OPTIMER PHARMACEUTICALS INC

OPTIMER PHARMACEUTICALS INC insiders are currently net buyers of OPTR stock, showing neutral sentiment over the past 90 days. Executives have purchased $11.9M while selling $11.6M, resulting in a positive net flow of $279.9K. This buying activity represents 51% of total transaction volume.

OPTIMER PHARMACEUTICALS INC has 27 active insiders who have filed SEC Form 4 transactions in the past 90 days. Michael N. Chang (Executive) leads with 53 transactions totaling $23.6M. Alain Schreiber (Executive) follows with 15 transactions worth $9.2M. 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. OPTIMER PHARMACEUTICALS INC's current score of 51/100 indicates neutral insider sentiment. Scores between 40-60 represent neutral or mixed activity. With $11.9M in purchases and $11.6M in sales, no strong directional conviction is evident.

The most recent insider transaction occurred on Oct 24, 2013, when E. Altig Anthony (Executive) disposed of 7,500 shares at $10.75 per share for $80.6K. This appears to be a discretionary trade.

Based on SEC Form 4 filings from the past 90 days, OPTR insider trading sentiment is currently neutral with an Alignment Score of 51/100. The balanced activity—$11.9M bought vs $11.6M sold—suggests no strong consensus among insiders.

SEC Form 4 is the primary disclosure mechanism for insider trading at publicly traded companies like OPTIMER PHARMACEUTICALS INC. Corporate insiders must file within two business days of any transaction, making it one of the most timely sources of executive sentiment. At OPTR, we track all Form 4 filings—currently showing 251 transactions from 27 insiders over 90 days.

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

You can monitor OPTIMER PHARMACEUTICALS INC (OPTR) insider trading activity on this page, which updates within hours of new SEC Form 4 filings. We track all 27 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. OPTIMER PHARMACEUTICALS INC's current score of 51/100 indicates neutral sentiment with balanced buying and selling activity. This is calculated from $11.9M in purchases versus $11.6M in sales over 90 days, resulting in a net flow of $279.9K.

SEC Form 4 filings are mandatory reports that OPTIMER PHARMACEUTICALS INC 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 OPTR, the most common type is "D" with 25 occurrences. The most recent Form 4 was filed on Oct 24, 2013 by E. Altig Anthony.

Rule 10b5-1 allows corporate insiders to establish pre-scheduled trading plans when they don't possess material non-public information. At OPTIMER PHARMACEUTICALS INC, 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 OPTR represents discretionary decisions with more informational value.