AI summary pending
View Full Filing (SEC EDGAR)Mesa Laboratories Inc
$122.48-4.1%
+$70.1M
Net Activity
+5.46% total shares
Institutions Holding
160
Popularity Rank
#3540
Avg Weight
0.17%
Total Value
$506.1M
Market Cap
$681.6M
160 institutions currently hold MLAB, with 99 net buyers and 55 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
55
Net Buying Institutions
99
Top 5 by Value
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Across its top 20 institutional holders, MLAB's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 7/100, avg. turnover score 32/100).
MLAB ranks #3540 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
MLAB is a disclosed holding of Cliff Asness (AQR Capital Management), one of the tracked superinvestors on AlphaSMO — it makes up 0.0% of that fund's own 13F portfolio.
MLAB is a top-conviction position for Long Path Partners LP — at 20.2% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
Wasatch Advisors LP has added to its MLAB position for two straight quarters, increasing it by $45.8M to reach $50.3M today.
Essential Partners LLC has trimmed its MLAB position for two straight quarters, cutting it by $4.7K while still holding $6.2K.
MLAB is down 4.1% today, but institutions show net buying of $70.1M this quarter — a divergence between today's price move and the underlying institutional flow.
MLAB posted net income of $4.8M over the trailing twelve months, and currently trades at a P/E of 142.0.
+$94.5M
Total Buy Value
$54.9M
Total Sell Value
99
Net Buyers
55
Net Sellers
MLAB
Q2 2026
Top 5 Institutional Movers
-$20.9M
+$11.6M
+$9.0M
+$8.3M
MLAB does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
2
Filings (90d)
$5.05M
Total Est. Value
40K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Owens Gary M | 2026-08-27 | $2.60M |
| Owens Gary M | 2026-08-21 | $2.45M |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Long Path Smaller Companies Fund, LP | 13G/A | 2026-07-07 | 8.6% |
4
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)Mesa Laboratories (ticker: MLAB) announced that on July 30, 2026, its board approved an amended and restated Code of Ethics and Business Conduct, effective immediately. The updated code modernizes the company's policies, with specific revisions around external communications and social media, plus other administrative, compliance, and procedural clarifications. The full code is attached as Exhibit 14.1 to the 8-K. This appears to be a routine governance update rather than a financial or leadership event.
View Full Filing (SEC EDGAR)59064R109, 590479135
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,255
Total reported value
$346.5B
Held by 4255 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,146
Total reported value
$257.5B
Held by 4146 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,137
Total reported value
$279.7B
Held by 4137 institutions — one of the most-tracked stocks on AlphaSMO
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