Susquehanna Portfolio Strategies’s Tandem Diabetes Care TNDM Stock Holding History

Susquehanna Portfolio Strategies’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	$3.95M	Buy	206,193 +139,741	+210%	+$3.04M	0.06%	341
2025 Q4	$1.46M	Sell	66,452 -139,602	-68%	-$2.52M	0.02%	572
2025 Q3	$2.5M	Sell	206,054 -40,935	-17%	-$554K	0.04%	466
2025 Q2	$4.6M	Buy	+246,989	New	+$4.89M	0.1%	236
2024 Q4	–	Sell	-12,041	Closed	-$511K	–	304
2024 Q3	$511K	Sell	12,041 -2,101	-15%	-$89.1K	0.03%	243
2024 Q2	$570K	Sell	14,142 -14,800	-51%	-$617K	0.02%	349
2024 Q1	$1.02M	Sell	28,942 -5,299	-15%	-$142K	0.02%	454
2023 Q4	$1.01M	Buy	+34,241	New	+$710K	0.02%	595

Other funds holding TNDM

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

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

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Susquehanna Portfolio Strategies's TNDM Position: Q1 2026 in Review

Susquehanna Portfolio Strategies increased its Tandem Diabetes Care (TNDM) stake by 210% in Q1 2026, buying an estimated $3.04M and bringing the position to 206,193 shares worth $3.95M. The position accounts for 0.06% of the portfolio, ranked #341.

Susquehanna Portfolio Strategies first reported a position in TNDM in Q4 2023 and has held it in 8 quarters since. The position peaked at $4.6M in Q2 2025. 272 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

Susquehanna Portfolio Strategies held 206,193 shares of Tandem Diabetes Care worth $3.95M as of Q1 2026.
Susquehanna Portfolio Strategies bought 139,741 Tandem Diabetes Care shares in Q1 2026, an estimated $3.04M.
Tandem Diabetes Care made up 0.06% of Susquehanna Portfolio Strategies's portfolio in Q1 2026, its #341 holding.
Susquehanna Portfolio Strategies first reported a position in Tandem Diabetes Care in Q4 2023 and has held it in 8 quarters since.
Susquehanna Portfolio Strategies's Tandem Diabetes Care position peaked at $4.6M in Q2 2025.
272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on Susquehanna Portfolio Strategies's 13F filing for Q1 2026, filed 15 May 2026.