Renaissance Technologies's DXCM Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 1.44 M shares of DexCom, Inc. (DXCM) worth $95.89 M, representing 0.15% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 47 quarters.
Based on 13F filings since 2013, Renaissance Technologies has maintained a long-term strategic position in DXCM, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2019, adding 2.58 M shares. Largest reduction occurred in Q2 2019, reducing 3.84 M shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's DexCom (DXCM) Holding Value Over Time
Track share changes against reported price movement
Quarterly DexCom (DXCM) Trades by Renaissance Technologies
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | +603,232 | Add 71.68% | 1.44 M | $66.37 |
| Q3 2025 | +143,762 | Add 20.60% | 841,564 | $67.29 |
| Q2 2025 | +67,028 | Add 10.63% | 697,802 | $87.29 |
| Q1 2025 | -259,100 | Reduce 29.12% | 630,774 | $68.29 |
| Q4 2024 | +58,902 | Add 7.09% | 889,874 | $77.77 |
| Q3 2024 | +368,400 | Add 79.64% | 830,972 | $67.04 |
| Q2 2024 | -385,100 | Reduce 45.43% | 462,572 | $113.38 |
| Q1 2024 | +844,972 | Add 31295.26% | 847,672 | $138.70 |
| Q4 2023 | +2,700 | New Buy | 2,700 | $124.07 |
| Q3 2023 | -168,600 | Sold Out | 0 | $0.00 |
| Q2 2023 | -121,600 | Reduce 41.90% | 168,600 | $0.13 |
| Q1 2023 | +212,900 | Add 275.42% | 290,200 | $0.12 |
| Q4 2022 | +71,400 | Add 1210.17% | 77,300 | $0.11 |
| Q3 2022 | -888,672 | Reduce 99.34% | 5,900 | $80.51 |
| Q2 2022 | +801,772 | Add 863.98% | 894,572 | $74.53 |
| Q1 2022 | -466,972 | Reduce 83.42% | 92,800 | $127.90 |
| Q4 2021 | +559,772 | New Buy | 559,772 | $134.24 |
| Q2 2021 | -576,172 | Sold Out | 0 | $0.00 |
| Q1 2021 | -563,864 | Reduce 49.46% | 576,172 | $89.85 |
| Q4 2020 | -1.79 M | Reduce 61.06% | 1.14 M | $92.43 |
| Q3 2020 | -1.8 M | Reduce 38.13% | 2.93 M | $103.06 |
| Q2 2020 | +934,988 | Add 24.62% | 4.73 M | $101.35 |
| Q1 2020 | +996,344 | Add 35.57% | 3.8 M | $67.32 |
| Q4 2019 | +2.58 M | Add 1163.98% | 2.8 M | $54.68 |
| Q3 2019 | -982,172 | Reduce 81.59% | 221,600 | $37.31 |
| Q2 2019 | -3.84 M | Reduce 76.16% | 1.2 M | $37.46 |
| Q1 2019 | +1.15 M | Add 29.51% | 5.05 M | $29.78 |
| Q4 2018 | +1.57 M | Add 67.15% | 3.9 M | $29.95 |
| Q3 2018 | +767,664 | Add 49.07% | 2.33 M | $35.76 |
| Q2 2018 | +920,800 | Add 143.03% | 1.56 M | $23.75 |
| Q1 2018 | +643,772 | New Buy | 643,772 | $18.54 |
| Q2 2017 | -1.18 M | Sold Out | 0 | $0.00 |
| Q1 2017 | +630,000 | Add 114.43% | 1.18 M | $21.18 |
| Q4 2016 | +550,572 | New Buy | 550,572 | $14.92 |
| Q3 2016 | -1.37 M | Sold Out | 0 | $0.00 |
| Q2 2016 | -1.9 M | Reduce 58.21% | 1.37 M | $19.83 |
| Q1 2016 | +496,000 | Add 17.87% | 3.27 M | $16.98 |
| Q4 2015 | +2.23 M | Add 407.85% | 2.78 M | $20.48 |
| Q3 2015 | +438,972 | Add 407.97% | 546,572 | $21.46 |
| Q2 2015 | -169,772 | Reduce 61.21% | 107,600 | $19.99 |
| Q1 2015 | -800,000 | Reduce 74.25% | 277,372 | $15.59 |
| Q4 2014 | +1.08 M | New Buy | 1.08 M | $13.76 |
| Q2 2014 | -1.52 M | Sold Out | 0 | $0.00 |
| Q1 2014 | -706,800 | Reduce 31.69% | 1.52 M | $10.34 |
| Q4 2013 | +1.4 M | Add 168.90% | 2.23 M | $8.85 |
| Q3 2013 | +360,800 | Add 77.00% | 829,372 | $7.05 |
| Q2 2013 | +468,572 | Add 0.00% | 468,572 | $5.61 |
Renaissance Technologies's DexCom Investment FAQs
Renaissance Technologies first purchased DexCom, Inc. (DXCM) in Q2 2013, acquiring 468,572 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies has held DexCom, Inc. (DXCM) for 47 quarters since Q2 2013.
Renaissance Technologies's largest addition to DexCom, Inc. (DXCM) was in Q4 2019, adding 2,800,972 shares worth $153.17 M.
According to the latest 13F filing for Q4 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 1,444,796 shares of DexCom, Inc. (DXCM), valued at approximately $95.89 M.
As of the Q4 2025 filing, DexCom, Inc. (DXCM) represents approximately 0.15% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies's peak holding in DexCom, Inc. (DXCM) was 5,048,564 shares, as reported at the end of Q1 2019.