Who owns ESE (ESE)
Which tracked institutional funds hold ESE, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ESE 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 ESE is one-sided between 2025-Q4 and 2026-Q1: 213 added or opened and 51 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
ESE’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 ESE more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ESE 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 433 tracked filers holding ESE, 234 increased or opened the position and 198 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 ESE 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$433M
- VANGUARD CAPITAL MANAGEMENT LLC$327M
- WASATCH ADVISORS LP$81M
- Capital International Investors$56M
- Two Creeks Capital Management, LP$51M
- VANGUARD FIDUCIARY TRUST CO$51M
Full exits 21
- VANGUARD GROUP INC$555M
- WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC$19M
- COMERICA BANK$15M
- ExodusPoint Capital Management, LP$8M
- Walleye Capital LLC$8M
- RENAISSANCE TECHNOLOGIES LLC$7M
Largest adds
- BlackRock, Inc.$221M
- Invesco Ltd.$142M
- STATE STREET CORP$95M
- T. Rowe Price Investment Management, Inc.$77M
- GEODE CAPITAL MANAGEMENT, LLC$54M
- DIMENSIONAL FUND ADVISORS LP$43M
Largest trims
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$149M
- WELLINGTON MANAGEMENT GROUP LLP$16M
- SCHRODER INVESTMENT MANAGEMENT GROUP$16M
- TUDOR INVESTMENT CORP ET AL$10M
- F/m Investments LLC$6M
- FORT WASHINGTON INVESTMENT ADVISORS INC /OH/$5M
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 | 3,498,491 | $984M | 13.8% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,540,064 | $433M | 6.1% | 2026-Q1 |
| Invesco Ltd. added | 1,234,235 | $347M | 4.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,161,744 | $327M | 4.6% | 2026-Q1 |
| STATE STREET CORP added | 1,036,832 | $292M | 4.1% | 2026-Q1 |
| Capital World Investors trimmed | 750,112 | $211M | 3.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 636,505 | $179M | 2.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 633,219 | $178M | 2.5% | 2026-Q1 |
| GENEVA CAPITAL MANAGEMENT LLC trimmed | 626,496 | $176M | 2.5% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 626,487 | $176M | 2.5% | 2026-Q1 |
| Conestoga Capital Advisors, LLC trimmed | 541,781 | $152M | 2.1% | 2026-Q1 |
| MORGAN STANLEY trimmed | 466,391 | $131M | 1.8% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 406,260 | $114M | 1.6% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 399,288 | $112M | 1.6% | 2026-Q1 |
| Nuveen, LLC trimmed | 362,685 | $102M | 1.4% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 341,988 | $96M | 1.3% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 328,135 | $92M | 1.3% | 2026-Q1 |
| Hood River Capital Management LLC added | 304,140 | $86M | 1.2% | 2026-Q1 |
| LOOMIS SAYLES & CO L P trimmed | 300,753 | $85M | 1.2% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 298,745 | $84M | 1.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 291,701 | $82M | 1.1% | 2026-Q1 |
| WASATCH ADVISORS LP new | 288,254 | $81M | 1.1% | 2026-Q1 |
| NORTHERN TRUST CORP added | 280,402 | $79M | 1.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 373,260 | $73M | 1.0% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 237,890 | $67M | 0.9% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 228,578 | $64M | 0.9% | 2026-Q1 |
| Capital International Investors trimmed | 200,000 | $56M | 0.8% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 188,064 | $53M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 187,754 | $53M | 0.7% | 2026-Q1 |
| Driehaus Capital Management LLC trimmed | 185,705 | $52M | 0.7% | 2026-Q1 |
| Two Creeks Capital Management, LP new | 180,938 | $51M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 180,476 | $51M | 0.7% | 2026-Q1 |
| Rockefeller Capital Management L.P. added | 179,990 | $51M | 0.7% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 169,582 | $48M | 0.7% | 2026-Q1 |
| HAWK RIDGE CAPITAL MANAGEMENT LP new | 168,600 | $47M | 0.7% | 2026-Q1 |
| EMERALD ADVISERS, LLC trimmed | 162,653 | $46M | 0.6% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 161,955 | $46M | 0.6% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 149,233 | $42M | 0.6% | 2026-Q1 |
