Sitime Corporation
A maker of silicon-based timing chips that replace the quartz crystals found inside nearly every electronic device, keeping clocks and signals in sync across AI data centers, phones, cars, and industrial gear. Founded in 2005 in Santa Clara by researchers Markus Lutz and Aaron Partridge, it builds its oscillators and clock chips from microscopic moving parts etched into silicon, outsourcing manufacturing to foundries like Bosch and TSMC. The name blends "silicon" with "time," and its MEMS timing technology—grown out of work on tiny silicon machines—aims to make electronics more reliable than fragile quartz.
0% Convertible Senior Notes due 2031
Sold 6.98M
Granted 1.30M · Bought 7.7K · Sold 529.0K
Granted 275.5K · Bought 2.3K · Sold 130.3K
Granted 250.0K · Sold 105.7K
Granted 106.5K · Sold 16.5K
Granted 270.6K · Sold 128.4K
Granted 182.5K · Sold 79.8K
Granted 48.3K · Sold 48.6K
Granted 193.7K · Bought 50.0K · Sold 176.4K
Granted 11.0K · Bought 400 · Sold 1.3K
Granted 33.8K · Sold 13.9K
Granted 33.5K · Sold 13.7K
Granted 33.8K · Sold 20.3K
Granted 33.8K · Sold 17.9K
Granted 57.7K · Sold 45.1K
Granted 33.8K · Sold 19.3K
Granted 1.9K
Granted 1.5K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Megachips Corp /Fi10% owner · 9 transactions | — | 3.02M | — | — | 6.98M |
| Vashist RajeshChief Executive Officer, Director · 130 transactions | — | 1.25M | 1.30M | 7.7K | 529.0K |
| Sevalia Piyush BSee Remarks · 113 transactions | — | 68.5K | 275.5K | 2.3K | 130.3K |
| Assaderaghi FariborzSee Remarks · 113 transactions | — | 68.2K | 250.0K | — | 105.7K |
| Howe Elizabeth A.EVP, Chief Financial Officer · 32 transactions | — | 65.1K | 106.5K | — | 16.5K |
| Bonnot LionelSee Remarks · 116 transactions | — | 61.7K | 270.6K | — | 128.4K |
| Pangrazio Vincent PSee Remarks · 86 transactions | — | 48.0K | 182.5K | — | 79.8K |
| Ahamad SamsheerSee Remarks · 38 transactions | — | 46.9K | 48.3K | — | 48.6K |
| Chadwick Arthur DEVP, Chief Financial Officer · 40 transactions | — | 38.9Kas of Aug 2023 | 193.7K | 50.0K | 176.4K |
| Heckart ChristineDirector · 11 transactions | — | 21.1K | 11.0K | 400 | 1.3K |
| Chitkara RamanDirector · 22 transactions | — | 19.9K | 33.8K | — | 13.9K |
| Yiu Tom Dang-HsingDirector · 13 transactions | — | 19.8Kas of Jun 2025 | 33.5K | — | 13.7K |
| Kreindl TorstenDirector · 22 transactions | — | 13.5K | 33.8K | — | 20.3K |
| Frank Edward H.Director · 20 transactions | — | 13.0K | 33.8K | — | 17.9K |
| Takata AkiraDirector · 27 transactions | — | 12.6K | 57.7K | — | 45.1K |
| Schuelke KatherineDirector · 17 transactions | — | 12.5K | 33.8K | — | 19.3K |
| Moorthy GaneshDirector · 3 transactions | — | 1.9K | 1.9K | — | — |
| Aalaei FarajDirector · 3 transactions | — | 1.5K | 1.5K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -8.27M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.