Security key
59064R109
MESA LABORATORIES INC /CO/ - Common Stock SH (MLAB)
CUSIP: 59064R109
Q3 2026 13F Holders as of 30 Sep 2026
- Security type / class
- Equity / Common Stock SH
- Total 13F shares
- 740
- Total 13F value
- $96,156
- Share change
- -42,530
- SEC-reported price per share
- $129.94
- Number of holders
- 4
- Value change
- -$4,229,065
- Number of buys
- 1
- Number of sells
- 3
- Shares outstanding
- 5,610,565
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
4
Top holders
4
MLAB full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q2 2026
MESA LABORATORIES INC /CO/ SEC filings
MESA LABORATORIES INC /CO/ company facts
Broader feeds
Reporting periods
Holder history for CUSIP 59064R109
Recent filing periods:
Ownership snapshot
Top reported holders of MLAB - MESA LABORATORIES INC /CO/ - Common Stock SH (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Conestoga Capital Advisor...
Disclosed value leader
Conestoga Capital Advisor...
Comparable rows
15/15
Latest evidence
30 Sep 2026
13D/G
13F
Lead comparable stake: 11%
13D/G row: Conestoga Capital Advisors, LLC
Showing 1-6 of 15 holder rows.
Quick read
Conestoga Capital Advisors, LLC leads the comparable SEC ownership view at 11%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Conestoga Capital Advisors, LLC's linked filing trail.
Comparable ownership
Top 5
Conestoga Capital Advisors, LLC
11%
Long Path Smaller Companies Fund, LP
8.6%
WASATCH ADVISORS LP
6.9%
BlackRock, Inc.
6.9%
ROYCE & ASSOCIATES LP
5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Conestoga Capital Advisors, LLC |
13D/G
Conestoga Capital Advisors
|
11%
|
$71,997,569
618,111 shares
|
$0 | 31 Dec 2024 |
| Long Path Smaller Companies Fund, LP |
13D/G
|
8.6%
|
$47,497,893
477,126 shares
|
+$7,122,106 | 30 Jun 2026 |
| WASATCH ADVISORS LP |
13D/G
13F
Company
|
6.9%
|
$50,303,775
387,129 shares
|
$0 | 30 Sep 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
6.9%
from 13D/G
|
$43,856,952
440,552 shares
|
— | 30 Jun 2026 |
| ROYCE & ASSOCIATES LP |
13D/G
13F
Company
|
5%
|
$31,579,825
271,118 shares
|
-$1,874,047 | 31 Mar 2025 |
| Long Path Partners LP |
13F
Company
|
8.5%
|
$47,497,893
477,126 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
4
Shares
740
Rows available
4
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
159
Q3 2026 holders
4
Holder diff
-155
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend