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Aster Capital Management’s Tandem Diabetes Care TNDM Stock Holding History

Aster Capital 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
2026
Q2 		$13.2K Sell
873
-957
-52% -$16.7K ﹤0.01% 645
2026
Q1 		$35.1K Buy
+1,830
New +$39.8K 0.01% 488
2025
Q4 		– Sell
-5,149
Closed -$62.5K – 1421
2025
Q3 		$62.5K Buy
5,149
+4,269
+485% +$57.8K 0.03% 466
2025
Q2 		$16.4K Buy
+880
New +$17.4K ﹤0.01% 734
2024
Q4 		– Sell
-657
Closed -$27.9K – 1523
2024
Q3 		$27.9K Buy
+657
New +$27.9K 0.01% 621

Other funds holding TNDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SC
Sessa Capital New York $5.98B AUM 99.85% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
FLAM
First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
GKIM
GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
PIM
Paradice Investment Management Denver, Colorado $627M AUM 43.41% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Aster Capital Management's TNDM Position: Q2 2026 in Review

Aster Capital Management reduced its Tandem Diabetes Care (TNDM) stake by 52% in Q2 2026, selling an estimated $16.7K and leaving 873 shares worth $13.2K. The position accounts for ﹤0.01% of the portfolio, ranked #645.

Aster Capital Management first reported a position in TNDM in Q3 2024 and has held it in 5 quarters since. The position peaked at $62.5K in Q3 2025. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • Aster Capital Management held 873 shares of Tandem Diabetes Care worth $13.2K as of Q2 2026.
  • Aster Capital Management sold 957 Tandem Diabetes Care shares in Q2 2026, an estimated $16.7K.
  • Tandem Diabetes Care made up ﹤0.01% of Aster Capital Management's portfolio in Q2 2026, its #645 holding.
  • Aster Capital Management first reported a position in Tandem Diabetes Care in Q3 2024 and has held it in 5 quarters since.
  • Aster Capital Management's Tandem Diabetes Care position peaked at $62.5K in Q3 2025.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Aster Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.