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Engineers Gate Manager’s Tandem Diabetes Care TNDM Stock Holding History

Engineers Gate Manager’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 		$976K Buy
+64,662
New +$1.13M 0.01% 1100
2026
Q1 		– Sell
-88,547
Closed -$1.95M – 2567
2025
Q4 		$1.95M Buy
+88,547
New +$1.6M 0.02% 721
2025
Q3 		– Sell
-170,488
Closed -$3.18M – 2539
2025
Q2 		$3.18M Sell
170,488
-20,417
-11% -$404K 0.04% 527
2025
Q1 		$3.66M Sell
190,905
-31,900
-14% -$933K 0.06% 445
2024
Q4 		$8.03M Buy
222,805
+143,702
+182% +$4.86M 0.14% 204
2024
Q3 		$3.35M Sell
79,103
-16,985
-18% -$720K 0.07% 412
2024
Q2 		$3.87M Buy
96,088
+11,141
+13% +$465K 0.09% 329
2024
Q1 		$3.01M Buy
+84,947
New +$2.28M 0.08% 348
2023
Q3 		– Sell
-8,504
Closed -$209K – 2085
2023
Q2 		$209K Buy
+8,504
New +$274K 0.01% 1460
2023
Q1 		– Sell
-36,977
Closed -$1.66M – 1999
2022
Q4 		$1.66M Buy
36,977
+27,467
+289% +$1.24M 0.1% 248
2022
Q3 		$455K Sell
9,510
-103,949
-92% -$5.7M 0.03% 876
2022
Q2 		$6.72M Buy
113,459
+104,331
+1,143% +$8.56M 0.25% 76
2022
Q1 		$1.06M Sell
9,128
-1,662
-15% -$194K 0.04% 620
2021
Q4 		$1.62M Sell
10,790
-1,926
-15% -$260K 0.07% 361
2021
Q3 		$1.52M Buy
12,716
+4,492
+55% +$495K 0.09% 320
2021
Q2 		$801K Sell
8,224
-7,618
-48% -$679K 0.05% 529
2021
Q1 		$1.4M Sell
15,842
-15,808
-50% -$1.47M 0.07% 425
2020
Q4 		$3.03M Buy
31,650
+15,662
+98% +$1.61M 0.13% 197
2020
Q3 		$1.81M Buy
+15,988
New +$1.68M 0.09% 339
2020
Q2 		– Sell
-3,359
Closed -$216K – 1974
2020
Q1 		$216K Sell
3,359
-5,921
-64% -$415K 0.02% 1221
2019
Q4 		$553K Sell
9,280
-21,686
-70% -$1.34M 0.02% 944
2019
Q3 		$1.83M Buy
+30,966
New +$1.98M 0.09% 332
2019
Q1 		– Sell
-24,873
Closed -$944K – 1150
2018
Q4 		$944K Sell
24,873
-66,350
-73% -$2.34M 0.08% 373
2018
Q3 		$3.91M Sell
91,223
-7,538
-8% -$263K 0.3% 88
2018
Q2 		$2.17M Buy
+98,761
New +$1.21M 0.17% 192

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

Engineers Gate Manager's TNDM Position: Q2 2026 in Review

Engineers Gate Manager opened a new position in Tandem Diabetes Care (TNDM) in Q2 2026: 64,662 shares worth $976K. The stake represents 0.01% of the portfolio and ranks #1100 among its holdings. This is a return to the name: Engineers Gate Manager previously reported a position in TNDM as recently as Q4 2025.

Engineers Gate Manager first reported a position in TNDM in Q2 2018 and has held it in 25 quarters since. The position peaked at $8.03M in Q4 2024. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • Engineers Gate Manager held 64,662 shares of Tandem Diabetes Care worth $976K as of Q2 2026.
  • Tandem Diabetes Care was a new Engineers Gate Manager position in Q2 2026.
  • Tandem Diabetes Care made up 0.01% of Engineers Gate Manager's portfolio in Q2 2026, its #1100 holding.
  • Engineers Gate Manager first reported a position in Tandem Diabetes Care in Q2 2018 and has held it in 25 quarters since.
  • Engineers Gate Manager's Tandem Diabetes Care position peaked at $8.03M in Q4 2024.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Engineers Gate Manager's 13F filing for Q2 2026, filed 14 Aug 2026.