Gabriel Leung

Insider

First SEC filing: June 5, 2026 · Latest: June 5, 2026

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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) 1 sells (S) Net: $-46,443 + 48 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

48 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 3, 2026	NVCR	A	16,999	—	—	16,999 Direct	—	Acquired	(price as of 2026-08-20)
June 3, 2026	NVCR	A	11,610	—	—	101,109 Direct	+12.97%	Acquired	(price as of 2026-08-20)
June 2, 2026	NVCR	S	2,945	$15.77	$46,443	89,499 Direct	-3.19%	Disposed	15.3% (price as of 2026-08-20)
Sept. 10, 2019	NVCR	M	5,000	—	—	14,743 Direct	-25.33%	Disposed	(price as of 2026-08-20)
Sept. 10, 2019	NVCR	S 10b5-1	5,000	$76.63	$383,150	69,504 Direct	-6.71%	Disposed	-76.3% (price as of 2026-08-20)
Sept. 10, 2019	NVCR	M	5,000	$3.44	$17,200	74,504 Direct	+7.19%	Acquired	428.5% (price as of 2026-08-20)
Aug. 12, 2019	NVCR	M	5,000	—	—	19,743 Direct	-20.21%	Disposed	(price as of 2026-08-20)
Aug. 12, 2019	NVCR	S 10b5-1	5,000	$86.45	$432,250	69,504 Direct	-6.71%	Disposed	-79.0% (price as of 2026-08-20)
Aug. 12, 2019	NVCR	M	5,000	$3.44	$17,200	74,504 Direct	+7.19%	Acquired	428.5% (price as of 2026-08-20)
July 10, 2019	NVCR	M	5,000	—	—	24,743 Direct	-16.81%	Disposed	(price as of 2026-08-20)
July 10, 2019	NVCR	S 10b5-1	5,000	$64.83	$324,150	69,504 Direct	-6.71%	Disposed	-72.0% (price as of 2026-08-20)
July 10, 2019	NVCR	M	5,000	$3.44	$17,200	74,504 Direct	+7.19%	Acquired	428.5% (price as of 2026-08-20)
June 19, 2019	NVCR	M	25,000	—	—	29,743 Direct	-45.67%	Disposed	(price as of 2026-08-20)
June 19, 2019	NVCR	S 10b5-1	25,000	$60.02	$1,500,500	69,504 Direct	-26.45%	Disposed	-69.7% (price as of 2026-08-20)
June 19, 2019	NVCR	M	25,000	$3.44	$86,000	94,504 Direct	+35.97%	Acquired	428.5% (price as of 2026-08-20)
June 10, 2019	NVCR	M	5,000	—	—	54,743 Direct	-8.37%	Disposed	(price as of 2026-08-20)
June 10, 2019	NVCR	S 10b5-1	100	$55.60	$5,560	69,504 Direct	-0.14%	Disposed	-67.3% (price as of 2026-08-20)
June 10, 2019	NVCR	S 10b5-1	4,900	$55.04	$269,696	69,604 Direct	-6.58%	Disposed	-67.0% (price as of 2026-08-20)
June 10, 2019	NVCR	M	5,000	$3.44	$17,200	74,504 Direct	+7.19%	Acquired	428.5% (price as of 2026-08-20)
May 22, 2019	NVCR	A	6,340	—	—	6,340 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2019	NVCR	A	3,359	—	—	69,504 Direct	+5.08%	Acquired	(price as of 2026-08-20)
May 21, 2019	NVCR	M	6,145	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 21, 2019	NVCR	M	6,145	$48.87	$300,306	66,145 Direct	+10.24%	Acquired	-62.8% (price as of 2026-08-20)
May 10, 2019	NVCR	M	5,000	—	—	59,743 Direct	-7.72%	Disposed	(price as of 2026-08-20)
May 10, 2019	NVCR	S 10b5-1	5,000	$49.79	$248,950	60,000 Direct	-7.69%	Disposed	-63.5% (price as of 2026-08-20)
May 10, 2019	NVCR	M	5,000	$3.44	$17,200	65,000 Direct	+8.33%	Acquired	428.5% (price as of 2026-08-20)
April 10, 2019	NVCR	M	5,000	—	—	64,743 Direct	-7.17%	Disposed	(price as of 2026-08-20)
April 10, 2019	NVCR	S 10b5-1	5,000	$45.95	$229,750	60,000 Direct	-7.69%	Disposed	-60.4% (price as of 2026-08-20)
April 10, 2019	NVCR	M	5,000	$3.44	$17,200	65,000 Direct	+8.33%	Acquired	428.5% (price as of 2026-08-20)
