MESA LABORATORIES INC /CO/
Total Trades
55
Buys
1
Sells
27
Largest Trade
N/A
Insiders
9
Institutional Funds
117
Inst. Value
$1M+
Activist Filings
22
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Owens Gary M | President and CEO | SELL | $100K–$500K | 2K | $97.12 | Jun 18, 2025 |
| Owens Gary M | President and CEO | EXERCISE | N/A | 4K | — | Jun 18, 2025 |
| Archbold Brian David | SVP Operations | SELL | $15K–$50K | 472 | $97.12 | Jun 18, 2025 |
| Archbold Brian David | SVP Operations | EXERCISE | N/A | 1K | — | Jun 18, 2025 |
| Sakys John | CFO | SELL | $50K–$100K | 642 | $97.12 | Jun 18, 2025 |
| Sakys John | CFO | GRANT | N/A | 668 | — | Jun 18, 2025 |
| Sakys John | CFO | EXERCISE | N/A | 793 | — | Jun 18, 2025 |
| Owens Gary M | President and CEO | SELL | $1M+ | 21K | $123.91 | Mar 24, 2025 |
| Owens Gary M | President and CEO | EXERCISE | $1M+ | 21K | $122.98 | Mar 24, 2025 |
| Owens Gary M | President and CEO | SELL | $500K+ | 5K | $112.79 | Oct 30, 2024 |
| Owens Gary M | President and CEO | GRANT | N/A | 12K | — | Oct 30, 2024 |
| Schmieder John Bradley | Director | SELL | $100K–$500K | 4K | $123.22 | Sep 19, 2023 |
| Schmieder John Bradley | Director | SELL | $100K–$500K | 3K | $123.32 | Sep 14, 2023 |
| Owens Gary M | President and CEO | SELL | $100K–$500K | 2K | $142.82 | Sep 5, 2023 |
| Owens Gary M | President and CEO | EXERCISE | $100K–$500K | 2K | $136.42 | Sep 5, 2023 |
| Sakys John | CFO | SELL | $500K+ | 5K | $169.50 | Mar 27, 2023 |
| Sakys John | CFO | EXERCISE | $100K–$500K | 5K | $105.40 | Mar 27, 2023 |
| Sakys John | CFO | SELL | $100K–$500K | 1K | $165.71 | Mar 16, 2023 |
| Sakys John | CFO | EXERCISE | $50K–$100K | 1K | $70.56 | Mar 16, 2023 |
| Sakys John | CFO | EXERCISE | $15K–$50K | 400 | $70.56 | Mar 9, 2023 |
| Sakys John | CFO | SELL | $50K–$100K | 400 | $169.97 | Mar 9, 2023 |
| Sakys John | CFO | SELL | $100K–$500K | 1K | $184.27 | Feb 10, 2023 |
| Sakys John | CFO | EXERCISE | $50K–$100K | 1K | $51.85 | Feb 10, 2023 |
| Sakys John | CFO | EXERCISE | $100K–$500K | 2K | $70.56 | Jan 25, 2023 |
| Sakys John | CFO | SELL | $100K–$500K | 2K | $210.19 | Jan 25, 2023 |
| Schmieder John Bradley | Director | SELL | $100K–$500K | 2K | $191.31 | Jan 17, 2023 |
| Hall Shannon | Director | SELL | $15K–$50K | 230 | $174.97 | Dec 9, 2022 |
| Schmieder John Bradley | Director | SELL | $100K–$500K | 3K | $175.45 | Nov 21, 2022 |
| GUILLEMIN EVAN | Director | EXERCISE | $100K–$500K | 3K | $99.65 | Aug 19, 2022 |
| GUILLEMIN EVAN | Director | SELL | $500K+ | 4K | $196.12 | Aug 19, 2022 |
| Sakys John | CFO | SELL | $100K–$500K | 2K | $200.57 | Aug 17, 2022 |
| Sakys John | CFO | EXERCISE | $100K–$500K | 2K | $70.56 | Aug 17, 2022 |
| Tripeny R Tony | Director | BUY | $100K–$500K | 500 | $200.00 | Aug 9, 2022 |
| Owens Gary M | President and CEO | EXERCISE | N/A | 2K | — | Jun 22, 2022 |
| Owens Gary M | President and CEO | SELL | $100K–$500K | 2K | $188.22 | Jun 22, 2022 |
| Owens Gary M | President and CEO | GRANT | N/A | 4K | — | Jun 22, 2022 |
| Archbold Brian David | SVP Operations | SELL | $50K–$100K | 392 | $188.22 | Jun 22, 2022 |
| Archbold Brian David | SVP Operations | GRANT | N/A | 868 | — | Jun 22, 2022 |
| Archbold Brian David | SVP Operations | EXERCISE | N/A | 338 | — | Jun 22, 2022 |
