Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 11 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

11 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Aug. 11, 2008 CHTRP S 10b5-1 9,926 $1.08 $10,720 680,954 Direct -1.44% Disposed 1951.6% (price as of 2026-10-05)
April 1, 2008 CHTRP S 5,953 $0.90 $5,358 722,468 Direct -0.82% Disposed 2361.9% (price as of 2026-10-05)
March 31, 2008 CHTRP S 8,273 $0.90 $7,446 728,421 Direct -1.12% Disposed 2361.9% (price as of 2026-10-05)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Nov. 30, 2009 CHTRP Stock Option Class A Common Stock (90,000) $5.17 Jan. 27, 2014 90,000 Disposed
Nov. 30, 2009 CHTRP Stock Option Class A Common Stock (37,100) $2.84 March 9, 2017 37,100 Disposed
Nov. 30, 2009 CHTRP Stock Option Class A Common Stock (27,285) $1.00 March 10, 2016 27,285 Disposed
Nov. 30, 2009 CHTRP Stock Option Class A Common Stock (48,600) $1.52 March 25, 2015 48,600 Disposed
Nov. 30, 2009 CHTRP Stock Option Class A Common Stock (16,000) $2.85 July 23, 2012 16,000 Disposed

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

Initial ownership (Form 3) 8 holdings

07

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

DateTickerSecuritySharesOwnership
Aug. 2, 2007 CHTRP Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Stock Options→ Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Stock Options→ Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Stock Options→ Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Stock Options→ Class A Common Stock · Direct
Aug. 2, 2007 CHTRP Stock Options→ Class A Common Stock · Direct