Who owns SiTime (SITM)
Which tracked institutional funds hold SITM, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See SITM company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
SITM’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in SITM divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, we do not read how tracked institutions changed their SITM positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. Over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| FMR LLC added | 3,969,485 | $3.0B | 19.8% | 2026-Q2 |
| BlackRock, Inc. trimmed | 2,390,065 | $1.8B | 11.9% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 1,212,152 | $904M | 6.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,008,016 | $752M | 5.0% | 2026-Q2 |
| STATE STREET CORP trimmed | 804,710 | $600M | 4.0% | 2026-Q2 |
| Whale Rock Capital Management LLC trimmed | 560,701 | $418M | 2.8% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 544,348 | $407M | 2.7% | 2026-Q2 |
| Artisan Partners Limited Partnership added | 485,123 | $362M | 2.4% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 422,599 | $315M | 2.1% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 412,170 | $307M | 2.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 355,910 | $254M | 1.7% | 2026-Q2 |
| Invesco Ltd. trimmed | 344,373 | $257M | 1.7% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 335,059 | $116M | 0.8% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 322,565 | $240M | 1.6% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 309,795 | $231M | 1.5% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 259,453 | $193M | 1.3% | 2026-Q2 |
| GILDER GAGNON HOWE & CO LLC trimmed | 240,532 | $179M | 1.2% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 236,078 | $176M | 1.2% | 2026-Q2 |
| NORGES BANK added | 200,038 | $149M | 1.0% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 196,112 | $146M | 1.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 194,353 | $145M | 1.0% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 191,248 | $143M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 190,888 | $142M | 1.0% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 183,771 | $137M | 0.9% | 2026-Q2 |
| Driehaus Capital Management LLC trimmed | 172,133 | $128M | 0.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 168,975 | $126M | 0.8% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 165,330 | $123M | 0.8% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 162,910 | $121M | 0.8% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 161,780 | $121M | 0.8% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 154,166 | $115M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 143,409 | $107M | 0.7% | 2026-Q2 |
| UBS Group AG trimmed | 141,584 | $106M | 0.7% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 133,984 | $100M | 0.7% | 2026-Q2 |
| Hood River Capital Management LLC trimmed | 133,699 | $100M | 0.7% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 128,495 | $96M | 0.6% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 124,890 | $93M | 0.6% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC added | 120,822 | $90M | 0.6% | 2026-Q2 |
| OBERWEIS ASSET MANAGEMENT INC/ added | 119,501 | $89M | 0.6% | 2026-Q2 |
| SEI INVESTMENTS CO added | 108,284 | $81M | 0.5% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC added | 106,404 | $79M | 0.5% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 106,077 | $79M | 0.5% | 2026-Q2 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC trimmed | 102,958 | $77M | 0.5% | 2026-Q2 |
| Stephens Investment Management Group LLC added | 94,484 | $70M | 0.5% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 87,778 | $65M | 0.4% | 2026-Q2 |
| BROWN ADVISORY INC trimmed | 86,802 | $65M | 0.4% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 81,120 | $60M | 0.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 74,411 | $55M | 0.4% | 2026-Q2 |
| EVENTIDE ASSET MANAGEMENT, LLC added | 74,014 | $55M | 0.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 72,869 | $54M | 0.4% | 2026-Q2 |
| BAMCO INC /NY/ trimmed | 70,204 | $52M | 0.4% | 2026-Q2 |
| TimesSquare Capital Management, LLC trimmed | 64,642 | $48M | 0.3% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 62,442 | $47M | 0.3% | 2026-Q2 |
| Polar Capital Holdings Plc added | 61,388 | $46M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 59,500 | $44M | 0.3% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 57,835 | $43M | 0.3% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC added | 56,301 | $40M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 51,949 | $39M | 0.3% | 2026-Q2 |
| WESTFIELD CAPITAL MANAGEMENT CO LP new | 49,998 | $37M | 0.2% | 2026-Q2 |
| FengHe Fund Management Pte. Ltd. trimmed | 48,690 | $36M | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ trimmed | 46,124 | $34M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 43,560 | $32M | 0.2% | 2026-Q2 |
| Nuveen, LLC trimmed | 43,505 | $32M | 0.2% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 42,601 | $32M | 0.2% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 40,371 | $30M | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 40,309 | $30M | 0.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 40,305 | $29M | 0.2% | 2026-Q2 |
| Champlain Investment Partners, LLC added | 39,433 | $29M | 0.2% | 2026-Q2 |
| JENNISON ASSOCIATES LLC trimmed | 39,343 | $29M | 0.2% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 38,902 | $29M | 0.2% | 2026-Q2 |
| Clearbridge Investments, LLC new | 38,532 | $29M | 0.2% | 2026-Q2 |
| ROYCE & ASSOCIATES LP | 35,670 | $27M | 0.2% | 2026-Q2 |
| TD Asset Management Inc added | 33,802 | $25M | 0.2% | 2026-Q2 |
| Aperture Investors, LLC trimmed | 33,746 | $25M | 0.2% | 2026-Q2 |
| Legal & General Group Plc added | 30,442 | $23M | 0.2% | 2026-Q2 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 30,408 | $23M | 0.2% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 30,300 | $23M | 0.2% | 2026-Q2 |
| Holocene Advisors, LP new | 29,855 | $22M | 0.1% | 2026-Q2 |
| BARCLAYS PLC added | 29,764 | $22M | 0.1% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC added | 28,965 | $22M | 0.1% | 2026-Q2 |
| Rivermont Capital Management LP new | 28,191 | $21M | 0.1% | 2026-Q2 |
| Man Group plc trimmed | 28,049 | $21M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 27,956 | $21M | 0.1% | 2026-Q2 |
| Retirement Systems of Alabama added | 27,934 | $21M | 0.1% | 2026-Q2 |
| Science & Technology Partners, L.P. added | 27,925 | $21M | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 27,812 | $21M | 0.1% | 2026-Q2 |
| Nicholas Investment Partners, LP added | 27,562 | $21M | 0.1% | 2026-Q2 |
| WCM INVESTMENT MANAGEMENT, LLC new | 27,207 | $19M | 0.1% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 26,840 | $20M | 0.1% | 2026-Q2 |
| Swedbank AB trimmed | 26,710 | $20M | 0.1% | 2026-Q2 |
| Jain Global LLC added | 26,670 | $20M | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 25,457 | $19M | 0.1% | 2026-Q2 |
| CREDIT AGRICOLE S A trimmed | 25,285 | $19M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 25,188 | $19M | 0.1% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 24,017 | $18M | 0.1% | 2026-Q2 |
| NEXT CENTURY GROWTH INVESTORS LLC trimmed | 23,825 | $18M | 0.1% | 2026-Q2 |
| ARISTEIA CAPITAL, L.L.C. new | 22,910 | $17M | 0.1% | 2026-Q2 |
| Daiwa Securities Group Inc. trimmed | 22,841 | $17M | 0.1% | 2026-Q2 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 22,562 | $17M | 0.1% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 21,264 | $16M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 20,947 | $16M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.