Park West Asset Management’s Tandem Diabetes Care TNDM Stock Holding History

Park West Asset Management’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 Q2	–	Sell	-1,123,052	Closed	-$21.5M	–	57
2025 Q1	$21.5M	Sell	1,123,052 -476,948	-30%	-$14M	1.74%	25
2024 Q4	$57.6M	Buy	1,600,000 +530,000	+50%	+$17.9M	4.63%	4
2024 Q3	$45.4M	Buy	1,070,000 +399,279	+60%	+$16.9M	3.25%	14
2024 Q2	$27M	Sell	670,721 -726,559	-52%	-$30.3M	1.98%	20
2024 Q1	$49.5M	Buy	+1,397,280	New	+$37.4M	3.52%	11
2020 Q3	–	Sell	-150,000	Closed	-$14.8M	–	101
2020 Q2	$14.8M	Buy	+150,000	New	+$12M	0.74%	43
2019 Q4	–	Sell	-550,000	Closed	-$32.4M	–	84
2019 Q3	$32.4M	Buy	+550,000	New	+$35.1M	1.58%	23

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

GKIM

GW&K Investment Management Boston, Massachusetts $11.3B AUM 31.98% 1-Year Est. Return

ACH

ArrowMark Colorado Holdings Denver, Colorado $3.76B AUM 21.77% 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

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

PIM

Paradice Investment Management Denver, Colorado $532M AUM 29.6% 1-Year Est. Return

SIMG

Stephens Investment Management Group Houston, Texas $7.3B AUM 41.96% 1-Year Est. Return

Park West Asset Management's TNDM Position: Q2 2025 in Review

Park West Asset Management sold out of Tandem Diabetes Care (TNDM) in Q2 2025, closing a stake of 1,123,052 shares — an estimated $21.5M sold.

Park West Asset Management first reported a position in TNDM in Q3 2019 and held it in 7 quarters. The position peaked at $57.6M in Q4 2024. 270 funds tracked by Wall St. Rank hold TNDM as of Q2 2025.

Park West Asset Management reported no remaining Tandem Diabetes Care position as of Q2 2025 after selling out during the quarter.
Park West Asset Management sold 1,123,052 Tandem Diabetes Care shares in Q2 2025, an estimated $21.5M.
Park West Asset Management first reported a position in Tandem Diabetes Care in Q3 2019 and held it in 7 quarters.
Park West Asset Management's Tandem Diabetes Care position peaked at $57.6M in Q4 2024.
270 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2025.

Based on Park West Asset Management's 13F filing for Q2 2025, filed 14 Aug 2025.