# Mesa Laboratories Inc /Co/ (MLAB) insider trading, Q3 2026

Canonical: https://sec-api.dev/insider-trading/mlab

> 9 non-derivative transactions: 2 purchases ($902K), 1 sale ($800K). CIK 724004.

| Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2026-08-15 | Sullivan John James | Director | M | 2784.0 | 0.0 | 20618.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000086/0000724004-26-000086-index.htm |
| 2026-08-15 | Tripeny R Tony | Director | M | 2784.0 | 0.0 | 9082.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000087/0000724004-26-000087-index.htm |
| 2026-08-15 | Hall Shannon | Director | M | 2784.0 | 0.0 | 6973.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000088/0000724004-26-000088-index.htm |
| 2026-08-15 | Ladiwala Shiraz Shabanali | Director | M | 3810.0 | 0.0 | 12333.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000089/0000724004-26-000089-index.htm |
| 2026-08-15 | Alltoft Jennifer Sadie | Director | M | 2784.0 | 0.0 | 7662.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000090/0000724004-26-000090-index.htm |
| 2026-08-15 | Capone Mark Christopher | Director | M | 2784.0 | 0.0 | 6213.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000091/0000724004-26-000091-index.htm |
| 2026-08-13 | Tripeny R Tony | Director | P | 900.0 | 113.69 | 6298.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000083/0000724004-26-000083-index.htm |
| 2026-08-13 | Kadia Siddhartha | Officer | P | 7093.0 | 112.8 | 7093.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000084/0000724004-26-000084-index.htm |
| 2026-08-13 | Sullivan John James | Director | S | 7093.0 | 112.8 | 17834.0 | https://www.sec.gov/Archives/edgar/data/724004/000072400426000085/0000724004-26-000085-index.htm |

Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets

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