Public ownership evidence

Mesa Laboratories Inc (MLAB) Ownership Disclosures

Read MLAB insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Mesa Laboratories Inc: source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-09-11
Trade date
2026-09-09
Reporting owners
Capone Mark Christopher
Code
A
Shares
2,423
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0000724004-26-000097
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read MLAB fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read MLAB fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity
2026-09-112026-09-09Capone Mark ChristopherA2,423Not reported
2026-09-112026-09-09Ladiwala Shiraz ShabanaliA2,510Not reported
2026-09-112009-09-09Alltoft Jennifer SadieA1,774Not reported
2026-09-112026-09-09Hall ShannonA1,774Not reported
2026-09-112026-09-09Sullivan John JamesA1,774Not reported
2026-09-112026-09-09Tripeny R TonyA1,774Not reported
2026-08-182026-08-13Sullivan John JamesS7,093Not reported
2026-08-182026-08-13Kadia SiddharthaP7,093Not reported
2026-08-182026-08-13Tripeny R TonyP900Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Cornerstone Financial Management LLC2026-06-302026-08-297$697None
Cornerstone Financial Management LLC2026-03-312026-08-297$619None
Cornerstone Financial Management LLC2025-12-312026-08-297$550None
Corient Private Wealth LP2026-06-302026-08-282,423$241,211None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2574$7,367None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-257,367$74,000None
Kings Path Partners LLC2026-03-312026-08-223,405$301,070None
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-206,756$672,560None
Transamerica Financial Advisors, LLC2026-06-302026-08-181$99None
Graham Capital Management, L.P.2026-06-302026-08-152,859$284,613None
SEI INVESTMENTS CO2026-06-302026-08-156,329$630,052None
SEI INVESTMENTS CO2026-06-302026-08-15430$42,890None
JPL Wealth Management, LLC2026-06-302026-08-154$399None
Basecamp Wealth Advisors LLC2026-06-302026-08-1523$2,290None
Quarry LP2026-06-302026-08-1519$1,891None
Integrated Quantitative Investments LLC2026-06-302026-08-152,590$257,834None
Meros Investment Management, LP2026-06-302026-08-1567,962$6,765,617None
MONIMUS CAPITAL MANAGEMENT, LP2026-06-302026-08-1555,344$5,509,495None
XTX Topco Ltd2026-06-302026-08-1517,475$1,739,636None
Topline Capital Management, LLC2026-06-302026-08-152,374$236,332None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-1554,463$5,421,792None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-1554,463$5,421,792None
Qube Research & Technologies Ltd2026-06-302026-08-1537,402$3,723,369None
OSAIC HOLDINGS, INC.2026-06-302026-08-1539$3,886None
Man Group plc2026-06-302026-08-1524,070$2,396,169None
MetLife Investment Management, LLC2026-06-302026-08-153,094$308,008None
Engineers Gate Manager LP2026-06-302026-08-1514,731$1,466,471None
JANE STREET GROUP, LLC2026-06-302026-08-1516,588$1,651,335None
JANE STREET GROUP, LLC2026-06-302026-08-1554,992$5,474,454None
Legal & General Group Plc2026-06-302026-08-15520$51,766None
CRAWFORD INVESTMENT COUNSEL INC2026-06-302026-08-1598,805$9,836,038None
Numerai GP LLC2026-06-302026-08-1517,769$1,768,904None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-1511$1,127None
Cerity Partners LLC2026-06-302026-08-152,052$204,277None
Cerity Partners LLC2026-06-302026-08-155,361$533,703None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-157$697None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15202,101$20,119,176None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1528$2,787None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1598$9,756None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-153$299None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15734$73,070None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-153$299None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-1578$7,765None
AQR CAPITAL MANAGEMENT LLC2026-06-302026-08-15687$68,391None
ROYAL BANK OF CANADA2026-06-302026-08-1514,641$1,458,000None
ROYAL BANK OF CANADA2026-06-302026-08-15162$16,000None
ALLIANCEBERNSTEIN L.P.2026-06-302026-08-156,500$574,730None
CANADA PENSION PLAN INVESTMENT BOARD2026-06-302026-08-156,300$627,165None
D. E. Shaw & Co., Inc.2026-06-302026-08-1581,755$8,138,710None
CITADEL ADVISORS LLC2026-06-302026-08-1535,890$3,572,850None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Corient Private Wealth LP ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Kings Path Partners LLC ↗MERCER GLOBAL ADVISORS INC /ADV ↗Transamerica Financial Advisors, LLC ↗Graham Capital Management, L.P. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.

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