John S Clarkeson — SEC Insider Profile, Roles & Companies

Insider at

CBT ES buying May 22, 2008

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 62 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

62 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 16, 2018	ES	A	2,175	·	·	32,257 Direct	+7.23%	Acquired	(price as of 2026-10-05)
Jan. 17, 2017	ES	A	2,452	·	·	29,680 Direct	+9.01%	Acquired	(price as of 2026-10-05)
Jan. 15, 2016	ES	A	2,637	·	·	26,913 Direct	+10.86%	Acquired	(price as of 2026-10-05)
Jan. 15, 2015	ES	A	1,863	·	·	24,035 Direct	+8.40%	Acquired	(price as of 2026-10-05)
Jan. 9, 2015	CBT	A	435	·	·	33,142 Direct	+1.33%	Acquired	(price as of 2026-10-05)
Dec. 12, 2014	CBT	A	113	$39.64	$4,479	20,529 Direct	+0.55%	Acquired	95.2% (price as of 2026-10-05)
Sept. 12, 2014	CBT	A	83	$54.20	$4,499	20,416 Direct	+0.41%	Acquired	42.8% (price as of 2026-10-05)
June 13, 2014	CBT	A	75	$59.19	$4,439	20,333 Direct	+0.37%	Acquired	30.7% (price as of 2026-10-05)
March 14, 2014	CBT	A	73	$54.98	$4,014	20,258 Direct	+0.36%	Acquired	40.7% (price as of 2026-10-05)
Jan. 15, 2014	ES	A	2,381	·	·	22,003 Direct	+12.13%	Acquired	(price as of 2026-10-05)
Jan. 10, 2014	CBT	A	1,451	·	·	32,707 Direct	+4.64%	Acquired	(price as of 2026-10-05)
Jan. 15, 2013	ES	A	2,545	·	·	19,533 Direct	+14.98%	Acquired	(price as of 2026-10-05)
Jan. 11, 2013	CBT	A	1,748	·	·	31,256 Direct	+5.92%	Acquired	(price as of 2026-10-05)
April 2, 2012	ES	A	50	$37.11	$1,856	16,907 Direct	+0.30%	Acquired	74.3% (price as of 2026-10-05)
Jan. 13, 2012	CBT	A	2,212	·	·	29,508 Direct	+8.10%	Acquired	(price as of 2026-10-05)
Jan. 3, 2012	ES	A	51	$36.44	$1,858	16,833 Direct	+0.30%	Acquired	77.5% (price as of 2026-10-05)
Jan. 3, 2012	ES	A	3,000	·	·	16,782 Direct	+21.77%	Acquired	(price as of 2026-10-05)
Oct. 3, 2011	ES	A	55	$33.51	$1,843	13,758 Direct	+0.40%	Acquired	93.0% (price as of 2026-10-05)
July 1, 2011	ES	A	53	$35.34	$1,873	13,679 Direct	+0.39%	Acquired	83.1% (price as of 2026-10-05)
April 1, 2011	ES	A	53	$34.79	$1,844	13,602 Direct	+0.39%	Acquired	85.9% (price as of 2026-10-05)
Jan. 14, 2011	CBT	A	1,796	·	·	27,296 Direct	+7.04%	Acquired	(price as of 2026-10-05)
Jan. 3, 2011	ES	A	58	$31.97	$1,854	13,525 Direct	+0.43%	Acquired	102.3% (price as of 2026-10-05)
Jan. 3, 2011	ES	A	3,000	·	·	13,467 Direct	+28.66%	Acquired	(price as of 2026-10-05)
Oct. 1, 2010	ES	A	63	$29.65	$1,868	10,443 Direct	+0.61%	Acquired	118.2% (price as of 2026-10-05)
July 1, 2010	ES	A	73	$25.57	$1,867	10,353 Direct	+0.71%	Acquired	153.0% (price as of 2026-10-05)
May 17, 2010	ES	A	46	$26.73	$1,230	10,250 Direct	+0.45%	Acquired	142.0% (price as of 2026-10-05)
Jan. 8, 2010	CBT	A	2,500	·	·	25,500 Direct	+10.87%	Acquired	(price as of 2026-10-05)
Jan. 4, 2010	ES	A	3,000	·	·	10,176 Direct	+41.81%	Acquired	(price as of 2026-10-05)
Dec. 31, 2009	CBT	A	524	$26.23	$13,745	18,595 Direct	+2.90%	Acquired	195.0% (price as of 2026-10-05)
Sept. 30, 2009	CBT	A	595	$23.11	$13,750	17,941 Direct	+3.43%	Acquired	234.8% (price as of 2026-10-05)
June 30, 2009	CBT	A	1,093	$12.58	$13,750	17,196 Direct	+6.79%	Acquired	515.1% (price as of 2026-10-05)
