SITIME Corp
Ticker: SITMTechnologySemiconductorsThe business
SiTime Corporation (NASDAQ: TMTS) is a leading provider of Precision Timing solutions to the global electronics industry. The company designs and manufactures semiconductor-based timing products that serve as the heartbeat of electronic systems, providing the clock signals and synchronization functionality required for reliable and accurate operation across diverse applications. SiTime's product portfolio encompasses oscillators, clock integrated circuits, resonators, and synchronization software, with over 40,000 unique part numbers shipped as of December 31, 2025.
The company operates a fabless business model, outsourcing manufacturing to third-party foundries including Bosch, TSMC, and UMC, while maintaining in-house expertise in MEMS design, analog mixed-signal circuit development, advanced system-level integration, and software. This approach provides production flexibility and allows SiTime to focus on design, marketing, and sales. The company's all-silicon solutions are based on four fundamental technical areas: micro-electro-mechanical systems, analog mixed-signal design, advanced system-level integration, and software.
SiTime's Precision Timing solutions address applications across communications, datacenter, enterprise, automotive, industrial, aerospace, defense, mobile, Internet of Things, and consumer markets. The company believes the total timing market is approximately eleven billion dollars in size and growing. Products have been designed into over four hundred applications. The company sells primarily through distributors, with major distributor customers including Arrow Electronics and Pernas Electronics, though the majority of Pernas sales are ultimately incorporated into products of Apple Inc., SiTime's largest end customer.
In December 2023, SiTime acquired clocking products and intellectual property from Aura Semiconductor, significantly expanding its presence in the clock IC market. In June 2025, the company launched TimeFabric Software suite for IEEE 1588 standards-compliant synchronization. In September 2025, SiTime announced the Titan Platform for standalone resonators. Most recently, in February 2026, the company entered into an agreement to acquire Renesas Electronics' timing business for approximately 1.5 billion dollars in cash and stock consideration. The company maintains research and development operations across the United States, Netherlands, Malaysia, Finland, Japan, Taiwan, Ukraine, and India.
- Sector
- Technology
- Industry
- Semiconductors
- HQ
- SANTA CLARA, CA
- FY end
- 12-31
- CIK
- 1451809
- SIC
- 3674
Ownership
Who holds SITIME Corp — across funds, superinvestors and bonds · N-PORT 2026Q2 · 13F 2026-06-30
Top fund holders
| Fund | % of fund | Value |
|---|---|---|
| Fidelity Growth Company Fund FDGRX · Fidelity Mt. Vernon Street Trust | 0.67% | $660.71M |
| iShares Core S&P Mid-Cap ETF IJH · iShares Trust | 0.45% | $565.70M |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VTI · VANGUARD INDEX FUNDS | 0.02% | $530.77M |
| VANGUARD SMALL-CAP INDEX FUND VB · VANGUARD INDEX FUNDS | 0.20% | $383.57M |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VGT · VANGUARD WORLD FUND | 0.13% | $226.07M |
Superinvestors in SITIME Corp
Share of each manager's reported 13F portfolio.
Bonds held by funds
Funds report holding 1 issues of SITIME Corp's debt, $38.31M at fund-held market value — what funds hold, not the company's debt outstanding.
| Issue | Coupon | Matures | Funds | Fund-held |
|---|---|---|---|---|
| SiTime Corp | 0.000%None | 2031-06-15 | 24 | $38.31M |
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Fund ownership is a subset of institutional 13F ownership — the two describe overlapping populations and must not be added together.
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