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Disclosery

MLAB MESA LABS INC

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Stock (common), issuer CIK 724004

157 managers (161 13F filers) reported a position in MLAB shares at 2026-03-31, 4,827,845 shares in all. 22 filers opened a position and 20 filers sold out during the quarter.

Managers
157
13F filers
161
New
22
Added
61
Reduced
42
Sold out
20
Shares held by filers
4,827,845

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Long Path Partners LP405,583$35.9M16.29%+178,36013F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.393,851$34.8M<0.01%-4,81513F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding325,558$28.8MnewTimeline
Boston Partnersin group Boston Trust Walden Corp268,711$23.8M0.02%+55,33513F-HRTimelineGroup
Select Equity Group, L.P.235,885$20.9M0.11%+29,45013F-HRTimeline
Ranger Investment Management, L.P.202,903$17.9M1.3%-2,36013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC170,562$15.1M0.01%+100,42413F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY162,116$14.3M<0.01%-13,47313F-HRTimelineGroup
ROYCE & ASSOCIATES LP161,229$14.3M0.14%+7,87713F-HRTimeline
Diamond Hill Capital Management, LLC (I…155,302$13.7M0.09%+13,32913F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC142,343$12.6M0.27%-2,26313F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…135,069$11.9M0.01%+18,73213F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC128,002$11.3M<0.01%+5213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP124,630$11M<0.01%+8,26713F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP122,068$10.8M<0.01%+1,42713F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC122,911$10.7M<0.01%+22,51413F-HRTimelineGroup
MONIMUS CAPITAL MANAGEMENT, LP101,292$8.96M2.48%+60,45013F-HRTimeline
CRAWFORD INVESTMENT COUNSEL INC95,535$8.45M0.14%+14,31513F-HRTimeline
Roubaix Capital, LLC72,115$6.38M2.98%+16,92613F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC70,617$6.24M<0.01%+15,34913F-HRTimelineGroup
GAMCO Investors (Gabelli)group of 2 filers holding70,333$6.22M+1,855Timeline
JANUS HENDERSON GROUP PLCin group Janus Henderson69,401$6.14M<0.01%-47,24113F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP69,264$6.12M<0.01%+3,61313F-HRTimelineGroup
Meros Investment Management, LP68,032$6.02M2.61%-16,98513F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co62,424$5.52M<0.01%+51113F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/57,871$5.12M<0.01%+3,20713F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.54,558$4.82M<0.01%-22,00713F-HRTimelineGroup
WASATCH ADVISORS LP51,233$4.53M0.03%new13F-HRTimeline
HERALD INVESTMENT MANAGEMENT Ltd50,000$4.39M0.61%013F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC44,417$3.93M0.02%+5,57513F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp43,937$3.88M<0.01%-83713F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC31,600$2.79M<0.01%+28,10013F-HRTimeline
BBR PARTNERS, LLC25,195$2.23M0.12%013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources21,553$1.91M<0.01%-52113F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC20,328$1.8M<0.01%new13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD19,006$1.68M<0.01%-3,60013F-HRTimeline
Trexquant Investment LP18,661$1.65M0.01%-27,46013F-HRTimeline
SEGALL BRYANT & HAMILL, LLC18,174$1.61M0.02%-2913F-HR/ATimeline
KING LUTHER CAPITAL MANAGEMENT CORP17,411$1.54M0.01%013F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP16,359$1.45M<0.01%+4,12413F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.16,309$1.44M<0.01%+2,85113F-HRTimelineGroup
Creative Planningin group Creative Planning14,994$1.33M<0.01%+2,55713F-HRTimelineGroup
RICE HALL JAMES & ASSOCIATES, LLC14,222$1.26M0.07%+513F-HRTimeline
