Cliff Asness's TNDM Position Overview
Cliff Asness (via Aqr Capital Management LLC) currently holds 331,916 shares of Tandem Diabetes Care, Inc. (TNDM) worth $6.36 M, representing 0.00% of the portfolio. First purchased in 2018-Q3, this long-term strategic position has been held for 27 quarters.
Based on 13F filings, Cliff Asness has maintained a strategic position in TNDM, demonstrating sustained confidence in this investment. Largest addition occurred in Q3 2025, adding 374,141 shares. Largest reduction occurred in Q1 2019, reducing 203,416 shares.
Analysis based on 13F filings available since 2013 Q2
Cliff Asness's Tandem Diabetes Care (TNDM) Holding Value Over Time
Track share changes against reported price movement
Quarterly Tandem Diabetes Care (TNDM) Trades by Cliff Asness
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q1 2026 | -7,663 | Reduce 2.26% | 331,916 | $19.17 |
| Q4 2025 | -75,566 | Reduce 18.20% | 339,579 | $21.98 |
| Q3 2025 | +374,141 | Add 912.45% | 415,145 | $11.71 |
| Q2 2025 | +28,935 | Add 239.75% | 41,004 | $18.64 |
| Q1 2025 | -1,836 | Reduce 13.20% | 12,069 | $19.06 |
| Q4 2024 | +5,416 | Add 63.80% | 13,905 | $36.02 |
| Q3 2024 | +1,162 | Add 15.86% | 8,489 | $42.41 |
| Q2 2024 | +7,327 | New Buy | 7,327 | $40.29 |
| Q2 2023 | -4,945 | Sold Out | 0 | $0.00 |
| Q1 2023 | +4,945 | New Buy | 4,945 | $40.61 |
| Q3 2022 | -27,441 | Sold Out | 0 | $0.00 |
| Q2 2022 | +4,171 | Add 17.92% | 27,441 | $58.45 |
| Q1 2022 | +19,452 | Add 509.48% | 23,270 | $116.29 |
| Q4 2021 | +2,113 | Add 123.93% | 3,818 | $150.60 |
| Q3 2021 | +1,705 | New Buy | 1,705 | $119.65 |
| Q2 2021 | -10,826 | Sold Out | 0 | $0.00 |
| Q1 2021 | -211 | Reduce 1.91% | 10,826 | $86.55 |
| Q4 2020 | +3,130 | Add 39.59% | 11,037 | $95.32 |
| Q3 2020 | -33,580 | Reduce 80.94% | 7,907 | $113.32 |
| Q2 2020 | +3,579 | Add 9.44% | 41,487 | $98.92 |
| Q1 2020 | -16,270 | Reduce 30.03% | 37,908 | $64.34 |
| Q4 2019 | -83,498 | Reduce 60.65% | 54,178 | $59.62 |
| Q3 2019 | -145,329 | Reduce 51.35% | 137,676 | $58.98 |
| Q2 2019 | -53,615 | Reduce 15.93% | 283,005 | $64.52 |
| Q1 2019 | -203,416 | Reduce 37.67% | 336,620 | $63.50 |
| Q4 2018 | +161,526 | Add 42.67% | 540,036 | $37.97 |
| Q3 2018 | +378,510 | New Buy | 378,510 | $42.84 |
Cliff Asness's Tandem Diabetes Care Investment FAQs
Cliff Asness first purchased Tandem Diabetes Care, Inc. (TNDM) in Q3 2018, acquiring 378,510 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Cliff Asness has held Tandem Diabetes Care, Inc. (TNDM) for 27 quarters since Q3 2018.
Cliff Asness's largest addition to Tandem Diabetes Care, Inc. (TNDM) was in Q3 2018, adding 378,510 shares worth $16.22 M.
According to the latest 13F filing for Q1 2026, Cliff Asness's firm, Aqr Capital Management LLC, owns 331,916 shares of Tandem Diabetes Care, Inc. (TNDM), valued at approximately $6.36 M.
As of the Q1 2026 filing, Tandem Diabetes Care, Inc. (TNDM) represents approximately 0.00% of Cliff Asness's publicly disclosed stock portfolio, making it one of their key holdings.
Cliff Asness's peak holding in Tandem Diabetes Care, Inc. (TNDM) was 540,036 shares, as reported at the end of Q4 2018.