Jianzhong Zhu

Insider

First SEC filing: March 25, 2013 · Latest: March 25, 2013

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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

KOP selling June 8, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 39 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

39 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 8, 2018	KOP	S	8,800	$42.57	$374,616	13,523 Direct	-39.42%	Disposed	8.1% (price as of 2026-08-21)
March 2, 2018	KOP	A	1,100	—	—	13,113 Direct	+9.16%	Acquired	(price as of 2026-08-21)
March 2, 2018	KOP	M	243	—	—	732 Direct	+49.69%	Acquired	(price as of 2026-08-21)
March 2, 2018	KOP	A	4,199	—	—	4,199 Direct	—	Acquired	(price as of 2026-08-21)
March 2, 2018	KOP	F	3,647	$41.60	$151,715	21,976 Direct	-14.23%	Disposed	10.6% (price as of 2026-08-21)
March 2, 2018	KOP	A	12,268	—	—	25,624 Direct	+91.85%	Acquired	(price as of 2026-08-21)
March 2, 2018	KOP	M	243	—	—	13,356 Direct	+1.85%	Acquired	(price as of 2026-08-21)
March 1, 2018	KOP	F	165	—	—	12,013 Direct	-1.35%	Disposed	(price as of 2026-08-21)
March 3, 2017	KOP	A	3,604	—	—	3,604 Direct	—	Acquired	(price as of 2026-08-21)
March 3, 2017	KOP	A	975	—	—	975 Direct	—	Acquired	(price as of 2026-08-21)
March 3, 2017	KOP	M	2,000	—	—	10,832 Direct	+22.64%	Acquired	(price as of 2026-08-21)
March 3, 2017	KOP	F	150	$44.10	$6,615	11,886 Direct	-1.25%	Disposed	4.3% (price as of 2026-08-21)
March 3, 2017	KOP	S	2,000	$44.17	$88,340	12,036 Direct	-14.25%	Disposed	4.1% (price as of 2026-08-21)
March 3, 2017	KOP	M	2,000	$17.57	$35,140	14,036 Direct	+16.62%	Acquired	161.8% (price as of 2026-08-21)
March 1, 2017	KOP	F	106	—	—	12,036 Direct	-0.87%	Disposed	(price as of 2026-08-21)
Feb. 17, 2017	KOP	F	218	—	—	12,141 Direct	-1.76%	Disposed	(price as of 2026-08-21)
March 1, 2016	KOP	A	8,685	—	—	8,685 Direct	—	Acquired	(price as of 2026-08-21)
March 1, 2016	KOP	A	2,369	—	—	12,360 Direct	+23.71%	Acquired	(price as of 2026-08-21)
Jan. 22, 2016	KOP	A	19	—	—	9,991 Direct	+0.19%	Acquired	(price as of 2026-08-21)
March 3, 2015	KOP	A	12,832	—	—	12,832 Direct	—	Acquired	(price as of 2026-08-21)
March 3, 2015	KOP	A	2,453	—	—	9,668 Direct	+34.00%	Acquired	(price as of 2026-08-21)
Feb. 21, 2015	KOP	F	0	—	—	9,972 Direct	0.00%	Disposed	(price as of 2026-08-21)
Feb. 21, 2015	KOP	F	304	—	—	7,215 Direct	-4.04%	Disposed	(price as of 2026-08-21)
Feb. 21, 2015	KOP	F	304	—	—	7,215 Direct	-4.04%	Disposed	(price as of 2026-08-21)
Jan. 6, 2015	KOP	A	10	—	—	7,519 Direct	+0.13%	Acquired	(price as of 2026-08-21)
Jan. 2, 2015	KOP	A	64	—	—	7,509 Direct	+0.86%	Acquired	(price as of 2026-08-21)
Feb. 22, 2014	KOP	F	910	—	—	7,445 Direct	-10.89%	Disposed	(price as of 2026-08-21)
Feb. 22, 2014	KOP	J	1	—	—	8,355 Direct	-0.01%	Disposed	(price as of 2026-08-21)
Feb. 18, 2014	KOP	A	3,979	—	—	3,979 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 18, 2014	KOP	A	1,069	—	—	8,356 Direct	+14.67%	Acquired	(price as of 2026-08-21)
Jan. 6, 2014	KOP	A	18	—	—	7,287 Direct	+0.25%	Acquired	(price as of 2026-08-21)
Jan. 2, 2014	KOP	A	122	—	—	7,269 Direct	+1.71%	Acquired	(price as of 2026-08-21)
Feb. 22, 2013	KOP	D	184	$41.52	$7,640	7,147 Direct	-2.51%	Disposed	10.8% (price as of 2026-08-21)
Feb. 22, 2013	KOP	A	2,215	—	—	7,325 Direct	+43.35%	Acquired	(price as of 2026-08-21)
Feb. 22, 2013	KOP	D	184	$41.52	$7,640	6,343 Direct	-2.82%	Disposed	10.8% (price as of 2026-08-21)
Feb. 22, 2013	KOP	A	1,418	—	—	6,527 Direct	+27.75%	Acquired	(price as of 2026-08-21)
Feb. 22, 2013	KOP	A	717	—	—	5,110 Direct	+16.32%	Acquired	(price as of 2026-08-21)
Feb. 22, 2013	KOP	A	1,418	—	—	6,527 Direct	+27.75%	Acquired	(price as of 2026-08-21)
Feb. 22, 2013	KOP	A	717	—	—	5,110 Direct	+16.32%	Acquired	(price as of 2026-08-21)
Feb. 21, 2013	KOP	A	3,064	—	—	3,064 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 21, 2013	KOP	A	825	—	—	4,393 Direct	+23.12%	Acquired	(price as of 2026-08-21)

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
March 2, 2018	KOP	Restricted Stock Units	Common Stock (243)	—	—	243	Acquired
March 2, 2018	KOP	Employee Stock Options (Rights to Buy)	Common Stock (4,199)	$41.60	March 2, 2028	4,199	Acquired
March 3, 2017	KOP	Employee Stock Options (Rights to Buy)	Common Stock (3,604)	$44.10	March 2, 2027	3,604	Acquired
March 3, 2017	KOP	Restricted Stock Units	Common Stock (975)	—	—	975	Acquired
March 3, 2017	KOP	Employee Stock Options (Rights to Buy)	Common Stock (2,000)	$17.57	March 2, 2025	2,000	Acquired
March 1, 2016	KOP	Employee Stock Options (Rights to Buy)	Common Stock (8,685)	$18.11	March 1, 2026	8,685	Acquired
March 3, 2015	KOP	Employee Stock Options (Rights to Buy)	Common Stock (12,832)	$17.57	March 3, 2025	12,832	Acquired
Feb. 18, 2014	KOP	Employee Stock Options (Rights to Buy)	Common Stock (3,979)	$37.93	Feb. 18, 2024	3,979	Acquired
Feb. 21, 2013	KOP	Employee Stock Options (Rights to Buy)	Common Stock (3,064)	$42.76	Feb. 19, 2023	3,064	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
March 25, 2013	KOP	Common Stock	6	Direct
Feb. 15, 2013	KOP	Common Stock [F1]	3,567	Direct