ANAB ANAPTYSBIO, INC
Price Chart
Executive Summary
CEO Dennis Mulroy filed a Form 144 to sell 20,000 shares (~$1.0M at filing) via a stock option exercise, signaling intent to sell. This follows a heavy selling pattern: Mulroy has sold ~127,422 shares worth ~$7.5M over the prior two weeks (May 15–June 2), including 10,000–15,000 share blocks nearly every trading day. The persistent insider selling ahead of no disclosed positive catalyst is a bearish signal, especially given the stock's poor historical T+20 performance (33% win rate, -9.38% avg return) and the company's 94% analyst bullishness creating potential disappointment risk.
Actionable Insight
The CEO's persistent selling pattern (nearly daily for two weeks) is a bearish signal, especially given the stock's poor historical T+20 performance. Traders should monitor for any negative catalyst or guidance revision that may have prompted the selling. Consider reducing long exposure or hedging ahead of the next earnings or material event.
Key Facts
- CEO Dennis Mulroy filed Form 144 to sell 20,000 shares via stock option exercise, with an estimated market value of ~$1,017,250.
- Mulroy has sold ~127,422 shares worth ~$7.5M in the 15 trading days prior (May 15–June 2), including daily blocks of 10,000–15,000 shares.
- The filing is an advance notice of intent to sell; the actual sale may or may not occur, but the pattern of persistent insider selling is notable.
- No cross-filing context (earnings, M&A, or other material events) was provided to explain the selling.
- Historical reports on ANAB show a 33% win rate at T+20 with an average return of -9.38%, suggesting the stock has underperformed following prior filings.
Financial Impact
CEO selling ~$1.0M in this notice, with ~$7.5M sold in the prior two weeks; total insider sales represent a small fraction of the $1.5B market cap but are concentrated and persistent.
Risk Factors
- CEO selling may signal lack of confidence in near-term prospects or upcoming negative news.
- Heavy insider selling could pressure the stock price as the market interprets the pattern.
- The stock's historical T+20 performance following filings has been poor (33% win rate, -9.38% avg return).
Market Snapshot
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-005601 |
| Document: 0001950047-26-005601-index.html | 0001950047-26-005601 |
| Document: 0001950047-26-005601.txt | 0001950047-26-005601 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 11, 2026
1d ago
|
144
| $54.24 awaiting T+1 | awaiting T+1 | — | $56.07 (−3.38%) |
|
Jun 10, 2026
2d ago
|
144
| $51.96 awaiting T+1 | awaiting T+1 | — | $56.07 (−7.91%) |
|
Jun 8, 2026
4d ago
|
144
| $51.38 awaiting T+1 | awaiting T+1 | — | $56.07 (−9.14%) |
|
Jun 5, 2026
7d ago
|
144
| $50.58 awaiting T+1 | awaiting T+1 | — | $56.07 (−10.85%) |
|
Jun 5, 2026
7d ago
|
144
| $51.33 awaiting T+1 | awaiting T+1 | — | $56.07 (−9.23%) |
|
Jun 3, 2026
9d ago
|
144
| $51.67 $50.37 | ▲ +2.52% | ▼ −0.08% | $56.07 (−8.52%) |
|
Jun 1, 2026
11d ago
|
144
| $51.26 $51.24 | ▲ +0.04% | ▼ −0.68% | $56.07 (−9.38%) |
|
May 29, 2026
14d ago
|
8-K
| $53.14 $51.26 | ▼ −3.54% | ▼ −3.69% | $56.07 (+5.51%) |
|
May 28, 2026
15d ago
|
144
| $55.67 $53.14 | ▼ −4.54% | ▼ −4.80% | $56.07 (+0.72%) |
|
May 27, 2026
16d ago
|
144
| $57.02 $55.67 | ▲ +2.37% | ▲ +2.61% | $56.07 (+1.67%) |
US Market Status
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