Byrne Robert O

Insider

First SEC filing: Feb. 15, 2008 · Latest: Feb. 15, 2008

On this page

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

CBZ selling Sept. 15, 2015

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 75 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

75 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Sept. 15, 2015	CBZ	S	15,000	$10.00	$150,000	210,984 Direct	-6.64%	Disposed	449.1% (price as of 2026-08-21)
May 22, 2015	CBZ	F	2,076	$9.32	$19,348	225,984 Direct	-0.91%	Disposed	489.2% (price as of 2026-08-21)
May 15, 2015	CBZ	A	72,000	—	—	72,000 Direct	—	Acquired	(price as of 2026-08-21)
May 15, 2015	CBZ	A	25,000	—	—	228,060 Direct	+12.31%	Acquired	(price as of 2026-08-21)
May 14, 2015	CBZ	S	189,252	$9.33	$1,765,721	203,060 Direct	-48.24%	Disposed	488.5% (price as of 2026-08-21)
May 14, 2015	CBZ	F	2,076	$9.44	$19,597	392,312 Direct	-0.53%	Disposed	481.7% (price as of 2026-08-21)
May 9, 2015	CBZ	F	2,013	$9.36	$18,842	394,388 Direct	-0.51%	Disposed	486.6% (price as of 2026-08-21)
April 4, 2015	CBZ	F	2,013	$9.39	$18,902	396,401 Direct	-0.51%	Disposed	484.8% (price as of 2026-08-21)
May 22, 2014	CBZ	F	2,026	$8.49	$17,201	398,414 Direct	-0.51%	Disposed	546.8% (price as of 2026-08-21)
May 22, 2014	CBZ	F	2,026	$8.49	$17,201	39,814 Direct	-4.84%	Disposed	546.8% (price as of 2026-08-21)
May 14, 2014	CBZ	A	72,000	—	—	252,000 Direct	+40.00%	Acquired	(price as of 2026-08-21)
May 14, 2014	CBZ	A	25,200	—	—	400,440 Direct	+6.72%	Acquired	(price as of 2026-08-21)
May 13, 2014	CBZ	F	1,688	$8.53	$14,399	375,240 Direct	-0.45%	Disposed	543.7% (price as of 2026-08-21)
May 9, 2014	CBZ	F	2,026	$8.53	$17,282	376,928 Direct	-0.53%	Disposed	543.7% (price as of 2026-08-21)
April 4, 2014	CBZ	F	2,026	$9.17	$18,578	378,954 Direct	-0.53%	Disposed	498.8% (price as of 2026-08-21)
Dec. 16, 2013	CBZ	S	36,781	$9.22	$339,121	380,980 Direct	-8.80%	Disposed	495.6% (price as of 2026-08-21)
Dec. 13, 2013	CBZ	S	76,147	$8.90	$677,708	417,761 Direct	-15.42%	Disposed	517.0% (price as of 2026-08-21)
Dec. 10, 2013	CBZ	S	5,000	$8.95	$44,750	493,908 Direct	-1.00%	Disposed	513.5% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	M	18,000	$5.87	$105,660	180,000 Direct	-9.09%	Disposed	835.4% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	M	36,000	$7.41	$266,760	198,000 Direct	-15.38%	Disposed	641.0% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	M	54,000	$6.75	$364,500	234,000 Direct	-18.75%	Disposed	713.5% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	S	18,000	$9.01	$162,180	498,908 Direct	-3.48%	Disposed	509.4% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	M	18,000	$5.87	$105,660	516,908 Direct	+3.61%	Acquired	835.4% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	S	36,000	$9.01	$324,360	498,908 Direct	-6.73%	Disposed	509.4% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	M	36,000	$7.41	$266,760	534,908 Direct	+7.22%	Acquired	641.0% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	S	54,000	$9.01	$486,540	498,908 Direct	-9.77%	Disposed	509.4% (price as of 2026-08-21)
Nov. 18, 2013	CBZ	M	54,000	$6.75	$364,500	552,908 Direct	+10.82%	Acquired	713.5% (price as of 2026-08-21)
Nov. 15, 2013	CBZ	M	72,000	$7.70	$554,400	288,000 Direct	-20.00%	Disposed	613.1% (price as of 2026-08-21)
Nov. 15, 2013	CBZ	M	42,600	$8.23	$350,598	360,000 Direct	-10.58%	Disposed	567.2% (price as of 2026-08-21)
Nov. 15, 2013	CBZ	S	72,000	$9.01	$648,720	498,908 Direct	-12.61%	Disposed	509.4% (price as of 2026-08-21)
