Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 31 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 4, 2022 CHRN A 87,787 · · 167,008 Direct +110.81% Acquired (price as of 2026-10-05)
June 9, 2022 CHRN A 51,721 · · 79,221 Direct +188.08% Acquired (price as of 2026-10-05)
June 10, 2021 CHRN A 18,265 · · 27,500 Direct +197.78% Acquired (price as of 2026-10-05)
July 23, 2020 CHRN A 7,383 · · 9,235 Direct +398.65% Acquired (price as of 2026-10-05)
Jan. 16, 2020 CHRN A 136,496 · · 136,496 Direct · Acquired (price as of 2026-10-05)
Jan. 16, 2020 CHRN A 27,778 $0.45 $12,500 27,778 Direct · Acquired -81.6% (price as of 2026-10-05)
Aug. 3, 2018 CHRN A 41,000 · · 41,000 Direct · Acquired (price as of 2026-10-05)
July 5, 2017 CHRN A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-05)
May 24, 2016 CHRN A 9,285 · · 9,285 Direct · Acquired (price as of 2026-10-05)
Sept. 4, 2013 TCX M 27,500 $0.48 $13,200 261,350 Direct +11.76% Acquired 378.1% (price as of 2026-10-05)
Sept. 4, 2013 TCX M 27,500 $0.48 $13,200 0 Direct -100.00% Disposed 378.1% (price as of 2026-10-05)
May 23, 2013 TCX M 20,000 $0.60 $12,000 233,850 Direct +9.35% Acquired 282.5% (price as of 2026-10-05)
May 23, 2013 TCX M 20,000 $0.60 $12,000 0 Direct -100.00% Disposed 282.5% (price as of 2026-10-05)
Sept. 11, 2012 TCX A 27,500 $1.38 $37,950 27,500 Direct · Acquired 66.3% (price as of 2026-10-05)
June 1, 2012 TCX M 10,000 $0.99 $9,900 213,850 Direct +4.91% Acquired 131.8% (price as of 2026-10-05)
June 1, 2012 TCX M 10,000 $0.99 $9,900 0 Direct -100.00% Disposed 131.8% (price as of 2026-10-05)
Sept. 6, 2011 TCX A 27,500 $0.75 $20,625 27,500 Direct · Acquired 206.0% (price as of 2026-10-05)
Sept. 7, 2010 TCX A 27,500 $0.62 $17,050 27,500 Direct · Acquired 270.2% (price as of 2026-10-05)
May 17, 2010 TCX A 25,000 $0.70 $17,500 25,000 Direct · Acquired 227.9% (price as of 2026-10-05)
Sept. 8, 2009 TCX A 27,500 $0.56 $15,400 27,500 Direct · Acquired 309.8% (price as of 2026-10-05)
Sept. 9, 2008 TCX A 27,500 $0.48 $13,200 27,500 Direct · Acquired 378.1% (price as of 2026-10-05)
June 2, 2008 TCX M 15,000 $0.27 $4,050 0 Direct -100.00% Disposed 750.0% (price as of 2026-10-05)
June 2, 2008 TCX M 15,000 $0.27 $4,050 203,850 Direct +7.94% Acquired 750.0% (price as of 2026-10-05)
May 23, 2008 TCX A 20,000 $0.60 $12,000 20,000 Direct · Acquired 282.5% (price as of 2026-10-05)
June 13, 2007 TCX M 15,000 · · 0 Direct · Acquired (price as of 2026-10-05)
June 13, 2007 TCX M 15,000 $0.50 $7,500 188,850 Direct +8.63% Acquired 359.0% (price as of 2026-10-05)
June 7, 2007 TCX A 10,000 · · 10,000 Direct · Acquired (price as of 2026-10-05)
Nov. 22, 2006 TCX A 10,000 · · 15,000 Direct +200.00% Acquired (price as of 2026-10-05)
Aug. 25, 2006 TCX M 35,000 $0.67 $23,450 0 Direct -100.00% Disposed 242.5% (price as of 2026-10-05)
Aug. 25, 2006 TCX M 35,000 $0.67 $23,450 173,850 Direct +25.21% Acquired 242.5% (price as of 2026-10-05)
June 1, 2005 TCX A 15,000 · · 15,000 Direct · Acquired (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
Jan. 16, 2020 CHRN Stock Option (right to buy) Common Stock (136,496) $0.38 Jan. 16, 2030 136,496 Acquired
Aug. 3, 2018 CHRN Employee Stock Option (right to buy) Common Stock (41,000) $1.79 Aug. 3, 2028 41,000 Acquired
July 5, 2017 CHRN Stock Option (right to buy) Common Stock (25,000) $2.27 July 5, 2027 25,000 Acquired
May 24, 2016 CHRN Stock Option (right to buy) Common Stock (9,285) $5.70 May 24, 2026 9,285 Acquired
Sept. 4, 2013 TCX Stock Option (Right to Buy) Common Stock (27,500) $0.48 Sept. 9, 2013 27,500 Disposed
May 23, 2013 TCX Stock Option (Right to Buy) Common Stock (20,000) $0.60 May 23, 2013 20,000 Disposed
Sept. 11, 2012 TCX Stock Option (Right to Buy) Common Stock (27,500) $1.38 Sept. 10, 2017 27,500 Acquired
June 1, 2012 TCX Stock Option (Right to Buy) Common Stock (10,000) $0.99 June 6, 2012 10,000 Disposed
Sept. 6, 2011 TCX Stock Option (Right to Buy) Common Stock (27,500) $0.75 Sept. 5, 2016 27,500 Acquired
Sept. 7, 2010 TCX Stock Option (Right to Buy) Common Stock (27,500) $0.62 Sept. 7, 2015 27,500 Acquired
May 17, 2010 TCX Stock Options (Right to Buy) Common Stock (25,000) $0.70 May 16, 2015 25,000 Acquired
Sept. 8, 2009 TCX Stock Option (Right to Buy) Common Stock (27,500) $0.56 Sept. 8, 2014 27,500 Acquired
Sept. 9, 2008 TCX Stock Option (Right to Buy) Common Stock (27,500) $0.48 Sept. 9, 2013 27,500 Acquired
June 2, 2008 TCX Stock Option (Right to Buy) Common Stock (15,000) $0.27 June 2, 2008 15,000 Disposed
May 23, 2008 TCX Stock Option (Right to Buy) Common Stock (20,000) $0.60 May 23, 2013 20,000 Acquired
June 13, 2007 TCX Stock Option (right to buy) Common Stock (15,000) $0.50 June 13, 2007 15,000 Acquired
June 7, 2007 TCX Stock Option (right to buy) Common Stock (10,000) $0.99 June 6, 2012 10,000 Acquired
Nov. 22, 2006 TCX Stock Option (right to buy) Common Stock (15,000) $0.80 Nov. 21, 2011 10,000 Acquired
Aug. 25, 2006 TCX Stock Option (right to buy) Common Stock (35,000) $0.67 Aug. 27, 2006 35,000 Disposed
June 1, 2005 TCX Stock Option (right to buy) Common Stock (15,000) $0.85 June 1, 2010 15,000 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
May 6, 2015 CHRN Employee Stock Option (right to buy)→ Common Stock (200,000) 200,000 Direct