.18$44.181,212,700
2023-03-01$43.77$43.771,044,400
2023-02-28$43.68$43.681,353,800
2023-02-27$42.93$42.931,272,100
2023-02-24$43.23$43.23885,000
2023-02-23$43.79$43.791,664,500
2023-02-22$43.04$43.04974,900
2023-02-21$42.88$42.881,602,200
2023-02-17$44.50$44.501,478,100
2023-02-16$45.03$45.031,465,300
2023-02-15$45.92$45.921,870,000
2023-02-14$44.63$44.631,566,400
2023-02-13$43.68$43.681,555,400
2023-02-10$42.73$42.731,226,900
2023-02-09$42.70$42.701,212,400
2023-02-08$42.54$42.541,016,300
2023-02-07$42.84$42.841,994,400
2023-02-06$41.22$41.221,854,500
2023-02-03$41.56$41.561,908,100
2023-02-02$41.10$41.105,669,000
2023-02-01$39.68$39.683,375,600
2023-01-31$38.17$38.176,316,500
2023-01-30$34.43$34.431,508,100
2023-01-27$35.39$35.391,796,000
2023-01-26$35.43$35.432,405,900
2023-01-25$33.29$33.29673,100
2023-01-24$33.35$33.35616,900
2023-01-23$33.44$33.441,063,200
2023-01-20$32.45$32.451,221,600
2023-01-19$31.43$31.431,526,300
2023-01-18$33.54$33.541,609,200
2023-01-17$33.91$33.911,160,400
2023-01-13$33.74$33.741,046,800
2023-01-12$33.54$33.541,207,500
2023-01-11$32.71$32.71841,600
2023-01-10$31.87$31.87841,500
2023-01-09$31.26$31.26854,400
2023-01-06$30.10$30.10512,600
2023-01-05$28.86$28.86849,000
2023-01-04$29.79$29.79762,500
2023-01-03$29.32$29.32948,100