Harvard Bioscience, Inc.
US ˙ NasdaqCM ˙ US4169061052

SecurityHBIO / Harvard Bioscience, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership18,813 shares
Latest Disclosed Value $ 8,349
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 74.99% decrease in ownership of HBIO / Harvard Bioscience, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 18,813 shares of Harvard Bioscience, Inc. (US:HBIO) valued at $8,349 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 75,231 shares of Harvard Bioscience, Inc.. This represents a change in shares of -74.99% during the quarter. The current value of the position is $116,547 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 Harvard Bioscience EC US4169061052 18,813 -56,418 -74.99 8 -80.95 0.0002
2025-05-28 2025-03-31 NP Harvard Bioscience EC US4169061052 75,231 0 0.00 43 -73.42 0.0010
2025-02-25 2024-12-31 NP Harvard Bioscience EC US4169061052 75,231 0 0.00 159 -21.78 0.0035
2024-11-26 2024-09-30 NP Harvard Bioscience EC US4169061052 75,231 1,216 1.64 202 -3.81 0.0038
2024-08-26 2024-06-30 NP Harvard Bioscience EC US4169061052 74,015 0 0.00 211 -32.91 0.0043
2024-05-28 2024-03-31 NP Harvard Bioscience EC US4169061052 74,015 0 0.00 314 -20.76 0.0065
2024-02-26 2023-12-31 NP Harvard Bioscience EC US4169061052 74,015 9,482 14.69 396 42.60 0.0085
2023-11-28 2023-09-30 NP Harvard Bioscience EC US4169061052 64,533 0 0.00 277 -21.75 0.0072
2023-08-25 2023-06-30 NP Harvard Bioscience EC US4169061052 64,533 3,232 5.27 354 -6.84 0.0084
2022-05-26 2022-03-31 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 381 -12.04 0.0089
2022-02-25 2021-12-31 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 432 1.17 0.0094
2021-11-24 2021-09-30 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 428 -16.27 0.0094
2021-08-26 2021-06-30 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 511 52.69 0.0110
2021-05-27 2021-03-31 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 335 27.48 0.0076
2021-02-25 2020-12-31 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 263 42.39 0.0067
2020-11-25 2020-09-30 NP Harvard Bioscience EC US4169061052 61,301 0 0.00 185 -3.16 0.0059
2020-08-27 2020-06-30 NP Harvard Bioscience EC US4169061052 61,301 61,301 190 0.0062
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.