David C Aldous

Insider

First SEC filing: May 15, 2024 · Latest: May 15, 2024

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 8 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

8 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 15, 2024	BOOM	A	9,520	—	—	70,341 Direct	+15.65%	Acquired	(price as of 2026-08-20)
Aug. 22, 2023	BOOM	A	3,996	—	—	60,821 Direct	+7.03%	Acquired	(price as of 2026-08-20)
Aug. 4, 2023	BOOM	F	7,910	$18.48	$146,177	56,825 Direct	-12.22%	Disposed	-61.6% (price as of 2026-08-20)
Jan. 15, 2023	BOOM	A	27,510	—	—	64,735 Direct	+73.90%	Acquired	(price as of 2026-08-20)
May 11, 2022	BOOM	A	5,006	—	—	37,225 Direct	+15.54%	Acquired	(price as of 2026-08-20)
May 12, 2021	BOOM	A	1,888	—	—	32,219 Direct	+6.22%	Acquired	(price as of 2026-08-20)
March 11, 2021	BOOM	S	2,000	$67.00	$134,000	30,331 Direct	-6.19%	Disposed	-89.4% (price as of 2026-08-20)
Feb. 24, 2021	BOOM	S	2,000	$65.53	$131,060	32,331 Direct	-5.83%	Disposed	-89.2% (price as of 2026-08-20)
May 20, 2020	BOOM	A	4,211	—	—	34,331 Direct	+13.98%	Acquired	(price as of 2026-08-20)
July 1, 2013	BOOM	A	3,594	—	—	4,194 Direct	+599.00%	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.

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

Date	Ticker	Security	Shares	Ownership
July 1, 2013	BOOM	Common Stock	600	Direct