MESA LABORATORIES INC /CO/
MLAB- Exchange
- Nasdaq
- Industry
- Industrial Instruments For Measurement, Display, and Control
- SEC CIK
- 0000724004
Insider trades, last 90 days
2 buys · 1 sell
- Bought $902.41K
- Sold $800.09K
- Open-market purchases (P) and sales (S), counted by Form 4 filing.
13F holders, Q2 2026
159
- −2 vs. Q1 2026
- Total value $500.78M
Superinvestors holding MLAB
0
- None of the superinvestors held MLAB at the end of Q2 2026.
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by MLAB insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Aug 17, 202612:18 PM ET | Aug 13, 2026 | Sullivan John JamesDirector | SSaleCommon Stock | −7.09K | $112.80 | −$800.09K | 17.83K | −28.5% | SEC |
| Aug 17, 202611:49 AM ET | Aug 13, 2026 | Kadia SiddharthaPresident and CEO | PPurchaseCommon Stock | +7.09K | $112.80 | +$800.09K | 7.09K | New position | SEC |
| Aug 17, 202611:27 AM ET | Aug 13, 2026 | Tripeny R TonyDirector | PPurchaseCommon Stock | +900 | $113.69 | +$102.32K | 6.3K | +16.7% | SEC |
| Jun 23, 2026 | Jun 22, 2026 | Crennen Lyndsey ElizabethCAO | SSaleCommon Stock | −442 | $89.50 | −$39.56K | 2.02K | −18.0% | SEC |
| Jun 23, 2026 | Jun 22, 2026 | Archbold Brian DavidSVP Operations | SSaleCommon Stock | −2.52K | $89.50 | −$225.18K | 6.38K | −28.3% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in MLAB at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Long Path Partners LP | 477,126 | $47.5M | 20.24% | +71,543+17.6% | Added |
| BlackRock, Inc. | 440,552 | $43.86M | 0.00% | +46,701+11.9% | Added |
| Boston Partners | 265,149 | $26.39M | 0.02% | −3,562−1.3% | Reduced |
| VANGUARD CAPITAL MANAGEMENT LLC | 237,457 | $23.64M | 0.00% | +4,814+2.1% | Added |
| AQR CAPITAL MANAGEMENT LLC | 203,739 | $20.28M | 0.01% | +33,177+19.5% | Added |