Who owns IMOS
Which tracked institutional funds hold IMOS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IMOS company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-08-14). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on IMOS is one-sided between 2026-Q1 and 2026-Q2: 30 added or opened and 3 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
IMOS’s largest tracked holder by dollar value, RENAISSANCE TECHNOLOGIES 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 IMOS 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, across 84 tracked filers holding IMOS, 58 increased or opened the position and 31 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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
Funds opening or closing a position in IMOS between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 5
- XY Capital Ltd$8M
- Qube Research & Technologies Ltd$2M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$1M
- RITHOLTZ WEALTH MANAGEMENT$575K
- TD Waterhouse Canada Inc.$517K
Full exits 2
- ACADIAN ASSET MANAGEMENT LLC$8M
- Parvin Asset Management, LLC$779K
Largest adds
- RENAISSANCE TECHNOLOGIES LLC$31M
- O'SHAUGHNESSY ASSET MANAGEMENT, LLC$8M
- BlackRock, Inc.$7M
- JANE STREET GROUP, LLC$3M
- DIMENSIONAL FUND ADVISORS LP$2M
- Vanguard Personalized Indexing Management, LLC$2M
Largest trims
- Quadrature Capital Ltd$406K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,105,890 | $71M | 41.0% | 2026-Q2 |
| BlackRock, Inc. added | 255,464 | $16M | 9.5% | 2026-Q2 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 172,425 | $11M | 6.4% | 2026-Q2 |
| XY Capital Ltd added | 130,326 | $8M | 4.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 88,685 | $6M | 3.3% | 2026-Q2 |
| Vanguard Personalized Indexing Management, LLC added | 72,464 | $5M | 2.7% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 53,138 | $3M | 2.0% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 52,853 | $3M | 2.0% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 50,810 | $3M | 1.9% | 2026-Q2 |
| Creative Planning added | 49,378 | $3M | 1.8% | 2026-Q2 |
| MARSHALL WACE, LLP added | 34,423 | $2M | 1.3% | 2026-Q2 |
| RENAISSANCE GROUP LLC trimmed | 34,140 | $2M | 1.3% | 2026-Q2 |
| Qube Research & Technologies Ltd new | 32,641 | $2M | 1.2% | 2026-Q2 |
| Caprock Group, LLC added | 30,909 | $2M | 1.2% | 2026-Q2 |
| Ballentine Partners, LLC added | 26,847 | $2M | 1.0% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 25,707 | $2M | 1.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP new | 20,814 | $1M | 0.8% | 2026-Q2 |
| SIGNATUREFD, LLC trimmed | 20,711 | $1M | 0.8% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 21,887 | $1M | 0.7% | 2026-Q2 |
| XTX Topco Ltd added | 19,773 | $1M | 0.7% | 2026-Q2 |
| LVW Advisors, LLC added | 18,898 | $1M | 0.7% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 17,647 | $1M | 0.7% | 2026-Q2 |
| Trexquant Investment LP added | 16,441 | $1M | 0.6% | 2026-Q2 |
| Kathmere Capital Management, LLC added | 13,395 | $861K | 0.5% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 12,777 | $821K | 0.5% | 2026-Q2 |
| LPL Financial LLC trimmed | 12,747 | $819K | 0.5% | 2026-Q2 |
| QUADRANT CAPITAL GROUP LLC trimmed | 12,071 | $776K | 0.4% | 2026-Q2 |
| RITHOLTZ WEALTH MANAGEMENT trimmed | 8,949 | $575K | 0.3% | 2026-Q2 |
| TD Waterhouse Canada Inc. new | 7,977 | $517K | 0.3% | 2026-Q2 |
| MORGAN STANLEY added | 7,970 | $512K | 0.3% | 2026-Q2 |
| Vident Advisory, LLC trimmed | 7,612 | $489K | 0.3% | 2026-Q2 |
| Mariner, LLC new | 7,145 | $459K | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 6,764 | $435K | 0.3% | 2026-Q2 |
| Parallel Advisors, LLC added | 6,544 | $420K | 0.2% | 2026-Q2 |
| Engineers Gate Manager LP new | 5,800 | $373K | 0.2% | 2026-Q2 |
| Foster Group, Inc. new | 5,269 | $339K | 0.2% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 5,138 | $330K | 0.2% | 2026-Q2 |
| Quadrature Capital Ltd trimmed | 4,776 | $307K | 0.2% | 2026-Q2 |
| &PARTNERS new | 4,519 | $290K | 0.2% | 2026-Q2 |
| Quantinno Capital Management LP new | 4,184 | $269K | 0.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 4,160 | $267K | 0.2% | 2026-Q2 |
| HSBC HOLDINGS PLC new | 4,197 | $267K | 0.2% | 2026-Q2 |
