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OP Asset Management’s Tandem Diabetes Care TNDM Stock Holding History

OP Asset 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 		– Sell
-1,835
Closed -$35.2K – 826
2026
Q1 		$35.2K Sell
1,835
-15,279
-89% -$332K ﹤0.01% 776
2025
Q4 		$376K Hold
17,114
– – ﹤0.01% 682
2025
Q3 		$208K Hold
17,114
– – ﹤0.01% 734
2025
Q2 		$319K Sell
17,114
-5,886
-26% -$117K ﹤0.01% 700
2025
Q1 		$441K Buy
+23,000
New +$673K 0.01% 681

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 $3.38T AUM 44.17% 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

OP Asset Management's TNDM Position: Q2 2026 in Review

OP Asset Management sold out of Tandem Diabetes Care (TNDM) in Q2 2026, closing a stake of 1,835 shares — an estimated $35.2K sold.

OP Asset Management first reported a position in TNDM in Q1 2025 and held it in 5 quarters. The position peaked at $441K in Q1 2025. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • OP Asset Management reported no remaining Tandem Diabetes Care position as of Q2 2026 after selling out during the quarter.
  • OP Asset Management sold 1,835 Tandem Diabetes Care shares in Q2 2026, an estimated $35.2K.
  • OP Asset Management first reported a position in Tandem Diabetes Care in Q1 2025 and held it in 5 quarters.
  • OP Asset Management's Tandem Diabetes Care position peaked at $441K in Q1 2025.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on OP Asset Management's 13F filing for Q2 2026, filed 28 Jul 2026.