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
2022 Q4	–	Sell	-5	Closed	-$7K	–	3519
2022 Q3	$7K	Sell	5 -495	-99%	-$27.1K	﹤0.01%	3040
2022 Q2	$6K	Buy	500 +495	+9,900%	+$40.6K	﹤0.01%	3111
2022 Q1	$1K	Buy	+5	New	+$584	﹤0.01%	3381
2021 Q3	–	Sell	-500	Closed	-$1K	–	3438
2021 Q2	$1K	Buy	500 +495	+9,900%	+$44.1K	﹤0.01%	3125
2021 Q1	$7K	Hold	5	–	–	﹤0.01%	2944
2020 Q4	$5K	Buy	+5	New	+$515	﹤0.01%	2539
2020 Q3	–	Sell	-500	Closed	-$1K	–	2697
2020 Q2	$1K	Hold	500	–	–	﹤0.01%	2419
2020 Q1	$10K	Buy	+500	New	+$35K	﹤0.01%	2121
2019 Q2	–	Sell	-700	Closed	-$9K	–	2512
2019 Q1	$9K	Buy	+700	New	+$36.8K	﹤0.01%	2210

Other funds holding TNDM

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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 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 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.