CenterBook Partners LP14,194$1.26M0.07%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.14,103$1.25M<0.01%+1,25813F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…13,722$1.21M<0.01%013F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC13,373$1.18M<0.01%-9713F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA13,275$1.17M<0.01%+7,81813F-HRTimelineGroup
UBS Group AGin group UBS Group AG12,046$1.07M<0.01%+3,22113F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP11,363$1M<0.01%+8813F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC11,088$980K<0.01%-3,80413F-HRTimelineGroup
Numerai GP LLC10,952$968K0.1%-3,95713F-HRTimeline
GLOBEFLEX CAPITAL L P10,838$958K0.15%new13F-HRTimeline
Nuveen, LLCin group TIAA10,139$896K<0.01%+6113F-HRTimelineGroup
IEQ CAPITAL, LLC9,658$854K<0.01%new13F-HRTimeline
Connor, Clark & Lunn Investment Managem…9,517$841K<0.01%-4,85213F-HRTimeline
Mariner, LLCin group Mariner, LLC8,966$793K<0.01%+5,65313F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd8,693$769K0.01%-4,83513F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC8,624$763K<0.01%+1,69213F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC8,423$745K<0.01%-50,09813F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC7,608$673K0.01%new13F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO7,403$655K<0.01%-96813F-HRTimelineGroup
Cerity Partners LLCin group Cerity Partners LLC7,245$641K<0.01%+3,88413F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL6,874$608K<0.01%-20,55213F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD6,800$601K<0.01%+3,10013F-HRTimeline
RHUMBLINE ADVISERS6,547$579K<0.01%-7013F-HRTimeline
FMR LLCin group FMR LLC6,470$572K<0.01%+5,62413F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd6,315$558K0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd6,201$548K0.01%-6,40013F-HRTimelineGroup
CWM, LLCin group CWM, LLC5,809$514K<0.01%+4,32413F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…5,316$470K<0.01%+26113F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\5,043$446K<0.01%+60313F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.5,302$416K<0.01%-12213F-HRTimeline
LPL Financial LLC4,553$403K<0.01%-43113F-HRTimeline
Quantinno Capital Management LP4,318$382K<0.01%+65713F-HRTimeline
INCEPTIONR LLC4,078$361K0.09%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC3,863$341K<0.01%-5,80213F-HRTimelineGroup
Engineers Gate Manager LP3,766$333K<0.01%+73513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/3,637$322K<0.01%+49613F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO3,687$314K<0.01%-41313F-HR/ATimelineGroup
EntryPoint Capital, LLC3,469$307K0.09%013F-HRTimeline
Kings Path Partners LLC3,405$301K0.1%013F-HR/ATimeline
Graham Capital Management, L.P.3,329$294K0.01%-39413F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…3,224$294K<0.01%new13F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC3,187$282K<0.01%+44013F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV3,100$274K<0.01%new13F-HRTimeline
Brooklyn Investment Group2,913$257K0.01%-66313F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…2,888$255K<0.01%013F-HRTimelineGroup
SG Americas Securities, LLC2,667$236K<0.01%-94213F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…2,564$227K<0.01%013F-HRTimeline
Man Group plcin group Man Group plc2,477$219K<0.01%-10,91013F-HRTimelineGroup
CAPTRUST FINANCIAL ADVISORS2,361$209K<0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND2,143$189K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN1,916$169K<0.01%-3,83613F-HR/ATimelineGroup
US BANCORP \DE\in group US BANCORP \DE\1,461$129K<0.01%+12413F-HRTimelineGroup
Police & Firemen's Retirement System of…1,331$118K<0.01%013F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…1,181$104K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS1,168$103K<0.01%-8,23813F-HRTimelineGroup
