MARTEK BIOSCIENCES CORP (MATK) is a publicly traded company in the Unknown sector. Across all available filings, 19 corporate insiders have executed 161 transactions totaling $505.5M, demonstrating a bullish sentiment with $501.8M in net insider flow. The most recent transaction on Feb 25, 2011 involved a transaction of 6,048 shares valued at $0.
No significant insider buying has been recorded for MATK in the recent period.
No significant insider selling has been recorded for MATK in the recent period.
Based on recent SEC filings, insider sentiment for MATK is bullish with an Insider Alignment Score of 100/100 and a net flow of $501.8M. Insiders are accumulating shares, which historically signals confidence in the company's future performance.
Insider trading at MARTEK BIOSCIENCES CORP (MATK) 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, 19 insiders are actively trading MATK stock, having executed 161 transactions in the past 90 days. The most active insider is Dsm N.v. Royal (Executive), who has made 4 transactions totaling $503.2M.
Get notified when executives and directors at MATK file new Form 4 transactions
Date | Insider | Title | Type | Shares | Price | Value | Flags |
|---|---|---|---|---|---|---|---|
| Feb 25, 2011 | Beery James | Executive | Award | 6,048 | $N/A | $0 | |
| Feb 25, 2011 | Beery James | Executive | Disposition | 6,048 | $31.50 | $190.5K | |
| Feb 25, 2011 | J. D'andrea Harry | Executive | Disposition | 2,533 | $31.50 | $79.8K | |
| Feb 25, 2011 | J. D'andrea Harry | Executive | Award | 2,533 | $N/A | $0 | |
| Feb 25, 2011 | G. Devine Michael | Executive | Disposition | 2,533 | $31.50 | $79.8K | |
| Feb 25, 2011 | G. Devine Michael | Executive | Award | 2,533 | $N/A | $0 | |
| Feb 25, 2011 | J. Flanagan Robert | Executive | Award | 2,533 | $N/A | $0 | |
| Feb 25, 2011 | J. Flanagan Robert | Executive | Disposition | 2,533 | $31.50 | $79.8K | |
| Feb 25, 2011 | B. Kawalek Polly | Executive | Award | 2,533 | $N/A | $0 | |
| Feb 25, 2011 | B. Kawalek Polly | Executive | Disposition | 2,533 | $31.50 | $79.8K | |
| Feb 25, 2011 | C. Keller Jerome | Executive | Disposition | 2,533 | $31.50 | $79.8K | |
| Feb 25, 2011 | C. Keller Jerome | Executive | Award | 2,533 | $N/A | $0 | |
| Feb 25, 2011 | Douglas J. Macmaster Jr | Executive | Disposition | 2,533 | $31.50 | $79.8K | |
| Feb 25, 2011 | Douglas J. Macmaster Jr | Executive | Award | 2,533 | $N/A | $0 | |
| Feb 25, 2011 | H. Mayer Robert | Executive | Award | 6,048 | $N/A | $0 |
| TYPE | COUNT | VALUE | % |
|---|---|---|---|
Purchase(P) | 15 | $503.7M | 94.1% |
Tender(U) | 23 | $18.9M | 3.5% |
Disposition(D) | 16 | $8.2M | 1.5% |
Sale(S) | 8 | $1.8M | 0.3% |
Exercise(M) | 55 | $1.5M | 0.3% |
Payment(F) | 23 | $1.1M | 0.2% |
Award(A) | 18 | $0 | 0.0% |
Gift(G) | 3 | $0 | 0.0% |
Insiders at MARTEK BIOSCIENCES CORP are accumulating shares at an accelerated pace. With 19 insiders making 161 transactions totaling $503.7M in purchases versus $1.8M in sales, the net buying activity of $501.8M signals strong executive confidence. Dsm N.v. Royal (Executive) leads the buying activity with $503.2M in transactions across all time.