Keros Therapeutics, Inc.
US ˙ NasdaqGM ˙ US4923271013

SecurityKROS / Keros Therapeutics, Inc.
InstitutionFranklin Resources Inc
Latest Disclosed Ownership21,756 shares
Latest Disclosed Value $ 240,186
Franklin Resources Inc reports 21.12% decrease in ownership of KROS / Keros Therapeutics, Inc.

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 21,756 shares of Keros Therapeutics, Inc. (US:KROS) valued at $240,186 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 27,582 shares of Keros Therapeutics, Inc.. This represents a change in shares of -21.12% during the quarter. The current value of the position is $234,312 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)
2026-05-13 2026-03-31 13F KEROS THERAPEUTICS COM 492327101 21,756 -5,826 -21.12 240 -57.22 0.0000
2026-02-11 2025-12-31 13F KEROS THERAPEUTICS COM 492327101 27,582 -60,176 -68.57 562 -59.58 0.0001
2025-11-13 2025-09-30 13F KEROS THERAPEUTICS COM 492327101 87,758 -44,543 -33.67 1,388 -21.40 0.0003
2025-08-12 2025-06-30 13F KEROS THERAPEUTICS COM 492327101 132,301 94,006 245.48 1,766 352.82 0.0005
2025-05-13 2025-03-31 13F KEROS THERAPEUTICS COM 492327101 38,295 -250,133 -86.72 390 -91.46 0.0001
2025-02-12 2024-12-31 13F KEROS THERAPEUTICS COM 492327101 288,428 194 0.07 4,566 -73.82 0.0013
2024-11-27 2024-09-30 13F/A-1 KEROS THERAPEUTICS COM 492327101 288,234 -111,980 -27.98 17,438 -4.65 0.0049
2024-11-12 2024-09-30 13F KEROS THERAPEUTICS COM 492327101 288,234 -111,980 17,438 0.0008
2024-08-14 2024-06-30 13F KEROS THERAPEUTICS COM 492327101 400,214 -231,835 -36.68 18,290 -56.29 0.0056
2024-05-13 2024-03-31 13F KEROS THERAPEUTICS COM 492327101 632,049 -67,376 -9.63 41,842 50.46 0.0132
2024-02-09 2023-12-31 13F KEROS THERAPEUTICS COM 492327101 699,425 226,674 47.95 27,809 84.52 0.0130
2023-11-13 2023-09-30 13F KEROS THERAPEUTICS COM 492327101 472,751 0 0.00 15,071 -20.66 0.0077
2023-08-11 2023-06-30 13F KEROS THERAPEUTICS COM 492327101 472,751 0 0.00 18,995 -5.90 0.0090
2023-05-12 2023-03-31 13F KEROS THERAPEUTICS COM 492327101 472,751 0 0.00 20,186 -11.08 0.0101
2023-02-10 2022-12-31 13F KEROS THERAPEUTICS COM 492327101 472,751 -247 -0.05 22,702 27.58 0.0118
2022-11-14 2022-09-30 13F KEROS THERAPEUTICS COM 492327101 472,998 118 0.02 17,794 36.19 0.0097
2022-08-11 2022-06-30 13F KEROS THERAPEUTICS COM 492327101 472,880 78,203 19.81 13,066 -39.12 0.0065
2022-05-13 2022-03-31 13F KEROS THERAPEUTICS COM 492327101 394,677 -11 -0.00 21,463 -7.06 0.0086
2022-02-11 2021-12-31 13F KEROS THERAPEUTICS COM 492327101 394,688 28 0.01 23,094 47.92 0.0083
2021-11-12 2021-09-30 13F KEROS THERAPEUTICS COM 492327101 394,660 -65 -0.02 15,613 -6.87 0.0059
2021-08-13 2021-06-30 13F KEROS THERAPEUTICS COM 492327101 394,725 134,546 51.71 16,764 4.68 0.0064
2021-05-13 2021-03-31 13F KEROS THERAPEUTICS COM 492327101 260,179 53 0.02 16,014 -12.73 0.0065
2021-02-10 2020-12-31 13F KEROS THERAPEUTICS COM 492327101 260,126 260,126 18,349 0.0078
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.