NASDAQ:TNDM | Historical Stock Price | TANDEM DIABETES CARE 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
2013-11-14 to 2026-09-04
Data captured

Stock Price Chart

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

$2.20$5.88$15.69$41.86$111.69$297.992013-11-142026-08-27

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

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Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$37.97$37.971,005,900
2018-12-28$37.31$37.311,250,100
2018-12-27$35.83$35.831,295,900
2018-12-26$36.47$36.471,289,100
2018-12-24$32.11$32.11844,700
2018-12-21$31.52$31.521,785,400
2018-12-20$31.61$31.611,939,400
2018-12-19$32.78$32.781,548,700
2018-12-18$34.06$34.061,206,300
2018-12-17$33.47$33.471,438,200
2018-12-14$35.35$35.35902,800
2018-12-13$36.07$36.071,089,100
2018-12-12$37.14$37.141,276,900
2018-12-11$36.45$36.451,726,500
2018-12-10$35.18$35.181,506,100
2018-12-07$33.49$33.491,209,800
2018-12-06$35.12$35.121,361,600
2018-12-04$35.25$35.251,681,500
2018-12-03$38.28$38.281,594,100
2018-11-30$36.82$36.821,991,800
2018-11-29$36.79$36.791,327,300
2018-11-28$35.60$35.601,333,900
2018-11-27$33.29$33.29780,900
2018-11-26$33.83$33.831,076,100
2018-11-23$32.10$32.10828,700
2018-11-21$32.63$32.632,884,400
2018-11-20$28.45$28.452,075,000
2018-11-19$30.04$30.041,964,200
2018-11-16$33.49$33.491,058,300
2018-11-15$33.12$33.121,464,300
2018-11-14$31.35$31.351,614,700
2018-11-13$32.00$32.001,704,600
2018-11-12$32.71$32.711,862,600
2018-11-09$37.19$37.191,062,800
2018-11-08$39.09$39.091,326,800
2018-11-07$39.56$39.561,936,000
2018-11-06$36.80$36.801,134,800
2018-11-05$37.88$37.881,864,000
2018-11-02$39.99$39.994,091,700
2018-11-01$40.65$40.653,496,200
2018-10-31$37.61$37.612,211,400
2018-10-30$34.69$34.691,251,000
2018-10-29$33.52$33.521,466,700
2018-10-26$33.36$33.361,478,500
2018-10-25$34.85$34.851,517,800
2018-10-24$34.02$34.021,400,300
2018-10-23$36.49$36.491,393,900
2018-10-22$36.51$36.511,524,900
2018-10-19$36.12$36.121,940,200
2018-10-18$38.59$38.591,473,100
2018-10-17$40.19$40.191,749,800
2018-10-16$38.77$38.772,069,200
2018-10-15$36.27$36.273,170,100
2018-10-12$36.13$36.132,313,600
2018-10-11$34.34$34.342,714,800
2018-10-10$32.78$32.783,454,700
2018-10-09$34.97$34.971,542,100
2018-10-08$34.72$34.723,081,700
2018-10-05$36.85$36.852,912,200
2018-10-04$35.03$35.031,966,200
2018-10-03$35.83$35.833,125,400
2018-10-02$35.64$35.645,090,400
2018-10-01$38.57$38.575,118,100
2018-09-28$42.84$42.842,750,200
2018-09-27$42.79$42.795,568,300
2018-09-26$46.27$46.274,119,600
2018-09-25$47.84$47.846,809,200
2018-09-24$44.53$44.533,094,600
2018-09-21$43.62$43.625,823,500
2018-09-20$43.18$43.185,241,800
2018-09-19$39.95$39.954,359,400
2018-09-18$42.36$42.3611,597,100
