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Institutional Ownership · SEC Form 13F

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.

188
Institutional holders
10,121,412
Shares held (tracked funds)
87.1%
Of shares outstanding

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).

FundSharesReported value% of valueQuarter
WASATCH ADVISORS LP trimmed969,639$76M8.0%2026-Q1
Thrivent Financial for Lutherans added879,638$69M7.2%2026-Q1
BlackRock, Inc. trimmed846,865$66M7.0%2026-Q1
Capital International Investors added823,702$64M6.8%2026-Q1
FMR LLC added634,361$50M5.2%2026-Q1
VANGUARD CAPITAL MANAGEMENT LLC new462,766$36M3.8%2026-Q1
ROYCE & ASSOCIATES LP added380,764$30M3.1%2026-Q1
NEUMEIER POMA INVESTMENT COUNSEL LLC trimmed313,938$25M2.6%2026-Q1
CORSAIR CAPITAL MANAGEMENT, L.P.311,343$24M2.6%2026-Q1
GEODE CAPITAL MANAGEMENT, LLC added272,472$21M2.2%2026-Q1
DIMENSIONAL FUND ADVISORS LP added265,771$21M2.2%2026-Q1
GENEVA CAPITAL MANAGEMENT LLC new236,090$18M1.9%2026-Q1
STATE STREET CORP added235,061$18M1.9%2026-Q1
Rockefeller Capital Management L.P. added230,625$18M1.9%2026-Q1
SEGALL BRYANT & HAMILL, LLC trimmed171,348$14M1.4%2026-Q1
BESSEMER GROUP INC added174,658$14M1.4%2026-Q1
MORGAN STANLEY trimmed156,830$12M1.3%2026-Q1
NORTHERN TRUST CORP added150,517$12M1.2%2026-Q1
Clearbridge Investments, LLC trimmed132,819$10M1.1%2026-Q1
RENAISSANCE TECHNOLOGIES LLC added130,171$10M1.1%2026-Q1
Granite Investment Partners, LLC added110,269$9M0.9%2026-Q1
RENAISSANCE GROUP LLC added104,828$8M0.9%2026-Q1
GOLDMAN SACHS GROUP INC trimmed99,082$8M0.8%2026-Q1
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added89,433$7M0.7%2026-Q1
Polar Asset Management Partners Inc. added89,301$7M0.7%2026-Q1
WCM INVESTMENT MANAGEMENT, LLC new78,381$6M0.6%2026-Q1
ENVESTNET ASSET MANAGEMENT INC added77,688$6M0.6%2026-Q1
CITADEL ADVISORS LLC added77,407$6M0.6%2026-Q1
VANGUARD FIDUCIARY TRUST CO new75,751$6M0.6%2026-Q1
VANGUARD PORTFOLIO MANAGEMENT LLC new75,548$6M0.6%2026-Q1
UBS Group AG added68,348$5M0.6%2026-Q1
Pillsbury Lake Capital LLC new56,520$4M0.5%2026-Q1
SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed49,621$4M0.4%2026-Q1
VELA Investment Management, LLC new43,106$3M0.4%2026-Q1
ISTHMUS PARTNERS, LLC trimmed40,474$3M0.3%2026-Q1
WELLS FARGO & COMPANY/MN trimmed40,136$3M0.3%2026-Q1
Emerald Investment Advisers, LLC new39,664$3M0.3%2026-Q1
BANK OF AMERICA CORP /DE/ added39,004$3M0.3%2026-Q1
NEXT CENTURY GROWTH INVESTORS LLC trimmed37,757$3M0.3%2026-Q1
Bank of New York Mellon Corp trimmed35,973$3M0.3%2026-Q1
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added35,785$3M0.3%2026-Q1
Expect Equity LLC added31,337$2M0.3%2026-Q1
Qube Research & Technologies Ltd trimmed28,431$2M0.2%2026-Q1
AMERIPRISE FINANCIAL INC trimmed28,333$2M0.2%2026-Q1
Nuveen, LLC added27,687$2M0.2%2026-Q1
CAMPBELL NEWMAN ASSET MANAGEMENT INC new25,017$2M0.2%2026-Q1
SUSQUEHANNA INTERNATIONAL GROUP, LLP added24,510$2M0.2%2026-Q1
NEW YORK STATE COMMON RETIREMENT FUND added23,213$2M0.2%2026-Q1
PRELUDE CAPITAL MANAGEMENT, LLC added22,783$2M0.2%2026-Q1
GREAT LAKES ADVISORS, LLC trimmed22,454$2M0.2%2026-Q1
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added22,183$2M0.2%2026-Q1
JANUS HENDERSON GROUP PLC21,913$2M0.2%2026-Q1
Swiss National Bank21,800$2M0.2%2026-Q1
AMERICAN CENTURY COMPANIES INC trimmed20,963$2M0.2%2026-Q1
MILLENNIUM MANAGEMENT LLC trimmed20,803$2M0.2%2026-Q1
JB CAPITAL PARTNERS LP20,000$2M0.2%2026-Q1
Pathstone Holdings, LLC added19,232$2M0.2%2026-Q1
Quantinno Capital Management LP added19,202$1M0.2%2026-Q1
Corient Private Wealth LLC added17,197$1M0.1%2026-Q1
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC new17,131$1M0.1%2026-Q1
Knights of Columbus Asset Advisors LLC trimmed16,702$1M0.1%2026-Q1
O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed16,653$1M0.1%2026-Q1
FIRST TRUST ADVISORS LP trimmed15,655$1M0.1%2026-Q1
WITTENBERG INVESTMENT MANAGEMENT, INC.14,597$1M0.1%2026-Q1
RHUMBLINE ADVISERS trimmed14,276$1M0.1%2026-Q1
EASTERLY INVESTMENT PARTNERS LLC new14,051$1M0.1%2026-Q1
Invesco Ltd. added13,744$1M0.1%2026-Q1
TWO SIGMA INVESTMENTS, LP added13,537$1M0.1%2026-Q1
VANGUARD GROUP INC trimmed531,536$41M4.4%2025-Q4 stale
T. Rowe Price Investment Management, Inc. added305,556$30M3.1%2025-Q3 stale
Driehaus Capital Management LLC added153,878$22M2.3%2025-Q2 stale
LORD, ABBETT & CO. LLC trimmed90,011$9M0.9%2025-Q3 stale
OBERWEIS ASSET MANAGEMENT INC/83,700$8M0.9%2025-Q3 stale
Makaira Partners LLC added102,239$8M0.8%2025-Q4 stale
Potrero Capital Research LLC trimmed46,305$6M0.7%2025-Q2 stale
LOOMIS SAYLES & CO L P added77,354$6M0.6%2025-Q4 stale
GLOBEFLEX CAPITAL L P trimmed41,645$6M0.6%2025-Q2 stale
Informed Momentum Co LLC added41,094$6M0.6%2025-Q2 stale
Allspring Global Investments Holdings, LLC added41,719$6M0.6%2025-Q2 stale
Global IMC LLC new37,309$5M0.6%2025-Q2 stale
JANE STREET GROUP, LLC added48,032$4M0.4%2025-Q4 stale
Ranger Investment Management, L.P. trimmed43,612$3M0.4%2025-Q4 stale
NJ State Employees Deferred Compensation Plan33,000$3M0.3%2025-Q3 stale
F/m Investments LLC trimmed40,212$3M0.3%2025-Q4 stale
CASTLEARK MANAGEMENT LLC new21,140$3M0.3%2025-Q2 stale
Global Alpha Capital Management Ltd. added26,752$3M0.3%2025-Q3 stale
BOSUN ASSET MANAGEMENT, LLC trimmed15,717$2M0.2%2025-Q2 stale
Calamos Advisors LLC trimmed15,471$2M0.2%2025-Q2 stale
Turas Capital Management LP new27,393$2M0.2%2025-Q4 stale
Harvest Investment Services, LLC trimmed14,192$2M0.2%2025-Q2 stale
Lisanti Capital Growth, LLC new12,170$2M0.2%2025-Q2 stale
TWINBEECH CAPITAL LP new14,272$1M0.1%2025-Q3 stale
BRIGHTON JONES LLC added14,133$1M0.1%2025-Q3 stale
Moody Aldrich Partners LLC trimmed17,041$1M0.1%2025-Q4 stale
Catalyst Funds Management Pty Ltd added12,500$1M0.1%2025-Q3 stale
VOLORIDGE INVESTMENT MANAGEMENT, LLC new14,881$1M0.1%2025-Q4 stale
DARK FOREST CAPITAL MANAGEMENT LP trimmed11,884$1M0.1%2025-Q3 stale
TD Asset Management Inc added10,882$1M0.1%2025-Q3 stale
PANAGORA ASSET MANAGEMENT INC added13,293$1M0.1%2025-Q4 stale
PRINCIPAL FINANCIAL GROUP INC added13,873$1M0.1%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.

HoldersTotal shares

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.

Learn how to read institutional ownership