Two Sigma Advisers
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Two Sigma Advisers’s Tandem Diabetes Care TNDM Stock Holding History

Two Sigma Advisers’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
Q1 		– Sell
-937,983
Closed -$20.6M – 1960
2025
Q4 		$20.6M Sell
937,983
-32,900
-3% -$594K 0.04% 346
2025
Q3 		$11.8M Buy
970,883
+82,800
+9% +$1.12M 0.02% 453
2025
Q2 		$16.6M Buy
888,083
+208,500
+31% +$4.13M 0.03% 376
2025
Q1 		$13M Sell
679,583
-202,200
-23% -$5.92M 0.03% 455
2024
Q4 		$31.8M Sell
881,783
-20,100
-2% -$680K 0.07% 225
2024
Q3 		$38.2M Sell
901,883
-229,700
-20% -$9.74M 0.09% 202
2024
Q2 		$45.6M Buy
1,131,583
+54,700
+5% +$2.28M 0.1% 190
2024
Q1 		$38.1M Buy
1,076,883
+75,300
+8% +$2.02M 0.09% 227
2023
Q4 		$29.6M Sell
1,001,583
-28,800
-3% -$597K 0.07% 257
2023
Q3 		$21.4M Sell
1,030,383
-183,100
-15% -$5.03M 0.05% 296
2023
Q2 		$29.8M Buy
1,213,483
+190,090
+19% +$6.12M 0.08% 238
2023
Q1 		$41.6M Buy
1,023,393
+62,310
+6% +$2.58M 0.11% 190
2022
Q4 		$43.2M Buy
961,083
+260,200
+37% +$11.8M 0.12% 174
2022
Q3 		$33.5M Buy
700,883
+325,000
+86% +$17.8M 0.1% 213
2022
Q2 		$22.2M Buy
375,883
+346,390
+1,174% +$28.4M 0.06% 302
2022
Q1 		$3.43M Buy
+29,493
New +$3.44M 0.01% 974
2021
Q3 		– Sell
-37,825
Closed -$3.68M – 2669
2021
Q2 		$3.68M Sell
37,825
-121,863
-76% -$10.9M 0.01% 1008
2021
Q1 		$14.1M Buy
159,688
+95,595
+149% +$8.88M 0.04% 455
2020
Q4 		$6.13M Sell
64,093
-88,200
-58% -$9.09M 0.02% 740
2020
Q3 		$17.3M Buy
+152,293
New +$16M 0.05% 359
2020
Q2 		– Sell
-39,210
Closed -$2.52M – 2607
2020
Q1 		$2.52M Sell
39,210
-40,600
-51% -$2.84M 0.01% 991
2019
Q4 		$4.76M Sell
79,810
-91,700
-53% -$5.65M 0.01% 870
2019
Q3 		$10.1M Sell
171,510
-158,766
-48% -$10.1M 0.02% 531
2019
Q2 		$21.3M Sell
330,276
-597,296
-64% -$38.5M 0.05% 385
2019
Q1 		$58.9M Buy
927,572
+127,400
+16% +$6.69M 0.15% 175
2018
Q4 		$30.4M Sell
800,172
-96,631
-11% -$3.41M 0.08% 285
2018
Q3 		$38.4M Buy
896,803
+802,831
+854% +$28M 0.09% 250
2018
Q2 		$2.07M Buy
+93,972
New +$1.16M 0.01% 1277

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
ACH
ArrowMark Colorado Holdings Denver, Colorado $2.4B AUM 42.85% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GKIM
GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Two Sigma Advisers's TNDM Position: Q1 2026 in Review

Two Sigma Advisers sold out of Tandem Diabetes Care (TNDM) in Q1 2026, closing a stake of 937,983 shares — an estimated $20.6M sold.

Two Sigma Advisers first reported a position in TNDM in Q2 2018 and held it in 28 quarters. The position peaked at $58.9M in Q1 2019. 273 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

  • Two Sigma Advisers reported no remaining Tandem Diabetes Care position as of Q1 2026 after selling out during the quarter.
  • Two Sigma Advisers sold 937,983 Tandem Diabetes Care shares in Q1 2026, an estimated $20.6M.
  • Two Sigma Advisers first reported a position in Tandem Diabetes Care in Q2 2018 and held it in 28 quarters.
  • Two Sigma Advisers's Tandem Diabetes Care position peaked at $58.9M in Q1 2019.
  • 273 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on Two Sigma Advisers's 13F filing for Q1 2026.