Simplex Trading’s Tandem Diabetes Care TNDM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | – | Sell |
-2,903
| Closed | -$50.7K | – | 10314 |
|
|
2026
Q1 | $55.6K | Buy |
+2,903
| New | +$63.1K | ﹤0.01% | 5755 |
|
|
2025
Q4 | – | Sell |
-3,558
| Closed | -$64.2K | – | 10081 |
|
|
2025
Q3 | $43K | Sell |
3,558
-6,876
| -66% | -$93.1K | ﹤0.01% | 6614 |
|
|
2025
Q2 | $194K | Buy |
10,434
+8,931
| +594% | +$177K | ﹤0.01% | 4537 |
|
|
2025
Q1 | $28K | Buy |
+1,503
| New | +$44K | ﹤0.01% | 6316 |
|
|
2024
Q1 | – | Sell |
-19,801
| Closed | -$531K | – | 9898 |
|
|
2023
Q4 | $585K | Buy |
+19,801
| New | +$411K | ﹤0.01% | 3527 |
|
|
2023
Q1 | – | Sell |
-18,131
| Closed | -$751K | – | 10136 |
|
|
2022
Q4 | $814K | Buy |
+18,131
| New | +$821K | ﹤0.01% | 2681 |
|
|
2022
Q2 | – | Sell |
-1,713
| Closed | -$141K | – | 11111 |
|
|
2022
Q1 | $199K | Buy |
+1,713
| New | +$200K | ﹤0.01% | 5156 |
|
|
2021
Q1 | – | Sell |
-4,298
| Closed | -$399K | – | 10038 |
|
|
2020
Q4 | $411K | Buy |
+4,298
| New | +$443K | ﹤0.01% | 3684 |
|
|
2020
Q3 | – | Sell |
-7,534
| Closed | -$792K | – | 8520 |
|
|
2020
Q2 | $745K | Sell |
7,534
-12,091
| -62% | -$965K | ﹤0.01% | 2428 |
|
|
2020
Q1 | $1.26M | Buy |
19,625
+8,013
| +69% | +$561K | ﹤0.01% | 1672 |
|
|
2019
Q4 | $692K | Buy |
+11,612
| New | +$716K | ﹤0.01% | 2418 |
|
|
2019
Q2 | – | Sell |
-80
| Closed | -$5.16K | – | 7790 |
|
|
2019
Q1 | $5K | Buy |
+80
| New | +$4.2K | ﹤0.01% | 6489 |
|
|
2018
Q4 | – | Sell |
-200
| Closed | -$7.06K | – | 7826 |
|
|
2018
Q3 | $8K | Buy |
200
+100
| +100% | +$3.49K | ﹤0.01% | 6541 |
|
|
2018
Q2 | $2K | Buy |
+100
| New | +$1.23K | ﹤0.01% | 7057 |
|
|
2017
Q2 | – | Sell |
-4,304
| Closed | -$51K | – | 6795 |
|
|
2017
Q1 | $51K | Buy |
4,304
+3,056
| +245% | +$66.8K | ﹤0.01% | 2350 |
|
|
2016
Q4 | $26K | Buy |
1,248
+1,110
| +804% | +$42.7K | ﹤0.01% | 2804 |
|
|
2016
Q3 | $10K | Buy |
+138
| New | +$10.1K | ﹤0.01% | 3641 |
|
|
2016
Q1 | – | Sell |
-102
| Closed | -$12K | – | 6247 |
|
|
2015
Q4 | $12K | Buy |
+102
| New | +$10.1K | ﹤0.01% | 3155 |
|
|
2015
Q3 | – | Sell |
-78
| Closed | -$8K | – | 6197 |
|
|
2015
Q2 | $8K | Sell |
78
-8
| -9% | -$995 | ﹤0.01% | 3279 |
|
|
2015
Q1 | $10K | Buy |
+86
| New | +$11.2K | ﹤0.01% | 2961 |
|
Other funds holding TNDM
SC
FLAM
GKIM
PIM
Simplex Trading's TNDM Position: Q2 2026 in Review
Simplex Trading sold out of Tandem Diabetes Care (TNDM) in Q2 2026, closing a stake of 2,903 shares — an estimated $50.7K sold.
Simplex Trading first reported a position in TNDM in Q1 2015 and held it in 20 quarters. The position peaked at $1.26M in Q1 2020. 274 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.
- Simplex Trading reported no remaining Tandem Diabetes Care position as of Q2 2026 after selling out during the quarter.
- Simplex Trading sold 2,903 Tandem Diabetes Care shares in Q2 2026, an estimated $50.7K.
- Simplex Trading first reported a position in Tandem Diabetes Care in Q1 2015 and held it in 20 quarters.
- Simplex Trading's Tandem Diabetes Care position peaked at $1.26M in Q1 2020.
- 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.
Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.