Security key
59064R109
MESA LABORATORIES INC /CO/ - Common Stock (MLAB)
CUSIP: 59064R109
Q4 2021 13F Holders as of 31 Dec 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 4,791,533
- Total 13F value
- $1,570,225,457
- Share change
- +17,906
- SEC-reported price per share
- $328.09
- Number of holders
- 173
- Value change
- +$6,590,466
- Number of buys
- 83
- Number of sells
- 67
- Shares outstanding
- 5,615,975
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2021
Institutions
173
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 (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
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
0/15
Latest evidence
30 Sep 2021
13F
Highest disclosed value: $267,229,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. has the largest disclosed position value at $267.23M.
0 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 BlackRock Finance, Inc.'s linked filing trail.
Disclosed position value
Top 5
BlackRock Finance, Inc.
$267.23M
Conestoga Capital Advisors, LLC
$155.6M
ROYCE & ASSOCIATES LP
$103.17M
VANGUARD GROUP INC
$97.6M
Invesco Ltd.
$75.24M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$267,229,000
883,814 shares
|
— | 30 Sep 2021 |
| Conestoga Capital Advisors, LLC |
13F
Company
|
—
denominator unverified
|
$155,601,000
514,623 shares
|
— | 30 Sep 2021 |
| ROYCE & ASSOCIATES LP |
13F
Company
|
—
denominator unverified
|
$103,167,000
341,205 shares
|
— | 30 Sep 2021 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$97,597,000
322,783 shares
|
— | 30 Sep 2021 |
| Invesco Ltd. |
13F
Company
|
—
denominator unverified
|
$75,237,000
248,831 shares
|
— | 30 Sep 2021 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$55,261,000
182,767 shares
|
— | 30 Sep 2021 |
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 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
173
Shares
4,791,533
Rows available
173
| 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 2021 vs Q2 2026 Across Filers
Q2 2026 holders
159
Q4 2021 holders
173
Holder diff
14
| Investor | Q2 2026 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q2 2026 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend