Who owns SiTime (SITM)?
133 holders named in SEC filings declare between 84.6% and 97.6% of SiTime's shares outstanding, as of Sep 11, 2026. The largest are Fidelity (FMR) (13.2%), Renesas Electronics America Inc. (11.8%) and MEGACHIPS CORP /FI (11.4%); the five largest hold 52.3% together. Another 439 institutions hold small positions worth 3.6%. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 9.3% and sold 11.0% of the shares, a net sale of 1.7%; 167 opened a position, 147 added, 189 reduced and 30 sold out. Biggest buyers: Artisan Partners Limited Partnership (+289,116 shares) and Jane Street (+235,361 shares). Biggest sellers: BlackRock (-490,670) and Ameriprise Financial, Inc. (-207,618). Schedule 13D/G filings since Mar 31, 2026: Renesas Electronics America Inc. crossed 5% (11.8%) on Jul 1, 2026, BlackRock, Inc. cut its stake to 7.3% on Jun 30, 2026 and Vanguard Portfolio Management fell below 5% (4.1% still declared) on Jun 30, 2026. Directors and officers, from their latest Form 4: Rajesh Vashist (1.3%). Over time, 554 managers declared SiTime in their 13F for Q2 2026, against 32 for Q4 2019: together at most 86.0% of the shares outstanding, against 28.2%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| Fidelity (FMR) | 13F | 13.2% | Jun 30, 2026 | Q2 2020 |
| Renesas Electronics America Inc. | 13D | 11.8% | Jul 1, 2026 | — |
| MEGACHIPS CORP /FI | 13G | 11.4% | Dec 31, 2025 | — |
| BlackRock | 13F | 7.9% | Jun 30, 2026 | Q1 2020 |
| Vanguard | 13F | 7.9% | Jun 30, 2026 | Q1 2020 |
| T. Rowe Price | 13F | 3.2% | Jun 30, 2026 | Q4 2020 |
| State Street | 13F | 2.7% | Jun 30, 2026 | Q1 2020 |
| Whale Rock Capital Management LLC | 13F | 1.9% | Jun 30, 2026 | Q2 2025 |
| Geode Capital | 13F | 1.8% | Jun 30, 2026 | Q1 2020 |
| Artisan Partners Limited Partnership | 13F | 1.6% | Jun 30, 2026 | Q1 2026 |
| Franklin Templeton | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Jane Street | 13F | 1.4% | Jun 30, 2026 | Q3 2025 |
| Rajesh Vashist | Form 4 | 1.3% | Sep 9, 2026 | — |
| JPMorgan | 13F | 1.2% | Jun 30, 2026 | Q1 2020 |
| Invesco | 13F | 1.1% | Jun 30, 2026 | Q3 2020 |
| ALLIANCEBERNSTEIN L.P. | 13F | 1.1% | Jun 30, 2026 | Q2 2020 |
| Goldman Sachs | 13F | 1.0% | Jun 30, 2026 | Q2 2020 |
| Ameriprise Financial, Inc. | 13F | 0.86% | Jun 30, 2026 | Q2 2020 |
| GILDER GAGNON HOWE & CO LLC | 13F | 0.80% | Jun 30, 2026 | Q4 2019 or earlier |
| Wellington | 13F | 0.79% | Jun 30, 2026 | Q1 2023 |
| Norges Bank | 13F | 0.67% | Jun 30, 2026 | Q3 2024 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 13F | 0.65% | Jun 30, 2026 | Q2 2025 |
| Morgan Stanley | 13F | 0.65% | Jun 30, 2026 | Q4 2019 or earlier |
| UBS | 13F | 0.64% | Jun 30, 2026 | Q1 2020 |
| RAYMOND JAMES FINANCIAL INC | 13F | 0.64% | Jun 30, 2026 | Q4 2024 |
SiTime institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 32 | 28.2% | $120.0M | 99.9% |
| Q4 2020 | 119 | 54.8% | $1.0B | 69.7% |
| Q4 2021 | 224 | 77.2% | $4.3B | 64.0% |
| Q4 2022 | 200 | 80.2% | $1.7B | 66.4% |
| Q4 2023 | 226 | 82.7% | $2.3B | 58.1% |
| Q4 2024 | 274 | 85.4% | $4.3B | 52.8% |
| Q4 2025 | 387 | 91.5% | $8.4B | 53.4% |
| Q2 2026 | 554 | 86.0% | $16.9B | 60.3% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.