Company · CIK 0001490892 · SIC 6798 — Real Estate Investment Trusts

CoreSite Realty Corp · COR

Insider activity reported against this company. All insider holders · On EDGAR ↗

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

Open-market buys & salesbuys $564k · 2sales $2.80B · 132net −$2.80B

Reported at this company — common stock

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Mar 6, 2017 SForm 4 →	Mar 8, 9:00 pm EST	Steven James SmithSVP, Sales & Marketing	1,195	$89.07	$106,439	47,079	−2.48%	plan?
Mar 3, 2017 SForm 4 →	Mar 7, 8:51 pm EST	Derek McCandlessSVP, Legal and General Counsel	2,353	$88.89	$209,149	60,846	−3.72%	plan?
Mar 3, 2017 SForm 4 →	Mar 7, 8:50 pm EST	Jeffrey S FinninCFO and Treasurer	3,451	$88.87	$306,684	105,263	−3.17%	plan?
Mar 3, 2017 SForm 4 →	Mar 6, 8:26 pm EST	Steven James SmithSVP, Sales & Marketing	699	$89.34	$62,447	48,274	−1.43%	plan?
Mar 2, 2017 SForm 4 →	Mar 6, 8:18 pm EST	Dominic M. TobinSVP, Operations	1,157	$90.14	$104,293	40,228	−2.80%	plan?
Mar 2, 2017 SForm 4 →	Mar 6, 8:17 pm EST	Brian WarrenSVP, Engineering & Product	258	$90.18	$23,267	32,394	−0.79%	plan?
Mar 1, 2017 MForm 4 →	Mar 2, 8:41 pm EST	Jeffrey S FinninCFO and Treasurer	23,795	$23.99	$570,842	123,239	—	plan?
Feb 28, 2017 SForm 4 →	Mar 2, 8:43 pm EST	Derek McCandlessSVP, Legal and General Counsel	2,867	$90.22	$258,662	63,199	−4.34%	plan?
Feb 28, 2017 SForm 4 →	Mar 2, 8:41 pm EST	Jeffrey S FinninCFO and Treasurer	23,925	$89.77	$2,147,713	108,714	−18.0%	plan?
Dec 5, 2016 PForm 4 →	Dec 6, 7:48 pm EST	Paul E. SzurekPresident & CEO, Director	7,000	$68.92	$482,440	59,561	+13.3%	plan?
Nov 1, 2016 SForm 4 →	Nov 3, 8:25 pm EDT	Derek McCandlessSVP, Legal and General Counsel	10,000	$72.20	$722,026	66,066	−13.1%	plan?
Nov 1, 2016 SForm 4 →	Nov 3, 8:24 pm EDT	Jeffrey S FinninCFO and Treasurer	8,000	$72.20	$577,624	108,844	−6.85%	plan?
Sep 12, 2016 AForm 4 →	Sep 14, 6:53 pm EDT	Paul E. SzurekPresident & CEO, Director	46,561	—	—	52,561	—	plan?
Aug 16, 2016 SForm 4 →	Aug 18, 8:59 pm EDT	Dominic M. TobinSVP, Operations	10,000	$81.65	$816,500	41,385	−19.5%	plan?
Aug 16, 2016 PForm 4 →	Aug 18, 8:58 pm EDT	Paul E. SzurekDirector	1,000	$81.20	$81,200	6,000	+20.0%	plan?
Aug 16, 2016 SForm 4 →	Aug 18, 8:57 pm EDT	Thomas M. RayPresident and CEO, Director	21,179	$81.57	$1,727,571	391,186	−5.14%	plan?
Aug 1, 2016 SForm 4 →	Aug 3, 6:48 pm EDT	Derek McCandlessSVP, Legal and General Counsel	10,000	$82.37	$823,700	76,066	−11.6%	plan?
Aug 1, 2016 SForm 4 →	Aug 3, 6:45 pm EDT	Jeffrey S FinninCFO and Treasurer	8,000	$82.61	$660,856	116,844	−6.41%	plan?
May 20, 2016 MForm 4 →	May 23, 8:37 pm EDT	John David ThompsonDirector	1,915	—	—	5,212	—	plan?
May 13, 2016 SForm 4 →	May 17, 5:08 pm EDT	CRP IV AIV GP, L.L.C. +810% Owner	3,000,000	$76.61	$229,830,000	0	−100%	plan?
May 13, 2016 MForm 4 →	May 17, 5:08 pm EDT	CRP IV AIV GP, L.L.C. +810% Owner	3,000,000	—	—	3,000,000	—	plan?
May 13, 2016 SForm 4 →	May 17, 5:04 pm EDT	Carlyle Realty III, GP, L.L.C. +910% Owner	3,000,000	$76.61	$229,830,000	0	−100%	plan?
May 13, 2016 MForm 4 →	May 17, 5:04 pm EDT	Carlyle Realty III, GP, L.L.C. +910% Owner	3,000,000	—	—	3,000,000	—	plan?
May 13, 2016 SForm 4 →	May 17, 4:59 pm EDT	Carlyle Group Management L.L.C. +610% Owner	3,000,000	$76.61	$229,830,000	0	−100%	plan?
May 13, 2016 MForm 4 →	May 17, 4:59 pm EDT	Carlyle Group Management L.L.C. +610% Owner	3,000,000	—	—	3,000,000	—	plan?
May 2, 2016 SForm 4 →	May 4, 7:37 pm EDT	Derek McCandlessSVP, Legal and General Counsel	10,000	$75.47	$754,700	86,066	−10.4%	plan?
May 2, 2016 SForm 4 →	May 4, 7:36 pm EDT	Jeffrey S FinninCFO and Treasurer	4,000	$75.52	$302,087	124,844	−3.10%	plan?
Apr 7, 2016 SForm 4 →	Apr 11, 9:02 pm EDT	Brian WarrenSVP, Engineering & Product	300	$70.76	$21,227	32,652	−0.91%	plan?
Apr 7, 2016 SForm 4 →	Apr 11, 8:59 pm EDT	Dominic M. TobinSVP, Operations	495	$70.79	$35,040	51,385	−0.95%	plan?
Apr 7, 2016 SForm 4 →	Apr 11, 8:58 pm EDT	Thomas M. RayPresident and CEO, Director	4,185	$70.75	$296,089	412,365	−1.00%	plan?
Apr 7, 2016 SForm 4 →	Apr 11, 8:57 pm EDT	Derek McCandlessSVP, Legal and General Counsel	635	$70.78	$44,946	96,066	−0.66%	plan?
Apr 5, 2016 SForm 4 →	Apr 7, 7:55 pm EDT	Jeffrey S FinninCFO and Treasurer	1,595	$70.24	$112,033	128,844	−1.22%	plan?
Mar 14, 2016 SForm 4 →	Mar 16, 8:35 pm EDT	Jeffrey S FinninCFO and Treasurer	4,000	$67.00	$268,000	130,439	−2.98%	plan?
Mar 8, 2016 SForm 4 →	Mar 10, 8:56 pm EST	Brian WarrenSVP, Engineering & Product	422	$64.89	$27,383	32,952	−1.26%	plan?
Mar 8, 2016 SForm 4 →	Mar 10, 8:56 pm EST	Dominic M. TobinSVP, Operations	641	$64.86	$41,572	51,880	−1.22%	plan?
Mar 8, 2016 SForm 4 →	Mar 10, 8:55 pm EST	Thomas M. RayPresident and CEO, Director	6,460	$64.77	$418,414	416,550	−1.53%	plan?
Mar 8, 2016 SForm 4 →	Mar 10, 8:54 pm EST	Derek McCandlessSVP, Legal and General Counsel	1,010	$64.91	$65,559	96,701	−1.03%	plan?
Mar 7, 2016 SForm 4 →	Mar 8, 7:33 pm EST	Brian WarrenSVP, Engineering & Product	410	$65.24	$26,748	33,374	−1.21%	plan?
Mar 7, 2016 SForm 4 →	Mar 8, 7:32 pm EST	Dominic M. TobinSVP, Operations	455	$65.12	$29,628	52,521	−0.86%	plan?
Mar 7, 2016 SForm 4 →	Mar 8, 7:32 pm EST	Thomas M. RayPresident and CEO, Director	3,080	$64.96	$200,075	423,010	−0.72%	plan?
