Northern Trust
TNDM icon

Northern Trust’s Tandem Diabetes Care TNDM Stock Holding History

Northern Trust’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 		$13.5M Buy
706,609
+14,916
+2% +$324K ﹤0.01% 1909
2025
Q4 		$15.2M Buy
691,693
+810
+0.1% +$14.6K ﹤0.01% 1849
2025
Q3 		$8.39M Sell
690,883
-9,498
-1% -$129K ﹤0.01% 2213
2025
Q2 		$13.1M Buy
700,381
+10,847
+2% +$215K ﹤0.01% 1912
2025
Q1 		$13.2M Sell
689,534
-7,922
-1% -$232K ﹤0.01% 1878
2024
Q4 		$25.1M Buy
697,456
+61,768
+10% +$2.09M ﹤0.01% 1552
2024
Q3 		$27M Buy
635,688
+271,144
+74% +$11.5M ﹤0.01% 1440
2024
Q2 		$14.7M Buy
364,544
+22,019
+6% +$919K ﹤0.01% 1757
2024
Q1 		$12.1M Sell
342,525
-8,299
-2% -$222K ﹤0.01% 1920
2023
Q4 		$10.4M Sell
350,824
-26,065
-7% -$541K ﹤0.01% 2044
2023
Q3 		$7.83M Buy
376,889
+8,012
+2% +$220K ﹤0.01% 2160
2023
Q2 		$9.05M Buy
368,877
+4,739
+1% +$152K ﹤0.01% 2133
2023
Q1 		$14.8M Sell
364,138
-232,280
-39% -$9.62M ﹤0.01% 1755
2022
Q4 		$26.8M Sell
596,418
-7,619
-1% -$345K 0.01% 1352
2022
Q3 		$28.9M Buy
604,037
+133,290
+28% +$7.31M 0.01% 1212
2022
Q2 		$27.9M Sell
470,747
-13,020
-3% -$1.07M 0.01% 1310
2022
Q1 		$56.3M Sell
483,767
-9,176
-2% -$1.07M 0.01% 941
2021
Q4 		$74.2M Buy
492,943
+3,388
+0.7% +$457K 0.01% 829
2021
Q3 		$58.4M Buy
489,555
+196,716
+67% +$21.7M 0.01% 965
2021
Q2 		$28.5M Sell
292,839
-8,481
-3% -$756K 0.01% 1634
2021
Q1 		$26.6M Buy
301,320
+6,478
+2% +$602K ﹤0.01% 1623
2020
Q4 		$28.2M Buy
294,842
+249
+0.1% +$25.7K 0.01% 1554
2020
Q3 		$33.4M Sell
294,593
-846
-0.3% -$88.9K 0.01% 1214
2020
Q2 		$29.2M Sell
295,439
-421,102
-59% -$33.6M 0.01% 1317
2020
Q1 		$46.1M Buy
716,541
+10,810
+2% +$757K 0.01% 823
2019
Q4 		$42.1M Sell
705,731
-20,864
-3% -$1.29M 0.01% 1143
2019
Q3 		$42.9M Buy
726,595
+54,639
+8% +$3.49M 0.01% 1093
2019
Q2 		$43.4M Buy
671,956
+8,075
+1% +$521K 0.01% 1104
2019
Q1 		$42.2M Buy
663,881
+1,961
+0.3% +$103K 0.01% 1098
2018
Q4 		$25.1M Buy
661,920
+20,714
+3% +$731K 0.01% 1391
2018
Q3 		$27.5M Buy
641,206
+108,145
+20% +$3.78M 0.01% 1518
2018
Q2 		$11.7M Buy
533,061
+449,314
+537% +$5.53M ﹤0.01% 2160
2018
Q1 		$415K Buy
+83,747
New +$270K ﹤0.01% 3619
2017
Q4 		– Sell
-5,068
Closed -$37K – 4268
2017
Q3 		$37K Buy
5,068
+1,735
+52% +$11K ﹤0.01% 4099
2017
Q2 		$26K Sell
3,333
-16,100
-83% -$149K ﹤0.01% 4159
2017
Q1 		$234K Sell
19,433
-1,550
-7% -$33.9K ﹤0.01% 3746
2016
Q4 		$451K Sell
20,983
-89
-0.4% -$3.42K ﹤0.01% 3551
2016
Q3 		$1.61M Sell
21,072
-1,129
-5% -$82.4K ﹤0.01% 3158
2016
Q2 		$1.67M Buy
22,201
+1,227
+6% +$98.8K ﹤0.01% 3135
2016
Q1 		$1.83M Buy
20,974
+293
+1% +$25.6K ﹤0.01% 3041
2015
Q4 		$2.44M Buy
20,681
+2,020
+11% +$200K ﹤0.01% 2941
2015
Q3 		$1.64M Buy
18,661
+2,280
+14% +$265K ﹤0.01% 3145
2015
Q2 		$1.78M Buy
16,381
+5,838
+55% +$726K ﹤0.01% 3122
2015
Q1 		$1.33M Buy
10,543
+990
+10% +$129K ﹤0.01% 3309
2014
Q4 		$1.21M Sell
9,553
-30
-0.3% -$4.16K ﹤0.01% 3331
2014
Q3 		$1.29M Buy
9,583
+3
+0% +$420 ﹤0.01% 3330
2014
Q2 		$1.56M Sell
9,580
-1,487
-13% -$253K ﹤0.01% 3218
2014
Q1 		$2.44M Sell
11,067
-1,122
-9% -$286K ﹤0.01% 3013
2013
Q4 		$3.14M Buy
+12,189
New +$2.79M ﹤0.01% 2880

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
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 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

Northern Trust's TNDM Position: Q1 2026 in Review

Northern Trust increased its Tandem Diabetes Care (TNDM) stake by 2.2% in Q1 2026, buying an estimated $324K and bringing the position to 706,609 shares worth $13.5M. The position accounts for ﹤0.01% of the portfolio, ranked #1909.

Northern Trust first reported a position in TNDM in Q4 2013 and has held it in 49 quarters since. The position peaked at $74.2M in Q4 2021. 272 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

  • Northern Trust held 706,609 shares of Tandem Diabetes Care worth $13.5M as of Q1 2026.
  • Northern Trust bought 14,916 Tandem Diabetes Care shares in Q1 2026, an estimated $324K.
  • Tandem Diabetes Care made up ﹤0.01% of Northern Trust's portfolio in Q1 2026, its #1909 holding.
  • Northern Trust first reported a position in Tandem Diabetes Care in Q4 2013 and has held it in 49 quarters since.
  • Northern Trust's Tandem Diabetes Care position peaked at $74.2M in Q4 2021.
  • 272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on Northern Trust's 13F filing for Q1 2026, filed 14 May 2026.