March 11, 2019	NVCR	S 10b5-1	5,000	$48.31	$241,550	60,000 Direct	-7.69%	Disposed	-62.4% (price as of 2026-08-20)
March 11, 2019	NVCR	M	5,000	—	—	69,743 Direct	-6.69%	Disposed	(price as of 2026-08-20)
March 11, 2019	NVCR	M	5,000	$3.44	$17,200	65,000 Direct	+8.33%	Acquired	428.5% (price as of 2026-08-20)
March 1, 2019	NVCR	M	25,000	—	—	74,743 Direct	-25.06%	Disposed	(price as of 2026-08-20)
March 1, 2019	NVCR	S 10b5-1	25,000	$55.01	$1,375,250	60,000 Direct	-29.41%	Disposed	-67.0% (price as of 2026-08-20)
March 1, 2019	NVCR	M	25,000	$3.44	$86,000	85,000 Direct	+41.67%	Acquired	428.5% (price as of 2026-08-20)
Feb. 11, 2019	NVCR	M	5,000	—	—	99,743 Direct	-4.77%	Disposed	(price as of 2026-08-20)
Feb. 11, 2019	NVCR	S 10b5-1	5,000	$49.59	$247,950	60,000 Direct	-7.69%	Disposed	-63.3% (price as of 2026-08-20)
Feb. 11, 2019	NVCR	M	5,000	$3.44	$17,200	65,000 Direct	+8.33%	Acquired	428.5% (price as of 2026-08-20)
Jan. 25, 2019	NVCR	M	20,000	—	—	104,743 Direct	-16.03%	Disposed	(price as of 2026-08-20)
Jan. 25, 2019	NVCR	S 10b5-1	20,000	$50.00	$1,000,000	60,000 Direct	-25.00%	Disposed	-63.6% (price as of 2026-08-20)
Jan. 25, 2019	NVCR	M	20,000	$3.44	$68,800	80,000 Direct	+33.33%	Acquired	428.5% (price as of 2026-08-20)
Jan. 16, 2019	NVCR	M	20,000	—	—	124,743 Direct	-13.82%	Disposed	(price as of 2026-08-20)
Jan. 16, 2019	NVCR	S 10b5-1	20,000	$45.00	$900,000	60,000 Direct	-25.00%	Disposed	-59.6% (price as of 2026-08-20)
Jan. 16, 2019	NVCR	M	20,000	$3.44	$68,800	80,000 Direct	+33.33%	Acquired	428.5% (price as of 2026-08-20)
Jan. 10, 2019	NVCR	M	5,000	—	—	144,743 Direct	-3.34%	Disposed	(price as of 2026-08-20)
Jan. 10, 2019	NVCR	S 10b5-1	5,000	$39.91	$199,550	60,000 Direct	-7.69%	Disposed	-54.4% (price as of 2026-08-20)
Jan. 10, 2019	NVCR	M	5,000	$3.44	$17,200	65,000 Direct	+8.33%	Acquired	428.5% (price as of 2026-08-20)
Jan. 9, 2019	NVCR	M	20,000	—	—	149,743 Direct	+15.42%	Acquired	(price as of 2026-08-20)
Jan. 9, 2019	NVCR	S 10b5-1	6,726	$40.01	$269,107	60,000 Direct	-10.08%	Disposed	-54.6% (price as of 2026-08-20)
Jan. 9, 2019	NVCR	S 10b5-1	13,274	$40.00	$530,960	66,726 Direct	-16.59%	Disposed	-54.6% (price as of 2026-08-20)
Jan. 9, 2019	NVCR	M	20,000	$3.44	$68,800	80,000 Direct	+33.33%	Acquired	428.5% (price as of 2026-08-20)
Dec. 10, 2018	NVCR	M	5,000	—	—	169,743 Direct	+3.04%	Acquired	(price as of 2026-08-20)
Dec. 10, 2018	NVCR	S 10b5-1	5,000	$33.49	$167,450	60,000 Direct	-7.69%	Disposed	-45.7% (price as of 2026-08-20)
Dec. 10, 2018	NVCR	M	5,000	$3.44	$17,200	65,000 Direct	+8.33%	Acquired	428.5% (price as of 2026-08-20)
May 31, 2018	NVCR	A	6,145	—	—	6,145 Direct	—	Acquired	(price as of 2026-08-20)
May 31, 2018	NVCR	A	12,345	—	—	12,345 Direct	—	Acquired	(price as of 2026-08-20)
May 16, 2018	NVCR	M	100,000	—	—	174,743 Direct	+133.79%	Acquired	(price as of 2026-08-20)
May 16, 2018	NVCR	S	40,000	$28.77	$1,150,800	60,000 Direct	-40.00%	Disposed	-36.8% (price as of 2026-08-20)
May 16, 2018	NVCR	M	100,000	$3.44	$344,000	100,000 Direct	—	Acquired	428.5% (price as of 2026-08-20)
May 15, 2018	NVCR	M	40,000	—	—	274,743 Direct	+17.04%	Acquired	(price as of 2026-08-20)
May 15, 2018	NVCR	S	40,000	$28.88	$1,155,200	0 Direct	-100.00%	Disposed	-37.0% (price as of 2026-08-20)
May 15, 2018	NVCR	M	40,000	$3.44	$137,600	40,000 Direct	—	Acquired	428.5% (price as of 2026-08-20)