Smartleaf Asset Management LLC1,143$97.2K<0.01%-5913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC1,002$88.6K<0.01%-7,18413F-HRTimelineGroup
Asset Dedication, LLC830$73.4K0.01%013F-HRTimeline
Arax Advisory Partners730$64.6K<0.01%+3813F-HRTimeline
Geneos Wealth Management Inc.728$64.4K<0.01%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK674$59.6K<0.01%+46113F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…509$45K<0.01%013F-HRTimelineGroup
SRH ADVISORS, LLC500$44.2K0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…481$42.5K<0.01%-8313F-HRTimelineGroup
Farther Finance Advisors, LLC469$41.5K<0.01%+4513F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc469$41.5K<0.01%-7913F-HRTimelineGroup
Quantbot Technologies LP409$36.2K<0.01%-1,68613F-HRTimeline
CITIGROUP INCin group CITIGROUP INC372$32.9K<0.01%+14613F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…284$25.1K<0.01%-3913F-HRTimeline
State of Alaska, Department of Revenue278$24K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…254$22.5K<0.01%-8413F-HRTimelineGroup
Allworth Financial LP249$22K<0.01%+20913F-HRTimeline
Hilltop National Bank200$17.7K<0.01%013F-HRTimeline
MAI Capital Management198$17.5K<0.01%+18913F-HRTimeline
GAMMA Investing LLC198$17.5K<0.01%+18013F-HRTimeline
NISA INVESTMENT ADVISORS, LLC149$13.2K<0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…132$11.7K<0.01%+1313F-HRTimelineGroup
Versant Capital Management, Inc130$11.5K<0.01%+6913F-HRTimeline
Essential Partners LLC124$11K<0.01%+11013F-HRTimeline
Millstone Evans Group, LLC120$10.6K0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…117$10.3K<0.01%+9313F-HR/ATimelineGroup
Steward Partners Investment Advisory, L…117$10.3K<0.01%new13F-HRTimeline
Covestor Ltd115$10K0.01%+1113F-HRTimeline
ROTHSCHILD INVESTMENT LLC109$9.64K<0.01%+8413F-HRTimeline
HARBOUR INVESTMENTS, INC.82$7.3K<0.01%013F-HRTimeline
Root Financial Partners, LLC74$6.54K<0.01%new13F-HRTimeline
HANTZ FINANCIAL SERVICES, INC.49$4K<0.01%-1113F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
BESSEMER GROUP INCin group BESSEMER GROUP INC42$4K<0.01%013F-HRTimelineGroup
Sound Income Strategies, LLC40$3.55K<0.01%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC34$3.01K<0.01%013F-HRTimeline
Sterling Capital Management LLC34$3.01K<0.01%-213F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.32$2.83K<0.01%new13F-HR/ATimelineGroup
Parallel Advisors, LLC27$2.39K<0.01%new13F-HR/ATimeline
Wealth Preservation Advisors, LLC25$2.21K<0.01%new13F-HRTimeline
True Wealth Design, LLC24$2.12K<0.01%+2013F-HRTimeline
SJS Investment Consulting Inc.20$1.77K<0.01%+1813F-HRTimeline
Larson Financial Group LLC17$1.5K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.14$1.24K<0.01%013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP11$903<0.01%+913F-HRTimelineGroup
Parkside Financial Bank & Trust10$888<0.01%013F-HRTimeline
Cedar Mountain Advisors, LLC10$884<0.01%013F-HRTimeline
IFP Advisors, Inc8$707<0.01%+713F-HRTimeline
Cornerstone Financial Management LLC7$619<0.01%013F-HR/ATimeline
SIGNATUREFD, LLC6$531<0.01%013F-HRTimeline
QUADRANT CAPITAL GROUP LLC5$443<0.01%-513F-HR/ATimeline
Sunbelt Securities, Inc.5$442<0.01%013F-HRTimeline
Basecamp Wealth Advisors LLC5$442<0.01%new13F-HRTimeline
Salomon & Ludwin, LLC4$364<0.01%013F-HRTimeline
Caitong International Asset Management …4$354<0.01%new13F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…4$336<0.01%new13F-HRTimelineGroup
JPL Wealth Management, LLC2$177<0.01%new13F-HR/ATimeline
GILPIN WEALTH MANAGEMENT, LLC1$89<0.01%013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…1$88<0.01%new13F-HRTimelineGroup
Bruce G. Allen Investments, LLC1$46<0.01%013F-HRTimeline

Events

  • WASATCH ADVISORS LP reported 387,129 MLAB shares, 6.9% of the class, as of 2026-09-30, in a 13G filed 2026-10-09. 0000814133-26-000124

    Accepted , ingested