SEC filingsOct 12, 2026 to Oct 19, 2026: insiders reported 840 purchases and sales across 212 companies.840 insider purchases and sales in 7 daysSee the filings →
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Company profile

MLAB

Mesa Laboratories Inc.
NASDAQInformation Technology

Latest close: 122.48 USD · Oct 16, 2026 · 1 year · split-adjusted

On the price, the facts of the public record■Insider buy□Insider sell●Results filed
With an account, also○dividends▲splits◌next earningswith an account

End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.

Latest on record

The most recent facts, as filed.

Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.

  1. Oct 13, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  2. Sep 8, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
  3. Aug 27, 2026Notice of sale · Form 144Owens Gary M · Former Officer · $2.6MOpen the filing ↗

In numbers

What this profile holds, counted.

Closes · 1 year250
SEC filings on record1,20613 flagged findings
Reported transactions (Form 4)80since Jun 21, 2025 · and 11 other holdings
Corporate events (8-K)30since Apr 2, 2020

What the record says

Description, identity and filings, each with its source.

Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.

SEC topics

Regulatory history

Topics detected in its SEC reports, with the original excerpt.

Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.

  • 2026-02-03share offering or dilution eventrecentOpen filing ↗
    “…net 67,898 72,880 Other intangibles, net 21,748 23,995 Goodwill 189,303 181,760 Total assets $ 434,849 $ 433,348 LIABILITIES AND…”
    +1 more passage from the same document
    • “…30,715 30,415 General and administrative 18,805 18,472 54,526 52,754 Research and development 5,029 5,053 15,061 14,422 Total…”
  • 2026-02-03capital return (buybacks/dividends)recentOpen filing ↗
    “…162,486 November 2025 - - - 162,486 December 2025 - - - 162,486 Total - - - 162,486 (1) Shares purchased during the period were…”
    +1 more passage from the same document
    • “…( 3,451 ) ( 50 ) Unearned revenues ( 514 ) ( 849 ) Net cash provided by operating activities 28,869 34,143 Cash flows from…”

Original excerpts from SEC filings, untranslated. Not advice and not a prediction.

SEC record

SEC dossier

What this company has filed with the SEC, in plain language.

The 25 most recent filings (of 1,206)

Everything filed

Every SEC filing, newest first, with what it is. Below, each type with its own explanation.

  • Oct 13, 268-K ↗Current report · Restructuring plan with committed costs new
  • Oct 9, 26SCHEDULE 13G ↗Passive stake · Wasatch Advisors LP · 6.9% · event on Sep 30, 26
  • Insider transaction · 6 Form 4 filingsshow all 6hide
  • Sep 8, 268-K ↗Current report · Shareholder vote results
  • Notice of proposed sale · 2 Form 144 filingsshow all 2hide
  • Insider transaction · 9 Form 4 filingsshow all 9hide
  • Aug 10, 2610-Q ↗Quarterly report
  • Aug 10, 268-K ↗Current report · Results
  • Jul 30, 268-K ↗Current report · Code of ethics change or waiver
  • Jul 22, 26DEF 14A ↗Shareholder meeting and votes
  • Jul 7, 26SCHEDULE 13G/A ↗Passive stake · Long Path Smaller Companies Fund, LP · 8.6% · event on Jun 30, 26 · amendment

1,206 filings on record, the oldest from Dec 22, 99.

Listing the 25 most recent filings of the 1,206 on record.

8-Ks, explained

Stress3Structure35Governance38
  • Oct 13, 26StressRestructuring plan with committed costs+2 more in the same filing8-K 2.05 ↗
  • Governance3 senior executive changes2026show all 3hide
    • Jun 15, 26GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
    • Mar 23, 26GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
    • Mar 9, 26GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Aug 18, 25StructureTook on a new financial obligation+1 more in the same filing8-K 2.03 ↗
  • Jun 6, 25GovernanceAuditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
  • Sep 11, 24GovernanceAuditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
  • Apr 8, 24StructureEntered a material agreement+3 more in the same filing8-K 1.01 ↗
  • Apr 2, 24StressWrite-down of assets+1 more in the same filing8-K 2.06 ↗
  • Jan 8, 24GovernanceA senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
  • Oct 10, 23StructureEntered a material agreement+2 more in the same filing8-K 1.01 ↗
  • Aug 30, 23GovernanceAuditor change filing (8-K Item 4.01)+1 more in the same filing8-K 4.01 ↗
  • Governance4 senior executive changes2022 – 2023show all 4hide
    • May 8, 23GovernanceA senior executive left or was appointed8-K 5.02 ↗
    • Nov 4, 22GovernanceA senior executive left or was appointed8-K/A 5.02 ↗
    • Jun 27, 22GovernanceA senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
    • Apr 11, 22GovernanceA senior executive left or was appointed8-K 5.02 ↗
  • Apr 5, 22StructureEntered a material agreement+1 more in the same filing8-K 1.01 ↗

10 older filings not shown · The record reaches back to May 10, 06.

Notable in the record

Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.

The full record holds 3 stress filings.

Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.

