Who owns ECG (ECG)
Which tracked institutional funds hold ECG, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ECG company fundamentals →
Ownership as of the 2026-Q1 13F filings. 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 ECG is one-sided between 2025-Q4 and 2026-Q1: 207 added or opened and 66 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
ECG’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes ECG more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ECG 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 2025-Q4 and 2026-Q1, across 486 tracked filers holding ECG, 236 increased or opened the position and 195 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 ECG between the 2025-Q4 and 2026-Q1 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 31
- VANGUARD PORTFOLIO MANAGEMENT LLC$305M
- VANGUARD CAPITAL MANAGEMENT LLC$270M
- FULLER & THALER ASSET MANAGEMENT, INC.$91M
- Forest Avenue Capital Management LP$84M
- Capital World Investors$73M
- MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.$48M
Full exits 28
- VANGUARD GROUP INC$437M
- MANAGED ASSET PORTFOLIOS, LLC$13M
- Nixon Capital, LLC$9M
- ExodusPoint Capital Management, LP$8M
- Walleye Capital LLC$7M
- NEUMEIER POMA INVESTMENT COUNSEL LLC$7M
Largest adds
- WASATCH ADVISORS LP$171M
- BlackRock, Inc.$138M
- FIRST TRUST ADVISORS LP$99M
- STATE STREET CORP$56M
- D. E. Shaw & Co., Inc.$46M
- GEODE CAPITAL MANAGEMENT, LLC$40M
Largest trims
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$277M
- BARROW HANLEY MEWHINNEY & STRAUSS LLC$114M
- Capital International Investors$34M
- VICTORY CAPITAL MANAGEMENT INC$23M
- CITADEL ADVISORS LLC$18M
- ALLIANCEBERNSTEIN L.P.$14M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 5,580,462 | $659M | 12.9% | 2026-Q1 |
| WASATCH ADVISORS LP added | 3,017,249 | $356M | 7.0% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,581,565 | $305M | 6.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,290,925 | $270M | 5.3% | 2026-Q1 |
| STATE STREET CORP added | 1,617,328 | $191M | 3.7% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 1,280,916 | $151M | 3.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,175,690 | $139M | 2.7% | 2026-Q1 |
| Capital International Investors trimmed | 1,114,611 | $132M | 2.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,105,056 | $130M | 2.5% | 2026-Q1 |
| EARNEST PARTNERS LLC trimmed | 961,183 | $113M | 2.2% | 2026-Q1 |
| Invesco Ltd. trimmed | 909,698 | $107M | 2.1% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. new | 771,811 | $91M | 1.8% | 2026-Q1 |
| Forest Avenue Capital Management LP new | 715,285 | $84M | 1.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 665,286 | $79M | 1.5% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC trimmed | 636,007 | $75M | 1.5% | 2026-Q1 |
| Capital World Investors new | 614,312 | $73M | 1.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 565,489 | $67M | 1.3% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 546,218 | $64M | 1.3% | 2026-Q1 |
| Driehaus Capital Management LLC trimmed | 515,769 | $61M | 1.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 676,599 | $58M | 1.1% | 2026-Q1 |
| LOOMIS SAYLES & CO L P trimmed | 430,548 | $51M | 1.0% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 421,706 | $50M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 410,321 | $48M | 0.9% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 405,419 | $48M | 0.9% | 2026-Q1 |
| US BANCORP \DE\ trimmed | 392,410 | $46M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 376,089 | $44M | 0.9% | 2026-Q1 |
| De Lisle Partners LLP | 367,430 | $43M | 0.8% | 2026-Q1 |
| NORGES BANK added | 1,096,560 | $41M | 0.8% | 2026-Q1 |
| OBERWEIS ASSET MANAGEMENT INC/ added | 326,533 | $39M | 0.8% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 317,240 | $37M | 0.7% | 2026-Q1 |
| Swedbank AB trimmed | 300,000 | $35M | 0.7% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 275,866 | $33M | 0.6% | 2026-Q1 |
| UBS Group AG trimmed | 271,360 | $32M | 0.6% | 2026-Q1 |
| TEACHER RETIREMENT SYSTEM OF TEXAS added | 265,904 | $31M | 0.6% | 2026-Q1 |
| Aberdeen Group plc added | 257,708 | $30M | 0.6% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 247,160 | $29M | 0.6% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 231,486 | $26M | 0.5% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 201,327 | $24M | 0.5% | 2026-Q1 |
| CLEARFIELD CAPITAL MANAGEMENT LP | 197,700 | $23M | 0.5% | 2026-Q1 |
