Renaissance Technologies's DXCM Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 841,564 shares of DexCom, Inc. (DXCM) worth $56.63 M, representing 0.07% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 50 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
| Period | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +468,576 | Add 0.00% | 468,572 | $5.61 |
| Q3 2013 | +360,800 | Add 77.00% | 829,372 | $7.05 |
| Q4 2013 | +1.4 M | Add 168.90% | 2.23 M | $8.85 |
| Q1 2014 | -706,800 | Reduce 31.69% | 1.52 M | $10.34 |
| Q2 2014 | -1.52 M | Sold Out | 1.52 M | $0.00 |
| Q4 2014 | +1.08 M | New Buy | 1.08 M | $13.76 |
| Q1 2015 | -800,000 | Reduce 74.25% | 277,372 | $15.59 |
| Q2 2015 | -169,772 | Reduce 61.21% | 107,600 | $19.99 |
| Q3 2015 | +438,972 | Add 407.97% | 546,572 | $21.46 |
| Q4 2015 | +2.23 M | Add 407.85% | 2.78 M | $20.48 |
| Q1 2016 | +496,000 | Add 17.87% | 3.27 M | $16.98 |
| Q2 2016 | -1.9 M | Reduce 58.21% | 1.37 M | $19.83 |
| Q3 2016 | -1.37 M | Sold Out | 1.37 M | $0.00 |
| Q4 2016 | +550,572 | New Buy | 550,572 | $14.92 |
| Q1 2017 | +630,000 | Add 114.43% | 1.18 M | $21.18 |
| Q2 2017 | -1.18 M | Sold Out | 1.18 M | $0.00 |
| Q1 2018 | +643,772 | New Buy | 643,772 | $18.54 |
| Q2 2018 | +920,800 | Add 143.03% | 1.56 M | $23.75 |
| Q3 2018 | +767,664 | Add 49.07% | 2.33 M | $35.76 |
| Q4 2018 | +1.57 M | Add 67.15% | 3.9 M | $29.95 |
| Q1 2019 | +1.15 M | Add 29.51% | 5.05 M | $29.78 |
| Q2 2019 | -3.84 M | Reduce 76.16% | 1.2 M | $37.46 |
| Q3 2019 | -982,172 | Reduce 81.59% | 221,600 | $37.31 |
| Q4 2019 | +2.58 M | Add 1163.98% | 2.8 M | $54.68 |
| Q1 2020 | +996,344 | Add 35.57% | 3.8 M | $67.32 |
| Q2 2020 | +934,988 | Add 24.62% | 4.73 M | $101.35 |
| Q3 2020 | -1.8 M | Reduce 38.13% | 2.93 M | $103.06 |
| Q4 2020 | -1.79 M | Reduce 61.06% | 1.14 M | $92.43 |
| Q1 2021 | -563,864 | Reduce 49.46% | 576,172 | $89.85 |
| Q2 2021 | -576,172 | Sold Out | 576,172 | $0.00 |
| Q4 2021 | +559,772 | New Buy | 559,772 | $134.24 |
| Q1 2022 | -466,972 | Reduce 83.42% | 92,800 | $127.90 |
| Q2 2022 | +801,772 | Add 863.98% | 894,572 | $74.53 |
| Q3 2022 | -888,672 | Reduce 99.34% | 5,900 | $80.51 |
| Q4 2022 | +71,400 | Add 1210.17% | 77,300 | $0.11 |
| Q1 2023 | +212,900 | Add 275.42% | 290,200 | $0.12 |
| Q2 2023 | -121,600 | Reduce 41.90% | 168,600 | $0.13 |
| Q3 2023 | -168,600 | Sold Out | 168,600 | $0.00 |
| Q4 2023 | +2,700 | New Buy | 2,700 | $124.07 |
| Q1 2024 | +844,972 | Add 31295.26% | 847,672 | $138.70 |
| Q2 2024 | -385,100 | Reduce 45.43% | 462,572 | $113.38 |
| Q3 2024 | +368,400 | Add 79.64% | 830,972 | $67.04 |
| Q4 2024 | +58,902 | Add 7.09% | 889,874 | $77.77 |
| Q1 2025 | -259,100 | Reduce 29.12% | 630,774 | $68.29 |
| Q2 2025 | +67,028 | Add 10.63% | 697,802 | $87.29 |
| Q3 2025 | +143,762 | Add 20.60% | 841,564 | $67.29 |
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 50 quarters since Q2 2013. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies's largest addition to DexCom, Inc. (DXCM) was in Q4 2019, adding 2,800,972 shares worth $153.17 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
According to the latest 13F filing for Q3 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 841,564 shares of DexCom, Inc. (DXCM), valued at approximately $56.63 M. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
As of the Q3 2025 filing, DexCom, Inc. (DXCM) represents approximately 0.07% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies's peak holding in DexCom, Inc. (DXCM) was 5,048,564 shares, as reported at the end of Q1 2019. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.