The sustained selling by an officer over multiple weeks is a bearish signal, especially given the historical underperformance of prior bullish calls on ANAB (T+20 win rate 33%). Monitor for additional Form 4 filings and any upcoming corporate events (earnings, pipeline updates) that could explain the selling. The stock's high analyst bullishness (94% buy ratings) contrasts with insider behavior, creating a potential divergence to watch.
Price Chart
Executive Summary
Dennis Mulroy, an officer of AnaptysBio, filed a Form 144 on June 5, 2026, indicating intent to sell 22,491 shares of common stock valued at approximately $1.15 million. The filing also reveals a pattern of recent sales totaling over 160,000 shares in the prior two weeks, suggesting a sustained insider selling campaign rather than a one-off liquidity event.
Key Facts
- Officer Dennis Mulroy filed Form 144 to sell 22,491 shares valued at ~$1.15 million.
- The filing also discloses 13 prior sales between May 15 and June 4, 2026, totaling ~160,422 shares for ~$8.7 million.
- The proposed sale is attributed to a stock option exercise, but the aggregate selling pattern is substantial.
- Market cap is ~$1.5B, so the total disclosed sales (~$9.9M) represent ~0.66% of market cap.
- No other insider activity reported in the last 30 days per market data snapshot.
Financial Impact
Total disclosed insider sales of ~$9.9 million over the past three weeks, with the latest 144 adding ~$1.15 million.
Risk Factors
- Form 144 is an intent to sell; the sale may not be executed, but the pattern of recent completed sales is confirmed.
- The selling could be for personal diversification or tax planning, not necessarily a reflection of company outlook.
- High analyst consensus may already be priced in, and insider selling could precede negative news.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-005723 |
| Document: 0001950047-26-005723-index.html | 0001950047-26-005723 |
| Document: 0001950047-26-005723.txt | 0001950047-26-005723 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 12, 2026 7w ago | Institutional Cluster | $56.02 $53.87 | ▼ −3.84% | ▼ −2.09% | $48.53 (−13.37%) |
Jun 29, 2026 13w ago | 144 | $67.50 $53.61 | ▲ +20.58% | ▲ +19.55% | $48.53 (+28.10%) |
Jun 29, 2026 13w ago | DEFA14A | $67.50 $53.61 | ▼ −20.58% | ▼ −19.55% | $48.53 (−28.10%) |
Jun 26, 2026 13w ago | 144 | $65.97 $54.15 | ▲ +17.92% | ▲ +17.64% | $48.53 (+26.44%) |
Jun 22, 2026 14w ago | 8-K | $59.43 $50.29 | ▼ −15.38% | ▼ −16.54% | $48.53 (−18.34%) |
Jun 17, 2026 15w ago | 144 | $57.51 $54.15 | ▲ +5.84% | ▲ +6.38% | $48.53 (+15.61%) |
Jun 15, 2026 15w ago | 144 | $57.61 $62.51 | ▼ −8.51% | ▼ −8.31% | $48.53 (+15.76%) |
Jun 11, 2026 16w ago | 144 | $56.07 $66.39 | ▼ −18.41% | ▼ −16.63% | $48.53 (+13.45%) |
Jun 10, 2026 16w ago | 144 | $54.24 $66.59 | ▼ −22.77% | ▼ −20.88% | $48.53 (+10.53%) |
Jun 8, 2026 16w ago | 144 | $51.63 $67.33 | ▼ −30.40% | ▼ −28.95% | $48.53 (+6.00%) |
US Market Status
Subscribe to SecBot
Get Real-Time SEC Filing Intelligence
Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.
Try SecBot Free Coming soon: SecBot Pro with alerts, watchlists, and API access