What does CUSIP 59064R109 represent in this 13F holders report?

CUSIP 59064R109 is the security identifier for MLAB - MESA LABORATORIES INC /CO/ - Common Stock, no par value used to aggregate holder disclosures.

How many institutions held MLAB - MESA LABORATORIES INC /CO/ - Common Stock, no par value in Q3 2021?

171 institutional investors reported MLAB - MESA LABORATORIES INC /CO/ - Common Stock, no par value for Q3 2021. Use the holders table for investor-level position and value details.

- Common Stock, no par value (MLAB)

CUSIP: 59064R109

Q3 2021 13F Holders as of 30 Sep 2021

Type / Class: Equity / Common Stock, no par value
Shares outstanding: 5,555,932
Total 13F shares: 4,766,186
Share change: +55,226
Total reported value: $1,441,093,898
Price per share: $302.36
Number of holders: 171
Value change: +$17,124,814
Number of buys: 90
Number of sells: 59

Quarterly Holders Quick Answers

What is CUSIP 59064R109?
CUSIP 59064R109 identifies MLAB - MESA LABORATORIES INC /CO/ - Common Stock, no par value in SEC institutional holdings data.

Need full ownership history?
Open the full security ownership history page.

Next holder-history checks

These links keep the next click tied to holder verification, nearby quarters, or outside-13F ownership context.

Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q4 2021
Previous quarter: Q2 2021

