It has been a mixed year for Mesa Laboratories Inc insiders: $1.4 million bought by four people and $1.6 million sold by four, so more selling than buying overall.
The largest purchase came from Kadia Siddhartha (CEO), about $800,000. Notably, at least one C-suite executive was among the buyers.
Last full quarter: net buying by insiders. Insiders bought in 2 of the last 7 full quarters. Big money check: 159 institutions held MLAB as of Q2 2026, and more funds bought than sold.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Aug 17, 2026 | Sullivan John James | Director | Sell | 7,093 | $112.80 | $800K | SEC |
| Aug 17, 2026 | Kadia Siddhartha | CEO | Buy | 7,093 | $112.80 | $800K | SEC |
| Aug 17, 2026 | Tripeny R Tony | Director | Buy | 900 | $113.69 | $102K | SEC |
| Jun 23, 2026 | Crennen Lyndsey Elizabeth | Executive Officer | Sell | 442 | $89.50 | $40K | SEC |
| Jun 23, 2026 | Archbold Brian David | Executive Officer | Sell | 2,516 | $89.50 | $225K | SEC |
| Jun 23, 2026 | Sakys John | CFO | Sell | 2,827 | $89.50 | $253K | SEC |
| Jun 17, 2026 | Archbold Brian David | Executive Officer | Sell | 1,151 | $101.27 | $117K | SEC |
| Jun 17, 2026 | Crennen Lyndsey Elizabeth | Executive Officer | Sell | 118 | $101.27 | $12K | SEC |
| Jun 17, 2026 | Sakys John | CFO | Sell | 1,223 | $101.27 | $124K | SEC |
| Mar 10, 2026 | Ladiwala Shiraz Shabanali | Director | Buy | 3,500 | $72.23 | $253K | SEC |
| Mar 10, 2026 | Capone Mark Christopher | Director | Buy | 1,301 | $76.35 | $99K | SEC |
| Mar 10, 2026 | Tripeny R Tony | Director | Buy | 1,315 | $76.00 | $100K | SEC |
| Jun 18, 2025 | Owens Gary M | CEO | Sell | 1,939 | $97.12 | $188K | SEC |
| Jun 18, 2025 | Archbold Brian David | Executive Officer | Sell | 472 | $97.12 | $46K | SEC |
| Jun 18, 2025 | Sakys John | CFO | Sell | 642 | $97.12 | $62K | SEC |
In the last 12 months Mesa Laboratories Inc insiders made open-market purchases worth about $1.4 million and sales worth about $1.6 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in MLAB was filed on 2026-08-17.
159 investment managers reported holding MLAB in SEC Form 13F filings for Q2 2026.
No congressional trades in MLAB were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).