NASDAQ:ANNX | Historical Stock Price | Annexon, 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
2020-07-24 to 2026-09-04
Data captured

Stock Price Chart

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

$1.36$2.61$5.02$9.64$18.52$35.582020-07-242026-08-27

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

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Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$5.02$5.022,107,900
2025-12-30$5.04$5.041,934,700
2025-12-29$5.00$5.001,355,700
2025-12-26$5.11$5.111,670,300
2025-12-24$5.18$5.18955,900
2025-12-23$5.11$5.112,169,800
2025-12-22$5.19$5.192,402,000
2025-12-19$5.17$5.1710,460,500
2025-12-18$4.82$4.822,705,200
2025-12-17$4.90$4.901,810,400
2025-12-16$4.80$4.802,618,700
2025-12-15$4.91$4.913,344,200
2025-12-12$4.97$4.975,562,700
2025-12-11$5.04$5.043,393,100
2025-12-10$4.90$4.901,666,800
2025-12-09$4.86$4.862,275,000
2025-12-08$4.86$4.862,433,500
2025-12-05$4.61$4.611,944,300
2025-12-04$4.49$4.492,488,900
2025-12-03$4.28$4.281,777,200
2025-12-02$4.06$4.064,167,300
2025-12-01$4.13$4.132,248,200
2025-11-28$4.50$4.501,764,000
2025-11-26$4.32$4.323,045,700
2025-11-25$4.44$4.442,852,700
2025-11-24$4.51$4.513,844,200
2025-11-21$4.27$4.273,979,100
2025-11-20$4.27$4.278,299,900
2025-11-19$4.06$4.0610,650,500
2025-11-18$3.20$3.202,952,000
2025-11-17$3.02$3.023,647,800
2025-11-14$2.71$2.713,507,800
2025-11-13$2.68$2.683,853,200
2025-11-12$2.84$2.841,922,300
2025-11-11$2.97$2.97935,500
2025-11-10$2.98$2.98837,400
2025-11-07$2.88$2.881,639,100
2025-11-06$3.02$3.021,052,400
2025-11-05$3.01$3.011,421,200
2025-11-04$3.08$3.081,884,200
2025-11-03$3.17$3.172,370,800
2025-10-31$3.16$3.163,738,100
2025-10-30$2.93$2.931,726,100
2025-10-29$3.19$3.192,946,600
2025-10-28$3.45$3.451,716,700
2025-10-27$3.54$3.541,970,100
2025-10-24$3.21$3.213,194,600
2025-10-23$3.05$3.051,222,700
2025-10-22$3.00$3.001,690,800
2025-10-21$3.13$3.131,663,700
2025-10-20$3.16$3.162,245,800
2025-10-17$3.15$3.151,554,700
2025-10-16$3.17$3.171,618,200
2025-10-15$3.04$3.041,731,900
2025-10-14$3.00$3.001,573,400
2025-10-13$3.01$3.011,147,800
2025-10-10$3.10$3.102,175,800
2025-10-09$3.26$3.261,593,100
2025-10-08$3.15$3.151,611,200
2025-10-07$3.07$3.07917,700
2025-10-06$3.18$3.181,119,200
2025-10-03$3.19$3.191,518,200
2025-10-02$3.11$3.113,010,400
2025-10-01$3.03$3.031,406,800
2025-09-30$3.05$3.052,945,000
2025-09-29$3.12$3.125,535,800
2025-09-26$3.37$3.375,462,400
2025-09-25$2.79$2.791,346,000
2025-09-24$2.82$2.821,911,000
2025-09-23$2.91$2.911,980,400
2025-09-22$2.98$2.981,802,300
2025-09-19$2.86$2.863,533,100
2025-09-18$2.64$2.641,667,800
