ALFACELL CORP (ACEL) is a publicly traded company in the Unknown sector. Across all available filings, 28 corporate insiders have executed 656 transactions totaling $40.0M, demonstrating a bearish sentiment with -$39.7M in net insider flow. The most recent transaction on Dec 24, 2025 involved a sale of 5,000 shares valued at $57.5K.
No significant insider buying has been recorded for ACEL in the recent period.
No significant insider selling has been recorded for ACEL in the recent period.
Based on recent SEC filings, insider sentiment for ACEL is bearish with an Insider Alignment Score of 0/100 and a net flow of -$39.7M. Insiders are reducing their positions, though this can be driven by factors unrelated to company outlook.
Insider trading at ALFACELL CORP (ACEL) refers to stock transactions made by corporate insiders—executives, directors, and beneficial owners holding more than 10% of the company's shares. These individuals have access to material non-public information and are required by law to report their trades to the SEC within two business days. Currently, 28 insiders are actively trading ACEL stock, having executed 656 transactions in the past 90 days. The most active insider is Gordon Rubenstein (Executive), who has made 79 transactions totaling $12.4M.
Get notified when executives and directors at ACEL file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Dec 24, 2025 | Harmer Derek | Executive | Sale | 5,000 | $11.50 | $57.5K | |
| Dec 23, 2025 | Harmer Derek | Executive | Sale | 5,000 | $11.50 | $57.5K | |
| Dec 15, 2025 | Harmer Derek | Executive | Sale | 10,000 | $11.11 | $111.1K | |
| Dec 15, 2025 | Rubenstein Gordon | Executive | Gift | 200 | $N/A | $0 | |
| Dec 15, 2025 | Rubenstein Gordon | Executive | Gift | 200 | $N/A | $0 | |
| Dec 15, 2025 | Rubenstein Gordon | Executive | Gift | 200 | $N/A | $0 | |
| Dec 15, 2025 | W. Ruttenberg David | Executive | Sale | 12,500 | $11.20 | $140.0K | |
| Dec 15, 2025 | W. Ruttenberg David | Executive | Sale | 12,500 | $11.19 | $139.9K | |
| Dec 15, 2025 | Kozlik Christen | Executive | Option Exercise | 1,875 | $N/A | $0 | |
| Dec 15, 2025 | Kozlik Christen | Executive | Payment | 550 | $11.26 | $6.2K | |
| Dec 15, 2025 | H. Rubenstein Andrew | Executive | Gift | 13,200 | $N/A | $0 | |
| Dec 14, 2025 | T. Phelan Mark | Executive | Payment | 523 | $11.30 | $5.9K | |
| Dec 14, 2025 | T. Phelan Mark | Executive | Option Exercise | 1,784 | $N/A | $0 | |
| Dec 14, 2025 | Harmer Derek | Executive | Payment | 542 | $11.30 | $6.1K | |
| Dec 14, 2025 | Harmer Derek | Executive | Option Exercise | 1,847 | $N/A | $0 |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Sale(S) | 214 | $39.8M | 79.8% |
Award(A) | 33 | $3.6M | 7.1% |
Exercise(M) | 187 | $2.8M | 5.6% |
Payment(F) | 119 | $2.6M | 5.3% |
Exercise (Options)(X) | 8 | $960.0K | 1.9% |
Purchase(P) | 17 | $127.6K | 0.3% |
Gift(G) | 55 | $0 | 0.0% |
Other(J) | 8 | $0 | 0.0% |
Conversion(C) | 14 | $0 | 0.0% |
Disposition(D) | 1 | $0 | 0.0% |
Insider selling pressure at ALFACELL CORP has increased, with 28 insiders executing 656 transactions across all time. Total sales of $39.8M significantly outpace purchases of $127.6K, resulting in a net outflow of $39.7M. This selling activity appears largely discretionary, which may warrant closer attention from investors.