| Tributary Capital Management, LLC trimmed | 140,896 | $40M | 0.6% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 124,731 | $35M | 0.5% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO trimmed | 115,797 | $33M | 0.5% | 2026-Q1 |
| CRAWFORD INVESTMENT COUNSEL INC trimmed | 115,254 | $32M | 0.5% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 109,362 | $31M | 0.4% | 2026-Q1 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 98,502 | $28M | 0.4% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 98,366 | $28M | 0.4% | 2026-Q1 |
| GHP Investment Advisors, Inc. trimmed | 93,771 | $26M | 0.4% | 2026-Q1 |
| FEDERATED HERMES, INC. trimmed | 93,525 | $26M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 93,116 | $26M | 0.4% | 2026-Q1 |
| Public Sector Pension Investment Board trimmed | 92,646 | $26M | 0.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 90,725 | $26M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 86,963 | $24M | 0.3% | 2026-Q1 |
| Congruence Capital, LLC new | 83,744 | $24M | 0.3% | 2026-Q1 |
| SEI INVESTMENTS CO added | 79,692 | $22M | 0.3% | 2026-Q1 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ trimmed | 78,285 | $22M | 0.3% | 2026-Q1 |
| BESSEMER GROUP INC added | 75,813 | $21M | 0.3% | 2026-Q1 |
| Tidal Investments LLC added | 74,186 | $21M | 0.3% | 2026-Q1 |
| DF DENT & CO INC trimmed | 73,142 | $21M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 69,940 | $20M | 0.3% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 65,715 | $18M | 0.3% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 65,236 | $18M | 0.3% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP trimmed | 67,448 | $18M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 66,844 | $18M | 0.3% | 2026-Q1 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 63,584 | $18M | 0.3% | 2026-Q1 |
| FIFTH THIRD BANCORP added | 63,496 | $18M | 0.2% | 2026-Q1 |
| COMMERCE BANK trimmed | 62,691 | $18M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 60,826 | $17M | 0.2% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC added | 60,523 | $17M | 0.2% | 2026-Q1 |
| Trexquant Investment LP trimmed | 57,657 | $16M | 0.2% | 2026-Q1 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 57,315 | $16M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 56,344 | $16M | 0.2% | 2026-Q1 |
| BARCLAYS PLC added | 51,694 | $15M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 51,200 | $14M | 0.2% | 2026-Q1 |
| MARSHALL WACE, LLP added | 47,344 | $13M | 0.2% | 2026-Q1 |
| Select Equity Group, L.P. added | 47,255 | $13M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 43,444 | $12M | 0.2% | 2026-Q1 |
| OP Asset Management Ltd trimmed | 36,293 | $12M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 41,891 | $12M | 0.2% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 40,609 | $11M | 0.2% | 2026-Q1 |
| AMERICAN CAPITAL MANAGEMENT INC new | 38,414 | $11M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 37,708 | $11M | 0.1% | 2026-Q1 |
| Advisors Asset Management, Inc. added | 37,347 | $11M | 0.1% | 2026-Q1 |
| FMR LLC added | 37,032 | $10M | 0.1% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 35,917 | $10M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 35,783 | $10M | 0.1% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 35,386 | $10M | 0.1% | 2026-Q1 |
| Ceredex Value Advisors LLC trimmed | 33,625 | $9M | 0.1% | 2026-Q1 |
| Emerald Investment Advisers, LLC new | 33,095 | $9M | 0.1% | 2026-Q1 |
| UBS Group AG added | 33,089 | $9M | 0.1% | 2026-Q1 |
| NORGES BANK added | 58,276 | $9M | 0.1% | 2026-Q1 |
| GLOBEFLEX CAPITAL L P added | 32,281 | $9M | 0.1% | 2026-Q1 |
| Jump Financial, LLC added | 31,493 | $9M | 0.1% | 2026-Q1 |
| KORNITZER CAPITAL MANAGEMENT INC /KS | 30,865 | $9M | 0.1% | 2026-Q1 |
| Creative Planning added | 30,831 | $9M | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 30,501 | $9M | 0.1% | 2026-Q1 |
| ALGERT GLOBAL LLC added | 30,327 | $9M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 2,841,776 | $555M | 7.8% | 2025-Q4 stale |
| MACQUARIE GROUP LTD trimmed | 481,376 | $102M | 1.4% | 2025-Q3 stale |
| Champlain Investment Partners, LLC trimmed | 259,805 | $55M | 0.8% | 2025-Q3 stale |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 97,783 | $19M | 0.3% | 2025-Q4 stale |
| COMERICA BANK trimmed | 74,284 | $15M | 0.2% | 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.