2025-09-17$2.52$2.521,144,100
2025-09-16$2.65$2.652,022,600
2025-09-15$2.49$2.491,132,300
2025-09-12$2.42$2.423,901,400
2025-09-11$2.55$2.553,154,600
2025-09-10$2.29$2.293,692,300
2025-09-09$2.12$2.121,451,700
2025-09-08$2.21$2.211,429,000
2025-09-05$2.17$2.171,231,100
2025-09-04$2.15$2.151,835,100
2025-09-03$2.05$2.05856,100
2025-09-02$2.07$2.071,682,500
2025-08-29$2.06$2.061,019,800
2025-08-28$2.12$2.12843,500
2025-08-27$2.11$2.111,696,700
2025-08-26$2.15$2.151,046,800
2025-08-25$2.15$2.15964,200
2025-08-22$2.31$2.311,956,900
2025-08-21$2.17$2.171,061,900
2025-08-20$2.14$2.14739,100
2025-08-19$2.19$2.191,993,800
2025-08-18$2.35$2.351,894,000
2025-08-15$2.44$2.442,662,500
2025-08-14$2.38$2.381,323,200
2025-08-13$2.60$2.601,910,800
2025-08-12$2.44$2.44417,700
2025-08-11$2.35$2.35466,200
2025-08-08$2.36$2.361,103,300
2025-08-07$2.37$2.37884,600
2025-08-06$2.35$2.35569,400
2025-08-05$2.48$2.48631,600
2025-08-04$2.53$2.531,032,900
2025-08-01$2.45$2.45872,000
2025-07-31$2.40$2.40685,800
2025-07-30$2.59$2.591,572,000
2025-07-29$2.38$2.38631,600
2025-07-28$2.49$2.49668,600
2025-07-25$2.51$2.51765,000
2025-07-24$2.55$2.55957,400
2025-07-23$2.48$2.481,865,700
2025-07-22$2.37$2.373,100,100
2025-07-21$2.47$2.471,474,900
2025-07-18$2.32$2.321,382,800
2025-07-17$2.34$2.341,756,000
2025-07-16$2.40$2.402,090,100
2025-07-15$2.50$2.50677,500
2025-07-14$2.61$2.611,366,600
2025-07-11$2.58$2.581,602,600
2025-07-10$2.80$2.807,998,400
2025-07-09$2.77$2.773,101,100
2025-07-08$2.71$2.711,261,200
2025-07-07$2.73$2.731,273,100
2025-07-03$2.89$2.891,884,100
2025-07-02$2.81$2.813,089,400
2025-07-01$2.47$2.471,008,400
2025-06-30$2.40$2.401,056,000
2025-06-27$2.41$2.411,142,300
2025-06-26$2.45$2.452,013,800
2025-06-25$2.39$2.391,251,500
2025-06-24$2.45$2.45925,100
2025-06-23$2.38$2.381,283,500
2025-06-20$2.38$2.381,626,400
2025-06-18$2.34$2.342,069,100
2025-06-17$2.34$2.34807,000
2025-06-16$2.44$2.44670,100
2025-06-13$2.49$2.491,053,800
2025-06-12$2.71$2.711,854,600
2025-06-11$2.52$2.52724,500
2025-06-10$2.64$2.64763,800
2025-06-09$2.59$2.59925,700
2025-06-06$2.60$2.602,280,800
2025-06-05$2.55$2.553,241,700
2025-06-04$2.43$2.431,199,900
2025-06-03$2.30$2.301,139,400
2025-06-02$2.12$2.121,386,900
2025-05-30$2.04$2.043,900,700
2025-05-29$2.18$2.18826,500
2025-05-28$2.03$2.03884,800
2025-05-27$1.97$1.97943,400
2025-05-23$2.11$2.11952,000
2025-05-22$2.06$2.06841,400
2025-05-21$1.97$1.971,412,400
2025-05-20$2.10$2.101,454,100
2025-05-19$2.09$2.091,655,600
2025-05-16$2.01$2.011,767,100
2025-05-15$1.81$1.811,309,400
2025-05-14$1.76$1.761,393,600
2025-05-13$1.75$1.751,368,300
2025-05-12$1.77$1.772,072,400
