Vault-13

MESA LABS INC MLAB

COM · Common Stock · CUSIP 59064R109 · ISIN US59064R1095

163 institutional holders +1 vs Q1 2023
4,881,2804.9m shares reported held*
90.7% of all shares outstanding*
$629.6mreported value*
23 new 52 added 60 reduced 22 sold out net sold ≈ $18.0m (-139.7k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($360.3k this quarter). Holder counts are more reliable. Shares outstanding: 5.4m as of 2023-07-27, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $128.99.

Trends to Q2 2023

Institutional holders

Managers reporting a position, each quarter

0100200Q3 22: 165Q4 22: 161Q1 23: 162Q2 23: 163163Q3 22Q4 22Q1 23Q2 23
Numbers
QuarterHolders
Q3 2022165
Q4 2022161
Q1 2023162
Q2 2023163

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q4 22: 87 bought or addedQ4 22: 72 cut or sold outQ4 22Q1 23: 74 bought or addedQ1 23: 62 cut or sold outQ1 23Q2 23: 75 bought or addedQ2 23: 82 cut or sold outQ2 23
Numbers
QuarterBought or addedCut or sold out
Q4 20228772
Q1 20237462
Q2 20237582

Biggest buyers

CITADEL ADVISORS LLC Added +42,562+42.6k
KENNEDY CAPITAL MANAGEMENT LLC Added +27,785+27.8k
DIMENSIONAL FUND ADVISORS LP Added +24,245+24.2k
Qube Research & Technologies Ltd New +16,926+16.9k
Granahan Investment Management, LLC Added +14,445+14.4k
GOLDMAN SACHS GROUP INC Added +13,826+13.8k
RENAISSANCE TECHNOLOGIES LLC Added +13,300+13.3k
Select Equity Group, L.P. Added +10,161+10.2k
SCHRODER INVESTMENT MANAGEMENT GROUP Added +10,108+10.1k
Cubist Systematic Strategies, LLC Added +8,829+8.8k

Biggest sellers

Invesco Ltd. Reduced -209,424-209.4k
BlackRock Inc. Reduced -48,429-48.4k
STATE STREET CORP Reduced -37,993-38.0k
FRED ALGER MANAGEMENT, LLC Reduced -22,081-22.1k
Point72 Asset Management, L.P. Reduced -17,800-17.8k
AMERIPRISE FINANCIAL INC Reduced -9,811-9.8k
CAPTRUST FINANCIAL ADVISORS Sold out -7,427-7.4k
MORGAN STANLEY Reduced -6,969-7.0k
BNP PARIBAS FINANCIAL MARKETS Reduced -6,897-6.9k
Bridgewater Associates, LP Sold out -6,275-6.3k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Conestoga Capital Advisors, LLC 13G · institution filed 2025-01-10 11.4% 618.1k≈ $61.5m 2025-01-10
Long Path Smaller Companies Fund, LP 13G · passive investor +1.3 pts · filed 2026-07-07 8.6% +1.3 pts 477.1k≈ $47.5m 2026-07-07
BlackRock, Inc. 13G · institution +1.0 pts · filed 2026-10-27 7.9% +1.0 pts 443.7k≈ $44.2m 2026-10-27
WASATCH ADVISORS LP 13G · institution new · filed 2026-10-09 6.9% new 387.1k≈ $38.5m 2026-10-09

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)

Insider purchases and sales in Q2 2023

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
10010Q3 21: 0 buyingQ3 21: 0 sellingQ4 21: 0 buyingQ4 21: 6 sellingQ4 21Q1 22: 0 buyingQ1 22: 3 sellingQ2 22: 0 buyingQ2 22: 5 sellingQ2 22Q3 22: 1 buyingQ3 22: 2 sellingQ4 22: 0 buyingQ4 22: 2 sellingQ4 22Q1 23: 0 buyingQ1 23: 2 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20210—0——
Q4 20210—6$4.8m—
Q1 20220—3$2.1m—
Q2 20220—5$1.7m—
Q3 20221$100.0k2$999.3k—
Q4 20220—2$478.9k—
Q1 20230—2$1.9m—
Q2 20230—0——

None reported in Q2 2023.

Holders, Q2 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.00% of their portfolio New York, NY 815,964816.0k $104.9m $104.9m 0.00% Reduced -48.4k -48,429
2 Conestoga Capital Advisors, LLC 1.18% of their portfolio WAYNE, PA 576,223576.2k $74.0m $74.0m 1.18% Reduced -2.2k -2,236
3 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 360,728360.7k $46.4m $46.4m 0.00% Added +3.5k +3,540
4 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 250,602250.6k $32.2m $32.2m 0.00% Reduced -7.0k -6,969
5 Ranger Investment Management, L.P. 1.80% of their portfolio DALLAS, TX 233,043233.0k $29.9m $29.9m 1.80% Added +8.7k +8,677
6 GENEVA CAPITAL MANAGEMENT LLC 0.49% of their portfolio MILWAUKEE, WI 191,670191.7k $24.6m $24.6m 0.49% Reduced -3.5k -3,471
7 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 180,077180.1k $23.1m $23.1m 0.00% Reduced -38.0k -37,993
8 ROYCE & ASSOCIATES LP 0.20% of their portfolio New York, NY 159,609159.6k $20.5m $20.5m 0.20% Added +1.7k +1,712
9 PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio DES MOINES, IA 158,637158.6k $20.4m $20.4m 0.01% Reduced -5.1k -5,051
10 KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 0.05% of their portfolio LOS ANGELES, CA 146,540146.5k $18.8m $18.8m 0.05% Added +2.9k +2,934
11 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 131,057131.1k $16.8m $16.8m 0.01% Added +24.2k +24,245
12 EAGLE ASSET MANAGEMENT INC 0.08% of their portfolio ST PETERSBURG, FL 111,349111.3k $14.3m $14.3m 0.08% Added +7.1k +7,106
13 SCHRODER INVESTMENT MANAGEMENT GROUP 0.02% of their portfolio London, X0 103,780103.8k $13.3m $13.3m 0.02% Added +10.1k +10,108
14 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 102,760102.8k $13.2m $13.2m 0.00% Added +2.7k +2,720
15 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 92,99393.0k $11.9m $11.9m 0.00% Added +6.2k +6,213
16 KENNEDY CAPITAL MANAGEMENT LLC 0.23% of their portfolio ST LOUIS, MO 77,08477.1k $9.9m $9.9m 0.23% Added +27.8k +27,785
17 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 67,55967.6k $8.7m $8.7m 0.00% Reduced -1.2k -1,235
18 RAYMOND JAMES & ASSOCIATES 0.01% of their portfolio ST PETERSBURG, FL 65,44265.4k $8.4m $8.4m 0.01% Added +2.2k +2,209
19 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 59,53959.5k $7.7m $7.7m 0.00% Reduced -3.6k -3,608
20 DF DENT & CO INC 0.09% of their portfolio BALTIMORE, MD 54,29854.3k $7.0m $7.0m 0.09% Reduced -2.4k -2,396
21 Granahan Investment Management, LLC 0.21% of their portfolio WALTHAM, MA 52,35652.4k $6.7m $6.7m 0.21% Added +14.4k +14,445
22 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 51,69451.7k $6.6m $6.6m 0.00% Reduced -9.8k -9,811
23 GLENMEDE TRUST CO NA 0.05% of their portfolio PHILADELPHIA, PA 50,33550.3k $8.7m $8.7m 0.05% Added +79 +79
24 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 46,98947.0k $6.0m $6.0m 0.01% Added +42.6k +42,562
25 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 41,32941.3k $5.3m $5.3m 0.01% Added +753 +753
26 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 38,78738.8k $5.0m $5.0m 0.00% Added +254 +254
27 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 33,67733.7k $4.3m $4.3m 0.00% Reduced -2.2k -2,155
28 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 32,03132.0k $4.1m $4.1m 0.00% Reduced -381 -381
29 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 29,23729.2k $3.8m $3.8m 0.00% Added +13.8k +13,826
30 Kent Lake Capital LLC 1.67% of their portfolio RENO, NV 28,20428.2k $3.6m $3.6m 1.67% Unchanged
31 FRED ALGER MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 27,16427.2k $3.5m $3.5m 0.02% Reduced -22.1k -22,081
32 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 23,00023.0k $3.0m $3.0m 0.00% Added +13.3k +13,300
33 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 21,58521.6k $2.8m $2.8m 0.00% Reduced -209.4k -209,424
