HighTower Advisors
TNDM icon

HighTower Advisors’s Tandem Diabetes Care TNDM Stock Holding History

HighTower Advisors’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
2025
Q3 		– Sell
-121,460
Closed -$2.26M – 4059
2025
Q2 		$2.26M Buy
121,460
+54,292
+81% +$1.08M ﹤0.01% 1502
2025
Q1 		$1.29M Buy
67,168
+57,635
+605% +$1.69M ﹤0.01% 1795
2024
Q4 		$343K Buy
+9,533
New +$322K ﹤0.01% 2778
2022
Q4 		– Sell
-4,209
Closed -$202K – 3518
2022
Q3 		$202K Sell
4,209
-99
-2% -$5.43K ﹤0.01% 2601
2022
Q2 		$255K Sell
4,308
-3,479
-45% -$286K ﹤0.01% 2465
2022
Q1 		$900K Sell
7,787
-408
-5% -$47.6K ﹤0.01% 1820
2021
Q4 		$1.24M Buy
8,195
+1,570
+24% +$212K ﹤0.01% 1650
2021
Q3 		$783K Buy
6,625
+1,969
+42% +$217K ﹤0.01% 1793
2021
Q2 		$453K Buy
4,656
+88
+2% +$7.85K ﹤0.01% 2109
2021
Q1 		$403K Buy
4,568
+594
+15% +$55.2K ﹤0.01% 2118
2020
Q4 		$384K Buy
3,974
+1,048
+36% +$108K ﹤0.01% 1774
2020
Q3 		$333K Buy
2,926
+110
+4% +$11.6K ﹤0.01% 1772
2020
Q2 		$280K Sell
2,816
-215
-7% -$17.2K ﹤0.01% 1787
2020
Q1 		$193K Buy
+3,031
New +$212K ﹤0.01% 1801
2019
Q2 		– Sell
-5,693
Closed -$350K – 2511
2019
Q1 		$350K Buy
+5,693
New +$299K ﹤0.01% 1650
2015
Q2 		– Sell
-10,063
Closed -$4.1M – 1721
2015
Q1 		$4.1M Buy
+10,063
New +$1.31M 0.06% 351

Other funds holding TNDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SC
Sessa Capital New York $5.51B AUM 47.23% 1-Year Est. Return
ACH
ArrowMark Colorado Holdings Denver, Colorado $3.76B AUM 21.77% 1-Year Est. Return
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
HRCM
Hood River Capital Management Palm Beach Gardens, Florida $9.98B AUM 145.42% 1-Year Est. Return
PIM
Paradice Investment Management Denver, Colorado $532M AUM 29.6% 1-Year Est. Return
FGP
Freestone Grove Partners San Francisco, California $14.2B AUM 24.58% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

HighTower Advisors's TNDM Position: Q3 2025 in Review

HighTower Advisors sold out of Tandem Diabetes Care (TNDM) in Q3 2025, closing a stake of 121,460 shares — an estimated $2.26M sold.

HighTower Advisors first reported a position in TNDM in Q1 2015 and held it in 16 quarters. The position peaked at $4.1M in Q1 2015. 255 funds tracked by Wall St. Rank hold TNDM as of Q3 2025.

  • HighTower Advisors reported no remaining Tandem Diabetes Care position as of Q3 2025 after selling out during the quarter.
  • HighTower Advisors sold 121,460 Tandem Diabetes Care shares in Q3 2025, an estimated $2.26M.
  • HighTower Advisors first reported a position in Tandem Diabetes Care in Q1 2015 and held it in 16 quarters.
  • HighTower Advisors's Tandem Diabetes Care position peaked at $4.1M in Q1 2015.
  • 255 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q3 2025.

Based on HighTower Advisors's 13F filing for Q3 2025, filed 7 Nov 2025.