Stanley Stern

Insider

First SEC filing: May 6, 2015 · Latest: May 6, 2015

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

TCX
CHRN

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 20 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.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 9, 2022	CHRN	A	51,721	—	—	79,221 Direct	+188.08%	Acquired	(price as of 2026-08-20)
June 10, 2021	CHRN	A	18,265	—	—	27,500 Direct	+197.78%	Acquired	(price as of 2026-08-20)
July 23, 2020	CHRN	A	7,383	—	—	9,235 Direct	+398.65%	Acquired	(price as of 2026-08-20)
Jan. 16, 2020	CHRN	A	136,496	—	—	136,496 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 16, 2020	CHRN	A	27,778	$0.45	$12,500	27,778 Direct	—	Acquired	-76.2% (price as of 2026-08-20)
Aug. 3, 2018	CHRN	A	41,000	—	—	41,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 7, 2010	TCX	A	27,500	$0.62	$17,050	27,500 Direct	—	Acquired	309.3% (price as of 2026-08-20)
May 17, 2010	TCX	A	25,000	$0.70	$17,500	25,000 Direct	—	Acquired	262.5% (price as of 2026-08-20)
Sept. 8, 2009	TCX	A	27,500	$0.56	$15,400	27,500 Direct	—	Acquired	353.1% (price as of 2026-08-20)
Sept. 9, 2008	TCX	A	27,500	$0.48	$13,200	27,500 Direct	—	Acquired	428.6% (price as of 2026-08-20)
June 2, 2008	TCX	M	15,000	$0.27	$4,050	0 Direct	-100.00%	Disposed	839.8% (price as of 2026-08-20)
June 2, 2008	TCX	M	15,000	$0.27	$4,050	203,850 Direct	+7.94%	Acquired	839.8% (price as of 2026-08-20)
May 23, 2008	TCX	A	20,000	$0.60	$12,000	20,000 Direct	—	Acquired	322.9% (price as of 2026-08-20)
June 13, 2007	TCX	M	15,000	—	—	0 Direct	—	Acquired	(price as of 2026-08-20)
June 13, 2007	TCX	M	15,000	$0.50	$7,500	188,850 Direct	+8.63%	Acquired	407.5% (price as of 2026-08-20)
June 7, 2007	TCX	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 22, 2006	TCX	A	10,000	—	—	15,000 Direct	+200.00%	Acquired	(price as of 2026-08-20)
Aug. 25, 2006	TCX	M	35,000	$0.67	$23,450	0 Direct	-100.00%	Disposed	278.7% (price as of 2026-08-20)
Aug. 25, 2006	TCX	M	35,000	$0.67	$23,450	173,850 Direct	+25.21%	Acquired	278.7% (price as of 2026-08-20)
June 1, 2005	TCX	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)

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.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/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
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

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

Date	Ticker	Security	Shares	Ownership
May 6, 2015	CHRN	Employee Stock Option (right to buy)→ Common Stock (200,000)	200,000	Direct