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Olympiad Research’s Tandem Diabetes Care TNDM Stock Holding History

Olympiad Research’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
Q4 		– Sell
-16,623
Closed -$202K – 227
2025
Q3 		$202K Buy
+16,623
New +$225K 0.28% 167
2022
Q2 		– Sell
-2,517
Closed -$293K – 356
2022
Q1 		$293K Buy
2,517
+660
+36% +$77.1K 0.09% 202
2021
Q4 		$280K Sell
1,857
-680
-27% -$91.8K 0.1% 178
2021
Q3 		$303K Buy
+2,537
New +$280K 0.09% 177

Other funds holding TNDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
SC
Sessa Capital New York $5.51B AUM 47.23% 1-Year Est. Return
ACH
ArrowMark Colorado Holdings Denver, Colorado $3.76B AUM 21.77% 1-Year Est. Return
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
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
PIM
Paradice Investment Management Denver, Colorado $532M AUM 29.6% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return

Olympiad Research's TNDM Position: Q4 2025 in Review

Olympiad Research sold out of Tandem Diabetes Care (TNDM) in Q4 2025, closing a stake of 16,623 shares — an estimated $202K sold.

Olympiad Research first reported a position in TNDM in Q3 2021 and held it in 4 quarters. The position peaked at $303K in Q3 2021. 268 funds tracked by Wall St. Rank hold TNDM as of Q4 2025.

  • Olympiad Research reported no remaining Tandem Diabetes Care position as of Q4 2025 after selling out during the quarter.
  • Olympiad Research sold 16,623 Tandem Diabetes Care shares in Q4 2025, an estimated $202K.
  • Olympiad Research first reported a position in Tandem Diabetes Care in Q3 2021 and held it in 4 quarters.
  • Olympiad Research's Tandem Diabetes Care position peaked at $303K in Q3 2021.
  • 268 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q4 2025.

Based on Olympiad Research's 13F filing for Q4 2025, filed 17 Feb 2026.