| Nuveen, LLC trimmed | 195,553 | $23M | 0.5% | 2026-Q1 |
| Handelsbanken Fonder AB trimmed | 189,000 | $22M | 0.4% | 2026-Q1 |
| Public Sector Pension Investment Board added | 182,503 | $22M | 0.4% | 2026-Q1 |
| SEI INVESTMENTS CO added | 181,374 | $21M | 0.4% | 2026-Q1 |
| Gotham Asset Management, LLC added | 169,973 | $20M | 0.4% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 169,792 | $20M | 0.4% | 2026-Q1 |
| Baird Financial Group, Inc. trimmed | 154,159 | $18M | 0.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 148,400 | $18M | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 144,724 | $17M | 0.3% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC trimmed | 143,499 | $17M | 0.3% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 136,144 | $16M | 0.3% | 2026-Q1 |
| BARCLAYS PLC added | 132,868 | $16M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 127,310 | $15M | 0.3% | 2026-Q1 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 126,500 | $15M | 0.3% | 2026-Q1 |
| KINGDON CAPITAL MANAGEMENT, L.L.C. trimmed | 125,000 | $15M | 0.3% | 2026-Q1 |
| LONE PEAK GLOBAL INVESTORS LLC trimmed | 123,336 | $15M | 0.3% | 2026-Q1 |
| WINTON GROUP Ltd added | 121,069 | $14M | 0.3% | 2026-Q1 |
| Legal & General Group Plc trimmed | 117,333 | $14M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 116,487 | $14M | 0.3% | 2026-Q1 |
| Amundi added | 116,081 | $14M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 115,915 | $14M | 0.3% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 114,800 | $14M | 0.3% | 2026-Q1 |
| Select Equity Group, L.P. trimmed | 113,906 | $13M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 111,684 | $13M | 0.3% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 109,759 | $13M | 0.3% | 2026-Q1 |
| Ancora Advisors LLC trimmed | 96,482 | $11M | 0.2% | 2026-Q1 |
| Swiss National Bank | 95,597 | $11M | 0.2% | 2026-Q1 |
| Granite Investment Partners, LLC trimmed | 88,319 | $10M | 0.2% | 2026-Q1 |
| Arosa Capital Management LP added | 88,000 | $10M | 0.2% | 2026-Q1 |
| ALGERT GLOBAL LLC trimmed | 84,786 | $10M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 84,379 | $10M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 79,947 | $9M | 0.2% | 2026-Q1 |
| Creative Planning added | 79,828 | $9M | 0.2% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 77,011 | $9M | 0.2% | 2026-Q1 |
| Hudson Value Partners, LLC trimmed | 76,815 | $9M | 0.2% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 73,316 | $9M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL trimmed | 72,563 | $9M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 72,199 | $9M | 0.2% | 2026-Q1 |
| JOHN G ULLMAN & ASSOCIATES INC trimmed | 67,874 | $8M | 0.2% | 2026-Q1 |
| Angeles Investment Advisors, LLC | 64,581 | $8M | 0.1% | 2026-Q1 |
| FRED ALGER MANAGEMENT, LLC trimmed | 63,893 | $8M | 0.1% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 61,738 | $7M | 0.1% | 2026-Q1 |
| Aventail Capital Group, LP added | 61,421 | $7M | 0.1% | 2026-Q1 |
| BESSEMER GROUP INC added | 61,312 | $7M | 0.1% | 2026-Q1 |
| OPPENHEIMER ASSET MANAGEMENT INC. added | 61,194 | $7M | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 59,430 | $7M | 0.1% | 2026-Q1 |
| Trexquant Investment LP trimmed | 59,272 | $7M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 57,084 | $7M | 0.1% | 2026-Q1 |
| KORNITZER CAPITAL MANAGEMENT INC /KS | 55,685 | $7M | 0.1% | 2026-Q1 |
| WORLDQUANT MILLENNIUM ADVISORS LLC added | 54,812 | $6M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 5,105,043 | $437M | 8.5% | 2025-Q4 stale |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 396,463 | $25M | 0.5% | 2025-Q2 stale |
| HENNESSY ADVISORS INC trimmed | 394,375 | $25M | 0.5% | 2025-Q2 stale |
| Merewether Investment Management, LP new | 289,700 | $25M | 0.5% | 2025-Q3 stale |
| Mountaineer Partners Management, LLC trimmed | 169,844 | $15M | 0.3% | 2025-Q3 stale |
| MANAGED ASSET PORTFOLIOS, LLC trimmed | 149,465 | $13M | 0.2% | 2025-Q4 stale |
| Nixon Capital, LLC trimmed | 108,866 | $9M | 0.2% | 2025-Q4 stale |
| ExodusPoint Capital Management, LP added | 91,317 | $8M | 0.2% | 2025-Q4 stale |
| Rudius Management LP new | 202,759 | $8M | 0.1% | 2025-Q1 stale |
| Walleye Capital LLC added | 83,260 | $7M | 0.1% | 2025-Q4 stale |
| NEUMEIER POMA INVESTMENT COUNSEL LLC trimmed | 78,744 | $7M | 0.1% | 2025-Q4 stale |
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.