34 PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio COLUMBUS, OH 18,91118.9k $2.4m $2.4m 0.01% Unchanged
35 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 17,80117.8k $2.3m $2.3m 0.00% Reduced -1.5k -1,462
36 RICE HALL JAMES & ASSOCIATES, LLC 0.12% of their portfolio San Diego, CA 17,03017.0k $2.2m $2.2m 0.12% Added +3.1k +3,062
37 Qube Research & Technologies Ltd 0.01% of their portfolio LONDON, X0 16,92616.9k $2.2m $2.2m 0.01% New
38 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 15,25315.3k $2.0m $2.0m 0.00% Added +324 +324
39 Legal & General Group Plc 0.00% of their portfolio London, X0 14,19714.2k $1.8m $1.8m 0.00% Added +1.6k +1,646
40 KING LUTHER CAPITAL MANAGEMENT CORP 0.01% of their portfolio FORT WORTH, TX 13,89113.9k $1.8m $1.8m 0.01% Unchanged
41 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 13,38313.4k $1.7m $1.7m 0.00% Reduced -362 -362
42 ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio Berwyn, PA 13,11013.1k $1.7m $1.7m 0.00% Added +80 +80
43 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 13,10813.1k $1.7m $1.7m 0.00% Reduced -6.2k -6,194
44 Select Equity Group, L.P. 0.01% of their portfolio NEW YORK, NY 12,67212.7k $1.6m $1.6m 0.01% Added +10.2k +10,161
45 Swiss National Bank 0.00% of their portfolio ZURICH, V8 11,60211.6k $1.5m $1.5m 0.00% Added +100 +100
46 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 10,41410.4k $1.3m $1.3m 0.00% Added +581 +581
47 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 9,8429.8k $1.3m $1.3m 0.01% Added +8.8k +8,829
48 Public Sector Pension Investment Board 0.01% of their portfolio MONTREAL, A8 8,9208.9k $1.1m $1.1m 0.01% Added +82 +82
49 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 8,1688.2k $1.0m $1.0m 0.00% New
50 Motley Fool Asset Management LLC 0.09% of their portfolio ALEXANDRIA, VA 7,7777.8k $999.3k $999.3k 0.09% New
51 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 7,0277.0k $903.3k $903.3k 0.00% Reduced -2.3k -2,307
52 PDT Partners, LLC 0.12% of their portfolio New York, NY 6,6716.7k $857.2k $857.2k 0.12% Reduced -1.7k -1,696
53 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 6,4546.5k $829.3k $829.3k 0.00% Added +1.4k +1,360
54 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 6,4206.4k $825.0k $825.0k 0.00% Reduced -165 -165
55 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 6,4176.4k $824.6k $824.6k 0.00% Added +77 +77
56 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 6,3026.3k $809.8k $809.8k 0.00% Added +1.3k +1,324
57 VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio San Antonio, TX 6,1126.1k $785.4k $785.4k 0.00% Reduced -1.0k -1,023
58 UBS Group AG 0.00% of their portfolio ZURICH, V8 6,0086.0k $772.0k $772.0k 0.00% Added +1.2k +1,169
59 Balyasny Asset Management L.P. 0.00% of their portfolio Chicago, IL 5,8505.8k $751.7k $751.7k 0.00% Added +3.3k +3,264
60 CANADA LIFE ASSURANCE Co 0.00% of their portfolio WINNIPEG, A2 5,7925.8k $744.0k $744.0k 0.00% Reduced -555 -555
61 Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio FAIRFIELD, IA 5,7605.8k $740.0k $740.0k 0.00% Added +313 +313
62 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.01% of their portfolio HARRISBURG, PA 5,6805.7k $729.9k $729.9k 0.01% Added +359 +359
63 Bahl & Gaynor LLC 0.00% of their portfolio CINCINNATI, OH 5,1335.1k $659.6k $659.6k 0.00% Reduced -9 -9
64 HRT FINANCIAL LP 0.01% of their portfolio NEW YORK, NY 5,0075.0k $643.0k $643.0k 0.01% New
65 Daiwa Securities Group Inc. 0.00% of their portfolio CHIYODA-KU,TOKYO, M0 5,0035.0k $643.0k $643.0k 0.00% Unchanged
66 State of Tennessee, Department of Treasury 0.00% of their portfolio NASHVILLE, TN 4,8424.8k $622.2k $622.2k 0.00% Added +1.1k +1,064
