MESA LABORATORIES INC /CO/·4

Jun 16, 2:15 PM ET

Sakys John 4

4 · MESA LABORATORIES INC /CO/ · Filed Jun 16, 2026

Research Summary

AI-generated summary of this filing

Updated

Mesa Labs (MLAB) CFO John Sakys Exercises Options, Receives RSUs

What Happened

  • John Sakys, Chief Financial Officer of Mesa Laboratories (MLAB), exercised stock options to acquire 2,717 shares on 2026-06-15 by paying $104.08 per share (total cash paid $282,785). The same filing also shows the expiration of a short derivative position covering 3,951 shares and a related conversion/disposition line for 2,717 derivative units at $0.00. In addition, Mr. Sakys was granted 8,416 restricted stock units (RSUs) on that date (these RSUs are awarded, not immediately tradable shares).
  • The exercise is an acquisition (insider paid strike price to get shares); the expired/disposed derivative items are routine derivative adjustments and the RSU grant is a standard equity award.

Key Details

  • Transaction date: 2026-06-15 (Form 4 filed 2026-06-16 — appears timely).
  • Option exercise: 2,717 shares acquired at $104.08 each; total cash outlay reported $282,785.
  • Expiration: 3,951 shares — expiration of a short derivative position (no cash reported).
  • Related conversion/disposition: 2,717 derivative units reported disposed at $0.00 (derivative line item in the filing).
  • Award: 8,416 RSUs granted at $0.00 (each RSU represents a right to one share when vested).
  • Shares owned following transactions: not specified in the provided summary of the filing.
  • Notable footnotes:
    • F1: NSOs (nonqualified stock options) vested 1/3 on each anniversary of the June 15, 2020 grant.
    • F2: Each RSU converts to one share upon settlement.
    • F3 / F5: RSU vesting schedules: one series vests 1/3 on June 15, 2026 and yearly thereafter; another vests 34% on June 15, 2027, then 33% on June 8, 2028 and 33% on June 8, 2029.
    • F6: 50 shares are held in custodial accounts for Mr. Sakys’ children.
  • No indication in the filing of an immediate open-market sale of the exercised shares.

Context

  • Exercise of options (code M) means Mr. Sakys paid the option strike price to receive common shares. A separate derivative expiration (code E) indicates a derivative position lapsed. RSU grants (code A) are compensation awards that vest over time and do not necessarily reflect immediate market activity.
  • These filings are factual disclosures of equity-related transactions by an executive; they do not, by themselves, explain the insider’s motives. Purchases/exercises show the insider acquired stock; awards and expirations are common parts of executive compensation and option lifecycle.

Insider Transaction Report

Form 4
Period: 2026-06-15
Transactions
  • Exercise/Conversion

    Common Stock

    2026-06-15$104.08/sh+2,717$282,78517,761 total
  • Expiration

    Non Qualified Stock Option

    [F1]
    2026-06-153,95115,755 total
    Exercise: $226.72From: 2021-06-15Exp: 2026-06-15Common Stock (3,951 underlying)
  • Exercise/Conversion

    Restricted Stock Units 8

    [F2][F3][F4]
    2026-06-152,7175,416 total
    Common Stock (2,717 underlying)
  • Award

    Restricted Stock Units - 9

    [F2][F5][F4]
    2026-06-15+8,4168,416 total
    From: 2027-06-15Common Stock (8,416 underlying)
Holdings
  • Common Stock

    [F6]
    (indirect: Custodian)
    50
Footnotes (6)
  • [F1]NSOs that vested 1/3 on each anniversary date of the June 15, 2020 grant date
  • [F2]Each RSU represents a contingent right to receive one share of the Issuer's common stock
  • [F3]RSUs that vest 1/3 on June 15, 2026 and each of the next two anniversary dates
  • [F4]Not Applicable
  • [F5]RSUs that vest 34% on June 15, 2027, 33% on June 8, 2028 and 33% on June 8, 2029
  • [F6]Consists of 50 shares held by children on which Mr. Sakys is custodian
Signature
John Sakys|2026-06-16

Documents

1 file
  • 4
    primary_doc.xmlPrimary

    PRIMARY DOCUMENT