Security key
59064R109
MESA LABORATORIES INC /CO/ - Common Stock, no par value (MLAB)
CUSIP: 59064R109
Q4 2024 13F Holders as of 31 Dec 2024
- Security type / class
- Equity / Common Stock, no par value
- Total 13F shares
- 5,103,701
- Total 13F value
- $673,040,010
- Share change
- +203,996
- SEC-reported price per share
- $131.87
- Number of holders
- 156
- Value change
- +$27,103,138
- Number of buys
- 67
- Number of sells
- 69
- Shares outstanding
- 5,547,977
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2024
Institutions
156
Top holders
10
MLAB full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
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, no par value (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
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
31 Dec 2024
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%
BlackRock, Inc.
15%
VANGUARD GROUP INC
6.8%
ROYCE & ASSOCIATES LP
6.3%
MORGAN STANLEY
4.5%
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
13F
Conestoga Capital Advisors · Company
|
11%
|
$71,997,569
618,111 shares
|
$0 | 31 Dec 2024 |
| BlackRock, Inc. |
13F
Company
|
15%
|
$108,669,578
836,821 shares
|
— | 30 Sep 2024 |
| VANGUARD GROUP INC |
13F
Company
|
6.8%
|
$49,032,798
377,582 shares
|
— | 30 Sep 2024 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
6.3%
|
$45,080,250
347,145 shares
|
— | 30 Sep 2024 |
| MORGAN STANLEY |
13F
Company
|
4.5%
|
$32,380,446
249,348 shares
|
— | 30 Sep 2024 |
| Ranger Investment Management, L.P. |
13F
Company
|
4.3%
|
$30,931,353
238,190 shares
|
— | 30 Sep 2024 |
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 Q4 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
156
Shares
5,103,701
Rows available
156
| 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 Q4 2024 vs Q1 2026 Across Filers
Q1 2026 holders
161
Q4 2024 holders
156
Holder diff
-5
| Investor | Q1 2026 Shares | Q4 2024 Shares | Share Diff | Share Chg % | Q1 2026 value | Q4 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend