Perestroika AS

Activist

First SEC filing: Sept. 30, 2025 · Latest: Sept. 30, 2025

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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.

Insider at

RIG buying May 13, 2022

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 4 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

4 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 13, 2022	RIG	P	2,000,000	$3.75	$7,500,000	82,636,646 Direct	+2.48%	Acquired	60.3% (price as of 2026-08-20)
June 25, 2021	RIG	P	1,000,000	$4.53	$4,530,000	80,640,354 Direct	+1.26%	Acquired	32.7% (price as of 2026-08-20)
June 24, 2021	RIG	P	1,000,000	$4.51	$4,510,000	79,640,354 Direct	+1.27%	Acquired	33.3% (price as of 2026-08-20)
June 23, 2021	RIG	P	1,000,000	$4.40	$4,400,000	78,640,354 Direct	+1.29%	Acquired	36.6% (price as of 2026-08-20)
June 22, 2021	RIG	P	1,000,000	$4.20	$4,200,000	77,640,354 Direct	+1.30%	Acquired	43.1% (price as of 2026-08-20)
June 21, 2021	RIG	P	1,000,000	$4.09	$4,090,000	76,640,354 Direct	+1.32%	Acquired	46.9% (price as of 2026-08-20)
June 18, 2021	RIG	P	1,000,000	$3.93	$3,930,000	75,640,354 Direct	+1.34%	Acquired	52.9% (price as of 2026-08-20)
June 17, 2021	RIG	P	1,900,000	$3.97	$7,543,000	74,640,354 Direct	+2.61%	Acquired	51.4% (price as of 2026-08-20)
June 16, 2021	RIG	P	2,000,000	$4.20	$8,400,000	72,740,354 Direct	+2.83%	Acquired	43.1% (price as of 2026-08-20)
June 15, 2021	RIG	P	3,000,000	$4.17	$12,510,000	70,740,354 Direct	+4.43%	Acquired	44.1% (price as of 2026-08-20)
Aug. 14, 2020	RIG	D	None	—	—	— Indirect	—	Disposed	(price as of 2026-08-20)
Aug. 14, 2020	RIG	A	None	—	—	— Indirect	—	Acquired	(price as of 2026-08-20)
March 2, 2018	RIG	P	1,000,000	$9.30	$9,300,000	33,096,351 Direct	+3.12%	Acquired	-35.4% (price as of 2026-08-20)
March 1, 2018	RIG	P	1,000,000	$9.28	$9,280,000	32,096,351 Direct	+3.22%	Acquired	-35.2% (price as of 2026-08-20)
Jan. 30, 2018	RIG	A	31,096,351	—	—	31,096,351 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 30, 2018	RIG	A	None	—	—	— 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
Aug. 14, 2020	RIG	0.5% Exchangeable Senior Bonds due 2023	Shares	—	Jan. 30, 2023	—	Disposed
Aug. 14, 2020	RIG	2.5% Senior Guaranteed Exchangeable Bonds due 2027	Shares	—	Jan. 30, 2027	—	Acquired
Jan. 30, 2018	RIG	0.5% Exchangeable Senior Bonds due 2023	Shares	—	Jan. 30, 2023	—	Acquired

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