🕵️ Aclaris Therapeutics, Inc. ($ACRS)
SEC insider & ownership activity, last 12 months · CIK 1557746 · every row links its SEC filing
Over the last 12 months insiders sold $1.4M with no open-market buying against it. Leonard Braden Michael sold $1.4M in discretionary trades (Apr). BML Investment Partners, L.P. trimmed 11.9% → 9.9%; Blackrock, Inc. added 5.1% → 6.2%. No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 1 seller, $1.4M (1 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Leonard Braden Michael | 0 | – | 1 | $1.4M | Apr 23, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| BML Investment Partners, L.P. | 9.9% | 13G | Apr 27, 2026 | filing ↗ | |
| Biosion, Inc. | 9.4% | 13G | Jan 9, 2026 | filing ↗ | |
| Bonita Biotech (HK) Ltd | 9.4% | 13G | Jan 9, 2026 | filing ↗ | |
| DEEP Track Capital, LP | 7.0% | 13G | Mar 17, 2026 | filing ↗ | |
| DEEP Track Biotechnology Master Fund, Ltd. | 7.0% | 13G | Mar 17, 2026 | filing ↗ | |
| David Kroin | 7.0% | 13G | Mar 17, 2026 | filing ↗ | |
| RA Capital Management, L.P. | 6.3% | 13G | Apr 7, 2026 | filing ↗ | |
| Peter Kolchinsky | 6.3% | 13G | Apr 7, 2026 | filing ↗ | |
| Rajeev Shah | 6.3% | 13G | Apr 7, 2026 | filing ↗ | |
| RA Capital Healthcare Fund, L.P. | 6.3% | 13G | Apr 7, 2026 | filing ↗ | |
| Blackrock, Inc. | 6.2% | 13G | Jan 21, 2026 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Shareholder vote (5.07) | Jun 4, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 28, 2026 | filing ↗ |
| Other events (8.01) | Apr 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 28, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 9, 2026 | filing ↗ |
| Earnings (2.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 6, 2026 | filing ↗ |
| Other events (8.01) | Jan 6, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 6, 2026 | filing ↗ |
| Earnings (2.02) | Nov 6, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 6, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 14, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Oct 14, 2025 | filing ↗ |
| Earnings (2.02) | Aug 7, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 29, 2025 | filing ↗ |
| Other events (8.01) | Jul 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 29, 2025 | filing ↗ |