Who owns LMB (LMB)
Which tracked institutional funds hold LMB, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See LMB 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
41 tracked funds added or opened LMB while 30 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
LMB’s largest tracked holder by dollar value, WASATCH ADVISORS LP, sizes it at 0.5% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.5pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in LMB 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 188 tracked filers holding LMB, 110 increased or opened the position and 82 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 LMB 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 17
- VANGUARD CAPITAL MANAGEMENT LLC$36M
- GENEVA CAPITAL MANAGEMENT LLC$18M
- WCM INVESTMENT MANAGEMENT, LLC$6M
- VANGUARD FIDUCIARY TRUST CO$6M
- VANGUARD PORTFOLIO MANAGEMENT LLC$6M
- Pillsbury Lake Capital LLC$4M
Full exits 13
- VANGUARD GROUP INC$41M
- Makaira Partners LLC$8M
- LOOMIS SAYLES & CO L P$6M
- JANE STREET GROUP, LLC$4M
- Ranger Investment Management, L.P.$3M
- F/m Investments LLC$3M
Largest adds
- Capital International Investors$14M
- Thrivent Financial for Lutherans$7M
- ROYCE & ASSOCIATES LP$4M
- RENAISSANCE GROUP LLC$3M
- FMR LLC$2M
- NORTHERN TRUST CORP$2M
Largest trims
- FIRST TRUST ADVISORS LP$33M
- BlackRock, Inc.$18M
- MORGAN STANLEY$5M
- Squarepoint Ops LLC$4M
- ACADIAN ASSET MANAGEMENT LLC$2M
- Russell Investments Group, Ltd.$2M
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 |
|---|---|---|---|---|
| WASATCH ADVISORS LP trimmed | 969,639 | $76M | 8.0% | 2026-Q1 |
| Thrivent Financial for Lutherans added | 879,638 | $69M | 7.2% | 2026-Q1 |
| BlackRock, Inc. trimmed | 846,865 | $66M | 7.0% | 2026-Q1 |
| Capital International Investors added | 823,702 | $64M | 6.8% | 2026-Q1 |
| FMR LLC added | 634,361 | $50M | 5.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 462,766 | $36M | 3.8% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 380,764 | $30M | 3.1% | 2026-Q1 |
| NEUMEIER POMA INVESTMENT COUNSEL LLC trimmed | 313,938 | $25M | 2.6% | 2026-Q1 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | 311,343 | $24M | 2.6% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 272,472 | $21M | 2.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 265,771 | $21M | 2.2% | 2026-Q1 |
| GENEVA CAPITAL MANAGEMENT LLC new | 236,090 | $18M | 1.9% | 2026-Q1 |
| STATE STREET CORP added | 235,061 | $18M | 1.9% | 2026-Q1 |
| Rockefeller Capital Management L.P. added | 230,625 | $18M | 1.9% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 171,348 | $14M | 1.4% | 2026-Q1 |
| BESSEMER GROUP INC added | 174,658 | $14M | 1.4% | 2026-Q1 |
| MORGAN STANLEY trimmed | 156,830 | $12M | 1.3% | 2026-Q1 |
| NORTHERN TRUST CORP added | 150,517 | $12M | 1.2% | 2026-Q1 |
| Clearbridge Investments, LLC trimmed | 132,819 | $10M | 1.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 130,171 | $10M | 1.1% | 2026-Q1 |
| Granite Investment Partners, LLC added | 110,269 | $9M | 0.9% | 2026-Q1 |
| RENAISSANCE GROUP LLC added | 104,828 | $8M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 99,082 | $8M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 89,433 | $7M | 0.7% | 2026-Q1 |
| Polar Asset Management Partners Inc. added | 89,301 | $7M | 0.7% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC new | 78,381 | $6M | 0.6% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 77,688 | $6M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 77,407 | $6M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 75,751 | $6M | 0.6% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 75,548 | $6M | 0.6% | 2026-Q1 |
| UBS Group AG added | 68,348 | $5M | 0.6% | 2026-Q1 |
| Pillsbury Lake Capital LLC new | 56,520 | $4M | 0.5% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 49,621 | $4M | 0.4% | 2026-Q1 |
| VELA Investment Management, LLC new | 43,106 | $3M | 0.4% | 2026-Q1 |
| ISTHMUS PARTNERS, LLC trimmed | 40,474 | $3M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 40,136 | $3M | 0.3% | 2026-Q1 |
| Emerald Investment Advisers, LLC new | 39,664 | $3M | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 39,004 | $3M | 0.3% | 2026-Q1 |
| NEXT CENTURY GROWTH INVESTORS LLC trimmed | 37,757 | $3M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 35,973 | $3M | 0.3% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 35,785 | $3M | 0.3% | 2026-Q1 |