2018-09-17$40.18$40.1810,178,000
2018-09-14$47.63$47.635,191,900
2018-09-13$51.17$51.174,085,600
2018-09-12$48.62$48.623,245,700
2018-09-11$46.59$46.592,188,700
2018-09-10$46.00$46.002,542,700
2018-09-07$45.18$45.182,871,800
2018-09-06$44.22$44.222,751,300
2018-09-05$44.64$44.645,323,700
2018-09-04$46.57$46.573,170,100
2018-08-31$45.69$45.694,029,000
2018-08-30$44.05$44.053,121,400
2018-08-29$40.93$40.932,518,200
2018-08-28$40.59$40.592,854,000
2018-08-27$41.40$41.404,089,100
2018-08-24$38.37$38.374,580,000
2018-08-23$38.61$38.613,364,500
2018-08-22$38.04$38.043,813,000
2018-08-21$35.93$35.932,586,700
2018-08-20$35.96$35.962,833,300
2018-08-17$33.88$33.883,730,200
2018-08-16$33.91$33.912,437,200
2018-08-15$33.03$33.031,998,000
2018-08-14$33.51$33.512,985,200
2018-08-13$31.69$31.691,780,000
2018-08-10$30.90$30.901,650,300
2018-08-09$31.44$31.442,139,300
2018-08-08$30.30$30.302,415,800
2018-08-07$30.75$30.753,600,100
2018-08-06$32.33$32.334,123,700
2018-08-03$33.03$33.037,442,100
2018-08-02$31.39$31.394,324,900
2018-08-01$28.57$28.572,632,100
2018-07-31$27.56$27.563,884,400
2018-07-30$24.84$24.842,014,200
2018-07-27$25.60$25.603,158,000
2018-07-26$26.96$26.961,542,000
2018-07-25$27.46$27.461,549,200
2018-07-24$26.51$26.513,384,300
2018-07-23$28.13$28.131,685,000
2018-07-20$26.89$26.891,526,800
2018-07-19$26.61$26.611,176,500
2018-07-18$26.14$26.142,000,700
2018-07-17$27.00$27.003,127,600
2018-07-16$26.93$26.933,373,300
2018-07-13$25.89$25.892,111,400
2018-07-12$25.45$25.453,178,700
2018-07-11$24.32$24.322,417,900
2018-07-10$22.88$22.88705,300
2018-07-09$22.91$22.911,546,100
2018-07-06$23.05$23.051,813,600
2018-07-05$23.14$23.141,534,900
2018-07-03$21.99$21.991,323,700
2018-07-02$21.40$21.402,487,800
2018-06-29$22.02$22.021,581,300
2018-06-28$22.39$22.393,186,500
2018-06-27$22.61$22.613,547,800
2018-06-26$23.64$23.644,189,600
2018-06-25$23.54$23.545,492,200
2018-06-22$23.15$23.1517,879,100
2018-06-21$20.31$20.312,760,800
2018-06-20$20.68$20.682,620,500
2018-06-19$19.62$19.621,851,800
2018-06-18$19.64$19.644,503,400
2018-06-15$19.91$19.913,229,000
2018-06-14$18.86$18.861,699,600
2018-06-13$17.76$17.764,335,000
2018-06-12$17.70$17.702,171,500
2018-06-11$16.33$16.331,600,300
2018-06-08$15.64$15.641,271,500
2018-06-07$15.64$15.641,570,800
2018-06-06$15.98$15.981,751,300
2018-06-05$15.39$15.392,675,100
2018-06-04$15.21$15.213,017,700
2018-06-01$14.43$14.431,809,800
2018-05-31$14.03$14.032,810,200
2018-05-30$14.25$14.251,664,700
2018-05-29$13.03$13.033,929,600
2018-05-25$14.20$14.201,727,300
2018-05-24$13.83$13.831,853,600
2018-05-23$13.75$13.752,255,600
2018-05-22$13.01$13.011,572,600
2018-05-21$12.29$12.292,547,900
2018-05-18$12.83$12.832,911,500
2018-05-17$11.69$11.69901,900
2018-05-16$11.69$11.691,942,000