March 31, 2009	CBT	A	1,308	$10.51	$13,747	15,891 Direct	+8.97%	Acquired	636.3% (price as of 2026-10-05)
Jan. 9, 2009	CBT	A	2,500	·	·	23,000 Direct	+12.20%	Acquired	(price as of 2026-10-05)
Jan. 2, 2009	ES	A	3,000	·	·	7,052 Direct	+74.04%	Acquired	(price as of 2026-10-05)
Dec. 31, 2008	CBT	A	899	$15.30	$13,755	14,304 Direct	+6.71%	Acquired	405.8% (price as of 2026-10-05)
Sept. 30, 2008	CBT	A	433	$31.78	$13,761	13,265 Direct	+3.37%	Acquired	143.5% (price as of 2026-10-05)
June 30, 2008	CBT	A	566	$24.31	$13,759	12,761 Direct	+4.64%	Acquired	218.3% (price as of 2026-10-05)
May 22, 2008	ES	P	900	$26.00	$23,400	1,000 Direct	+900.00%	Acquired	148.8% (price as of 2026-10-05)
May 22, 2008	ES	P	100	$25.99	$2,599	100 Direct	·	Acquired	148.9% (price as of 2026-10-05)
March 31, 2008	CBT	A	714	$28.00	$19,992	12,123 Direct	+6.26%	Acquired	176.4% (price as of 2026-10-05)
Jan. 11, 2008	CBT	A	2,500	·	·	20,500 Direct	+13.89%	Acquired	(price as of 2026-10-05)
Dec. 31, 2007	CBT	A	637	$33.34	$21,238	11,330 Direct	+5.96%	Acquired	132.1% (price as of 2026-10-05)
Sept. 28, 2007	CBT	A	598	$35.53	$21,247	10,636 Direct	+5.96%	Acquired	117.8% (price as of 2026-10-05)
June 29, 2007	CBT	A	446	$47.68	$21,265	9,990 Direct	+4.67%	Acquired	62.3% (price as of 2026-10-05)
March 30, 2007	CBT	A	473	$47.73	$22,576	9,507 Direct	+5.24%	Acquired	62.1% (price as of 2026-10-05)
Jan. 12, 2007	CBT	A	2,500	·	·	18,000 Direct	+16.13%	Acquired	(price as of 2026-10-05)
Dec. 29, 2006	CBT	A	528	$43.57	$23,005	8,999 Direct	+6.23%	Acquired	77.6% (price as of 2026-10-05)
Sept. 29, 2006	CBT	A	618	$37.20	$22,990	8,435 Direct	+7.91%	Acquired	108.0% (price as of 2026-10-05)
Sept. 29, 2006	CBT	A	2,500	·	·	15,500 Direct	+19.23%	Acquired	(price as of 2026-10-05)
June 30, 2006	CBT	A	666	$34.52	$22,990	7,779 Direct	+9.36%	Acquired	124.2% (price as of 2026-10-05)
March 31, 2006	CBT	A	677	$33.99	$23,011	7,079 Direct	+10.57%	Acquired	127.7% (price as of 2026-10-05)
Dec. 31, 2005	CBT	A	358	$35.80	$12,816	6,374 Direct	+5.95%	Acquired	116.1% (price as of 2026-10-05)
Sept. 30, 2005	CBT	A	491	$33.01	$16,208	5,989 Direct	+8.93%	Acquired	134.4% (price as of 2026-10-05)
June 30, 2005	CBT	A	388	$33.00	$12,804	5,472 Direct	+7.63%	Acquired	134.5% (price as of 2026-10-05)
May 13, 2005	CBT	J	2,000	·	·	13,000 Direct	-13.33%	Disposed	(price as of 2026-10-05)
March 31, 2005	CBT	A	383	$33.43	$12,804	5,057 Direct	+8.19%	Acquired	131.5% (price as of 2026-10-05)
Jan. 14, 2005	CBT	A	2,000	·	·	15,000 Direct	+15.38%	Acquired	(price as of 2026-10-05)
Dec. 31, 2004	CBT	A	243	$38.68	$9,399	4,653 Direct	+5.51%	Acquired	100.1% (price as of 2026-10-05)
Sept. 30, 2004	CBT	A	288	$38.57	$11,108	4,391 Direct	+7.02%	Acquired	100.6% (price as of 2026-10-05)
June 30, 2004	CBT	A	314	$40.70	$12,780	4,087 Direct	+8.32%	Acquired	90.1% (price as of 2026-10-05)
March 31, 2004	CBT	A	390	$32.80	$12,792	3,757 Direct	+11.58%	Acquired	135.9% (price as of 2026-10-05)
Jan. 9, 2004	CBT	A	2,000	·	·	13,000 Direct	+18.18%	Acquired	(price as of 2026-10-05)
Dec. 31, 2003	CBT	A	295	$31.84	$9,393	3,352 Direct	+9.65%	Acquired	143.0% (price as of 2026-10-05)
Sept. 30, 2003	CBT	A	449	$28.51	$12,801	3,043 Direct	+17.31%	Acquired	171.4% (price as of 2026-10-05)

