Debanjan Ray

Insider

First SEC filing: May 18, 2017 · Latest: May 18, 2017

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

CTMX selling Aug. 1, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 22 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

22 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 1, 2018	CTMX	M 10b5-1	290	—	—	19,220 Direct	+1.53%	Acquired	(price as of 2026-08-19)
Aug. 1, 2018	CTMX	M 10b5-1	2,710	—	—	0 Direct	—	Acquired	(price as of 2026-08-19)
Aug. 1, 2018	CTMX	S 10b5-1	3,000	$26.05	$78,150	5,928 Direct	-33.60%	Disposed	-86.5% (price as of 2026-08-19)
Aug. 1, 2018	CTMX	M 10b5-1	290	$1.45	$420	8,928 Direct	+3.36%	Acquired	142.8% (price as of 2026-08-19)
Aug. 1, 2018	CTMX	M 10b5-1	2,710	$1.26	$3,415	8,638 Direct	+45.72%	Acquired	179.4% (price as of 2026-08-19)
July 2, 2018	CTMX	M 10b5-1	3,000	—	—	2,710 Direct	-52.54%	Disposed	(price as of 2026-08-19)
July 2, 2018	CTMX	S 10b5-1	3,000	$22.56	$67,680	5,928 Direct	-33.60%	Disposed	-84.4% (price as of 2026-08-19)
July 2, 2018	CTMX	M 10b5-1	3,000	$1.26	$3,780	8,928 Direct	+50.61%	Acquired	179.4% (price as of 2026-08-19)
June 1, 2018	CTMX	M 10b5-1	3,000	—	—	5,710 Direct	-34.44%	Disposed	(price as of 2026-08-19)
June 1, 2018	CTMX	S 10b5-1	3,000	$25.93	$77,790	5,928 Direct	-33.60%	Disposed	-86.4% (price as of 2026-08-19)
June 1, 2018	CTMX	M 10b5-1	3,000	$1.26	$3,780	8,928 Direct	+50.61%	Acquired	179.4% (price as of 2026-08-19)
May 31, 2018	CTMX	A	1,187	$17.90	$21,247	5,928 Direct	+25.04%	Acquired	-80.3% (price as of 2026-08-19)
May 1, 2018	CTMX	M 10b5-1	3,000	—	—	8,710 Direct	-25.62%	Disposed	(price as of 2026-08-19)
May 1, 2018	CTMX	S 10b5-1	3,000	$26.52	$79,560	4,741 Direct	-38.75%	Disposed	-86.7% (price as of 2026-08-19)
May 1, 2018	CTMX	M 10b5-1	3,000	$1.26	$3,780	7,741 Direct	+63.28%	Acquired	179.4% (price as of 2026-08-19)
April 2, 2018	CTMX	M	3,000	—	—	11,710 Direct	-20.39%	Disposed	(price as of 2026-08-19)
April 2, 2018	CTMX	S 10b5-1	3,000	$28.12	$84,360	4,741 Direct	-38.75%	Disposed	-87.5% (price as of 2026-08-19)
April 2, 2018	CTMX	M	3,000	$1.26	$3,780	7,741 Direct	+63.28%	Acquired	179.4% (price as of 2026-08-19)
March 2, 2018	CTMX	M	14,485	—	—	20,000 Direct	-42.00%	Disposed	(price as of 2026-08-19)
March 2, 2018	CTMX	M	5,515	—	—	14,710 Direct	-27.27%	Disposed	(price as of 2026-08-19)
March 2, 2018	CTMX	S 10b5-1	1,944	$31.02	$60,303	4,741 Direct	-29.08%	Disposed	-88.7% (price as of 2026-08-19)
March 2, 2018	CTMX	S 10b5-1	12,541	$30.41	$381,372	6,685 Direct	-65.23%	Disposed	-88.4% (price as of 2026-08-19)
March 2, 2018	CTMX	M	14,485	$1.13	$16,368	19,226 Direct	+305.53%	Acquired	211.5% (price as of 2026-08-19)
March 2, 2018	CTMX	S 10b5-1	5,515	$30.06	$165,781	4,741 Direct	-53.77%	Disposed	-88.3% (price as of 2026-08-19)
March 2, 2018	CTMX	M	5,515	$1.26	$6,949	10,256 Direct	+116.33%	Acquired	179.4% (price as of 2026-08-19)
March 1, 2018	CTMX	M	13,000	—	—	20,225 Direct	-39.13%	Disposed	(price as of 2026-08-19)
March 1, 2018	CTMX	S 10b5-1	13,000	$29.40	$382,200	4,741 Direct	-73.28%	Disposed	-88.0% (price as of 2026-08-19)
March 1, 2018	CTMX	M	13,000	$1.26	$16,380	17,741 Direct	+274.20%	Acquired	179.4% (price as of 2026-08-19)
Feb. 1, 2018	CTMX	S 10b5-1	2,548	$26.69	$68,006	4,741 Direct	-34.96%	Disposed	-86.8% (price as of 2026-08-19)
Jan. 24, 2018	CTMX	A	100,000	—	—	100,000 Direct	—	Acquired	(price as of 2026-08-19)
Jan. 2, 2018	CTMX	S 10b5-1	2,500	$21.11	$52,775	7,289 Direct	-25.54%	Disposed	-83.3% (price as of 2026-08-19)
Dec. 1, 2017	CTMX	S 10b5-1	2,500	$20.58	$51,450	9,789 Direct	-20.34%	Disposed	-82.9% (price as of 2026-08-19)
Nov. 30, 2017	CTMX	A	163	$12.15	$1,980	12,289 Direct	+1.34%	Acquired	-71.0% (price as of 2026-08-19)
Nov. 1, 2017	CTMX	S 10b5-1	2,500	$20.00	$50,000	12,126 Direct	-17.09%	Disposed	-82.4% (price as of 2026-08-19)
Oct. 2, 2017	CTMX	S 10b5-1	2,500	$18.10	$45,250	14,626 Direct	-14.60%	Disposed	-80.6% (price as of 2026-08-19)
Sept. 1, 2017	CTMX	S 10b5-1	2,500	$17.17	$42,925	17,126 Direct	-12.74%	Disposed	-79.5% (price as of 2026-08-19)
Aug. 9, 2017	CTMX	S 10b5-1	2,500	$15.00	$37,500	19,626 Direct	-11.30%	Disposed	-76.5% (price as of 2026-08-19)
July 3, 2017	CTMX	S 10b5-1	2,500	$15.47	$38,675	22,126 Direct	-10.15%	Disposed	-77.2% (price as of 2026-08-19)
May 31, 2017	CTMX	A	2,698	$8.68	$23,419	24,626 Direct	+12.30%	Acquired	-59.4% (price as of 2026-08-19)