Nov. 15, 2013	CBZ	M	72,000	$7.70	$554,400	570,908 Direct	+14.43%	Acquired	613.1% (price as of 2026-08-21)
Nov. 15, 2013	CBZ	S	42,600	$9.01	$383,826	498,908 Direct	-7.87%	Disposed	509.4% (price as of 2026-08-21)
Nov. 15, 2013	CBZ	M	42,600	$8.23	$350,598	541,508 Direct	+8.54%	Acquired	567.2% (price as of 2026-08-21)
Nov. 14, 2013	CBZ	M	29,400	$8.23	$241,962	402,600 Direct	-6.81%	Disposed	567.2% (price as of 2026-08-21)
Nov. 14, 2013	CBZ	S	29,400	$9.03	$265,482	498,908 Direct	-5.56%	Disposed	508.1% (price as of 2026-08-21)
Nov. 14, 2013	CBZ	M	29,400	$8.23	$241,962	528,308 Direct	+5.89%	Acquired	567.2% (price as of 2026-08-21)
May 22, 2013	CBZ	F	2,032	$6.49	$13,188	498,908 Direct	-0.41%	Disposed	746.1% (price as of 2026-08-21)
May 13, 2013	CBZ	F	1,694	$6.55	$11,096	500,940 Direct	-0.34%	Disposed	738.3% (price as of 2026-08-21)
May 9, 2013	CBZ	A	72,000	—	—	432,000 Direct	+20.00%	Acquired	(price as of 2026-08-21)
May 4, 2013	CBZ	A	25,200	—	—	502,634 Direct	+5.28%	Acquired	(price as of 2026-08-21)
May 4, 2013	CBZ	F	1,694	$6.40	$10,842	477,434 Direct	-0.35%	Disposed	758.0% (price as of 2026-08-21)
April 4, 2013	CBZ	F	2,032	$6.29	$12,781	479,128 Direct	-0.42%	Disposed	773.0% (price as of 2026-08-21)
May 22, 2012	CBZ	A	72,000	—	—	408,000 Direct	+21.43%	Acquired	(price as of 2026-08-21)
May 22, 2012	CBZ	A	25,200	—	—	481,160 Direct	+5.53%	Acquired	(price as of 2026-08-21)
May 13, 2012	CBZ	F	1,728	$6.18	$10,679	455,960 Direct	-0.38%	Disposed	788.5% (price as of 2026-08-21)
May 4, 2012	CBZ	F	1,728	$5.95	$10,282	457,688 Direct	-0.38%	Disposed	822.9% (price as of 2026-08-21)
May 13, 2011	CBZ	F	1,728	$7.24	$12,511	459,416 Direct	-0.37%	Disposed	658.4% (price as of 2026-08-21)
May 7, 2011	CBZ	F	1,152	$7.06	$8,133	461,144 Direct	-0.25%	Disposed	677.8% (price as of 2026-08-21)
May 4, 2011	CBZ	F	1,728	$7.16	$12,372	462,296 Direct	-0.37%	Disposed	666.9% (price as of 2026-08-21)
April 8, 2011	CBZ	F	1,728	$7.22	$12,476	464,024 Direct	-0.37%	Disposed	660.5% (price as of 2026-08-21)
April 4, 2011	CBZ	A	72,000	—	—	354,000 Direct	+25.53%	Acquired	(price as of 2026-08-21)
April 4, 2011	CBZ	A	25,200	—	—	465,752 Direct	+5.72%	Acquired	(price as of 2026-08-21)
March 17, 2011	CBZ	M	3,600	$3.45	$12,420	282,000 Direct	-1.26%	Disposed	1491.6% (price as of 2026-08-21)
March 17, 2011	CBZ	F	2,415	$6.94	$16,760	440,552 Direct	-0.55%	Disposed	691.2% (price as of 2026-08-21)
March 17, 2011	CBZ	M	3,600	$3.45	$12,420	442,967 Direct	+0.82%	Acquired	1491.6% (price as of 2026-08-21)
July 15, 2010	CBZ	P	3,909	$6.39	$24,979	439,367 Direct	+0.90%	Acquired	759.3% (price as of 2026-08-21)
May 13, 2010	CBZ	A	72,000	—	—	285,600 Direct	+33.71%	Acquired	(price as of 2026-08-21)
May 13, 2010	CBZ	A	21,000	—	—	435,458 Direct	+5.07%	Acquired	(price as of 2026-08-21)
May 7, 2010	CBZ	F	1,152	$6.41	$7,384	414,458 Direct	-0.28%	Disposed	756.6% (price as of 2026-08-21)
May 4, 2010	CBZ	F	1,728	$7.14	$12,338	415,610 Direct	-0.41%	Disposed	669.0% (price as of 2026-08-21)
April 15, 2010	CBZ	F	768	$6.75	$5,184	417,338 Direct	-0.18%	Disposed	713.5% (price as of 2026-08-21)
April 8, 2010	CBZ	F	1,728	$6.61	$11,422	418,106 Direct	-0.41%	Disposed	730.7% (price as of 2026-08-21)
April 3, 2010	CBZ	F	576	$6.59	$3,796	419,834 Direct	-0.14%	Disposed	733.2% (price as of 2026-08-21)
March 8, 2010	CBZ	M	7,200	$3.45	$24,840	213,600 Direct	-3.26%	Disposed	1491.6% (price as of 2026-08-21)
March 8, 2010	CBZ	M	7,200	$4.30	$30,960	220,800 Direct	-3.16%	Disposed	1177.0% (price as of 2026-08-21)
March 8, 2010	CBZ	F	5,085	$6.35	$32,290	420,410 Direct	-1.20%	Disposed	764.7% (price as of 2026-08-21)
March 8, 2010	CBZ	M	7,200	$3.45	$24,840	425,495 Direct	+1.72%	Acquired	1491.6% (price as of 2026-08-21)
March 8, 2010	CBZ	F	5,737	$6.37	$36,545	418,295 Direct	-1.35%	Disposed	762.0% (price as of 2026-08-21)
March 8, 2010	CBZ	M	7,200	$4.30	$30,960	424,032 Direct	+1.73%	Acquired	1177.0% (price as of 2026-08-21)
Aug. 17, 2009	CBZ	P	890	$7.01	$6,239	416,832 Direct	+0.21%	Acquired	683.3% (price as of 2026-08-21)
July 15, 2009	CBZ	P	882	$7.08	$6,245	415,942 Direct	+0.21%	Acquired	675.6% (price as of 2026-08-21)
June 15, 2009	CBZ	P	879	$7.11	$6,250	415,060 Direct	+0.21%	Acquired	672.3% (price as of 2026-08-21)
May 15, 2009	CBZ	P	868	$7.19	$6,241	415,333 Direct	+0.21%	Acquired	663.7% (price as of 2026-08-21)
May 7, 2009	CBZ	F	1,152	$7.36	$8,479	414,181 Direct	-0.28%	Disposed	646.1% (price as of 2026-08-21)
May 4, 2009	CBZ	A	72,000	—	—	228,000 Direct	+46.15%	Acquired	(price as of 2026-08-21)
May 4, 2009	CBZ	A	21,000	—	—	414,465 Direct	+5.34%	Acquired	(price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	5,000	$8.40	$42,000	393,465 Direct	-1.25%	Disposed	553.7% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	12,250	$8.37	$102,532	398,465 Direct	-2.98%	Disposed	556.0% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	2,750	$8.39	$23,072	410,715 Direct	-0.67%	Disposed	554.5% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	20,000	$8.36	$167,200	413,465 Direct	-4.61%	Disposed	556.8% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	10,000	$9.36	$93,600	433,465 Direct	-2.25%	Disposed	486.6% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	10,000	$8.33	$83,300	443,465 Direct	-2.21%	Disposed	559.2% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	10,000	$8.32	$83,200	453,465 Direct	-2.16%	Disposed	560.0% (price as of 2026-08-21)
Dec. 16, 2008	CBZ	S	5,000	$8.32	$41,600	463,465 Direct	-1.07%	Disposed	560.0% (price as of 2026-08-21)
April 8, 2008	CBZ	A	72,000	—	—	156,000 Direct	+85.71%	Acquired	(price as of 2026-08-21)
April 8, 2008	CBZ	A	21,000	—	—	468,465 Direct	+4.69%	Acquired	(price as of 2026-08-21)
March 17, 2008	CBZ	P	3,662	$8.03	$29,406	447,465 Direct	+0.83%	Acquired	583.8% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	M	6,000	—	—	84,000 Direct	-6.67%	Disposed	(price as of 2026-08-21)
Feb. 22, 2008	CBZ	M	7,200	—	—	90,000 Direct	-7.41%	Disposed	(price as of 2026-08-21)
Feb. 22, 2008	CBZ	M	10,800	—	—	97,200 Direct	-10.00%	Disposed	(price as of 2026-08-21)
Feb. 22, 2008	CBZ	M	66,928	—	—	108,000 Direct	-38.26%	Disposed	(price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	24,260	$8.90	$215,914	443,803 Direct	-5.18%	Disposed	517.0% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	8,100	$8.91	$72,171	468,063 Direct	-1.70%	Disposed	516.3% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	3,700	$8.92	$33,004	476,163 Direct	-0.77%	Disposed	515.6% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	8,100	$8.93	$72,333	479,863 Direct	-1.66%	Disposed	514.9% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	4,500	$8.94	$40,230	487,963 Direct	-0.91%	Disposed	514.2% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	2,400	$8.95	$21,480	492,463 Direct	-0.48%	Disposed	513.5% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	5,200	$8.96	$46,592	494,863 Direct	-1.04%	Disposed	512.8% (price as of 2026-08-21)
Feb. 22, 2008	CBZ	F	250	$8.99	$2,248	500,063 Direct	-0.05%	Disposed	510.8% (price as of 2026-08-21)
Feb. 21, 2008	CBZ	M	33,072	—	—	174,928 Direct	-15.90%	Disposed	(price as of 2026-08-21)

