COLLIER RICHARD T

Insider

First SEC filing: Dec. 21, 2012 · Latest: Dec. 21, 2012

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 12 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

12 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 15, 2026	PRTA	A	27,000	—	—	27,000 Direct	—	Acquired	(price as of 2026-08-20)
May 14, 2025	PRTA	A	20,183	—	—	20,183 Direct	—	Acquired	(price as of 2026-08-20)
May 15, 2024	PRTA	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 17, 2023	PRTA	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 28, 2022	PRTA	M	25,000	—	—	20,000 Direct	-55.56%	Disposed	(price as of 2026-08-20)
Sept. 28, 2022	PRTA	S 10b5-1	25,000	$48.09	$1,202,250	1,219 Direct	-95.35%	Disposed	-81.4% (price as of 2026-08-20)
Sept. 28, 2022	PRTA	M	25,000	$6.41	$160,250	26,219 Direct	+2050.86%	Acquired	39.8% (price as of 2026-08-20)
May 18, 2022	PRTA	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 16, 2018	PRTA	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
May 18, 2017	PRTA	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
May 20, 2016	PRTA	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2015	PRTA	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 29, 2013	PRTA	A	50,000	—	—	50,000 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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 15, 2026	PRTA	Stock Option (Right to Buy)	Ordinary Shares (27,000)	$9.76	May 15, 2036	27,000	Acquired
May 14, 2025	PRTA	Stock Option (Right to Buy)	Ordinary Shares (20,183)	$6.88	May 14, 2035	20,183	Acquired
May 15, 2024	PRTA	Stock Option (Right to Buy)	Ordinary Shares (15,000)	$22.39	May 15, 2034	15,000	Acquired
May 17, 2023	PRTA	Stock Option (Right to Buy)	Ordinary Shares (15,000)	$76.00	May 17, 2033	15,000	Acquired
Sept. 28, 2022	PRTA	Stock Option (Right to Buy)	Ordinary Shares (25,000)	$6.41	Jan. 29, 2023	25,000	Disposed
May 18, 2022	PRTA	Stock Option (Right to Buy)	Ordinary Shares (15,000)	$25.60	May 18, 2032	15,000	Acquired
May 16, 2018	PRTA	Stock Option (right to buy)	Ordinary Shares (12,000)	$16.43	May 16, 2028	12,000	Acquired
May 18, 2017	PRTA	Stock Option (right to buy)	Ordinary Shares (12,000)	$56.23	May 18, 2027	12,000	Acquired
May 20, 2016	PRTA	Stock Option (right to buy)	Ordinary Shares (15,000)	$42.50	May 20, 2026	15,000	Acquired
May 22, 2015	PRTA	Stock Option (right to buy)	Ordinary Shares (15,000)	$34.04	May 22, 2025	15,000	Acquired
Jan. 29, 2013	PRTA	Stock Option (right to buy)	Ordinary Shares (50,000)	—	Jan. 29, 2023	50,000	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
Dec. 21, 2012	PRTA	Ordinary Shares, par value $0.01 per share	1,219	Direct