Insider · CIK 0001553022

William Stein

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $0 · 0sales $1.7M · 10net −$1.7M

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Mar 6, 2019 SForm 4 →	Mar 7, 7:35 pm EST	Core-Mark Holding Company, Inc.CORE	7,500	$38.27	$287,025	94,301	−7.37%	plan?
Jan 23, 2019 AFForm 4 →	Jan 25, 9:53 pm EST	Core-Mark Holding Company, Inc.CORE	19,617	$2.20	$43,222	101,801	—	plan?
Jan 22, 2019 FMForm 4 →	Jan 24, 7:49 pm EST	Core-Mark Holding Company, Inc.CORE	6,313	$5.55	$35,032	85,134	—	plan?
Jan 1, 2019 FMForm 4 →	Jan 3, 7:56 pm EST	Core-Mark Holding Company, Inc.CORE	6,693	$5.46	$36,522	81,257	—	plan?
Jan 23, 2018 FMForm 4 →	Jan 24, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	3,099	$4.61	$14,283	77,630	—	plan?
Jan 1, 2018 FMForm 4/A →	Jan 12, 7:21 pm EST	Core-Mark Holding Company, Inc.CORE	8,855	$0.01	$89	75,747	—	plan?
Jan 1, 2018 FMForm 4 →	Jan 3, 8:35 pm EST	Core-Mark Holding Company, Inc.CORE	8,856	$11.49	$101,741	75,746	—	plan? amended
Jun 9, 2017 SForm 4 →	Jun 12, 8:49 pm EDT	Core-Mark Holding Company, Inc.CORE	7,500	$35.91	$269,357	73,402	−9.27%	plan?
Jan 20, 2017 FMForm 4 →	Jan 25, 9:56 pm EST	Core-Mark Holding Company, Inc.CORE	3,396	$8.62	$29,285	81,066	—	plan? late
Jan 1, 2017 FMForm 4/A →	Feb 16, 6:00 am EST	Core-Mark Holding Company, Inc.CORE	14,022	$19.70	$276,264	78,966	—	plan?
Jan 1, 2017 FMForm 4 →	Jan 11, 10:56 am EST	Core-Mark Holding Company, Inc.CORE	13,858	$19.43	$269,209	79,130	—	plan? late amended
Dec 19, 2016 SForm 4 →	Dec 20, 4:28 pm EST	Core-Mark Holding Company, Inc.CORE	3,500	$43.36	$151,755	77,784	−4.31%	plan?
Mar 15, 2016 SForm 4 →	Mar 18, 9:21 am EDT	Core-Mark Holding Company, Inc.CORE	2,000	$78.84	$157,678	40,642	−4.69%	plan? late
Jan 21, 2016 AFMForm 4 →	Jan 25, 9:56 pm EST	Core-Mark Holding Company, Inc.CORE	10,111	$2.23	$22,549	42,642	—	plan?
Jan 1, 2016 FMForm 4 →	Jan 8, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	9,851	$26.48	$260,882	33,127	—	plan? late
Nov 20, 2015 SForm 4 →	Nov 25, 10:28 am EST	Core-Mark Holding Company, Inc.CORE	5,000	$82.13	$410,669	35,842	−12.2%	plan? late
Nov 16, 2015 SForm 4 →	Nov 18, 8:35 pm EST	Core-Mark Holding Company, Inc.CORE	204	$82.86	$16,904	40,842	−0.50%	plan?
Nov 16, 2015 MForm 4 →	Nov 18, 8:35 pm EST	Core-Mark Holding Company, Inc.CORE	204	$9.60	$1,957	41,046	—	plan?
Aug 17, 2015 SForm 4 →	Dec 15, 9:28 pm EST	Core-Mark Holding Company, Inc.CORE	3,200	$64.46	$206,272	34,642	−8.46%	plan? late
Jun 30, 2015 FMForm 4 →	Jul 2, 9:49 pm EDT	Core-Mark Holding Company, Inc.CORE	714	$21.75	$15,528	40,842	—	plan?
Mar 31, 2015 FMForm 4/A →	Jul 2, 9:49 pm EDT	Core-Mark Holding Company, Inc.CORE	713	$23.55	$16,792	40,652	—	plan?
Mar 31, 2015 FMForm 4 →	Apr 2, 9:49 pm EDT	Core-Mark Holding Company, Inc.CORE	713	$23.55	$16,792	41,946	—	plan? amended
Mar 19, 2015 SForm 4 →	Dec 15, 9:35 pm EST	Core-Mark Holding Company, Inc.CORE	1,500	$64.06	$96,090	34,642	−4.15%	plan? late
Feb 3, 2015 FMForm 4/A →	Mar 20, 6:14 pm EDT	Core-Mark Holding Company, Inc.CORE	4,265	$30.87	$131,680	40,461	—	plan?
Feb 3, 2015 FMForm 4 →	Feb 5, 9:49 pm EST	Core-Mark Holding Company, Inc.CORE	2,971	$14.66	$43,546	41,755	—	plan? amended
Jan 21, 2015 AForm 4 →	Feb 3, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	14,186	$0.01	$142	40,062	—	plan? late
Jan 2, 2015 FMForm 4 →	Jan 6, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	5,572	$13.55	$75,524	25,876	—	plan?
Dec 31, 2014 FMForm 4 →	Jan 5, 2015, 9:28 pm EST	Core-Mark Holding Company, Inc.CORE	711	$22.74	$16,168	22,780	—	plan?
Jul 30, 2014 SForm 4 →	Dec 15, 2015, 9:28 pm EST	Core-Mark Holding Company, Inc.CORE	500	$47.33	$23,665	34,642	−1.42%	plan? late
Mar 7, 2014 SForm 4 →	Dec 15, 2015, 9:28 pm EST	Core-Mark Holding Company, Inc.CORE	500	$76.76	$38,381	34,642	−1.42%	plan? late

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Jan 23, 2019 AForm 4 →	Jan 25, 9:53 pm EST	Core-Mark Holding Company, Inc.CORE	12,463	—	—	12,463	—
Jan 22, 2019 MForm 4 →	Jan 24, 7:49 pm EST	Core-Mark Holding Company, Inc.CORE	5,095	—	—	10,192	—
Jan 1, 2019 MForm 4 →	Jan 3, 7:56 pm EST	Core-Mark Holding Company, Inc.CORE	5,160	—	—	2,492	—
Jan 22, 2018 AMForm 4 →	Jan 24, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	17,778	—	—	4,984	—
Jan 1, 2018 MForm 4/A →	Jan 12, 7:21 pm EST	Core-Mark Holding Company, Inc.CORE	5,600	—	—	2,668	—
Jan 1, 2018 MForm 4 →	Jan 3, 8:35 pm EST	Core-Mark Holding Company, Inc.CORE	5,600	—	—	2,668	—	amended
Jan 20, 2017 AMForm 4 →	Jan 25, 9:56 pm EST	Core-Mark Holding Company, Inc.CORE	10,141	—	—	7,475	—	late
Jan 1, 2017 MForm 4/A →	Feb 16, 6:00 am EST	Core-Mark Holding Company, Inc.CORE	7,602	—	—	2,934	—
Jan 1, 2017 MForm 4 →	Jan 11, 10:56 am EST	Core-Mark Holding Company, Inc.CORE	7,602	—	—	2,934	—	late amended
Jan 21, 2016 MForm 4 →	Jan 25, 9:56 pm EST	Core-Mark Holding Company, Inc.CORE	1,466	—	—	2,934	—
Jan 20, 2016 AForm 4 →	Feb 3, 8:35 pm EST	Core-Mark Holding Company, Inc.CORE	4,000	—	—	4,000	—	late
Jan 1, 2016 MForm 4 →	Jan 8, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	6,668	—	—	0	—	late
Nov 16, 2015 MForm 4 →	Nov 18, 8:35 pm EST	Core-Mark Holding Company, Inc.CORE	204	—	—	0	—
Jun 30, 2015 MForm 4 →	Jul 2, 9:49 pm EDT	Core-Mark Holding Company, Inc.CORE	452	—	—	0	—
Mar 31, 2015 MForm 4/A →	Jul 2, 9:49 pm EDT	Core-Mark Holding Company, Inc.CORE	452	—	—	452	—
Mar 31, 2015 MForm 4 →	Apr 2, 9:49 pm EDT	Core-Mark Holding Company, Inc.CORE	452	—	—	452	—	amended
Feb 3, 2015 MForm 4/A →	Mar 20, 6:14 pm EDT	Core-Mark Holding Company, Inc.CORE	2,332	—	—	4,668	—
Feb 3, 2015 MForm 4 →	Feb 5, 9:49 pm EST	Core-Mark Holding Company, Inc.CORE	2,332	—	—	4,668	—	amended
Jan 21, 2015 AForm 4 →	Jan 23, 9:07 pm EST	Core-Mark Holding Company, Inc.CORE	4,400	—	—	4,400	—
Jan 2, 2015 MForm 4 →	Jan 6, 9:42 pm EST	Core-Mark Holding Company, Inc.CORE	4,334	—	—	4,334	—
Dec 31, 2014 MForm 4 →	Jan 5, 2015, 9:28 pm EST	Core-Mark Holding Company, Inc.CORE	450	—	—	904	—