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
Aug. 1, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (290)	$1.45	Feb. 27, 2024	290	Acquired
Aug. 1, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (2,710)	$1.26	Dec. 10, 2023	2,710	Acquired
July 2, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (3,000)	$1.26	Dec. 10, 2023	3,000	Disposed
June 1, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (3,000)	$1.26	Dec. 10, 2023	3,000	Disposed
May 1, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (3,000)	$1.26	Dec. 10, 2023	3,000	Disposed
April 2, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (3,000)	$1.26	Dec. 10, 2023	3,000	Disposed
March 2, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (14,485)	$1.13	Sept. 13, 2021	14,485	Disposed
March 2, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (5,515)	$1.26	Dec. 10, 2023	5,515	Disposed
March 1, 2018	CTMX	Stock Option (Right to Buy)	Common Stock (13,000)	$1.26	Dec. 10, 2023	13,000	Disposed
Jan. 24, 2018	CTMX	Stock Option (right to buy)	Common Stock (100,000)	$25.82	Jan. 23, 2028	100,000	Acquired

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

Initial ownership (Form 3) 10 holdings

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

Date	Ticker	Security	Shares	Ownership
May 18, 2017	CTMX	Common Stock	21,928	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (34,485)	34,485	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (33,225)	33,225	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (19,510)	19,510	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (30,640)	30,640	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (85,938)	85,938	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (41,090)	41,090	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (45,000)	45,000	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (97,500)	97,500	Direct
May 18, 2017	CTMX	Stock Option (Right to Buy)→ Common Stock (30,000)	30,000	Direct