Siddhartha Kadia

Insider · President and CEO · MLAB

Siddhartha Kadia files insider transactions with the SEC as a president and ceo of Mesa Laboratories Inc /co/ (MLAB). We hold 1 disclosed purchase or sale filed since 16 April 2013, 1 of them in the last 90 days.

Files forMLAB
Disclosed buys and sells1 in all, 1 in the last 90 days
Last disclosure17 August 2026

Positions held

7 posts we hold — a term names its own dates; a run of filings only says when they filed

Filed 14 April 2026 — 13 August 2026President and CEO · Mesa Laboratories Inc /co/ (MLAB)3 Form 4 lines · source: SEC Form 4
Filed 24 August 2023 — 2 October 2023Chief Executive Officer · PhenomeX (CELL)4 Form 4 lines · source: SEC Form 4
Filed 1 February 2021 — 1 September 2023Director · Nuvasive (NUVA)10 Form 4 lines · source: SEC Form 4
Filed 7 September 2021 — 3 March 2023Chief Executive Officer · Berkeley Lights (BLI)11 Form 4 lines · source: SEC Form 4
Filed 16 June 2022 — 16 June 2022Director · IsoPlexis (ISO)1 Form 4 line · source: SEC Form 4
Filed 17 December 2014 — 29 April 2016Other role · Newport (NEWP)4 Form 4 lines · source: SEC Form 4
Filed 29 March 2013 — 17 February 2015Director · Volcano (VOLC)19 Form 4 lines · source: SEC Form 4

