State Street
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State Street’s Tandem Diabetes Care TNDM Stock Holding History

State Street’s Portfolio TNDM Stock Details TNDM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$51M Buy
2,662,260
+20,536
+0.8% +$446K ﹤0.01% 1731
2025
Q4 		$58.1M Sell
2,641,724
-26,464
-1% -$478K ﹤0.01% 1657
2025
Q3 		$32.4M Buy
2,668,188
+22,299
+0.8% +$302K ﹤0.01% 1971
2025
Q2 		$49.3M Sell
2,645,889
-41,850
-2% -$829K ﹤0.01% 1688
2025
Q1 		$51.5M Sell
2,687,739
-77,398
-3% -$2.26M ﹤0.01% 1614
2024
Q4 		$99.6M Buy
2,765,137
+109,401
+4% +$3.7M ﹤0.01% 1332
2024
Q3 		$113M Buy
2,655,736
+83,172
+3% +$3.53M ﹤0.01% 1264
2024
Q2 		$104M Buy
2,572,564
+331,586
+15% +$13.8M ﹤0.01% 1232
2024
Q1 		$79.4M Sell
2,240,978
-33,588
-1% -$900K ﹤0.01% 1456
2023
Q4 		$67.3M Buy
2,274,566
+104,722
+5% +$2.17M ﹤0.01% 1537
2023
Q3 		$45.1M Sell
2,169,844
-87,584
-4% -$2.41M ﹤0.01% 1692
2023
Q2 		$55.4M Buy
2,257,428
+190,499
+9% +$6.13M ﹤0.01% 1609
2023
Q1 		$83.9M Buy
2,066,929
+239,659
+13% +$9.92M ﹤0.01% 1302
2022
Q4 		$82.1M Buy
1,827,270
+44,270
+2% +$2M ﹤0.01% 1304
2022
Q3 		$85.3M Buy
1,783,000
+59,836
+3% +$3.28M 0.01% 1220
2022
Q2 		$102M Buy
1,723,164
+15,134
+0.9% +$1.24M 0.01% 1134
2022
Q1 		$199M Buy
1,708,030
+59,778
+4% +$6.98M 0.01% 837
2021
Q4 		$248M Buy
1,648,252
+35,825
+2% +$4.84M 0.01% 761
2021
Q3 		$192M Buy
1,612,427
+422,287
+35% +$46.5M 0.01% 865
2021
Q2 		$116M Buy
1,190,140
+346,024
+41% +$30.9M 0.01% 1184
2021
Q1 		$74.5M Buy
844,116
+8,009
+1% +$744K ﹤0.01% 1454
2020
Q4 		$80M Buy
836,107
+48,161
+6% +$4.96M ﹤0.01% 1320
2020
Q3 		$89.4M Sell
787,946
-22,128
-3% -$2.32M 0.01% 1040
2020
Q2 		$80.1M Sell
810,074
-501,578
-38% -$40M 0.01% 1123
2020
Q1 		$84.4M Sell
1,311,652
-22,107
-2% -$1.55M 0.01% 941
2019
Q4 		$79.5M Buy
1,333,759
+18,267
+1% +$1.13M 0.01% 1199
2019
Q3 		$77.6M Sell
1,315,492
-12,464
-0.9% -$796K 0.01% 1158
2019
Q2 		$85.7M Buy
1,327,956
+91,085
+7% +$5.88M 0.01% 1153
2019
Q1 		$78.5M Sell
1,236,871
-38,308
-3% -$2.01M 0.01% 1176
2018
Q4 		$48.4M Buy
1,275,179
+125,142
+11% +$4.42M ﹤0.01% 1371
2018
Q3 		$49.3M Sell
1,150,037
-63,876
-5% -$2.23M ﹤0.01% 1544
2018
Q2 		$26.7M Buy
1,213,913
+1,179,964
+3,476% +$14.5M ﹤0.01% 1930
2018
Q1 		$168K Buy
+33,949
New +$109K ﹤0.01% 3572
2017
Q2 		– Sell
-26,409
Closed -$314K – 3735
2017
Q1 		$314K Buy
26,409
+3,194
+14% +$69.8K ﹤0.01% 3452
2016
Q4 		$499K Buy
23,215
+565
+2% +$21.7K ﹤0.01% 3388
2016
Q3 		$1.74M Buy
22,650
+372
+2% +$27.1K ﹤0.01% 3025
2016
Q2 		$1.68M Buy
22,278
+2,861
+15% +$230K ﹤0.01% 3096
2016
Q1 		$1.69M Buy
19,417
+1,414
+8% +$124K ﹤0.01% 3059
2015
Q4 		$2.13M Buy
18,003
+892
+5% +$88.5K ﹤0.01% 2972
2015
Q3 		$1.51M Buy
17,111
+1,150
+7% +$134K ﹤0.01% 3102
2015
Q2 		$1.73M Buy
15,961
+2,283
+17% +$284K ﹤0.01% 3110
2015
Q1 		$1.73M Buy
13,678
+21
+0.2% +$2.73K ﹤0.01% 3074
2014
Q4 		$1.73M Sell
13,657
-798
-6% -$111K ﹤0.01% 3095
2014
Q3 		$1.94M Buy
14,455
+856
+6% +$120K ﹤0.01% 3032
2014
Q2 		$2.21M Sell
13,599
-99
-0.7% -$16.8K ﹤0.01% 3022
2014
Q1 		$3.02M Sell
13,698
-64
-0.5% -$16.3K ﹤0.01% 2848
2013
Q4 		$3.55M Buy
+13,762
New +$3.15M ﹤0.01% 2771

Other funds holding TNDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
SC
Sessa Capital New York $5.51B AUM 47.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
ACH
ArrowMark Colorado Holdings Denver, Colorado $3.76B AUM 21.77% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
GKIM
GW&K Investment Management Boston, Massachusetts $11.3B AUM 31.98% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

State Street's TNDM Position: Q1 2026 in Review

State Street increased its Tandem Diabetes Care (TNDM) stake by 0.78% in Q1 2026, buying an estimated $446K and bringing the position to 2,662,260 shares worth $51M. The position accounts for ﹤0.01% of the portfolio, ranked #1731.

State Street first reported a position in TNDM in Q4 2013 and has held it in 47 quarters since. The position peaked at $248M in Q4 2021. 272 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

  • State Street held 2,662,260 shares of Tandem Diabetes Care worth $51M as of Q1 2026.
  • State Street bought 20,536 Tandem Diabetes Care shares in Q1 2026, an estimated $446K.
  • Tandem Diabetes Care made up ﹤0.01% of State Street's portfolio in Q1 2026, its #1731 holding.
  • State Street first reported a position in Tandem Diabetes Care in Q4 2013 and has held it in 47 quarters since.
  • State Street's Tandem Diabetes Care position peaked at $248M in Q4 2021.
  • 272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on State Street's 13F filing for Q1 2026, filed 15 May 2026.