MLAB
Mesa Laboratories, Inc.
NASDAQ · Technology · Hardware, Equipment & Parts · US
$127.78
−0.58%2
Insider buys (3m)
7
Insider sells (3m)
-$667.8K
Net value (3m)
+22.8%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Aug 17, 2026 | Kadia Siddhartha · officer: President and CEO | Purchase | 7,093 | $113 |
| Aug 17, 2026 | Sullivan John James · director | M-Exempt | 2,784 | $0.00 |
| Aug 17, 2026 | Hall Shannon · director | M-Exempt | 2,784 | $0.00 |
| Aug 17, 2026 | Alltoft Jennifer Sadie · director | M-Exempt | 2,784 | $0.00 |
| Aug 17, 2026 | Tripeny R Tony · director | Purchase | 900 | $114 |
| Aug 17, 2026 | Sullivan John James · director | Sale | 7,093 | $113 |
| Aug 17, 2026 | Tripeny R Tony · director | M-Exempt | 2,784 | $0.00 |
| Aug 17, 2026 | Capone Mark Christopher · director | M-Exempt | 2,784 | $0.00 |
| Aug 17, 2026 | Ladiwala Shiraz Shabanali · director | M-Exempt | 3,810 | $0.00 |
| Jun 23, 2026 | Sakys John · officer: CFO | A-Award | 2,282 | $95 |
| Jun 23, 2026 | Sakys John · officer: CFO | M-Exempt | 2,756 | $95 |
| Jun 23, 2026 | Crennen Lyndsey Elizabeth · officer: CAO | M-Exempt | 233 | $95 |
| Jun 23, 2026 | Archbold Brian David · officer: SVP Operations | Sale | 2,516 | $90 |
| Jun 23, 2026 | Archbold Brian David · officer: SVP Operations | M-Exempt | 844 | $95 |
| Jun 23, 2026 | Crennen Lyndsey Elizabeth · officer: CAO | M-Exempt | 125 | $95 |
| Jun 23, 2026 | Crennen Lyndsey Elizabeth · officer: CAO | Sale | 442 | $90 |
| Jun 23, 2026 | Sakys John · officer: CFO | Sale | 2,827 | $90 |
| Jun 23, 2026 | Sakys John · officer: CFO | M-Exempt | 1,036 | $95 |
| Jun 23, 2026 | Crennen Lyndsey Elizabeth · officer: CAO | M-Exempt | 368 | $95 |
| Jun 23, 2026 | Crennen Lyndsey Elizabeth · officer: CAO | A-Award | 263 | $95 |
| Jun 23, 2026 | Archbold Brian David · officer: SVP Operations | A-Award | 1,859 | $95 |
| Jun 23, 2026 | Archbold Brian David · officer: SVP Operations | M-Exempt | 2,480 | $95 |
| Jun 17, 2026 | Archbold Brian David · officer: SVP Operations | Sale | 1,151 | $101 |
| Jun 17, 2026 | Sakys John · officer: CFO | Sale | 1,223 | $101 |
| Jun 17, 2026 | Crennen Lyndsey Elizabeth · officer: CAO | Sale | 118 | $101 |
| Jun 16, 2026 | Archbold Brian David · officer: SVP Operations | A-Award | 4,328 | $0.00 |
| Jun 16, 2026 | Archbold Brian David · officer: SVP Operations | M-Exempt | 2,454 | $104 |
| Jun 16, 2026 | Sakys John · officer: CFO | A-Award | 8,416 | $0.00 |
| Jun 16, 2026 | Sakys John · officer: CFO | M-Exempt | 2,717 | $104 |
| May 19, 2026 | Kadia Siddhartha · officer: President and CEO | A-Award | 35,236 | $0.00 |
Institutional positioning
13F filings over the trailing two quarters
New 46Increased 133Reduced 84Sold out 18
| Filer | Action | Shares | Filed |
|---|---|---|---|
| Long Path Partners LP | Increased | 477,126 | Jul 31, 2026 |
| BlackRock, Inc. | Increased | 440,552 | Aug 7, 2026 |
| LONG PATH PARTNERS LP | Increased | 405,583 | May 14, 2026 |
| BLACKROCK, INC. | Reduced | 393,851 | May 13, 2026 |
| BOSTON PARTNERS | Increased | 268,711 | May 11, 2026 |
| Boston Partners | Reduced | 265,149 | Aug 4, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 237,457 | Aug 13, 2026 |
| SELECT EQUITY GROUP, L.P. | Increased | 235,885 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 232,643 | May 15, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 203,739 | Aug 14, 2026 |
| RANGER INVESTMENT MANAGEMENT, L.P. | Reduced | 202,903 | May 15, 2026 |
| Ranger Investment Management, L.P. | Reduced | 173,988 | Aug 13, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 170,562 | May 15, 2026 |
| MORGAN STANLEY | Reduced | 162,116 | May 15, 2026 |
| ROYCE & ASSOCIATES LP | Increased | 161,229 | May 12, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Aug 17, 2026