Christos Richards

CIK 1622055 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 6, 2014 · Latest: Nov. 6, 2014

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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 21 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

21 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 17, 2026	CDXS	A	66,350	—	—	66,350 Direct	—	Acquired	(price as of 2026-08-20)
June 10, 2025	CDXS	A	40,983	—	—	85,133 Direct	+92.83%	Acquired	(price as of 2026-08-20)
Jan. 14, 2025	CDXS	A	44,150	—	—	44,150 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 11, 2019	CHRS	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 1, 2018	CHRS	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
May 17, 2017	CHRS	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
May 24, 2016	CHRS	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 13, 2015	CHRS	S	4,012	$27.93	$112,055	63,836 Direct	-5.91%	Disposed	-95.3% (price as of 2026-08-20)
Nov. 13, 2015	CHRS	S	7,988	$27.38	$218,711	67,848 Direct	-10.53%	Disposed	-95.2% (price as of 2026-08-20)
Nov. 12, 2015	CHRS	S	3,000	$27.23	$81,690	75,836 Direct	-3.81%	Disposed	-95.2% (price as of 2026-08-20)
April 1, 2015	CHRS	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
April 1, 2015	CHRS	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	C	2,624	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	C	12,672	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	C	39,991	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	J	1	—	—	12,672 Direct	-0.01%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	X	429	$0.02	$9	12,673 Direct	+3.50%	Acquired	6425.0% (price as of 2026-08-20)
Nov. 12, 2014	CHRS	X	429	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	X	26,505	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	C	2,624	—	—	78,836 Direct	+3.44%	Acquired	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	C	12,672	—	—	76,212 Direct	+19.94%	Acquired	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	C	39,991	—	—	63,540 Direct	+169.82%	Acquired	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	J	2,956	—	—	23,549 Direct	-11.15%	Disposed	(price as of 2026-08-20)
Nov. 12, 2014	CHRS	X	26,505	$1.67	$44,263	26,505 Direct	—	Acquired	-21.9% (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
June 17, 2026	CDXS	Stock Option (Right to Buy)	Common Stock (66,350)	$2.48	June 17, 2036	66,350	Acquired
Jan. 11, 2019	CHRS	Stock Option (Right to Buy)	Common Stock (20,000)	$12.37	Jan. 11, 2029	20,000	Acquired
Feb. 1, 2018	CHRS	Stock Option (Right to Buy)	Common Stock (20,000)	$10.05	Feb. 1, 2028	20,000	Acquired
May 17, 2017	CHRS	Stock Option (Right to Buy)	Common Stock (20,000)	$23.80	May 17, 2027	20,000	Acquired
May 24, 2016	CHRS	Stock Option (Right to Buy)	Common Stock (10,000)	$18.28	May 24, 2026	10,000	Acquired
April 1, 2015	CHRS	Stock Option (Right to Buy)	Common Stock (20,000)	$29.00	March 31, 2025	20,000	Acquired
April 1, 2015	CHRS	Stock Option (Right to Buy)	Common Stock (20,000)	$29.00	March 31, 2025	20,000	Acquired
Nov. 12, 2014	CHRS	Series C Preferred Stock	Common Stock (2,624)	—	—	2,624	Disposed
Nov. 12, 2014	CHRS	Series B Preferred Stock	Common Stock (12,672)	—	—	12,672	Disposed
Nov. 12, 2014	CHRS	Series A Preferred Stock	Common Stock (39,991)	—	—	39,991	Disposed
Nov. 12, 2014	CHRS	Series B Preferred Stock	Common Stock (1)	—	—	1	Disposed
Nov. 12, 2014	CHRS	Series B Preferred Stock	Common Stock (429)	—	—	429	Acquired
Nov. 12, 2014	CHRS	Warrant to Purchase Series B Preferred Stock	Series B Preferred Stock (429)	$0.02	—	429	Disposed
Nov. 12, 2014	CHRS	Warrant to Purchase Common Stock	Common Stock (26,505)	$1.67	—	26,505	Disposed

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

Initial ownership (Form 3) 7 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 6, 2014	CHRS	Series A Preferred Stock→ Common Stock (39,991)	39,991	Direct
Nov. 6, 2014	CHRS	Series B Preferred Stock→ Common Stock (12,244)	12,244	Direct
Nov. 6, 2014	CHRS	Series C Preferred Stock→ Common Stock (2,624)	2,624	Direct
Nov. 6, 2014	CHRS	Warrant to Purchase Series B Preferred Stock→ Series B Preferred Stock (429)	429	Direct
Nov. 6, 2014	CHRS	Warrant to Purchase Common Stock→ Common Stock (26,505)	26,505	Direct
Nov. 6, 2014	CHRS	Stock Option (Right to Buy)→ Common Stock (29,994)	29,994	Direct
Nov. 6, 2014	CHRS	Stock Option (Right to Buy)→ Common Stock (14,997)	14,997	Direct