Frederick W Buckman

Insider

First SEC filing: Nov. 7, 2025 · Latest: Nov. 7, 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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 7 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

7 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 18, 2025	IMSRW	A	1,176	—	—	7,879 Direct	+17.54%	Acquired	(price as of 2026-08-20)
Dec. 18, 2025	IMSRW	A	6,703	—	—	6,703 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 1, 2019	PCG	A	3,030	$9.90	$29,997	4,407 Direct	+220.04%	Acquired	83.0% (price as of 2026-08-20)
July 5, 2019	PCG	A	1,377	$21.79	$30,005	1,377 Direct	—	Acquired	-16.8% (price as of 2026-08-20)
May 15, 2008	PWR	M	24,353	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 15, 2008	PWR	S	200	$29.97	$5,994	1,988 Direct	-9.14%	Disposed	2138.5% (price as of 2026-08-20)
May 15, 2008	PWR	S	200	$29.97	$5,994	2,188 Direct	-8.38%	Disposed	2138.5% (price as of 2026-08-20)
May 15, 2008	PWR	S	400	$29.96	$11,984	2,388 Direct	-14.35%	Disposed	2139.2% (price as of 2026-08-20)
May 15, 2008	PWR	S	100	$29.96	$2,996	2,788 Direct	-3.46%	Disposed	2139.2% (price as of 2026-08-20)
May 15, 2008	PWR	S	400	$29.95	$11,980	2,888 Direct	-12.17%	Disposed	2140.0% (price as of 2026-08-20)
May 15, 2008	PWR	S	200	$29.94	$5,988	3,288 Direct	-5.73%	Disposed	2140.7% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,400	$29.94	$41,916	3,488 Direct	-28.64%	Disposed	2140.7% (price as of 2026-08-20)
May 15, 2008	PWR	S	2,100	$29.93	$62,853	4,888 Direct	-30.05%	Disposed	2141.5% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,100	$29.92	$32,912	6,988 Direct	-13.60%	Disposed	2142.2% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,498	$29.91	$44,805	8,088 Direct	-15.63%	Disposed	2143.0% (price as of 2026-08-20)
May 15, 2008	PWR	S	6,302	$29.90	$188,430	9,586 Direct	-39.67%	Disposed	2143.7% (price as of 2026-08-20)
May 15, 2008	PWR	S	453	$29.89	$13,540	15,888 Direct	-2.77%	Disposed	2144.5% (price as of 2026-08-20)
May 15, 2008	PWR	S	100	$29.84	$2,984	16,341 Direct	-0.61%	Disposed	2148.2% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,595	$29.83	$47,579	16,441 Direct	-8.84%	Disposed	2149.0% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,300	$29.81	$38,753	18,036 Direct	-6.72%	Disposed	2150.5% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,900	$29.80	$56,620	19,336 Direct	-8.95%	Disposed	2151.3% (price as of 2026-08-20)
May 15, 2008	PWR	S	905	$29.79	$26,960	21,236 Direct	-4.09%	Disposed	2152.0% (price as of 2026-08-20)
May 15, 2008	PWR	S	900	$29.78	$26,802	22,141 Direct	-3.91%	Disposed	2152.8% (price as of 2026-08-20)
May 15, 2008	PWR	S	300	$29.77	$8,931	23,041 Direct	-1.29%	Disposed	2153.5% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,800	$29.76	$53,568	23,341 Direct	-7.16%	Disposed	2154.3% (price as of 2026-08-20)
May 15, 2008	PWR	S	1,200	$29.75	$35,700	25,141 Direct	-4.56%	Disposed	2155.0% (price as of 2026-08-20)
May 15, 2008	PWR	M	24,353	$13.85	$337,289	26,341 Direct	+1225.00%	Acquired	4743.9% (price as of 2026-08-20)
Aug. 30, 2007	PWR	A	1,988	—	—	1,988 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
Dec. 18, 2025	IMSRW	Resricted Stock Units	Common Stock (1,176)	—	—	1,176	Acquired
Dec. 18, 2025	IMSRW	Restricted Stock Units	Common Stock (6,703)	—	—	6,703	Acquired
Oct. 1, 2019	PCG	Phantom Stock	Common Stock (3,030)	—	—	3,030	Acquired
July 5, 2019	PCG	Phantom Stock	Common Stock (1,377)	—	—	1,377	Acquired
May 15, 2008	PWR	Stock Options (Right to buy)	Common Stock (24,353)	$13.85	Sept. 21, 2016	24,353	Disposed

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

Initial ownership (Form 3) 11 holdings

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

Date	Ticker	Security	Shares	Ownership
Nov. 7, 2025	IMSRW	Common Stock, par value $0.0001 per share ("Common Stock")	6,669	Direct
Nov. 7, 2025	IMSRW	Common Stock	14,930	Indirect
Nov. 7, 2025	IMSRW	Stock Option (Right to Buy)→ Common Stock (22,352)	22,352	Direct
Nov. 7, 2025	IMSRW	Stock Option (Right to Buy)→ Common Stock (111,758)	111,758	Direct
Nov. 7, 2025	IMSRW	Stock Option (Right to Buy)→ Common Stock (67,055)	67,055	Direct
Nov. 7, 2025	IMSRW	Stock Option (Right to Buy)→ Common Stock (67,055)	67,055	Direct
Nov. 7, 2025	IMSRW	Warrants (Right to Buy)→ Common Stock (22,352)	22,352	Direct
Nov. 7, 2025	IMSRW	Warrants (Right to Buy)→ Common Stock (44,703)	44,703	Indirect
Nov. 7, 2025	IMSRW	Contingent Value Right→ Common Stock	—	Direct
Nov. 7, 2025	IMSRW	Contingent Value Right→ Common Stock	—	Indirect
Aug. 31, 2007	PWR	Stock Options (Right to buy) [F1]→ Common Stock	—	Direct