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 2018?

107 institutional investors reported MLAB - MESA LABORATORIES INC /CO/ - Common Stock, no par value for Q3 2018. Use the holders table for investor-level position and value details.

- Common Stock, no par value (MLAB)

CUSIP: 59064R109

Q3 2018 13F Holders as of 30 Sep 2018

Type / Class: Equity / Common Stock, no par value
Shares outstanding: 5,555,932
Total 13F shares: 2,706,548
Share change: -66,134
Total reported value: $502,397,713
Price per share: $185.62
Number of holders: 107
Value change: -$14,332,032
Number of buys: 54
Number of sells: 38

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 2018
Previous quarter: Q2 2018

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
Conestoga Capital Advisors, LLC	13F	Company	7.7%	428,722	$90,495,000	—	30 Jun 2018	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	5.1%	284,572	$60,067,000	—	30 Jun 2018	13F
FMR LLC	13F	Company	3.9%	217,220	$45,851,000	—	30 Jun 2018	13F
BlackRock Finance, Inc.	13F	Company	3.8%	210,585	$44,449,000	—	30 Jun 2018	13F
VANGUARD GROUP INC	13F	Company	2.8%	158,318	$33,417,000	—	30 Jun 2018	13F
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC	13F	Company	2.6%	144,299	$30,458,000	—	30 Jun 2018	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	2.4%	133,567	$28,192,000	—	30 Jun 2018	13F
VICTORY CAPITAL MANAGEMENT INC	13F	Company	1.9%	108,045	$22,806,000	—	30 Jun 2018	13F
ROYCE & ASSOCIATES LP	13F	Company	1.8%	102,430	$21,621,000	—	30 Jun 2018	13F
THB ASSET MANAGEMENT	13F	Company	1.4%	78,242	$16,515,000	—	30 Jun 2018	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	1.1%	62,500	$13,193,000	—	30 Jun 2018	13F
ArrowMark Colorado Holdings LLC	13F	Company	1.1%	60,838	$12,842,000	—	30 Jun 2018	13F
STATE STREET CORP	13F	Company	1.1%	60,475	$12,768,000	—	30 Jun 2018	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	1%	57,154	$12,064,000	—	30 Jun 2018	13F
NORTHERN TRUST CORP	13F	Company	0.87%	48,167	$10,167,000	—	30 Jun 2018	13F
KING LUTHER CAPITAL MANAGEMENT CORP	13F	Company	0.79%	44,071	$9,303,000	—	30 Jun 2018	13F
Nine Ten Capital Management LLC	13F	Company	0.79%	44,019	$9,292,000	—	30 Jun 2018	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.73%	40,523	$8,554,000	—	30 Jun 2018	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.62%	34,235	$7,226,000	—	30 Jun 2018	13F
WASATCH ADVISORS LP	13F	Company	0.54%	30,250	$6,385,000	—	30 Jun 2018	13F
Teton Advisors, Inc.	13F	Company	0.53%	29,600	$6,248,000	—	30 Jun 2018	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	0.44%	24,472	$5,165,000	—	30 Jun 2018	13F
Allianz Asset Management GmbH	13F	Company	0.38%	20,944	$4,421,000	—	30 Jun 2018	13F
Bank of New York Mellon Corp	13F	Company	0.34%	18,857	$3,980,000	—	30 Jun 2018	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.33%	18,418	$3,888,000	—	30 Jun 2018	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.31%	17,253	$3,642,000	—	30 Jun 2018	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.26%	14,699	$3,103,000	—	30 Jun 2018	13F
CRAWFORD INVESTMENT COUNSEL INC	13F	Company	0.26%	14,465	$3,053,000	—	30 Jun 2018	13F
Ranger Investment Management, L.P.	13F	Company	0.25%	13,846	$2,923,000	—	30 Jun 2018	13F
BAHL & GAYNOR INC	13F	Company	0.24%	13,463	$2,842,000	—	30 Jun 2018	13F
MORGAN STANLEY	13F	Company	0.24%	13,059	$2,756,000	—	30 Jun 2018	13F
Raymond James Financial Services Advisors, Inc.	13F	Company	0.23%	12,534	$2,646,000	—	30 Jun 2018	13F
RICE HALL JAMES & ASSOCIATES, LLC	13F	Company	0.19%	10,460	$2,208,000	—	30 Jun 2018	13F
COMERICA BANK	13F	Company	0.16%	9,031	$1,933,000	—	30 Jun 2018	13F
DF DENT & CO INC	13F	Company	0.15%	8,528	$1,800,000	—	30 Jun 2018	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	0.14%	8,046	$1,698,000	—	30 Jun 2018	13F
TIAA CREF INVESTMENT MANAGEMENT LLC	13F	Company	0.13%	7,267	$1,534,000	—	30 Jun 2018	13F
S.c.a. Candriam	13F	Individual	0.13%	7,200	$1,520,000	—	30 Jun 2018	13F
DEUTSCHE BANK AG\	13F	Company	0.13%	7,044	$1,486,000	—	30 Jun 2018	13F
UBS Group AG	13F	Company	0.12%	6,527	$1,378,000	—	30 Jun 2018	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.12%	6,512	$1,374,000	—	30 Jun 2018	13F
STIFEL FINANCIAL CORP	13F	Company	0.11%	6,241	$1,319,000	—	30 Jun 2018	13F
TEACHERS ADVISORS, LLC	13F	Company	0.11%	6,176	$1,304,000	—	30 Jun 2018	13F
BROWN ADVISORY INC	13F	Company	0.11%	5,910	$1,247,000	—	30 Jun 2018	13F
A.R.T. Advisors, LLC	13F	Company	0.11%	5,838	$1,232,000	—	30 Jun 2018	13F
Swiss National Bank	13F	Company	0.1%	5,702	$1,204,000	—	30 Jun 2018	13F
ROYAL BANK OF CANADA	13F	Company	0.1%	5,565	$1,174,000	—	30 Jun 2018	13F
Sapphire Star Partners LP	13F	Company	0.1%	5,351	$1,129,000	—	30 Jun 2018	13F
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	13F	Company	0.09%	5,059	$1,068,000	—	30 Jun 2018	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	0.09%	4,860	$1,026,000	—	30 Jun 2018	13F

Institutional Holders of MESA LABORATORIES INC /CO/ - Common Stock, no par value (MLAB) as of Q3 2018

As of 30 Sep 2018, MESA LABORATORIES INC /CO/ - Common Stock, no par value (MLAB) was held by 107 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 2,706,548 shares. The largest 10 holders included Conestoga Capital Advisors, LLC, PRICE T ROWE ASSOCIATES INC /MD/, BlackRock Inc., Vanguard Group Inc, KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC, DIMENSIONAL FUND ADVISORS LP, ROYCE & ASSOCIATES LP, VICTORY CAPITAL MANAGEMENT INC, Ranger Investment Management, L.P., and THOMSON HORSTMANN & BRYANT INC. This page lists 107 institutional shareholders reporting positions in this security for the Q3 2018 filing period.

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

Compare Q3 2018 vs Q2 2018 Across Filers

Q2 2018 holders

104

Q3 2018 holders

107

Holder diff

Investor	Q2 2018 Shares	Q3 2018 Shares	Share Diff	Share Chg %	Q2 2018 Value $	Q3 2018 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.