| Arax Advisory Partners added | 4,082 | $262K | 0.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC new | 3,698 | $238K | 0.1% | 2026-Q2 |
| EVERGREEN CAPITAL MANAGEMENT LLC new | 3,617 | $235K | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC new | 3,655 | $235K | 0.1% | 2026-Q2 |
| GAMMA Investing LLC added | 3,363 | $216K | 0.1% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ new | 3,344 | $215K | 0.1% | 2026-Q2 |
| Ascent Group, LLC new | 3,260 | $209K | 0.1% | 2026-Q2 |
| SmartHarvest Portfolios, LLC new | 3,115 | $200K | 0.1% | 2026-Q2 |
| Westside Investment Management, Inc. | 2,163 | $139K | 0.1% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 1,654 | $106K | 0.1% | 2026-Q2 |
| Smartleaf Asset Management LLC | 1,774 | $103K | 0.1% | 2026-Q2 |
| Allworth Financial LP trimmed | 1,574 | $101K | 0.1% | 2026-Q2 |
| US BANCORP \DE\ added | 940 | $60K | 0.0% | 2026-Q2 |
| Global Retirement Partners, LLC trimmed | 934 | $60K | 0.0% | 2026-Q2 |
| Bell Investment Advisors, Inc | 653 | $42K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 623 | $40K | 0.0% | 2026-Q2 |
| ASSETMARK, INC added | 605 | $39K | 0.0% | 2026-Q2 |
| UBS Group AG added | 568 | $36K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 550 | $35K | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC added | 522 | $34K | 0.0% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 428 | $27K | 0.0% | 2026-Q2 |
| NewEdge Advisors, LLC added | 424 | $27K | 0.0% | 2026-Q2 |
| Physician Wealth Advisors, Inc. trimmed | 369 | $24K | 0.0% | 2026-Q2 |
| Integrated Wealth Concepts LLC new | 270 | $17K | 0.0% | 2026-Q2 |
| Federation des caisses Desjardins du Quebec | 264 | $17K | 0.0% | 2026-Q2 |
| GROUP ONE TRADING LLC new | 248 | $16K | 0.0% | 2026-Q2 |
| Larson Financial Group LLC | 192 | $12K | 0.0% | 2026-Q2 |
| AdvisorNet Financial, Inc | 150 | $10K | 0.0% | 2026-Q2 |
| Crewe Advisors LLC | 113 | $7K | 0.0% | 2026-Q2 |
| Cornerstone Financial Management LLC added | 109 | $7K | 0.0% | 2026-Q2 |
| FIDUCIARY FINANCIAL ADVISORS new | 78 | $5K | 0.0% | 2026-Q2 |
| PRIVATE TRUST CO NA trimmed | 77 | $5K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 66 | $4K | 0.0% | 2026-Q2 |
| Winch Advisory Services, LLC | 60 | $4K | 0.0% | 2026-Q2 |
| Dogwood Wealth Management LLC | 51 | $3K | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. added | 43 | $3K | 0.0% | 2026-Q2 |
| Moisand Fitzgerald Tamayo, LLC | 39 | $3K | 0.0% | 2026-Q2 |
| Silver Grove Financial Group, Inc. new | 30 | $2K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 21 | $1K | 0.0% | 2026-Q2 |
| IFP Advisors, Inc | 15 | $964 | 0.0% | 2026-Q2 |
| Caitong International Asset Management Co., Ltd new | 1 | $64 | 0.0% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 1 | $62 | 0.0% | 2026-Q2 |
| ACADIAN ASSET MANAGEMENT LLC trimmed | 225,521 | $8M | 4.6% | 2026-Q1 stale (1 quarter behind) |
| Parvin Asset Management, LLC trimmed | 21,770 | $779K | 0.4% | 2026-Q1 stale (1 quarter behind) |
| MILLENNIUM MANAGEMENT LLC new | 10,729 | $384K | 0.2% | 2026-Q1 stale (1 quarter behind) |
| DELPHI MANAGEMENT INC /MA/ new | 7,110 | $254K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| LSV ASSET MANAGEMENT | 5,600 | $200K | 0.1% | 2026-Q1 stale (1 quarter behind) |
| JNBA Financial Advisors trimmed | 750 | $27K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| BESSEMER GROUP INC | 279 | $10K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| CWM, LLC added | 220 | $8K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Coston, McIsaac & Partners | 217 | $7K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| Intentional Wealth Strategies, LLC new | 158 | $6K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| MAI Capital Management trimmed | 112 | $4K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO new | 108 | $4K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| HUNTINGTON NATIONAL BANK new | 59 | $2K | 0.0% | 2026-Q1 stale (1 quarter behind) |
| RBF Capital, LLC new | 8,965 | $266K | 0.2% | 2025-Q4 stale (2 quarters behind) |
| ABC ARBITRAGE SA trimmed | 15,185 | $290K | 0.2% | 2025-Q3 stale (3 quarters behind) |
| RAYMOND JAMES FINANCIAL INC new | 1,274 | $23K | 0.0% | 2025-Q2 stale (4 quarters behind) |
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.