SGI
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Summit Global Investments’s Tandem Diabetes Care TNDM Stock Holding History

Summit Global Investments’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 		$328K Buy
+21,736
New +$380K 0.02% 429
2021
Q4 		– Sell
-7,700
Closed -$919K – 614
2021
Q3 		$919K Sell
7,700
-3,600
-32% -$397K 0.07% 219
2021
Q2 		$1.1M Buy
+11,300
New +$1.01M 0.07% 220

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

Summit Global Investments's TNDM Position: Q2 2026 in Review

Summit Global Investments opened a new position in Tandem Diabetes Care (TNDM) in Q2 2026: 21,736 shares worth $328K. The stake represents 0.02% of the portfolio and ranks #429 among its holdings. This is a return to the name: Summit Global Investments previously reported a position in TNDM as recently as Q3 2021.

Summit Global Investments first reported a position in TNDM in Q2 2021 and has held it in 3 quarters since. The position peaked at $1.1M in Q2 2021. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • Summit Global Investments held 21,736 shares of Tandem Diabetes Care worth $328K as of Q2 2026.
  • Tandem Diabetes Care was a new Summit Global Investments position in Q2 2026.
  • Tandem Diabetes Care made up 0.02% of Summit Global Investments's portfolio in Q2 2026, its #429 holding.
  • Summit Global Investments first reported a position in Tandem Diabetes Care in Q2 2021 and has held it in 3 quarters since.
  • Summit Global Investments's Tandem Diabetes Care position peaked at $1.1M in Q2 2021.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Summit Global Investments's 13F filing for Q2 2026, filed 3 Aug 2026.