2018-05-15$11.89$11.893,498,400
2018-05-14$11.15$11.157,438,200
2018-05-11$8.90$8.902,541,700
2018-05-10$8.90$8.901,698,600
2018-05-09$8.90$8.901,560,300
2018-05-08$8.80$8.801,480,300
2018-05-07$8.53$8.531,939,400
2018-05-04$8.10$8.101,216,900
2018-05-03$8.00$8.00993,000
2018-05-02$7.84$7.842,409,600
2018-05-01$7.79$7.79947,000
2018-04-30$7.63$7.631,186,400
2018-04-27$7.80$7.802,495,700
2018-04-26$7.99$7.992,746,200
2018-04-25$7.23$7.231,254,200
2018-04-24$7.09$7.091,304,700
2018-04-23$7.37$7.37822,300
2018-04-20$7.44$7.44894,200
2018-04-19$7.35$7.351,667,000
2018-04-18$7.56$7.561,400,800
2018-04-17$7.65$7.651,934,500
2018-04-16$7.55$7.551,814,500
2018-04-13$7.11$7.111,718,200
2018-04-12$6.91$6.912,450,700
2018-04-11$7.01$7.016,403,000
2018-04-10$7.01$7.016,683,700
2018-04-09$5.72$5.721,953,000
2018-04-06$5.75$5.752,361,700
2018-04-05$5.52$5.521,755,900
2018-04-04$5.41$5.412,138,600
2018-04-03$5.16$5.161,677,700
2018-04-02$4.90$4.901,537,000
2018-03-29$4.96$4.962,914,200
2018-03-28$4.76$4.764,193,200
2018-03-27$4.51$4.513,571,400
2018-03-26$4.13$4.131,108,200
2018-03-23$3.99$3.992,738,800
2018-03-22$3.79$3.79480,100
2018-03-21$3.70$3.70660,600
2018-03-20$3.79$3.79561,600
2018-03-19$3.84$3.84782,200
2018-03-16$4.04$4.041,759,000
2018-03-15$3.86$3.86480,300
2018-03-14$3.88$3.88686,900
2018-03-13$3.72$3.72604,900
2018-03-12$3.86$3.861,091,000
2018-03-09$3.94$3.94802,600
2018-03-08$4.05$4.051,503,900
2018-03-07$3.97$3.971,118,900
2018-03-06$3.95$3.951,637,000
2018-03-05$3.88$3.884,179,900
2018-03-02$3.89$3.895,006,800
2018-03-01$3.39$3.391,226,800
2018-02-28$3.16$3.161,198,600
2018-02-27$3.24$3.241,940,100
2018-02-26$3.10$3.102,031,200
2018-02-23$2.86$2.862,665,500
2018-02-22$3.10$3.102,314,700
2018-02-21$2.99$2.993,088,800
2018-02-20$2.72$2.721,617,500
2018-02-16$2.43$2.43739,500
2018-02-15$2.41$2.411,016,000
2018-02-14$2.50$2.501,893,700
2018-02-13$2.43$2.43889,000
2018-02-12$2.41$2.411,649,300
2018-02-09$2.35$2.356,296,500
2018-02-08$2.92$2.92387,400
2018-02-07$2.62$2.62149,400
2018-02-06$2.69$2.69351,500
2018-02-05$2.60$2.60120,400
2018-02-02$2.67$2.67100,000
2018-02-01$2.72$2.72132,000
2018-01-31$2.78$2.78213,000
2018-01-30$2.74$2.74221,100
2018-01-29$2.88$2.88215,100
2018-01-26$2.96$2.96123,100
2018-01-25$2.88$2.88168,600
2018-01-24$3.03$3.03198,600
2018-01-23$3.07$3.07563,100
2018-01-22$2.97$2.97831,600
2018-01-19$2.91$2.91826,700
2018-01-18$2.88$2.88937,500
2018-01-17$2.92$2.92896,300
2018-01-16$2.81$2.811,100,200
2018-01-12$3.24$3.24846,000
2018-01-11$3.35$3.35917,500
2018-01-10$3.43$3.435,239,900
2018-01-09$2.86$2.862,334,600
2018-01-08$3.11$3.111,354,800
2018-01-05$2.52$2.52149,900
2018-01-04$2.50$2.50227,100
2018-01-03$2.48$2.48147,400
2018-01-02$2.54$2.54159,900