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Cornerstone Planning Group’s Tandem Diabetes Care TNDM Stock Holding History

Cornerstone Planning Group’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 		$777 Hold
40
– – ﹤0.01% 1529
2025
Q4 		$764 Sell
40
-83
-67% -$1.5K ﹤0.01% 1405
2025
Q3 		$18.7K Buy
+123
New +$1.67K ﹤0.01% 606

Other funds holding TNDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
SC
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
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
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Cornerstone Planning Group's TNDM Position: Q1 2026 in Review

Cornerstone Planning Group held its Tandem Diabetes Care (TNDM) position steady in Q1 2026 at 40 shares worth $777. The position accounts for ﹤0.01% of the portfolio, ranked #1529.

Cornerstone Planning Group first reported a position in TNDM in Q3 2025 and has held it in 3 quarters since. The position peaked at $18.7K in Q3 2025. 272 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

  • Cornerstone Planning Group held 40 shares of Tandem Diabetes Care worth $777 as of Q1 2026.
  • Cornerstone Planning Group left its Tandem Diabetes Care share count unchanged in Q1 2026.
  • Tandem Diabetes Care made up ﹤0.01% of Cornerstone Planning Group's portfolio in Q1 2026, its #1529 holding.
  • Cornerstone Planning Group first reported a position in Tandem Diabetes Care in Q3 2025 and has held it in 3 quarters since.
  • Cornerstone Planning Group's Tandem Diabetes Care position peaked at $18.7K in Q3 2025.
  • 272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on Cornerstone Planning Group's 13F filing for Q1 2026, filed 6 May 2026.