SGA
TNDM icon

Sector Gamma AS’s Tandem Diabetes Care TNDM Stock Holding History

Sector Gamma AS’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 		$4.03M Hold
267,091
– – 0.87% 35
2026
Q1 		$5.12M Hold
267,091
– – 1.21% 27
2025
Q4 		$5.87M Sell
267,091
-2,451
-0.9% -$44.2K 1.34% 25
2025
Q3 		$3.27M Buy
269,542
+59,019
+28% +$799K 0.81% 36
2025
Q2 		$3.92M Buy
210,523
+30,000
+17% +$594K 1.28% 31
2025
Q1 		$3.46M Buy
+180,523
New +$5.28M 1.11% 25

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

Sector Gamma AS's TNDM Position: Q2 2026 in Review

Sector Gamma AS held its Tandem Diabetes Care (TNDM) position steady in Q2 2026 at 267,091 shares worth $4.03M. The position accounts for 0.87% of the portfolio, ranked #35.

Sector Gamma AS first reported a position in TNDM in Q1 2025 and has held it in 6 quarters since. The position peaked at $5.87M in Q4 2025. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • Sector Gamma AS held 267,091 shares of Tandem Diabetes Care worth $4.03M as of Q2 2026.
  • Sector Gamma AS left its Tandem Diabetes Care share count unchanged in Q2 2026.
  • Tandem Diabetes Care made up 0.87% of Sector Gamma AS's portfolio in Q2 2026, its #35 holding.
  • Sector Gamma AS first reported a position in Tandem Diabetes Care in Q1 2025 and has held it in 6 quarters since.
  • Sector Gamma AS's Tandem Diabetes Care position peaked at $5.87M in Q4 2025.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Sector Gamma AS's 13F filing for Q2 2026, filed 12 Aug 2026.