메사 연구소, Inc.
US ˙ NasdaqGS ˙ US59064R1095

SecurityMLAB / Mesa Laboratories, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership8,898 shares
Latest Disclosed Value $ 838,369
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series ownership in MLAB / Mesa Laboratories, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 8,898 shares of Mesa Laboratories, Inc. (US:MLAB) valued at $838,370 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 8,898 shares of Mesa Laboratories, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $924,413 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)
2025-08-26 2025-06-30 NP Mesa Laboratories EC US59064R1095 8,898 0 0.00 838 -20.57 0.0188
2025-05-28 2025-03-31 NP Mesa Laboratories EC US59064R1095 8,898 5 0.06 1,056 -9.98 0.0253
2025-02-25 2024-12-31 NP Mesa Laboratories EC US59064R1095 8,893 -1,382 -13.45 1,173 -12.14 0.0256
2024-11-26 2024-09-30 NP Mesa Laboratories EC US59064R1095 10,275 612 6.33 1,334 59.19 0.0252
2024-08-26 2024-06-30 NP Mesa Laboratories EC US59064R1095 9,663 462 5.02 838 -16.95 0.0171
2024-05-28 2024-03-31 NP Mesa Laboratories EC US59064R1095 9,201 -435 -4.51 1,010 0.00 0.0211
2024-02-26 2023-12-31 NP Mesa Laboratories EC US59064R1095 9,636 1,047 12.19 1,010 11.86 0.0215
2023-11-28 2023-09-30 NP Mesa Laboratories EC US59064R1095 8,589 -133 -1.52 902 -19.46 0.0235
2023-08-25 2023-06-30 NP Mesa Laboratories EC US59064R1095 8,722 558 6.83 1,121 -21.46 0.0266
2023-05-26 2023-03-31 NP Mesa Laboratories EC US59064R1095 8,164 219 2.76 1,426 8.03 0.0380
2023-02-24 2022-12-31 NP Mesa Laboratories EC US59064R1095 7,945 -3 -0.04 1,321 17.96 0.0363
2022-11-25 2022-09-30 NP Mesa Laboratories EC US59064R1095 7,948 183 2.36 1,119 -29.31 0.0321
2022-08-25 2022-06-30 NP Mesa Laboratories EC US59064R1095 7,765 0 0.00 1,584 -20.01 0.0437
2022-05-26 2022-03-31 NP Mesa Laboratories EC US59064R1095 7,765 0 0.00 1,979 -22.30 0.0461
2022-02-25 2021-12-31 NP Mesa Laboratories EC US59064R1095 7,765 453 6.20 2,548 15.25 0.0553
2021-11-24 2021-09-30 NP Mesa Laboratories EC US59064R1095 7,312 0 0.00 2,211 11.50 0.0487
2021-08-26 2021-06-30 NP Mesa Laboratories EC US59064R1095 7,312 0 0.00 1,983 11.35 0.0425
2021-05-27 2021-03-31 NP Mesa Laboratories EC US59064R1095 7,312 -346 -4.52 1,780 -18.91 0.0404
2021-02-25 2020-12-31 NP Mesa Laboratories EC US59064R1095 7,658 0 0.00 2,195 12.56 0.0562
2020-11-25 2020-09-30 NP Mesa Laboratories EC US59064R1095 7,658 775 11.26 1,951 30.70 0.0626
2020-08-27 2020-06-30 NP Mesa Laboratories EC US59064R1095 6,883 356 5.45 1,492 1.15 0.0488
2020-06-01 2020-03-31 NP Mesa Laboratories EC US59064R1095 6,527 -123 -1.85 1,476 -11.04 0.0603
2020-02-27 2019-12-31 NP Mesa Laboratories EC 59064R109 6,650 802 13.71 1,659 19.28 0.0499
2019-11-27 2019-09-30 NP Mesa Laboratories EC US59064R1095 5,848 5,848 1,390 0.0460
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.