Ownership and control

Schedule 13G: short-form filing

The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.

  • Conestoga Capital Advisors11.4%Dec 31, 24SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum.
  • Long Path Smaller Companies Fund, LP8.6%Jun 30, 26SCHEDULE 13G/A ↗6 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
  • Wasatch Advisors LP6.9%Sep 30, 26SCHEDULE 13G ↗
  • BlackRock, Inc.6.9%Sep 30, 25SCHEDULE 13G/A ↗1 earlier filing
  • The Vanguard Group5.8%Sep 30, 25SCHEDULE 13G/A ↗
show one more holderhide

Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.

Sale intention announced

On Aug 27, Owens Gary M filed notice of intent to sell up to $2.6M. That is about 0.36% of shares outstanding.

A notice is not a sale: it may not go ahead, may happen in part, or at a different price.

No sale of theirs is on record yet in Form 4; the 90-day window is still open.

View notice (Form 144) ↗+3 more recent notices · 2 with a later sale

SEC record

Insider transactions

Buys and sells reported by officers, directors and major shareholders on SEC Form 4.

Buys and sells

  • Aug 13, 26Buy$102KR Tony Tripeny↗
  • Aug 13, 26Buy$800KSiddhartha KadiaPresident and CEO↗
  • Aug 13, 26Sell$800KJohn James Sullivan↗
  • Jun 22, 26Sell$253KJohn SakysCFO↗
  • Jun 22, 26Sell$225KBrian David ArchboldSVP Operations↗
  • Jun 22, 26Sell$40KLyndsey Elizabeth CrennenCAO↗
  • Jun 16, 26Sell$124KJohn SakysCFO↗
  • Jun 16, 26Sell$12KLyndsey Elizabeth CrennenCAO↗
  • Jun 16, 26Sell$117KBrian David ArchboldSVP Operations↗
  • Mar 10, 26Buy$100KR Tony Tripeny↗
  • Mar 10, 26Buy$99KMark Christopher Capone↗
  • Mar 10, 26Buy$253KShiraz Shabanali Ladiwala↗
Stock compensation, tax and giftsshow the 28 other transactionshide

Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.

  • Aug 15, 26Compensationamount n/aJohn James Sullivan↗
  • Aug 15, 26Compensationamount n/aR Tony Tripeny↗
  • Aug 15, 26Compensationamount n/aShannon Hall↗
  • Aug 15, 26Compensationamount n/aShiraz Shabanali Ladiwala↗
  • Aug 15, 26Compensationamount n/aJennifer Sadie Alltoft↗
  • Aug 15, 26Compensationamount n/aMark Christopher Capone↗
  • Jun 18, 26Compensation$99KJohn SakysCFO↗
  • Jun 18, 26Compensation$262KJohn SakysCFO↗
  • Jun 18, 26Compensation$217KJohn SakysCFO↗
  • Jun 18, 26Compensation$80KBrian David ArchboldSVP Operations↗
  • Jun 18, 26Compensation$236KBrian David ArchboldSVP Operations↗
  • Jun 18, 26Compensation$177KBrian David ArchboldSVP Operations↗
  • Jun 18, 26Compensation$12KLyndsey Elizabeth CrennenCAO↗
  • Jun 18, 26Compensation$22KLyndsey Elizabeth CrennenCAO↗
  • Jun 18, 26Compensation$35KLyndsey Elizabeth CrennenCAO↗
  • Jun 18, 26Compensation$25KLyndsey Elizabeth CrennenCAO↗
  • Jun 15, 26Compensation$283KJohn SakysCFO↗
  • Jun 15, 26Compensation$255KBrian David ArchboldSVP Operations↗
  • Dec 2, 25Giftamount n/aJohn James Sullivan↗
  • Oct 27, 25Compensationamount n/aGary M OwensPresident and CEO↗
  • Aug 15, 25Compensationamount n/aJennifer Sadie Alltoft↗
  • Aug 15, 25Compensationamount n/aMark Christopher Capone↗
  • Aug 15, 25Compensationamount n/aR Tony Tripeny↗
  • Aug 15, 25Compensationamount n/aShannon Hall↗
  • Aug 15, 25Compensationamount n/aJohn James Sullivan↗
  • Aug 15, 25Compensationamount n/aShiraz Shabanali Ladiwala↗
  • Jun 21, 25Compensation$316KGary M OwensPresident and CEO↗
  • Jun 21, 25Tax$138KGary M OwensPresident and CEO↗

The full record holds 135 transactions and goes back to Sep 9, 09.

Its sector and its market

Mesa Laboratories Inc. among Information Technology companies

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Coverage

What sits behind this page.

Where each figure comes from and how far it reaches.

Prices
End-of-day closes provided by Twelve Data. One close per session; not real time. Closes adjusted for splits.
Series quality
250 clean closes in the period.
SEC records
1,206 documents on file, from Dec 22, 1999 to Oct 13, 2026.
Company description
No description available.
This page
Generated on Oct 19, 2026; refreshed through the day.

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Which SEC documents appear here?

Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.

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It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.

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