Mangrove Partners’s Tandem Diabetes Care TNDM Stock Holding History

Mangrove Partners’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	-82,428	Closed	-$1.58M	–	215
2025 Q1	$1.58M	Buy	82,428 +33,687	+69%	+$986K	0.17%	65
2024 Q4	$1.76M	Buy	48,741 +28,042	+135%	+$949K	0.19%	63
2024 Q3	$878K	Buy	+20,699	New	+$878K	0.08%	114

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

Mangrove Partners's TNDM Position: Q2 2025 in Review

Mangrove Partners sold out of Tandem Diabetes Care (TNDM) in Q2 2025, closing a stake of 82,428 shares — an estimated $1.58M sold.

Mangrove Partners first reported a position in TNDM in Q3 2024 and held it in 3 quarters. The position peaked at $1.76M in Q4 2024. 270 funds tracked by Wall St. Rank hold TNDM as of Q2 2025.

Mangrove Partners reported no remaining Tandem Diabetes Care position as of Q2 2025 after selling out during the quarter.
Mangrove Partners sold 82,428 Tandem Diabetes Care shares in Q2 2025, an estimated $1.58M.
Mangrove Partners first reported a position in Tandem Diabetes Care in Q3 2024 and held it in 3 quarters.
Mangrove Partners's Tandem Diabetes Care position peaked at $1.76M in Q4 2024.
270 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2025.

Based on Mangrove Partners's 13F filing for Q2 2025, filed 14 Aug 2025.