| DINOIA GREGORY | SVP Commercial | SELL | $100K–$500K | 555 | $188.22 | Jun 22, 2022 |
| DINOIA GREGORY | SVP Commercial | GRANT | N/A | 1K | — | Jun 22, 2022 |
| DINOIA GREGORY | SVP Commercial | EXERCISE | N/A | 391 | — | Jun 22, 2022 |
| Sakys John | CFO | SELL | $100K–$500K | 722 | $188.22 | Jun 22, 2022 |
| Sakys John | CFO | GRANT | N/A | 2K | — | Jun 22, 2022 |
| Sakys John | CFO | EXERCISE | N/A | 392 | — | Jun 22, 2022 |
| Sullivan John James | Director | SELL | $1M+ | 5K | $207.76 | Jun 13, 2022 |
| Sullivan John James | Director | EXERCISE | $100K–$500K | 6K | $70.56 | Jun 13, 2022 |
| Sakys John | CFO | SELL | $15K–$50K | 72 | $250.44 | Apr 22, 2022 |
| Sakys John | CFO | EXERCISE | $1K–$15K | 72 | $51.85 | Apr 22, 2022 |
| Sakys John | CFO | SELL | $100K–$500K | 2K | $251.23 | Mar 25, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 117 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Boston Partners | 213K | $1M+ | SH |
| Ranger Investment Management, L.P. | 205K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 153K | $1M+ | SH |
| KENNEDY CAPITAL MANAGEMENT LLC | 145K | $1M+ | SH |
| DIAMOND HILL CAPITAL MANAGEMENT INC | 142K | $1M+ | SH |
| STATE STREET CORP | 121K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 111K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 109K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 62K | $1M+ | SH |
| GABELLI FUNDS LLC | 61K | $1M+ | SH |
| GENEVA CAPITAL MANAGEMENT LLC | 56K | $1M+ | SH |
| Roubaix Capital, LLC | 55K | $1M+ | SH |
| HERALD INVESTMENT MANAGEMENT Ltd | 50K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 39K | $1M+ | SH |
| JANE STREET GROUP, LLC | 38K | $1M+ | SH |
| Bank of New York Mellon Corp | 36K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 30K | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 30K | $1M+ | SH |
| TUDOR INVESTMENT CORP ET AL | 27K | $1M+ | SH |
| BBR PARTNERS, LLC | 25K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Oct 31, 2025
5.8%
322K shares
SC 13G/A · Oct 2, 2025
6.9%
379K shares
SC 13G/A · Jul 18, 2025
14.4%
783K shares
SC 13G/A · Apr 30, 2025
5.0%
271K shares
SC 13G/A · Jan 28, 2025
5.3%
287K shares
SC 13G/A · Jan 10, 2025
11.4%
618K shares
Royce & Associates, LP 52-2343049
SC 13G/A · Oct 15, 2024
6.4%
347K shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
6.9%
370K shares
Royce & Associates, LP 52-2343049
SC 13G/A · Jan 23, 2024
5.0%
270K shares
SC 13G/A · Jan 22, 2024
15.7%
846K shares
Conestoga Capital Advisors LLC 23-3072906
SC 13G/A · Jan 5, 2024
11.4%
618K shares
SC 13G/A · Feb 2, 2023
4.4%
232K shares
Royce & Associates, LP 52-2343049
SC 13G/A · Jan 27, 2023
3.0%
161K shares
SC 13G/A · Jan 26, 2023
16.4%
874K shares
SC 13G/A · Jan 20, 2023
16.4%
874K shares
Conestoga Capital Advisors LLC 23-3072906
SC 13G/A · Jan 18, 2023
11.3%
605K shares
Conestoga Capital Advisors LLC 23-3072906
SC 13G/A · Nov 18, 2022
11.4%
607K shares
T. ROWE PRICE ASSOCIATES, INC. 52-0556948
SC 13G/A · Feb 14, 2022
0.0%
1K shares
SC 13G/A · Jan 27, 2022
17.6%
921K shares
SC 13G/A · Jan 25, 2022
17.6%
921K shares
Royce & Associates, LP 52-2343049
SC 13G/A · Jan 21, 2022
6.6%
343K shares
Conestoga Capital Advisors LLC 23-3072906
SC 13G/A · Jan 10, 2022
10.4%
542K shares