2025-05-09$1.60$1.601,212,500
2025-05-08$1.70$1.70966,000
2025-05-07$1.69$1.69976,800
2025-05-06$1.65$1.651,190,400
2025-05-05$1.81$1.81724,100
2025-05-02$1.97$1.971,592,000
2025-05-01$1.86$1.861,109,500
2025-04-30$1.86$1.861,595,600
2025-04-29$1.90$1.901,020,300
2025-04-28$1.89$1.89816,700
2025-04-25$1.88$1.88878,000
2025-04-24$1.91$1.911,581,600
2025-04-23$1.84$1.843,178,100
2025-04-22$1.76$1.764,235,200
2025-04-21$1.68$1.683,604,900
2025-04-17$1.46$1.46870,800
2025-04-16$1.43$1.431,154,900
2025-04-15$1.54$1.541,975,800
2025-04-14$1.53$1.531,319,200
2025-04-11$1.49$1.491,564,300
2025-04-10$1.38$1.381,559,500
2025-04-09$1.42$1.425,209,700
2025-04-08$1.54$1.541,580,800
2025-04-07$1.63$1.633,048,600
2025-04-04$1.69$1.691,851,500
2025-04-03$1.83$1.831,663,000
2025-04-02$1.96$1.963,193,300
2025-04-01$1.81$1.812,473,700
2025-03-31$1.93$1.934,075,500
2025-03-28$2.25$2.251,100,800
2025-03-27$2.24$2.242,779,900
2025-03-26$2.29$2.291,325,700
2025-03-25$2.47$2.471,183,700
2025-03-24$2.70$2.701,425,300
2025-03-21$2.40$2.405,392,300
2025-03-20$2.49$2.49863,400
2025-03-19$2.50$2.501,331,000
2025-03-18$2.50$2.503,160,600
2025-03-17$2.75$2.754,257,400
2025-03-14$2.60$2.60820,700
2025-03-13$2.53$2.53900,000
2025-03-12$2.66$2.66932,900
2025-03-11$2.67$2.671,029,800
2025-03-10$2.61$2.61772,900
2025-03-07$2.76$2.76719,400
2025-03-06$2.68$2.68792,700
2025-03-05$2.76$2.761,234,000
2025-03-04$2.47$2.471,507,300
2025-03-03$2.39$2.391,517,300
2025-02-28$2.64$2.641,129,000
2025-02-27$2.50$2.501,210,300
2025-02-26$2.60$2.60945,300
2025-02-25$2.58$2.581,117,900
2025-02-24$2.65$2.65740,000
2025-02-21$2.81$2.81578,100
2025-02-20$2.83$2.83796,400
2025-02-19$2.85$2.851,332,100
2025-02-18$2.70$2.701,479,700
2025-02-14$3.07$3.07851,400
2025-02-13$3.01$3.011,358,400
2025-02-12$3.00$3.001,385,200
2025-02-11$3.11$3.111,345,000
2025-02-10$3.40$3.40932,100
2025-02-07$3.44$3.441,200,400
2025-02-06$3.57$3.571,108,500
2025-02-05$3.70$3.70987,000
2025-02-04$3.69$3.691,064,100
2025-02-03$3.52$3.521,145,900
2025-01-31$3.84$3.841,400,600
2025-01-30$4.04$4.042,525,000
2025-01-29$4.12$4.121,010,800
2025-01-28$4.10$4.101,765,900
2025-01-27$3.87$3.871,817,300
2025-01-24$4.13$4.131,297,000
2025-01-23$4.24$4.241,564,100
2025-01-22$4.15$4.151,241,500
2025-01-21$4.17$4.171,239,300
2025-01-17$4.20$4.201,668,100
2025-01-16$4.11$4.114,085,700
2025-01-15$4.24$4.241,682,700
2025-01-14$4.53$4.532,333,600
2025-01-13$4.94$4.941,259,200
2025-01-10$4.83$4.831,717,700
2025-01-08$4.84$4.84678,100
2025-01-07$5.05$5.05807,300
2025-01-06$5.05$5.05736,900
2025-01-03$5.41$5.411,164,200
2025-01-02$5.50$5.50977,000