Mesa Laboratories, Inc.
US ˙ NasdaqGS ˙ US59064R1095

SecurityMLAB / Mesa Laboratories, Inc.
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership3,187 shares
Latest Disclosed Value $ 281,795
Squarepoint Ops LLC reports 16.02% increase in ownership of MLAB / Mesa Laboratories, Inc.

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 3,187 shares of Mesa Laboratories, Inc. (US:MLAB) valued at $281,795 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,747 shares of Mesa Laboratories, Inc.. This represents a change in shares of 16.02% during the quarter. The current value of the position is $332,659 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)
2026-05-15 2026-03-31 13F MESA LABS COM 59064R109 3,187 440 16.02 282 30.70 0.0003
2026-02-13 2025-12-31 13F MESA LABS COM 59064R109 2,747 2,747 216 0.0002
2025-08-27 2025-03-31 13F/A-1 MESA LABS COM 59064R109 0 -2,225 -100.00 0 -100.00
2025-05-15 2025-03-31 13F MESA LABS COM 59064R109 0 0
2025-02-14 2024-12-31 13F MESA LABS COM 59064R109 2,225 2,225 293 0.0003
2024-05-15 2024-03-31 13F MESA LABS COM 59064R109 0 -3,608 -100.00 0 -100.00
2024-02-14 2023-12-31 13F MESA LABS COM 59064R109 3,608 3,608 378 0.0007
2023-11-14 2023-09-30 13F MESA LABS COM 59064R109 0 -1,959 -100.00 0 -100.00
2023-08-14 2023-06-30 13F MESA LABS COM 59064R109 1,959 1,959 252 0.0008
2023-05-15 2023-03-31 13F MESA LABS COM 59064R109 0 -1,268 -100.00 0 -100.00
2023-02-14 2022-12-31 13F MESA LABS COM 59064R109 1,268 1,268 211 0.0008
2021-08-16 2021-06-30 13F MESA LABS COM 59064R109 0 -882 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MESA LABS COM 59064R109 882 882 215 0.0013
2020-11-16 2020-09-30 13F MESA LABS COM 59064R109 0 -3,129 -100.00 0 -100.00
2020-08-14 2020-06-30 13F MESA LABS COM 59064R109 3,129 3,129 678 0.0110
2019-08-14 2019-06-30 13F MESA LABS COM 59064R109 0 -1,252 -100.00 0 -100.00
2019-05-15 2019-03-31 13F MESA LABS COM 59064R109 1,252 1,252 289 0.0031
2019-02-14 2018-12-31 13F MESA LABS COM 59064R109 0 -1,216 -100.00 0 -100.00
2018-11-14 2018-09-30 13F MESA LABS COM 59064R109 1,216 1,216 226 0.0027
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.