Paul Tudor Jones's MASI Position Overview
Paul Tudor Jones (via Tudor Investment Corp Et Al) currently holds 16,242 shares of Masimo Corporation (MASI) worth $2.11 M, representing 0.00% of the portfolio. First purchased in 2013-Q4, this long-term strategic position has been held for 30 quarters.
Based on 13F filings, Paul Tudor Jones has maintained a strategic position in MASI, demonstrating sustained confidence in this investment. Largest addition occurred in Q2 2018, adding 38,926 shares. Largest reduction occurred in Q4 2018, reducing 45,825 shares.
Analysis based on 13F filings available since 2013 Q2
Paul Tudor Jones's Masimo Corporation (MASI) Holding Value Over Time
Track share changes against reported price movement
Quarterly Masimo Corporation (MASI) Trades by Paul Tudor Jones
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q4 2025 | -15,399 | Reduce 48.67% | 16,242 | $130.06 |
| Q3 2025 | +31,641 | New Buy | 31,641 | $147.55 |
| Q4 2024 | -1,965 | Sold Out | 0 | $0.00 |
| Q3 2024 | -14,370 | Reduce 87.97% | 1,965 | $133.33 |
| Q2 2024 | +16,335 | New Buy | 16,335 | $125.94 |
| Q3 2022 | -1,529 | Sold Out | 0 | $0.00 |
| Q2 2022 | -11,844 | Reduce 88.57% | 1,529 | $130.80 |
| Q1 2022 | +13,373 | New Buy | 13,373 | $145.52 |
| Q2 2021 | -11,958 | Sold Out | 0 | $0.00 |
| Q1 2021 | +11,958 | New Buy | 11,958 | $229.64 |
| Q1 2019 | -3,413 | Sold Out | 0 | $0.00 |
| Q4 2018 | -45,825 | Reduce 93.07% | 3,413 | $107.24 |
| Q3 2018 | +7,041 | Add 16.69% | 49,238 | $124.54 |
| Q2 2018 | +38,926 | Add 1190.03% | 42,197 | $97.66 |
| Q1 2018 | +3,271 | New Buy | 3,271 | $88.05 |
| Q3 2017 | -4,771 | Sold Out | 0 | $0.00 |
| Q2 2017 | +1,471 | Add 44.58% | 4,771 | $91.18 |
| Q1 2017 | -1,562 | Reduce 32.13% | 3,300 | $93.33 |
| Q4 2016 | -8,120 | Reduce 62.55% | 4,862 | $67.46 |
| Q3 2016 | -482 | Reduce 3.58% | 12,982 | $59.47 |
| Q2 2016 | +802 | Add 6.33% | 13,464 | $52.51 |
| Q1 2016 | +362 | Add 2.94% | 12,662 | $41.86 |
| Q4 2015 | +3,500 | Add 39.77% | 12,300 | $41.54 |
| Q3 2015 | +8,800 | New Buy | 8,800 | $38.52 |
| Q1 2015 | -22,872 | Sold Out | 0 | $0.00 |
| Q4 2014 | -18,928 | Reduce 45.28% | 22,872 | $26.32 |
| Q3 2014 | +4,800 | Add 12.97% | 41,800 | $21.29 |
| Q2 2014 | +12,500 | Add 51.02% | 37,000 | $23.59 |
| Q1 2014 | +17,100 | Add 231.08% | 24,500 | $27.31 |
| Q4 2013 | +7,400 | New Buy | 7,400 | $29.19 |
Paul Tudor Jones's Masimo Corporation Investment FAQs
Paul Tudor Jones first purchased Masimo Corporation (MASI) in Q4 2013, acquiring 7,400 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Paul Tudor Jones has held Masimo Corporation (MASI) for 30 quarters since Q4 2013.
Paul Tudor Jones's largest addition to Masimo Corporation (MASI) was in Q2 2018, adding 42,197 shares worth $4.12 M.
According to the latest 13F filing for Q4 2025, Paul Tudor Jones's firm, Tudor Investment Corp Et Al, owns 16,242 shares of Masimo Corporation (MASI), valued at approximately $2.11 M.
As of the Q4 2025 filing, Masimo Corporation (MASI) represents approximately 0.00% of Paul Tudor Jones's publicly disclosed stock portfolio, making it one of their key holdings.
Paul Tudor Jones's peak holding in Masimo Corporation (MASI) was 49,238 shares, as reported at the end of Q3 2018.