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GSA Capital Partners’s Tandem Diabetes Care TNDM Stock Holding History

GSA Capital Partners’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 		$1.02M Buy
67,901
+45,365
+201% +$792K 0.06% 492
2026
Q1 		$432K Sell
22,536
-8,648
-28% -$188K 0.03% 1009
2025
Q4 		$685K Sell
31,184
-67,757
-68% -$1.22M 0.06% 609
2025
Q3 		$1.2M Buy
+98,941
New +$1.34M 0.1% 291
2025
Q2 		– Sell
-130,595
Closed -$2.5M – 2149
2025
Q1 		$2.5M Buy
+130,595
New +$3.82M 0.23% 27
2024
Q3 		– Sell
-19,260
Closed -$776K – 2011
2024
Q2 		$776K Buy
19,260
+10,867
+129% +$453K 0.05% 685
2024
Q1 		$297K Buy
+8,393
New +$225K 0.02% 1223
2022
Q4 		– Sell
-10,138
Closed -$485K – 1890
2022
Q3 		$485K Buy
10,138
+4,877
+93% +$267K 0.06% 589
2022
Q2 		$311K Buy
5,261
+1,244
+31% +$102K 0.05% 800
2022
Q1 		$467K Buy
+4,017
New +$469K 0.06% 584
2021
Q3 		– Sell
-2,092
Closed -$204K – 1771
2021
Q2 		$204K Buy
+2,092
New +$187K 0.02% 1176
2020
Q4 		– Sell
-2,061
Closed -$234K – 1597
2020
Q3 		$234K Buy
+2,061
New +$217K 0.04% 909
2019
Q3 		– Sell
-9,368
Closed -$604K – 1710
2019
Q2 		$604K Buy
9,368
+513
+6% +$33.1K 0.07% 547
2019
Q1 		$562K Buy
+8,855
New +$465K 0.06% 626
2018
Q4 		– Sell
-15,118
Closed -$648K – 1735
2018
Q3 		$648K Buy
+15,118
New +$528K 0.04% 942

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

GSA Capital Partners's TNDM Position: Q2 2026 in Review

GSA Capital Partners increased its Tandem Diabetes Care (TNDM) stake by 201% in Q2 2026, buying an estimated $792K and bringing the position to 67,901 shares worth $1.02M. The position accounts for 0.06% of the portfolio, ranked #492.

GSA Capital Partners first reported a position in TNDM in Q3 2018 and has held it in 15 quarters since. The position peaked at $2.5M in Q1 2025. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • GSA Capital Partners held 67,901 shares of Tandem Diabetes Care worth $1.02M as of Q2 2026.
  • GSA Capital Partners bought 45,365 Tandem Diabetes Care shares in Q2 2026, an estimated $792K.
  • Tandem Diabetes Care made up 0.06% of GSA Capital Partners's portfolio in Q2 2026, its #492 holding.
  • GSA Capital Partners first reported a position in Tandem Diabetes Care in Q3 2018 and has held it in 15 quarters since.
  • GSA Capital Partners's Tandem Diabetes Care position peaked at $2.5M in Q1 2025.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on GSA Capital Partners's 13F filing for Q2 2026, filed 6 Aug 2026.