| Expect Equity LLC added | 31,337 | $2M | 0.3% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 28,431 | $2M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 28,333 | $2M | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 27,687 | $2M | 0.2% | 2026-Q1 |
| CAMPBELL NEWMAN ASSET MANAGEMENT INC new | 25,017 | $2M | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 24,510 | $2M | 0.2% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 23,213 | $2M | 0.2% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 22,783 | $2M | 0.2% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC trimmed | 22,454 | $2M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 22,183 | $2M | 0.2% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC | 21,913 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank | 21,800 | $2M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 20,963 | $2M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 20,803 | $2M | 0.2% | 2026-Q1 |
| JB CAPITAL PARTNERS LP | 20,000 | $2M | 0.2% | 2026-Q1 |
| Pathstone Holdings, LLC added | 19,232 | $2M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 19,202 | $1M | 0.2% | 2026-Q1 |
| Corient Private Wealth LLC added | 17,197 | $1M | 0.1% | 2026-Q1 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC new | 17,131 | $1M | 0.1% | 2026-Q1 |
| Knights of Columbus Asset Advisors LLC trimmed | 16,702 | $1M | 0.1% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed | 16,653 | $1M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 15,655 | $1M | 0.1% | 2026-Q1 |
| WITTENBERG INVESTMENT MANAGEMENT, INC. | 14,597 | $1M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 14,276 | $1M | 0.1% | 2026-Q1 |
| EASTERLY INVESTMENT PARTNERS LLC new | 14,051 | $1M | 0.1% | 2026-Q1 |
| Invesco Ltd. added | 13,744 | $1M | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 13,537 | $1M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 531,536 | $41M | 4.4% | 2025-Q4 stale |
| T. Rowe Price Investment Management, Inc. added | 305,556 | $30M | 3.1% | 2025-Q3 stale |
| Driehaus Capital Management LLC added | 153,878 | $22M | 2.3% | 2025-Q2 stale |
| LORD, ABBETT & CO. LLC trimmed | 90,011 | $9M | 0.9% | 2025-Q3 stale |
| OBERWEIS ASSET MANAGEMENT INC/ | 83,700 | $8M | 0.9% | 2025-Q3 stale |
| Makaira Partners LLC added | 102,239 | $8M | 0.8% | 2025-Q4 stale |
| Potrero Capital Research LLC trimmed | 46,305 | $6M | 0.7% | 2025-Q2 stale |
| LOOMIS SAYLES & CO L P added | 77,354 | $6M | 0.6% | 2025-Q4 stale |
| GLOBEFLEX CAPITAL L P trimmed | 41,645 | $6M | 0.6% | 2025-Q2 stale |
| Informed Momentum Co LLC added | 41,094 | $6M | 0.6% | 2025-Q2 stale |
| Allspring Global Investments Holdings, LLC added | 41,719 | $6M | 0.6% | 2025-Q2 stale |
| Global IMC LLC new | 37,309 | $5M | 0.6% | 2025-Q2 stale |
| JANE STREET GROUP, LLC added | 48,032 | $4M | 0.4% | 2025-Q4 stale |
| Ranger Investment Management, L.P. trimmed | 43,612 | $3M | 0.4% | 2025-Q4 stale |
| NJ State Employees Deferred Compensation Plan | 33,000 | $3M | 0.3% | 2025-Q3 stale |
| F/m Investments LLC trimmed | 40,212 | $3M | 0.3% | 2025-Q4 stale |
| CASTLEARK MANAGEMENT LLC new | 21,140 | $3M | 0.3% | 2025-Q2 stale |
| Global Alpha Capital Management Ltd. added | 26,752 | $3M | 0.3% | 2025-Q3 stale |
| BOSUN ASSET MANAGEMENT, LLC trimmed | 15,717 | $2M | 0.2% | 2025-Q2 stale |
| Calamos Advisors LLC trimmed | 15,471 | $2M | 0.2% | 2025-Q2 stale |
| Turas Capital Management LP new | 27,393 | $2M | 0.2% | 2025-Q4 stale |
| Harvest Investment Services, LLC trimmed | 14,192 | $2M | 0.2% | 2025-Q2 stale |
| Lisanti Capital Growth, LLC new | 12,170 | $2M | 0.2% | 2025-Q2 stale |
| TWINBEECH CAPITAL LP new | 14,272 | $1M | 0.1% | 2025-Q3 stale |
| BRIGHTON JONES LLC added | 14,133 | $1M | 0.1% | 2025-Q3 stale |
| Moody Aldrich Partners LLC trimmed | 17,041 | $1M | 0.1% | 2025-Q4 stale |
| Catalyst Funds Management Pty Ltd added | 12,500 | $1M | 0.1% | 2025-Q3 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 14,881 | $1M | 0.1% | 2025-Q4 stale |
| DARK FOREST CAPITAL MANAGEMENT LP trimmed | 11,884 | $1M | 0.1% | 2025-Q3 stale |
| TD Asset Management Inc added | 10,882 | $1M | 0.1% | 2025-Q3 stale |
| PANAGORA ASSET MANAGEMENT INC added | 13,293 | $1M | 0.1% | 2025-Q4 stale |
| PRINCIPAL FINANCIAL GROUP INC added | 13,873 | $1M | 0.1% | 2025-Q1 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.