Everything they disclosed

52 entries, newest first — one per disclosure report, one per Form 4 line

▲ bought on the open market 7,093 shares of Mesa Laboratories Inc /co/SEC Form 417 August 2026Common Stock · traded 13 August 2026 · filed 17 August 2026
was granted 35,236 shares of Mesa Laboratories Inc /co/ (a derivative holding)SEC Form 419 May 2026Restricted Stock Units - 1 · traded 14 April 2026 · filed 19 May 2026
was granted 34,807 shares of Mesa Laboratories Inc /co/ (a derivative holding)SEC Form 424 April 2026Restricted Stock Units - 1 · traded 14 April 2026 · filed 24 April 2026
returned to the issuer 595,395 shares of Bruker Cellular AnalysisSEC Form 43 October 2023Common Stock · traded 2 October 2023 · filed 3 October 2023
returned to the issuer 645,294 shares of Bruker Cellular AnalysisSEC Form 43 October 2023Common Stock · traded 2 October 2023 · filed 3 October 2023
returned to the issuer 3,788 shares of Nuvasive (a derivative holding)SEC Form 45 September 2023Restricted Stock Unit · traded 1 September 2023 · filed 5 September 2023
returned to the issuer 4,816 shares of Nuvasive (a derivative holding)SEC Form 45 September 2023Restricted Stock Unit · traded 1 September 2023 · filed 5 September 2023
returned to the issuer 3,739 shares of NuvasiveSEC Form 45 September 2023Common Stock, par value $0.001 per share · traded 1 September 2023 · filed 5 September 2023
gave away 645,294 shares of PhenomeXSEC Form 428 August 2023Common Stock · traded 24 August 2023 · filed 28 August 2023
gave away 645,294 shares of PhenomeXSEC Form 428 August 2023Common Stock · traded 24 August 2023 · filed 28 August 2023
was granted 4,816 shares of Nuvasive (a derivative holding)SEC Form 412 June 2023RSUs · traded 9 June 2023 · filed 12 June 2023
was granted 317,029 shares of Berkeley LightsSEC Form 47 March 2023Common Stock · traded 3 March 2023 · filed 7 March 2023
had shares withheld for tax on 36,975 shares of Berkeley LightsSEC Form 413 December 2022Common Stock · traded 9 December 2022 · filed 13 December 2022
had shares withheld for tax on 150 shares of Berkeley LightsSEC Form 49 December 2022Common Stock · traded 7 December 2022 · filed 9 December 2022
had shares withheld for tax on 29,200 shares of Berkeley LightsSEC Form 413 September 2022Common Stock · traded 9 September 2022 · filed 13 September 2022
had shares withheld for tax on 561 shares of Berkeley LightsSEC Form 49 September 2022Common Stock · traded 7 September 2022 · filed 9 September 2022
was granted 89,047 shares of IsoPlexis (a derivative holding)SEC Form 421 June 2022Stock Option · traded 16 June 2022 · filed 21 June 2022
had shares withheld for tax on 31,531 shares of Berkeley LightsSEC Form 413 June 2022Common Stock · traded 9 June 2022 · filed 13 June 2022
exercised options over 1,037 shares of Nuvasive (a derivative holding)SEC Form 41 June 2022RSUs · traded 28 May 2022 · filed 1 June 2022
exercised options over 2,702 shares of Nuvasive (a derivative holding)SEC Form 41 June 2022RSUs · traded 28 May 2022 · filed 1 June 2022
exercised options over 3,739 shares of NuvasiveSEC Form 41 June 2022Common Stock · traded 28 May 2022 · filed 1 June 2022
was granted 3,788 shares of Nuvasive (a derivative holding)SEC Form 413 May 2022RSUs · traded 11 May 2022 · filed 13 May 2022
was granted 339,059 shares of Berkeley Lights (a derivative holding)SEC Form 422 March 2022Stock Option (Right to Buy) · traded 10 March 2022 · filed 22 March 2022
was granted 678,118 shares of Berkeley Lights (a derivative holding)SEC Form 422 March 2022Stock Option (Right to Buy) · traded 10 March 2022 · filed 22 March 2022
was granted 1,017,177 shares of Berkeley LightsSEC Form 422 March 2022Common Stock · traded 10 March 2022 · filed 22 March 2022
was granted 4,900 shares of Berkeley Lights (a derivative holding)SEC Form 49 September 2021Stock Option (Right to Buy) · traded 7 September 2021 · filed 9 September 2021
was granted 4,900 shares of Berkeley LightsSEC Form 49 September 2021Common Stock · traded 7 September 2021 · filed 9 September 2021
was granted 2,702 shares of Nuvasive (a derivative holding)SEC Form 420 May 2021RSUs · traded 18 May 2021 · filed 20 May 2021
was granted 1,037 shares of Nuvasive (a derivative holding)SEC Form 43 February 2021RSUs · traded 1 February 2021 · filed 3 February 2021
returned to the issuer 15,642 shares of NewportSEC Form 42 May 2016Common Stock · traded 29 April 2016 · filed 2 May 2016
was granted 6,280 shares of NewportSEC Form 421 May 2015Common Stock · traded 19 May 2015 · filed 21 May 2015
returned to the issuer 5,488 shares of VolcanoSEC Form 419 February 2015Common Stock · traded 17 February 2015 · filed 19 February 2015
returned to the issuer 10,840 shares of Volcano (a derivative holding)SEC Form 419 February 2015Non-Qualified Stock Option (Right to Buy) · traded 17 February 2015 · filed 19 February 2015
returned to the issuer 10,049 shares of Volcano (a derivative holding)SEC Form 419 February 2015Non-Qualified Stock Option (Right to Buy) · traded 17 February 2015 · filed 19 February 2015
returned to the issuer 2,620 shares of Volcano (a derivative holding)SEC Form 419 February 2015Restricted Stock Units · traded 17 February 2015 · filed 19 February 2015
returned to the issuer 3,575 shares of Volcano (a derivative holding)SEC Form 419 February 2015Restricted Stock Units · traded 17 February 2015 · filed 19 February 2015
was granted 6,597 shares of NewportSEC Form 419 December 2014Common Stock · traded 17 December 2014 · filed 19 December 2014
was granted 2,765 shares of NewportSEC Form 419 December 2014Common Stock · traded 17 December 2014 · filed 19 December 2014
was granted 10,049 shares of Volcano (a derivative holding)SEC Form 45 June 2014Non-Qualified Stock Option (Right to Buy) · traded 3 June 2014 · filed 5 June 2014
was granted 3,575 shares of Volcano (a derivative holding)SEC Form 45 June 2014Restricted Stock Units · traded 3 June 2014 · filed 5 June 2014
exercised options over 3,711 shares of VolcanoSEC Form 419 May 2014Common Stock · traded 15 May 2014 · filed 19 May 2014
exercised options over 3,711 shares of Volcano (a derivative holding)SEC Form 419 May 2014Restricted Stock Units · traded 15 May 2014 · filed 19 May 2014
exercised options over 1,310 shares of VolcanoSEC Form 431 March 2014Common Stock · traded 28 March 2014 · filed 31 March 2014
exercised options over 1,310 shares of Volcano (a derivative holding)SEC Form 431 March 2014Restricted Stock Units · traded 28 March 2014 · filed 31 March 2014
exercised options over 467 shares of Volcano (a derivative holding)SEC Form 417 May 2013Restricted Stock Units · traded 15 May 2013 · filed 17 May 2013
was granted 10,840 shares of Volcano (a derivative holding)SEC Form 417 May 2013Non-Qualified Stock Option (Right to Buy) · traded 15 May 2013 · filed 17 May 2013
was granted 3,711 shares of Volcano (a derivative holding)SEC Form 417 May 2013Restricted Stock Units · traded 15 May 2013 · filed 17 May 2013
exercised options over 467 shares of VolcanoSEC Form 417 May 2013Common Stock · traded 15 May 2013 · filed 17 May 2013
was granted 12,341 shares of Volcano (a derivative holding)SEC Form 416 April 2013Non-Qualified Stock Option (Right to Buy) · traded 29 March 2013 · filed 16 April 2013
was granted 1,469 shares of Volcano (a derivative holding)SEC Form 416 April 2013Non-Qualified Stock Option (Right to Buy) · traded 29 March 2013 · filed 16 April 2013
was granted 3,930 shares of Volcano (a derivative holding)SEC Form 416 April 2013Restricted Stock Units · traded 29 March 2013 · filed 16 April 2013
was granted 467 shares of Volcano (a derivative holding)SEC Form 416 April 2013Restricted Stock Units · traded 29 March 2013 · filed 16 April 2013

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.