SEC Form 4Coverage since Jun 13, 2026
$APTOF insider trading
Over the last 12 months, Aptose Biosciences insiders reported no purchases and 9 sales totaling $1.1M across SEC Form 4 filings.
- Bought · 12m
- — 0 events
- Sold · 12m
- $1.1M 9 events
- Events · 12m
- 9 Form 4 filings, grouped
- Insiders · 12m
- 8 distinct reporters
- 10b5-1 share
- 0% pre-arranged plans
Side
Price · $APTOF · 12Mvia TradingView
Top insiders · 12m
Payne Fletcher—2× · $420
Vincent Mark D.—1× · $24
Whitehead Warren—1× · $57
BURGER DENIS R—1× · $120
Bejar Rafael—1× · $420
All insider trades
9 events
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | Seizinger Bernd R. | ▽ Sale to issuer | 17,000 | $1.72 | $29K | -100% | — |
| Jun 30, 2026 | Whitehead Warren | ▽ Sale to issuer | 33 | $1.72 | $57 | -100% | — |
| Jun 30, 2026 | Rice William G.Chair, President & CEO · O·D | ▽ Sale to issuer | 613,252 | $1.72 | $1.1M | -100% | — |
| Jun 30, 2026 | PLATZER ERICH | ▽ Sale to issuer | 1,122 | $1.72 | $2K | -100% | — |
| Jun 30, 2026 | Payne Fletcher | ▽ Sale to issuer | 22 | $1.72 | $38 | -100% | indirect |
| Jun 30, 2026 | Payne Fletcher | ▽ Sale to issuer | 222 | $1.72 | $382 | -100% | — |
| Jun 30, 2026 | BURGER DENIS R | ▽ Sale to issuer | 70 | $1.72 | $120 | -100% | — |
| Jun 30, 2026 | Bejar Rafael | ▽ Sale to issuer | 244 | $1.72 | $420 | -100% | — |
| Jun 13, 2026 | Vincent Mark D. | ▽ Sale to issuer | 14 | $1.72 | $24 | -100% | late |
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $APTOF feed.