Recent filing periods for CUSIP 59064R109:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders 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. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock Finance, Inc.	13F	Company	17%	932,272	$252,804,000	—	30 Jun 2021	13F
Conestoga Capital Advisors, LLC	13F	Company	9.2%	508,693	$137,942,000	—	30 Jun 2021	13F
ROYCE & ASSOCIATES LP	13F	Company	6%	332,746	$90,231,000	—	30 Jun 2021	13F
VANGUARD GROUP INC	13F	Company	5.7%	316,045	$85,701,000	—	30 Jun 2021	13F
Invesco Ltd.	13F	Company	4.7%	258,416	$70,076,000	—	30 Jun 2021	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	3.4%	191,424	$51,908,000	—	30 Jun 2021	13F
STATE STREET CORP	13F	Company	3.4%	187,922	$50,959,000	—	30 Jun 2021	13F
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	13F	Company	2.8%	156,366	$42,402,000	—	30 Jun 2021	13F
Ranger Investment Management, L.P.	13F	Company	2.7%	147,678	$40,046,000	—	30 Jun 2021	13F
ATLANTA CAPITAL MANAGEMENT CO L L C	13F	Company	2.4%	134,155	$36,379,000	—	30 Jun 2021	13F
SCHRODER INVESTMENT MANAGEMENT GROUP	13F	Company	2.2%	124,189	$33,676,000	—	30 Jun 2021	13F
NORTHERN TRUST CORP	13F	Company	1.6%	89,144	$24,173,000	—	30 Jun 2021	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	1.5%	85,444	$23,169,000	—	30 Jun 2021	13F
GLENMEDE TRUST CO NA	13F	Company	1.3%	74,758	$20,271,000	—	30 Jun 2021	13F
EAGLE ASSET MANAGEMENT INC	13F	Company	1.3%	70,506	$19,119,000	—	30 Jun 2021	13F
DF DENT & CO INC	13F	Company	1%	56,263	$15,257,000	—	30 Jun 2021	13F
Bank of New York Mellon Corp	13F	Company	0.96%	53,310	$14,456,000	—	30 Jun 2021	13F
FRED ALGER MANAGEMENT, LLC	13F	Company	0.92%	51,065	$13,847,000	—	30 Jun 2021	13F
Russell Investments Group, Ltd.	13F	Company	0.86%	47,990	$13,012,000	—	30 Jun 2021	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.83%	46,150	$12,513,000	—	30 Jun 2021	13F
COMERICA BANK	13F	Company	0.74%	41,173	$11,250,000	—	30 Jun 2021	13F
MOODY ALDRICH PARTNERS LLC	13F	Company	0.69%	38,501	$10,440,000	—	30 Jun 2021	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.68%	37,587	$10,192,000	—	30 Jun 2021	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.61%	33,776	$9,159,000	—	30 Jun 2021	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.6%	33,573	$9,104,000	—	30 Jun 2021	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.54%	29,926	$8,115,000	—	30 Jun 2021	13F
PUTNAM INVESTMENTS LLC	13F	Company	0.49%	26,990	$7,319,000	—	30 Jun 2021	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.44%	24,312	$6,593,000	—	30 Jun 2021	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.43%	23,700	$6,427,000	—	30 Jun 2021	13F
MORGAN STANLEY	13F	Company	0.42%	23,187	$6,288,000	—	30 Jun 2021	13F
ROYAL BANK OF CANADA	13F	Company	0.4%	22,059	$5,981,000	—	30 Jun 2021	13F
Nuveen Asset Management, LLC	13F	Company	0.37%	20,382	$5,527,000	—	30 Jun 2021	13F
JPMORGAN CHASE & CO	13F	Company	0.36%	19,818	$5,374,000	—	30 Jun 2021	13F
RAYMOND JAMES & ASSOCIATES	13F	Company	0.34%	18,983	$5,148,000	—	30 Jun 2021	13F
MARSHALL WACE, LLP	13F	Company	0.31%	17,378	$4,712,000	—	30 Jun 2021	13F
Raymond James Financial Services Advisors, Inc.	13F	Company	0.29%	16,004	$4,340,000	—	30 Jun 2021	13F
RHUMBLINE ADVISERS	13F	Company	0.27%	15,119	$4,100,000	—	30 Jun 2021	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.26%	14,474	$3,925,000	—	30 Jun 2021	13F
Motley Fool Asset Management LLC	13F	Company	0.26%	14,240	$3,861,000	—	30 Jun 2021	13F
KING LUTHER CAPITAL MANAGEMENT CORP	13F	Company	0.25%	13,891	$3,767,000	—	30 Jun 2021	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.21%	11,547	$3,131,000	—	30 Jun 2021	13F
Swiss National Bank	13F	Company	0.2%	11,302	$3,065,000	—	30 Jun 2021	13F
US BANCORP \DE\	13F	Company	0.19%	10,702	$2,902,000	—	30 Jun 2021	13F
Legal & General Group Plc	13F	Company	0.19%	10,530	$2,855,000	—	30 Jun 2021	13F
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	13F	Company	0.19%	10,279	$2,787,000	—	30 Jun 2021	13F
State of New Jersey Common Pension Fund D	13F	Company	0.18%	10,208	$2,768,000	—	30 Jun 2021	13F
PUBLIC SECTOR PENSION INVESTMENT BOARD	13F	Company	0.18%	9,988	$2,708,000	—	30 Jun 2021	13F
BANK OF MONTREAL /CAN/	13F	Company	0.18%	9,858	$2,693,000	—	30 Jun 2021	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.17%	9,215	$2,499,000	—	30 Jun 2021	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	0.16%	9,126	$2,475,000	—	30 Jun 2021	13F

Institutional Holders of MESA LABORATORIES INC /CO/ - Common Stock, no par value (MLAB) as of Q3 2021

As of 30 Sep 2021, MESA LABORATORIES INC /CO/ - Common Stock, no par value (MLAB) was held by 171 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 4,766,186 shares. The largest 10 holders included BlackRock Inc., Conestoga Capital Advisors, LLC, ROYCE & ASSOCIATES LP, VANGUARD GROUP INC, Invesco Ltd., STATE STREET CORP, Ranger Investment Management, L.P., KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC, ATLANTA CAPITAL MANAGEMENT CO L L C, and SCHRODER INVESTMENT MANAGEMENT GROUP. This page lists 171 institutional shareholders reporting positions in this security for the Q3 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q3 2021 vs Q2 2021 Across Filers

Q2 2021 holders

157

Q3 2021 holders

171

Holder diff

Investor	Q2 2021 Shares	Q3 2021 Shares	Share Diff	Share Chg %	Q2 2021 Value $	Q3 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.