Company profile
Keros Therapeutics, Inc. Insider Trading
KROSEvery SEC Form 4 insider trading filing for Keros Therapeutics, Inc. (KROS) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001664710
- Filings
- 83
- Insiders
- 31
- Last filing
- 2026-08-18
Activity summary
No insider transactions in the last 30 days. The most recent was on August 18, 2026, when Annita Tanini sold 1,224 shares. 83 filings from 31 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Keros Therapeutics, Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $194.0M.
90 day insight
Over the last 90 days, Keros Therapeutics, Inc. insiders bought $0 (2 transactions) and sold $95K (3 transactions).
- Most active insider: Jean Jacques Bienaime with 2 transactions totaling $21K.
- Largest single sale: $46K by Esther Cho on Aug 18, 2026.
- 25% of recent sales were pre-scheduled 10b5-1 trades, typically less informative than open-market activity.
Activity skews bearish: sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | Annita Tanini | KROS | Sale | 1,224 | $10.29 | $13K |
| Aug 18, 2026 | Lorena Raquel Lerner | KROS | Sale | 3,568 | $10.29 | $37K |
| Aug 18, 2026 | Esther Cho | KROS | Sale | 4,485 | $10.29 | $46K |
| Aug 18, 2026 | Charles W. Newton | KROS | Sale10b5 | 551 | $10.30 | $6K |
| Aug 17, 2026 | Jean Jacques Bienaime | KROS | Purchase10b5 | 1,000 | $10.27 | $10K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Keros Therapeutics, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →