Bruns H Grayson

CIK 1204899 · View on SEC EDGAR ↗

Insider

First SEC filing: June 17, 2026 · Latest: June 17, 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.

Insider at

RBBN buying March 15, 2024

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 37 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

37 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 15, 2026	RBBN	A	14,423	—	—	840,270 Direct	+1.75%	Acquired	(price as of 2026-08-20)
June 16, 2026	RBBN	M	42,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 16, 2026	RBBN	M	42,500	—	—	825,847 Direct	+5.43%	Acquired	(price as of 2026-08-20)
June 15, 2026	RBBN	A	63,197	—	—	63,197 Direct	—	Acquired	(price as of 2026-08-20)
July 15, 2025	RBBN	A	8,416	—	—	746,829 Direct	+1.14%	Acquired	(price as of 2026-08-20)
June 17, 2025	RBBN	M	48,365	—	—	738,413 Direct	+7.01%	Acquired	(price as of 2026-08-20)
June 17, 2025	RBBN	M	48,365	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 16, 2025	RBBN	A	42,500	—	—	42,500 Direct	—	Acquired	(price as of 2026-08-20)
April 15, 2025	RBBN	A	8,609	—	—	690,048 Direct	+1.26%	Acquired	(price as of 2026-08-20)
Jan. 15, 2025	RBBN	A	8,112	—	—	681,439 Direct	+1.20%	Acquired	(price as of 2026-08-20)
Oct. 15, 2024	RBBN	A	10,384	—	—	673,327 Direct	+1.57%	Acquired	(price as of 2026-08-20)
July 16, 2024	RBBN	A	10,258	—	—	662,943 Direct	+1.57%	Acquired	(price as of 2026-08-20)
June 17, 2024	RBBN	A	48,365	—	—	48,365 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2024	RBBN	M	51,964	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 15, 2024	RBBN	M	51,964	—	—	652,685 Direct	+8.65%	Acquired	(price as of 2026-08-20)
April 15, 2024	RBBN	A	10,546	—	—	600,721 Direct	+1.79%	Acquired	(price as of 2026-08-20)
March 15, 2024	RBBN	P	100,000	$2.89	$289,000	590,175 Direct	+20.40%	Acquired	-31.0% (price as of 2026-08-20)
Jan. 16, 2024	RBBN	A	11,637	—	—	490,175 Direct	+2.43%	Acquired	(price as of 2026-08-20)
Oct. 16, 2023	RBBN	A	12,593	—	—	478,538 Direct	+2.70%	Acquired	(price as of 2026-08-20)
July 17, 2023	RBBN	A	12,097	—	—	465,945 Direct	+2.67%	Acquired	(price as of 2026-08-20)
June 15, 2023	RBBN	A	51,964	—	—	51,964 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2023	RBBN	M	38,585	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 15, 2023	RBBN	M	38,585	—	—	453,848 Direct	+9.29%	Acquired	(price as of 2026-08-20)
April 17, 2023	RBBN	A	9,869	—	—	415,263 Direct	+2.43%	Acquired	(price as of 2026-08-20)
Jan. 17, 2023	RBBN	A	12,096	—	—	405,394 Direct	+3.08%	Acquired	(price as of 2026-08-20)
Oct. 17, 2022	RBBN	A	16,891	$2.22	$37,498	393,298 Direct	+4.49%	Acquired	-10.1% (price as of 2026-08-20)
July 15, 2022	RBBN	A	12,335	$3.04	$37,498	376,407 Direct	+3.39%	Acquired	-34.4% (price as of 2026-08-20)
June 15, 2022	RBBN	A	38,585	—	—	38,585 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2022	RBBN	M	14,797	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 15, 2022	RBBN	M	14,797	—	—	364,072 Direct	+4.24%	Acquired	(price as of 2026-08-20)
April 18, 2022	RBBN	A	12,135	$3.09	$37,497	349,275 Direct	+3.60%	Acquired	-35.4% (price as of 2026-08-20)
March 14, 2022	RBBN	P	100,000	$2.81	$281,000	337,140 Direct	+42.17%	Acquired	-29.0% (price as of 2026-08-20)
June 22, 2021	RBBN	M	27,089	—	—	237,140 Direct	+12.90%	Acquired	(price as of 2026-08-20)
June 22, 2021	RBBN	M	27,089	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 15, 2021	RBBN	A	14,797	—	—	14,797 Direct	—	Acquired	(price as of 2026-08-20)
June 17, 2019	RBBN	A	25,975	—	—	25,975 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2018	RBBN	A	18,182	—	—	154,076 Direct	+13.38%	Acquired	(price as of 2026-08-20)
March 15, 2018	RBBN	P	100,000	$5.17	$517,000	135,894 Direct	+278.60%	Acquired	-61.4% (price as of 2026-08-20)
Jan. 16, 2018	RBBN	A	25,211	—	—	35,894 Direct	+235.99%	Acquired	(price as of 2026-08-20)
Jan. 16, 2018	RBBN	A	10,683	—	—	10,683 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
June 16, 2026	RBBN	RSUs	Common Stock (42,500)	—	—	42,500	Disposed
June 15, 2026	RBBN	Restricted Stock Units (RSUs)	Common Stock (63,197)	—	—	63,197	Acquired
June 17, 2025	RBBN	RSUs	Common Stock (48,365)	—	—	48,365	Disposed
June 16, 2025	RBBN	Restricted Stock Units (RSUs)	Common Stock (42,500)	—	—	42,500	Acquired
June 17, 2024	RBBN	RSUs	Common Stock (48,365)	—	—	48,365	Acquired
June 15, 2024	RBBN	Restricted Stock Units (RSUs)	Common Stock (51,964)	—	—	51,964	Disposed
June 15, 2023	RBBN	RSUs	Common Stock (51,964)	—	—	51,964	Acquired
June 15, 2023	RBBN	Restricted Stock Units (RSUs)	Common Stock (38,585)	—	—	38,585	Disposed
June 15, 2022	RBBN	RSU	Common Stock (38,585)	—	—	38,585	Acquired
June 15, 2022	RBBN	Restricted Stock Units (RSU)	Common Stock (14,797)	—	—	14,797	Disposed
June 22, 2021	RBBN	Restricted Stock Units (RSU)	Common Stock (27,089)	—	—	27,089	Disposed
June 15, 2021	RBBN	Restricted Stock Units (RSU)	Common Stock (14,797)	—	—	14,797	Acquired
June 17, 2019	RBBN	Restricted Stock Units (RSUs)	Common Stock (25,975)	—	—	25,975	Acquired

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