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Champlain Investment Partners’s Tandem Diabetes Care TNDM Stock Holding History

Champlain Investment 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
2025
Q3 		– Sell
-1,455,123
Closed -$27.1M – 141
2025
Q2 		$27.1M Buy
1,455,123
+86,235
+6% +$1.71M 0.19% 128
2025
Q1 		$26.2M Sell
1,368,888
-10,975
-0.8% -$321K 0.19% 135
2024
Q4 		$49.7M Sell
1,379,863
-89,298
-6% -$3.02M 0.31% 110
2024
Q3 		$62.3M Sell
1,469,161
-160,366
-10% -$6.8M 0.38% 95
2024
Q2 		$65.7M Buy
1,629,527
+115,970
+8% +$4.84M 0.4% 95
2024
Q1 		$53.6M Sell
1,513,557
-16,275
-1% -$436K 0.31% 105
2023
Q4 		$45.3M Sell
1,529,832
-86,047
-5% -$1.79M 0.27% 111
2023
Q3 		$33.6M Sell
1,615,879
-2,841
-0.2% -$78K 0.22% 118
2023
Q2 		$39.7M Sell
1,618,720
-1,654,393
-51% -$53.2M 0.24% 112
2023
Q1 		$133M Buy
3,273,113
+204,250
+7% +$8.46M 0.84% 49
2022
Q4 		$138M Sell
3,068,863
-55,110
-2% -$2.49M 0.88% 45
2022
Q3 		$149M Buy
3,123,973
+484,310
+18% +$26.6M 1.02% 31
2022
Q2 		$156M Buy
2,639,663
+1,098,338
+71% +$90.2M 1.01% 35
2022
Q1 		$179M Buy
1,541,325
+54,812
+4% +$6.4M 0.93% 42
2021
Q4 		$224M Sell
1,486,513
-7,325
-0.5% -$989K 1.01% 31
2021
Q3 		$178M Sell
1,493,838
-52,732
-3% -$5.81M 0.85% 46
2021
Q2 		$151M Buy
1,546,570
+204,410
+15% +$18.2M 0.72% 58
2021
Q1 		$118M Buy
+1,342,160
New +$125M 0.62% 74

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SC
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ACH
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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
HRCM
Hood River Capital Management Palm Beach Gardens, Florida $9.98B AUM 145.42% 1-Year Est. Return
PIM
Paradice Investment Management Denver, Colorado $532M AUM 29.6% 1-Year Est. Return
FGP
Freestone Grove Partners San Francisco, California $14.2B AUM 24.58% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Champlain Investment Partners's TNDM Position: Q3 2025 in Review

Champlain Investment Partners sold out of Tandem Diabetes Care (TNDM) in Q3 2025, closing a stake of 1,455,123 shares — an estimated $27.1M sold.

Champlain Investment Partners first reported a position in TNDM in Q1 2021 and held it in 18 quarters. The position peaked at $224M in Q4 2021. 255 funds tracked by Wall St. Rank hold TNDM as of Q3 2025.

  • Champlain Investment Partners reported no remaining Tandem Diabetes Care position as of Q3 2025 after selling out during the quarter.
  • Champlain Investment Partners sold 1,455,123 Tandem Diabetes Care shares in Q3 2025, an estimated $27.1M.
  • Champlain Investment Partners first reported a position in Tandem Diabetes Care in Q1 2021 and held it in 18 quarters.
  • Champlain Investment Partners's Tandem Diabetes Care position peaked at $224M in Q4 2021.
  • 255 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q3 2025.

Based on Champlain Investment Partners's 13F filing for Q3 2025, filed 12 Nov 2025.