67 Thrivent Financial for Lutherans 0.00% of their portfolio Minneapolis, MN 4,8074.8k $618.0k $618.0k 0.00% Reduced -173 -173
68 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 4,6264.6k $594.4k $594.4k 0.00% Reduced -6.9k -6,897
69 TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio STAMFORD, CT 4,4554.5k $572.5k $572.5k 0.01% New
70 TEXAS PERMANENT SCHOOL FUND CORP 0.01% of their portfolio AUSTIN, TX 4,4234.4k $568.4k $568.4k 0.01% Reduced -84 -84
71 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.00% of their portfolio JUPITER, FL 4,3024.3k $552.8k $552.8k 0.00% New
72 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 4,2784.3k $549.7k $549.7k 0.00% Added +346 +346
73 M&T Bank Corp 0.00% of their portfolio BUFFALO, NY 4,1424.1k $532.1k $532.1k 0.00% Reduced -121 -121
74 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 4,0574.1k $521.3k $521.3k 0.00% Added +1.4k +1,441
75 Teton Advisors, Inc. 0.14% of their portfolio Rye, NY 4,0004.0k $514.0k $514.0k 0.14% Unchanged
76 TOWNSQUARE CAPITAL LLC 0.01% of their portfolio Lehi, UT 3,9504.0k $507.6k $507.6k 0.01% Added +601 +601
77 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 3,8413.8k $671.1k $671.1k 0.00% Unchanged
78 J.P. Morgan Private Wealth Advisors LLC 0.00% of their portfolio SAN FRANCISCO, CA 3,8323.8k $492.4k $492.4k 0.00% Reduced -564 -564
79 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 3,7213.7k $478.1k $478.1k 0.00% Reduced -550 -550
80 Allspring Global Investments Holdings, LLC 0.00% of their portfolio CHARLOTTE, NC 3,6893.7k $474.0k $474.0k 0.00% New
81 DARK FOREST CAPITAL MANAGEMENT LP 0.05% of their portfolio NEW YORK, NY 3,6073.6k $463.5k $463.5k 0.05% Added +2.9k +2,884
82 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 3,4553.5k $444.0k $444.0k 0.00% Reduced -564 -564
83 State of Alaska, Department of Revenue 0.01% of their portfolio JUNEAU, AK 3,3073.3k $424.0k $424.0k 0.01% Reduced -134 -134
84 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 2,9973.0k $385.1k $385.1k 0.00% Added +411 +411
85 Dynamic Technology Lab Private Ltd 0.05% of their portfolio SINGAPORE, U0 2,9102.9k $374.0k $374.0k 0.05% New
86 AMERICAN INTERNATIONAL GROUP, INC. 0.00% of their portfolio New York, NY 2,7612.8k $354.8k $354.8k 0.00% Reduced -20 -20
87 YOUSIF CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BLOOMFIELD HILLS, MI 2,7182.7k $349.3k $349.3k 0.00% Reduced -132 -132
88 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 2,6682.7k $342.8k $342.8k 0.00% Unchanged
89 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 2,6142.6k $335.9k $335.9k 0.00% New
90 Louisiana State Employees Retirement System 0.01% of their portfolio BATON ROUGE, LA 2,6002.6k $334.1k $334.1k 0.01% Added +300 +300
91 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 2,4832.5k $319.1k $319.1k 0.00% New
92 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 2,4452.4k $315.0k $315.0k 0.00% Added +81 +81
93 Trexquant Investment LP 0.01% of their portfolio STAMFORD, CT 2,4082.4k $309.4k $309.4k 0.01% Added +861 +861
94 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 2,4042.4k $308.9k $308.9k 0.00% Reduced -1.2k -1,245
95 SG Americas Securities, LLC 0.00% of their portfolio NEW YORK, NY 2,3792.4k $306.0k $306.0k 0.00% Reduced -715 -715
96 JANUS HENDERSON GROUP PLC 0.00% of their portfolio LONDON, X0 2,3122.3k $296.8k $296.8k 0.00% Reduced -2 -2
97 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 2,2962.3k $295.0k $295.0k 0.00% Reduced -142 -142
98 AMALGAMATED BANK 0.00% of their portfolio NEW YORK, NY 2,2482.2k $289.0k $289.0k 0.00% Reduced -56 -56
99 AZZAD ASSET MANAGEMENT INC /ADV 0.04% of their portfolio FALLS CHURCH, VA 2,2412.2k $288.0k $288.0k 0.04% Added +75 +75
100 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 2,1462.1k $275.8k $275.8k 0.00% New