Nancy T Chang

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: $-198,600 + 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
July 15, 2026	WTI	S	60,000	$3.31	$198,600	156,100 Direct	-27.76%	Disposed	20.4% (price as of 2026-08-21)
June 3, 2026	WTI	M	103,448	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 3, 2026	WTI	A	35,972	—	—	35,972 Direct	—	Acquired	(price as of 2026-08-21)
June 3, 2026	WTI	M	103,448	—	—	216,100 Direct	+91.83%	Acquired	(price as of 2026-08-21)
June 3, 2025	WTI	M	73,892	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 3, 2025	WTI	A	103,448	—	—	103,448 Direct	—	Acquired	(price as of 2026-08-21)
June 3, 2025	WTI	M	73,892	—	—	112,652 Direct	+190.64%	Acquired	(price as of 2026-08-21)
June 17, 2024	WTI	M	38,760	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 17, 2024	WTI	M	38,760	—	—	38,760 Direct	—	Acquired	(price as of 2026-08-21)
June 14, 2024	WTI	A	73,892	—	—	73,892 Direct	—	Acquired	(price as of 2026-08-21)
July 3, 2023	WTI	A	38,760	—	—	38,760 Direct	—	Acquired	(price as of 2026-08-21)
May 7, 2010	CRL	A	10,710	—	—	10,710 Direct	—	Acquired	(price as of 2026-08-21)
May 7, 2010	CRL	A	2,980	—	—	31,010 Direct	+10.63%	Acquired	(price as of 2026-08-21)
May 8, 2009	CRL	A	10,440	—	—	10,440 Direct	—	Acquired	(price as of 2026-08-21)
May 8, 2009	CRL	A	2,530	—	—	28,030 Direct	+9.92%	Acquired	(price as of 2026-08-21)
Nov. 17, 2008	CRL	A	10,500	$23.86	$250,530	25,500 Direct	+70.00%	Acquired	1116.1% (price as of 2026-08-21)
May 9, 2008	CRL	A	6,000	—	—	6,000 Direct	—	Acquired	(price as of 2026-08-21)
May 9, 2008	CRL	A	2,000	—	—	15,000 Direct	+15.38%	Acquired	(price as of 2026-08-21)
Feb. 22, 2008	CRL	A	10,000	$57.37	$573,700	13,000 Direct	+333.33%	Acquired	405.8% (price as of 2026-08-21)
Nov. 1, 2007	CRL	A	8,500	—	—	8,500 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 1, 2007	CRL	A	3,000	—	—	3,000 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 1, 2007	CRL	A	3,000	—	—	3,000 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 1, 2007	CRL	A	8,500	—	—	8,500 Direct	—	Acquired	(price as of 2026-08-21)

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	WTI	Restricted Stock Units	Common Stock (103,448)	—	—	103,448	Disposed
June 3, 2026	WTI	Restricted Stock Units	Common Stock (35,972)	—	—	35,972	Acquired
June 3, 2025	WTI	Restricted Stock Units	Common Stock (73,892)	—	—	73,892	Disposed
June 3, 2025	WTI	Restricted Stock Units	Common Stock (103,448)	—	—	103,448	Acquired
June 17, 2024	WTI	Restricted Stock Units	Common Stock (38,760)	—	—	38,760	Disposed
June 14, 2024	WTI	Restricted Stock Units	Common Stock (73,892)	—	—	73,892	Acquired
July 3, 2023	WTI	Restricted Stock Units	Common Stock (38,760)	—	—	38,760	Acquired
May 7, 2010	CRL	Stock Options (Right to Buy)	Common Stock (10,710)	$30.44	May 7, 2017	10,710	Acquired
May 8, 2009	CRL	Stock Options (Right to Buy)	Common Stock (10,440)	$28.29	May 8, 2016	10,440	Acquired
May 9, 2008	CRL	Stock Options (Right to Buy)	Common Stock (6,000)	$61.72	May 9, 2015	6,000	Acquired
Nov. 1, 2007	CRL	Stock Options (Right to Buy)	Common Stock (8,500)	$57.49	Nov. 1, 2014	8,500	Acquired
Nov. 1, 2007	CRL	Stock Options (Right to Buy)	Common Stock (8,500)	$57.49	Nov. 1, 2014	8,500	Acquired

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

Initial ownership (Form 3) 5 holdings

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

Date	Ticker	Security	Shares	Ownership
Sept. 17, 2025	IMMX	Common Stock	421,940	Direct
Sept. 17, 2025	IMMX	Common Stock	496,940	Indirect
Sept. 17, 2025	IMMX	Non-Transferrable Warrant to Purchase Common Stock→ Common Stock (316,455)	316,455	Direct
Sept. 17, 2025	IMMX	Non-Transferrable Warrant to Purchase Common Stock→ Common Stock (316,455)	316,455	Indirect
Oct. 19, 2020	MLTX	Class B Ordinary Shares→ Class A Ordinary Shares (30,000)	30,000	Direct