July 7, 2014	DCTH	A	14,424	—	—	21,485 Direct	+204.28%	Acquired	(price as of 2026-08-20)
Nov. 1, 2013	DCTH	A	16,500	—	—	98,027 Direct	+20.24%	Acquired	(price as of 2026-08-20)
June 5, 2013	DCTH	A	33,000	—	—	81,527 Direct	+68.00%	Acquired	(price as of 2026-08-20)
June 15, 2012	DCTH	A	32,680	—	—	48,527 Direct	+206.22%	Acquired	(price as of 2026-08-20)
June 15, 2012	DCTH	P	7,500	$1.57	$11,775	15,847 Direct	+89.85%	Acquired	-98.5% (price as of 2026-08-20)
May 26, 2011	DCTH	A	8,347	—	—	8,347 Direct	—	Acquired	(price as of 2026-08-20)
March 30, 2011	DCTH	A	15,006	—	—	15,006 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
June 3, 2026	NVCR	Stock Option (Right to Buy)	Ordinary Shares (16,999)	$16.15	June 3, 2036	16,999	Acquired
Sept. 10, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
Aug. 12, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
July 10, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
June 19, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (25,000)	$3.44	Sept. 14, 2021	25,000	Disposed
June 10, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
May 22, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (6,340)	$51.36	May 22, 2029	6,340	Acquired
May 21, 2019	NVCR	Restricted Stock Units	Ordinary Shares (6,145)	$0.00	—	6,145	Disposed
May 10, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
April 10, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
March 11, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
March 1, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (25,000)	$3.44	Sept. 14, 2021	25,000	Disposed
Feb. 11, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
Jan. 25, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (20,000)	$3.44	Sept. 14, 2021	20,000	Disposed
Jan. 16, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (20,000)	$3.44	Sept. 14, 2021	20,000	Disposed
Jan. 10, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Disposed
Jan. 9, 2019	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (20,000)	$3.44	Sept. 14, 2021	20,000	Acquired
Dec. 10, 2018	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (5,000)	$3.44	Sept. 14, 2021	5,000	Acquired
May 31, 2018	NVCR	Restricted Stock Unit	Ordinary Shares (6,145)	—	—	6,145	Acquired
May 31, 2018	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (12,345)	$31.45	May 31, 2028	12,345	Acquired
May 16, 2018	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (100,000)	$3.44	Sept. 15, 2021	100,000	Acquired
May 15, 2018	NVCR	Options to Buy Ordinary Shares	Ordinary Shares (40,000)	$3.44	Sept. 15, 2021	40,000	Acquired
March 30, 2011	DCTH	Stock Option (right to buy)	Common Stock (15,006)	$7.50	March 30, 2021	15,006	Acquired

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

Initial ownership (Form 3) 4 holdings

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

Date	Ticker	Security	Shares	Ownership
Oct. 1, 2015	NVCR	Options to Buy Ordinary Shares→ Ordinary Shares (314,743)	314,743	Direct
Oct. 1, 2015	NVCR	Options to Buy Ordinary Shares→ Ordinary Shares (88,695)	88,695	Direct
Oct. 1, 2015	NVCR	Options to Buy Ordinary Shares→ Ordinary Shares (29,565)	29,565	Direct
March 31, 2011	DCTH	No securities are beneficially owned.	0	Direct