DO CUONG V

Activist

First SEC filing: March 25, 2026 · Latest: March 25, 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

1 buys (P) 0 sells (S) Net: $7,500 + 29 non-open-market transactions below Avg return of open purchases vs now: 8.8% 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

29 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	ADAG	P	2,000	$3.75	$7,500	2,000 Direct	—	Acquired	8.8% (price as of 2026-08-20)
Aug. 13, 2026	ADAG	A	20,000	—	—	110,000 Direct	+22.22%	Acquired	(price as of 2026-08-20)
May 6, 2013	MRK	A	64,412	—	—	64,412 Direct	—	Acquired	(price as of 2026-08-20)
May 2, 2012	MRK	A	73,126	—	—	73,126 Direct	—	Acquired	(price as of 2026-08-20)
May 2, 2012	MRK	A	5,090	—	—	5,090 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 2, 2011	MRK	A	212,224	—	—	212,224 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 2, 2011	MRK	A	36,560	—	—	36,560 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 15, 2011	TEL	A	143	—	—	23,873 Direct	+0.60%	Acquired	(price as of 2026-08-20)
June 22, 2011	TEL	M	11,210	—	—	23,730 Direct	-32.08%	Disposed	(price as of 2026-08-20)
June 22, 2011	TEL	F	3,681	$34.93	$128,577	16,961 Direct	-17.83%	Disposed	475.0% (price as of 2026-08-20)
June 22, 2011	TEL	M	11,210	—	—	20,642 Direct	+118.85%	Acquired	(price as of 2026-08-20)
June 15, 2011	TEL	A	181	—	—	34,940 Direct	+0.52%	Acquired	(price as of 2026-08-20)
March 16, 2011	TEL	A	172	—	—	34,759 Direct	+0.50%	Acquired	(price as of 2026-08-20)
Dec. 15, 2010	TEL	A	157	—	—	34,587 Direct	+0.46%	Acquired	(price as of 2026-08-20)
Nov. 17, 2010	TEL	M	3,062	—	—	34,430 Direct	-8.17%	Disposed	(price as of 2026-08-20)
Nov. 17, 2010	TEL	F	1,006	$31.02	$31,206	9,432 Direct	-9.64%	Disposed	547.5% (price as of 2026-08-20)
Nov. 17, 2010	TEL	M	3,062	—	—	10,438 Direct	+41.51%	Acquired	(price as of 2026-08-20)
Nov. 8, 2010	TEL	A	78,750	—	—	78,750 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 8, 2010	TEL	A	9,780	—	—	37,492 Direct	+35.29%	Acquired	(price as of 2026-08-20)
Sept. 15, 2010	TEL	A	161	—	—	27,712 Direct	+0.58%	Acquired	(price as of 2026-08-20)
June 22, 2010	TEL	M	10,982	—	—	27,551 Direct	-28.50%	Disposed	(price as of 2026-08-20)
June 22, 2010	TEL	F	3,606	$29.10	$104,935	7,376 Direct	-32.84%	Disposed	590.2% (price as of 2026-08-20)
June 22, 2010	TEL	M	10,982	—	—	10,982 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2010	TEL	A	212	—	—	38,533 Direct	+0.55%	Acquired	(price as of 2026-08-20)
March 17, 2010	TEL	A	224	—	—	38,321 Direct	+0.59%	Acquired	(price as of 2026-08-20)
Dec. 23, 2009	TEL	A	252	—	—	38,097 Direct	+0.67%	Acquired	(price as of 2026-08-20)
Dec. 3, 2009	TEL	A	99,650	—	—	99,650 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 3, 2009	TEL	D	99,650	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 3, 2009	TEL	D	11,960	—	—	37,845 Direct	-24.01%	Disposed	(price as of 2026-08-20)
Dec. 3, 2009	TEL	A	11,960	—	—	49,805 Direct	+31.60%	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
Aug. 13, 2026	ADAG	Nonqualified Stock Option (Right to Buy)	Ordinary Shares (20,000)	$3.00	Aug. 13, 2036	20,000	Acquired
May 6, 2013	MRK	Stock Option (right to buy)	Common Stock (64,412)	$44.98	May 5, 2023	64,412	Acquired
May 2, 2012	MRK	Stock Option (right to buy)	Common Stock (73,126)	$39.29	May 1, 2022	73,126	Acquired
May 2, 2012	MRK	Restricted Stock Unit	Common Stock (5,090)	—	May 2, 2015	5,090	Acquired
Nov. 2, 2011	MRK	Stock Option (right to buy)	Common Stock (212,224)	$34.19	Nov. 1, 2021	212,224	Acquired
Nov. 2, 2011	MRK	Restricted Stock Unit	Common Stock (36,560)	—	Nov. 2, 2014	36,560	Acquired
Sept. 15, 2011	TEL	Restricted Stock Units	Common Shares (143)	—	—	143	Acquired
June 22, 2011	TEL	Restricted Stock Units	Common Shares (11,210)	—	—	11,210	Disposed
June 15, 2011	TEL	Restricted Stock Units	Common Shares (181)	—	—	181	Acquired
March 16, 2011	TEL	Restricted Stock Units	Common Shares (172)	—	—	172	Acquired
Dec. 15, 2010	TEL	Restricted Stock Units	Common Shares (157)	—	—	157	Acquired
Nov. 17, 2010	TEL	Restricted Stock Units	Common Shares (3,062)	—	—	3,062	Disposed
Nov. 8, 2010	TEL	Stock Option (Right to Buy)	Common Shares (78,750)	$33.73	Nov. 8, 2020	78,750	Acquired
Nov. 8, 2010	TEL	Restricted Stock Units	Common Shares (9,780)	—	—	9,780	Acquired
Sept. 15, 2010	TEL	Restricted Stock Units	Common Shares (161)	—	—	161	Acquired
June 22, 2010	TEL	Restricted Stock Units	Common Shares (10,982)	—	—	10,982	Disposed
June 16, 2010	TEL	Restricted Stock Units	Common Shares (212)	—	—	212	Acquired
March 17, 2010	TEL	Restricted Stock Units	Common Shares (224)	—	—	224	Acquired
Dec. 23, 2009	TEL	Restricted Stock Units	Common Shares (252)	—	—	252	Acquired
Dec. 3, 2009	TEL	Stock Option (Right to Buy)	Common Shares (99,650)	$24.60	Nov. 17, 2019	99,650	Acquired
Dec. 3, 2009	TEL	Stock Option (Right to Buy)	Common Shares (99,650)	$24.60	Nov. 16, 2019	99,650	Disposed
Dec. 3, 2009	TEL	Restricted Stock Units	Common Shares (11,960)	—	—	11,960	Disposed
Dec. 3, 2009	TEL	Restricted Stock Units	Common Shares (11,960)	—	—	11,960	Acquired

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
March 18, 2026	ADAG	Incentive Stock Option (Right to Buy)→ Ordinary Shares (40,000)	40,000	Direct
March 18, 2026	ADAG	Nonqualified Stock Option (Right to Buy)→ Ordinary Shares (50,000)	50,000	Direct
Oct. 10, 2023	SPKLU	Class B Ordinary Shares→ Class A Ordinary Shares (100,000)	100,000	Direct
Aug. 14, 2018	BIVIW	common stock	2,671,354	Indirect
Nov. 19, 2009	TEL	Restricted Stock Units→ Common Shares (37,845)	37,845	Direct
Nov. 19, 2009	TEL	Stock Option (Right to Buy)→ Common Shares (74,050)	74,050	Direct
Nov. 19, 2009	TEL	Stock Option (Right to Buy)→ Common Shares (99,650)	99,650	Direct