克羅斯治療公司
US ˙ NasdaqGM ˙ US4923271013

SecurityKROS / Keros Therapeutics, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership56,925 shares
Latest Disclosed Value $ 759,948
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 11.96% increase in ownership of KROS / Keros Therapeutics, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 56,925 shares of Keros Therapeutics, Inc. (US:KROS) valued at $759,949 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 50,844 shares of Keros Therapeutics, Inc.. This represents a change in shares of 11.96% during the quarter. The current value of the position is $586,328 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.

Upgrade to unlock premium data and export to Excel .

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 Keros Therapeutics EC US4923271013 56,925 6,081 11.96 760 46.53 0.0171
2025-05-28 2025-03-31 NP Keros Therapeutics EC US4923271013 50,844 0 0.00 518 -35.57 0.0124
2025-02-25 2024-12-31 NP Keros Therapeutics EC US4923271013 50,844 -7,517 -12.88 805 -76.28 0.0176
2024-11-26 2024-09-30 NP Keros Therapeutics EC US4923271013 58,361 9,694 19.92 3,389 52.38 0.0641
2024-08-26 2024-06-30 NP Keros Therapeutics EC US4923271013 48,667 3,669 8.15 2,224 -25.32 0.0453
2024-05-28 2024-03-31 NP Keros Therapeutics EC US4923271013 44,998 3,635 8.79 2,979 81.14 0.0622
2024-02-26 2023-12-31 NP Keros Therapeutics EC US4923271013 41,363 3,881 10.35 1,645 37.69 0.0351
2023-11-28 2023-09-30 NP Keros Therapeutics EC US4923271013 37,482 -1,349 -3.47 1,195 -23.46 0.0312
2023-08-25 2023-06-30 NP Keros Therapeutics EC US4923271013 38,831 8,109 26.39 1,560 18.99 0.0370
2023-05-26 2023-03-31 NP Keros Therapeutics EC US4923271013 30,722 754 2.52 1,312 -8.90 0.0349
2023-02-24 2022-12-31 NP Keros Therapeutics EC US4923271013 29,968 -454 -1.49 1,439 25.79 0.0396
2022-11-25 2022-09-30 NP Keros Therapeutics EC US4923271013 30,422 5,889 24.00 1,144 68.98 0.0328
2022-08-25 2022-06-30 NP Keros Therapeutics EC US4923271013 24,533 0 0.00 678 -49.25 0.0187
2022-05-26 2022-03-31 NP Keros Therapeutics EC US4923271013 24,533 958 4.06 1,334 -3.26 0.0311
2022-02-25 2021-12-31 NP Keros Therapeutics EC US4923271013 23,575 0 0.00 1,379 47.96 0.0299
2021-11-24 2021-09-30 NP Keros Therapeutics EC US4923271013 23,575 0 0.00 933 -6.89 0.0205
2021-08-26 2021-06-30 NP Keros Therapeutics EC US4923271013 23,575 3,345 16.53 1,001 -19.60 0.0215
2021-05-27 2021-03-31 NP Keros Therapeutics EC US4923271013 20,230 0 0.00 1,245 -12.75 0.0282
2021-02-25 2020-12-31 NP Keros Therapeutics EC US4923271013 20,230 8,487 72.27 1,427 215.71 0.0366
2020-11-25 2020-09-30 NP Keros Therapeutics EC US4923271013 11,743 0 0.00 453 2.73 0.0145
2020-08-27 2020-06-30 NP Keros Therapeutics EC US4923271013 11,743 11,743 440 0.0144
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.