The CEO's sustained selling pattern (55K+ shares in 12 days) is a bearish signal, especially given the company's $1.7B market cap and 89% analyst buy rating. Monitor for any negative news or guidance changes in the next 10-Q. The 144 is an intent to sell, but the pattern suggests the insider is actively reducing exposure.
Price Chart
Executive Summary
CEO Dennis Mulroy filed a Form 144 notice to sell 10,000 shares of AnaptysBio common stock, valued at approximately $585,006 based on the filing date price. This follows a series of recent sales by Mulroy totaling over 55,000 shares in the past two weeks, representing a significant insider selling pattern ahead of potential catalysts.
Key Facts
- CEO Dennis Mulroy filed Form 144 on 2026-05-27 to sell 10,000 shares at ~$585,006.
- Mulroy has sold 55,467 shares in the prior 12 days (5/15-5/26) for ~$3.33M total.
- The proposed sale is via Morgan Stanley Smith Barney, with shares acquired from stock option exercise on 5/27/2026.
- No lock-up expiration or earnings catalyst is indicated in the filing; the sales appear discretionary.
Financial Impact
CEO selling ~$585K in proposed sale, with $3.33M in recent prior sales over 12 days; total insider selling of ~$3.9M in under two weeks.
Risk Factors
- CEO selling may signal lack of confidence in near-term prospects or upcoming negative catalyst.
- Continued insider selling could pressure stock price and erode investor sentiment.
- No offsetting insider buying or positive corporate events in the filing to counterbalance the selling.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-005168 |
| Document: 0001950047-26-005168-index.html | 0001950047-26-005168 |
| Document: 0001950047-26-005168.txt | 0001950047-26-005168 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 12, 2026 7w ago | Institutional Cluster | $56.02 $53.87 | ▼ −3.84% | ▼ −2.09% | $48.77 (−12.94%) |
Jun 29, 2026 13w ago | 144 | $67.50 $53.61 | ▲ +20.58% | ▲ +19.55% | $48.77 (+27.75%) |
Jun 29, 2026 13w ago | DEFA14A | $67.50 $53.61 | ▼ −20.58% | ▼ −19.55% | $48.77 (−27.75%) |
Jun 26, 2026 13w ago | 144 | $65.97 $54.15 | ▲ +17.92% | ▲ +17.64% | $48.77 (+26.07%) |
Jun 22, 2026 14w ago | 8-K | $59.43 $50.29 | ▼ −15.38% | ▼ −16.54% | $48.77 (−17.94%) |
Jun 17, 2026 15w ago | 144 | $57.51 $54.15 | ▲ +5.84% | ▲ +6.38% | $48.77 (+15.20%) |
Jun 15, 2026 15w ago | 144 | $57.61 $62.51 | ▼ −8.51% | ▼ −8.31% | $48.77 (+15.34%) |
Jun 11, 2026 16w ago | 144 | $56.07 $66.39 | ▼ −18.41% | ▼ −16.63% | $48.77 (+13.02%) |
Jun 10, 2026 16w ago | 144 | $54.24 $66.59 | ▼ −22.77% | ▼ −20.88% | $48.77 (+10.08%) |
Jun 8, 2026 16w ago | 144 | $51.63 $67.33 | ▼ −30.40% | ▼ −28.95% | $48.77 (+5.54%) |
US Market Status
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