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. 12, 2014	CBT	Phantom Stock	Common Stock (113)	·	·	113	Acquired
Sept. 12, 2014	CBT	Phantom Stock	Common Stock (83)	·	·	83	Acquired
June 13, 2014	CBT	Phantom Stock	Common Stock (75)	·	·	75	Acquired
March 14, 2014	CBT	Phantom Stock	Common Stock (73)	·	·	73	Acquired
Dec. 31, 2009	CBT	Phantom Stock Units	Common Stock (524)	·	·	524	Acquired
Sept. 30, 2009	CBT	Phantom Stock Units	Common Stock (595)	·	·	595	Acquired
June 30, 2009	CBT	Phantom Stock Units	Common Stock (1,093)	·	·	1,093	Acquired
March 31, 2009	CBT	Phantom Stock Units	Common Stock (1,308)	·	·	1,308	Acquired
Dec. 31, 2008	CBT	Phantom Stock Units	Commom Stock (899)	·	·	899	Acquired
Sept. 30, 2008	CBT	Phantom Stock Units	Common Stock (433)	·	·	433	Acquired
June 30, 2008	CBT	Phantom Stock Units	Common Stock (566)	·	·	566	Acquired
March 31, 2008	CBT	Phantom Stock Units	Common Stock (714)	·	·	714	Acquired
Dec. 31, 2007	CBT	Phantom Stock Units	Common Stock (637)	·	·	637	Acquired
Sept. 28, 2007	CBT	Phantom Stock Units	Common Stock (598)	·	·	598	Acquired
June 29, 2007	CBT	Phantom Stock Units	Common Stock (446)	·	Aug. 8, 1988	446	Acquired
March 30, 2007	CBT	Phantom Stock Units	Common Stock (473)	·	Aug. 8, 1988	473	Acquired
Dec. 29, 2006	CBT	Phantom Stock Units	Common Stock (528)	·	Aug. 8, 1988	528	Acquired
Sept. 29, 2006	CBT	Phantom Stock Units	Common Stock (618)	·	Aug. 8, 1988	618	Acquired
June 30, 2006	CBT	Phantom Stock Units	Common Stock (666)	·	Aug. 8, 1988	666	Acquired
March 31, 2006	CBT	Phantom Stock Units	Common Stock (677)	·	Aug. 8, 1988	677	Acquired
Dec. 31, 2005	CBT	Phantom Stock Units	Common Stock (358)	·	Aug. 8, 1988	358	Acquired
Sept. 30, 2005	CBT	Phantom Stock Units	Common Stock (491)	·	Aug. 8, 1988	491	Acquired
June 30, 2005	CBT	Phantom Stock Units	Common Stock (388)	·	Aug. 8, 1988	388	Acquired
March 31, 2005	CBT	Phantom Stock Units	Common stock (383)	·	Aug. 8, 1988	383	Acquired
Dec. 31, 2004	CBT	Phantom Stock Units	Common stock (243)	·	Aug. 8, 1988	243	Acquired
Sept. 30, 2004	CBT	Phantom Stock Units	Common stock (288)	·	Aug. 8, 1988	288	Acquired
June 30, 2004	CBT	Phantom Stock Units	Common stock (314)	·	Aug. 8, 1988	314	Acquired
March 31, 2004	CBT	Phantom Stock Units	Common stock (390)	·	Aug. 8, 1988	390	Acquired
Dec. 31, 2003	CBT	Phantom Stock Units	·	·	Aug. 8, 1988	295	Acquired
Sept. 30, 2003	CBT	Phantom Stock Units	·	·	Aug. 8, 1988	449	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
May 16, 2008	ES	Common Shares, $5.00 par value	0	Direct