Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 16 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

16 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
May 22, 2007 CENTA S 14,818 $13.31 $197,228 25,182 Direct -37.05% Disposed 221.9% (price as of 2026-10-02)
May 22, 2007 CENTA S 7,309 $14.26 $104,226 11,350 Direct -39.17% Disposed 200.5% (price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
March 4, 2008 CENTA Stock Option (right to buy) Class A Common Stock (80,000) $4.60 March 4, 2014 80,000 Acquired
May 23, 2007 CENTA Stock Option (Right to Buy) [F1] Class A Common Stock (36,000) $13.83 May 23, 2015 36,000 Acquired
May 22, 2007 CENTA Stock Option (right to buy) Class A Common Stock (10,000) $10.39 Aug. 21, 2010 10,000 Disposed
May 22, 2007 CENTA Stock Option (right to buy) Common Stock (5,000) $10.47 Aug. 21, 2010 5,000 Disposed
Dec. 14, 2005 CENTA Stock Option (right to buy) [F2] Common Stock (15,000) $45.44 Dec. 14, 2013 15,000 Acquired
Aug. 20, 2004 CENTA Stock Option (right to buy) [F2] Common Stock (20,000) $31.25 Aug. 20, 2010 20,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Aug. 24, 2004 CENTA No Securities Beneficially Owned. 0 Direct