ALTEON INC /DE

ALTEON INC /DE insiders are currently net buyers of ALT stock, showing bullish sentiment over the past 90 days. Executives have purchased $24.2M while selling $3.9M, resulting in a positive net flow of $20.3M. This buying activity represents 86% of total transaction volume.

ALTEON INC /DE has 33 active insiders who have filed SEC Form 4 transactions in the past 90 days. Management Iii, Llc Vhcp (Executive) leads with 7 transactions totaling $11.4M. Co-investment Holdings Ii, Llc Vhcp (Executive) follows with 1 transactions worth $11.3M. Open-market purchases require insiders to invest their own capital, demonstrating genuine conviction.

The Insider Alignment Score measures the ratio of buying to selling activity on a 0-100 scale. ALTEON INC /DE's current score of 86/100 indicates bullish insider sentiment. Scores above 60 suggest insiders are accumulating shares faster than selling, reflecting $24.2M in purchases versus $3.9M in sales.

The most recent insider transaction occurred on Mar 6, 2026, when Benedict Durso Jerome (Executive) acquired 20,000 shares at $3.54 per share for $70.8K. This appears to be a discretionary trade.

Based on SEC Form 4 filings from the past 90 days, ALT insider trading sentiment is currently bullish with an Alignment Score of 86/100. The net insider flow of $20.3M reflects accumulation, with 86% of volume being purchases.

SEC Form 4 is the primary disclosure mechanism for insider trading at publicly traded companies like ALTEON INC /DE. Corporate insiders must file within two business days of any transaction, making it one of the most timely sources of executive sentiment. At ALT, we track all Form 4 filings—currently showing 326 transactions from 33 insiders over 90 days.

A 10b5-1 plan allows ALTEON INC /DE executives to pre-schedule stock sales when they don't possess material non-public information. At ALT, approximately 0% of recent transactions are 10b5-1 trades. Most trading activity at ALT appears discretionary, making insider signals more meaningful.

You can monitor ALTEON INC /DE (ALT) insider trading activity on this page, which updates within hours of new SEC Form 4 filings. We track all 33 active insiders and provide real-time transaction feeds, the Alignment Score, 10b5-1 vs. discretionary breakdowns, and direct links to SEC EDGAR filings.

Our Alignment Score measures the ratio of insider buying to selling on a scale of 0-100. A score above 70 indicates strong bullish sentiment, while below 30 suggests bearish activity. ALTEON INC /DE's current score of 86/100 indicates strong bullish sentiment with executives accumulating shares. This is calculated from $24.2M in purchases versus $3.9M in sales over 90 days, resulting in a net flow of $20.3M.

SEC Form 4 filings are mandatory reports that ALTEON INC /DE insiders must submit within 2 business days. Each filing includes the insider's name, relationship, transaction type, shares, and price. Transaction codes: P (purchase), S (sale), A (award), M (option exercise), G (gift). At ALT, the most common type is "M" with 19 occurrences. The most recent Form 4 was filed on Mar 6, 2026 by Benedict Durso Jerome.

Rule 10b5-1 allows corporate insiders to establish pre-scheduled trading plans when they don't possess material non-public information. At ALTEON INC /DE, approximately 0% of recent transactions are executed under 10b5-1 plans, while 100% appear to be discretionary trades. The low percentage means most insider activity at ALT represents discretionary decisions with more informational value.