Mesa Laboratories, Inc.
US ˙ NasdaqGS ˙ US59064R1095

SecurityMLAB / Mesa Laboratories, Inc.
InstitutionAllworth Financial LP
Latest Disclosed Ownership249 shares
Latest Disclosed Value $ 22,017
Allworth Financial LP reports 522.50% increase in ownership of MLAB / Mesa Laboratories, Inc.

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 249 shares of Mesa Laboratories, Inc. (US:MLAB) valued at $22,017 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 40 shares of Mesa Laboratories, Inc.. This represents a change in shares of 522.50% during the quarter. The current value of the position is $25,991 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F MESA LABS COM 59064R109 249 209 522.50 22 633.33 0.0001
2026-02-05 2025-12-31 13F MESA LABS COM 59064R109 40 14 53.85 3 200.00 0.0000
2025-12-02 2025-09-30 13F MESA LABS COM 59064R109 26 26 2 0.0000
2025-01-30 2024-12-31 13F MESA LABS COM 59064R109 0 -117 -100.00 0 -100.00
2024-10-23 2024-09-30 13F MESA LABS COM 59064R109 117 0 0.00 15 25.00 0.0001
2024-07-24 2024-06-30 13F MESA LABS COM 59064R109 117 100 588.24 13 1,100.00 0.0001
2024-04-25 2024-03-31 13F MESA LABS COM 59064R109 17 -3 -15.00 2 -50.00 0.0000
2024-01-24 2023-12-31 13F MESA LABS COM 59064R109 20 14 233.33 2 0.0000
2023-10-31 2023-09-30 13F MESA LABS COM 59064R109 6 6 1 0.0000
2020-11-03 2020-09-30 13F MESA LABS COM 59064R109 0 -31 -100.00 0 -100.00
2020-07-24 2020-06-30 13F MESA LABS COM 59064R109 31 0 0.00 7 0.00 0.0002
2020-04-17 2020-03-31 13F MESA LABS COM 59064R109 31 31 7 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.