Showing latest 100 of 209 transactions

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
May 15, 2015	CBZ	Employee Stock Option [F3]	Common stock (72,000)	$9.35	May 15, 2021	72,000	Acquired
May 14, 2014	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$8.36	May 14, 2020	72,000	Acquired
Nov. 18, 2013	CBZ	Employee Stock Option [F3]	Common Stock (18,000)	$5.87	May 22, 2018	18,000	Disposed
Nov. 18, 2013	CBZ	Employee Stock Option [F2]	Common Stock (36,000)	$7.41	April 4, 2017	36,000	Disposed
Nov. 18, 2013	CBZ	Employee Stock Option [F1]	Common Stock (54,000)	$6.75	May 13, 2016	54,000	Disposed
Nov. 15, 2013	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$7.70	May 4, 2015	72,000	Disposed
Nov. 15, 2013	CBZ	Employee Stock Option [F1]	Common Stock (42,600)	$8.23	April 8, 2014	42,600	Disposed
Nov. 14, 2013	CBZ	Employee Stock Option [F1]	Common Stock (29,400)	$8.23	April 8, 2014	29,400	Disposed
May 9, 2013	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$6.52	May 9, 2019	72,000	Acquired
May 22, 2012	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$5.87	May 22, 2018	72,000	Acquired
April 4, 2011	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$7.41	April 4, 2017	72,000	Acquired
March 17, 2011	CBZ	Employee Stock Option [F1]	Common Stock (3,600)	$3.45	April 15, 2011	3,600	Disposed
May 13, 2010	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$6.75	May 13, 2016	72,000	Acquired
March 8, 2010	CBZ	Employee Stock Options [F2]	Common Stock (7,200)	$3.45	April 15, 2011	7,200	Disposed
March 8, 2010	CBZ	Employee Stock Options [F1]	Common Stock (7,200)	$4.30	May 4, 2010	7,200	Disposed
May 4, 2009	CBZ	Stock Option [F3]	Common Stock (72,000)	$7.70	May 4, 2015	72,000	Acquired
April 8, 2008	CBZ	Employee Stock Option [F3]	Common Stock (72,000)	$8.23	April 8, 2014	72,000	Acquired
Feb. 22, 2008	CBZ	Employee Stock Option	Common Stock (6,000)	$8.08	April 3, 2012	6,000	Disposed
Feb. 22, 2008	CBZ	Employee Stock Option	Common Stock (7,200)	$3.45	April 15, 2011	7,200	Disposed
Feb. 22, 2008	CBZ	Employee Stock Option	Common Stock (10,800)	$4.30	May 4, 2010	10,800	Disposed
Feb. 22, 2008	CBZ	Employee Stock Option	Common Stock (66,928)	$3.45	April 5, 2008	66,928	Disposed
Feb. 21, 2008	CBZ	Employee Stock Option	Common Stock (33,072)	$3.45	April 5, 2008	33,072	Disposed
May 7, 2007	CBZ	Employee Stock Options [F3]	Common Stock (48,000)	$7.57	May 7, 2013	48,000	Acquired
Feb. 21, 2007	CBZ	Employee Stock Option (Right to Buy) [F2]	Common Stock (120,000)	$1.53	March 7, 2007	120,000	Disposed
April 3, 2006	CBZ	Employee Stock Options [F3]	Common Stock (24,000)	$8.08	April 3, 2012	24,000	Acquired
Dec. 15, 2005	CBZ	Employee Stock Option (Right to Buy) [F1]	Common Stock (30,000)	$3.41	March 1, 2006	30,000	Disposed
April 15, 2005	CBZ	Employee Stock Options [F3]	Employee Stock Options [F3] (18,000)	$3.45	April 15, 2011	18,000	Acquired
May 4, 2004	CBZ	Employee Stock Options [F3]	Common Stock (18,000)	$4.30	May 4, 2010	18,000	Acquired

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