Smartleaf Asset Management
TNDM icon

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

Smartleaf 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
Q3 		$23.8K Buy
1,436
+996
+226% +$18.7K ﹤0.01% 2026
2026
Q2 		$6.96K Hold
440
– – ﹤0.01% 2539
2026
Q1 		$8.62K Sell
440
-890
-67% -$19.3K ﹤0.01% 2397
2025
Q4 		$29.9K Buy
1,330
+593
+80% +$10.7K ﹤0.01% 1813
2025
Q3 		$8.69K Sell
737
-513
-41% -$6.94K ﹤0.01% 2174
2025
Q2 		$23.7K Buy
1,250
+242
+24% +$4.79K ﹤0.01% 1480
2025
Q1 		$19.4K Sell
1,008
-767
-43% -$22.4K ﹤0.01% 1616
2024
Q4 		$65.4K Buy
1,775
+1,101
+163% +$37.2K 0.01% 1045
2024
Q3 		$28.6K Buy
674
+26
+4% +$1.1K ﹤0.01% 1143
2024
Q2 		$26.2K Buy
648
+644
+16,100% +$26.9K ﹤0.01% 932
2024
Q1 		$141 Hold
4
– – ﹤0.01% 1832
2023
Q4 		$0 Buy
+4
New +$83 ﹤0.01% 1231

Other funds holding TNDM

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
GW&K Investment Management
GW&K Investment Management Boston, Massachusetts $11.8B AUM 29.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Paradice Investment Management
Paradice Investment Management Denver, Colorado $594M AUM 28.38% 1-Year Est. Return
BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $294B AUM 47.59% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Smartleaf Asset Management's TNDM Position: Q3 2026 in Review

Smartleaf Asset Management increased its Tandem Diabetes Care (TNDM) stake by 226% in Q3 2026, buying an estimated $18.7K and bringing the position to 1,436 shares worth $23.8K. The position accounts for ﹤0.01% of the portfolio, ranked #2026.

Smartleaf Asset Management first reported a position in TNDM in Q4 2023 and has held it in 12 quarters since. The position peaked at $65.4K in Q4 2024. 203 funds tracked by Wall St. Rank hold TNDM as of Q3 2026.

  • Smartleaf Asset Management held 1,436 shares of Tandem Diabetes Care worth $23.8K as of Q3 2026.
  • Smartleaf Asset Management bought 996 Tandem Diabetes Care shares in Q3 2026, an estimated $18.7K.
  • Tandem Diabetes Care made up ﹤0.01% of Smartleaf Asset Management's portfolio in Q3 2026, its #2026 holding.
  • Smartleaf Asset Management first reported a position in Tandem Diabetes Care in Q4 2023 and has held it in 12 quarters since.
  • Smartleaf Asset Management's Tandem Diabetes Care position peaked at $65.4K in Q4 2024.
  • 203 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q3 2026.

Based on Smartleaf Asset Management's 13F filing for Q3 2026, filed 10 Nov 2026.