TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (TNDM)

Historical Holders from Q1 2016 to Q3 2025

Symbol
TNDM on Nasdaq
CUSIP
875372203
Type / Class
Equity / Common Stock, par value $0.001 per share
Shares outstanding
66.6M
All holders as of June 30, 2025
Q2 2025
Total 13F shares, excl. options
81M
Holdings value
$1.51B
% of all portfolios
0.003%
Grand Portfolio weight change
+0%
Number of holders
269
Number of buys
155
Number of sells
-109
Average Value change %
+0%
Average buys %
+0.001%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (TNDM)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 15.2% $189M 10.1M BlackRock, Inc. Mar 31, 2025
Sessa Capital (Master), L.P. 6.71% $83.7M 4.47M Sessa Capital (Master), L.P. Mar 31, 2025

Institutional Holders of TANDEM DIABETES CARE INC - Common Stock, par value $0.001 per share (TNDM)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 190K $2.31M -$132 $12.14 7
2025 Q2 81M $1.51B +$147M $18.64 269
2025 Q1 73M $1.4B -$74.3M $19.16 271
2024 Q4 72.1M $2.6B -$54M $36.02 310
2024 Q3 73M $3.1B -$23.2M $42.41 328
2024 Q2 73.6M $2.96B -$12.2M $40.29 316
2024 Q1 74.1M $2.62B +$131M $35.41 291
2023 Q4 82.1K $2.43M -$4.69M $29.58 4
2023 Q3 68.6M $1.42B +$36.7M $20.77 219
2023 Q2 66M $1.62B -$79.8M $24.54 238
2023 Q1 68.1M $2.76B +$144M $40.61 269
2022 Q4 64M $2.88B +$82M $44.95 285
2022 Q3 61.9M $2.96B +$41.6M $47.85 275
2022 Q2 61.4M $3.63B -$77M $59.19 316
2022 Q1 59.5M $6.92B -$142M $116.29 362
2021 Q4 60.4M $9.09B +$31.9M $150.52 374
2021 Q3 61.2M $7.3B +$275M $119.38 329
2021 Q2 59M $5.75B +$205M $97.40 296
2021 Q1 57.6M $5.08B -$45.6M $88.25 284
2020 Q4 58.4M $5.59B +$258M $95.68 292
2020 Q3 54.6M $6.2B -$68.4M $113.50 316
2020 Q2 55.3M $5.47B +$14.4M $98.92 298
2020 Q1 55.8M $3.59B +$179M $64.35 268
2019 Q4 54.3M $3.23B +$217M $59.61 271
2019 Q3 49.4M $2.92B +$146M $58.98 259
2019 Q2 46.9M $3.03B +$63.9M $64.52 254
2019 Q1 46.8M $2.97B -$41.9M $63.50 257
2018 Q4 47.3M $1.8B +$233M $37.97 193
2018 Q3 40.6M $1.74B +$355M $42.84 178
2018 Q2 33.4M $735M +$323M $22.02 113
2018 Q1 19M $94.4M +$86.6M $4.96 70
2017 Q4 1.55M $3.66M -$15.6M $2.36 27
2017 Q3 8.18M $5.97M +$5.97M $0.73 4
2016 Q1 150 $10K $0 $66.67 1