Mar 7, 2016 SForm 4 →	Mar 8, 7:31 pm EST	Derek McCandlessSVP, Legal and General Counsel	658	$65.22	$42,917	97,711	−0.67%	plan?
Mar 4, 2016 SForm 4 →	Mar 8, 7:31 pm EST	Jeffrey S FinninCFO and Treasurer	2,080	$64.12	$133,370	134,439	−1.52%	plan?
Mar 3, 2016 SForm 4 →	Mar 4, 8:29 pm EST	Jeffrey S FinninCFO and Treasurer	1,371	$63.82	$87,497	136,519	−0.99%	plan?
Mar 2, 2016 AForm 4 →	Mar 4, 8:33 pm EST	Brian WarrenSVP, Engineering & Product	8,074	—	—	33,784	—	plan?
Mar 2, 2016 AForm 4 →	Mar 4, 8:33 pm EST	Dominic M. TobinSVP, Operations	8,074	—	—	52,976	—	plan?
Mar 2, 2016 AForm 4 →	Mar 4, 8:32 pm EST	Steven James SmithSVP, Sales & Marketing	15,140	—	—	48,973	—	plan?
Mar 2, 2016 AForm 4 →	Mar 4, 8:31 pm EST	Thomas M. RayPresident and CEO, Director	44,411	—	—	426,090	—	plan?
Mar 2, 2016 AForm 4 →	Mar 4, 8:30 pm EST	Derek McCandlessSVP, Legal and General Counsel	10,094	—	—	98,369	—	plan?
Mar 2, 2016 AForm 4 →	Mar 4, 8:29 pm EST	Jeffrey S FinninCFO and Treasurer	12,112	—	—	137,890	—	plan?
Mar 1, 2016 SForm 4 →	Mar 3, 9:34 pm EST	Brian WarrenSVP, Products & Marketing	267	$64.39	$17,192	25,710	−1.03%	plan?
Mar 1, 2016 SForm 4 →	Mar 3, 9:33 pm EST	Dominic M. TobinSVP, Operations	527	$64.93	$34,218	44,902	−1.16%	plan?
Mar 1, 2016 SForm 4 →	Mar 3, 9:31 pm EST	Thomas M. RayPresident and CEO, Director	2,310	$64.76	$149,596	381,679	−0.60%	plan?
Mar 1, 2016 SForm 4 →	Mar 3, 9:29 pm EST	Derek McCandlessGeneral Counsel and SVP, Legal	790	$64.80	$51,192	88,275	−0.89%	plan?
Feb 29, 2016 SForm 4 →	Mar 2, 6:55 pm EST	Jeffrey S FinninCFO and Treasurer	1,400	$66.47	$93,058	125,778	−1.10%	plan?
Nov 3, 2015 SForm 4 →	Nov 5, 4:06 pm EST	Carlyle Group Management L.L.C. +610% Owner	4,000,000	$54.56	$218,240,000	0	−100%	plan?
Nov 3, 2015 MForm 4 →	Nov 5, 4:06 pm EST	Carlyle Group Management L.L.C. +610% Owner	4,000,000	—	—	4,000,000	—	plan?
Nov 3, 2015 SForm 4 →	Nov 5, 4:05 pm EST	CRP IV AIV GP, L.L.C. +810% Owner	4,000,000	$54.56	$218,240,000	0	−100%	plan?
Nov 3, 2015 MForm 4 →	Nov 5, 4:05 pm EST	CRP IV AIV GP, L.L.C. +810% Owner	4,000,000	—	—	4,000,000	—	plan?
Nov 3, 2015 SForm 4 →	Nov 5, 4:05 pm EST	Carlyle Realty III, GP, L.L.C. +910% Owner	4,000,000	$54.56	$218,240,000	0	−100%	plan?
Nov 3, 2015 MForm 4 →	Nov 5, 4:05 pm EST	Carlyle Realty III, GP, L.L.C. +910% Owner	4,000,000	—	—	4,000,000	—	plan?
Nov 2, 2015 SForm 4 →	Nov 4, 6:47 pm EST	Thomas M. RayPresident and CEO, Director	11,819	$56.77	$670,956	383,989	−2.99%	plan?
Nov 2, 2015 SForm 4 →	Nov 4, 6:46 pm EST	Jeffrey S FinninCFO and Treasurer	4,000	$55.10	$220,400	127,178	−3.05%	plan?
Oct 26, 2015 SForm 4 →	Oct 28, 9:39 pm EDT	Brian WarrenSVP, Products & Marketing	360	$56.25	$20,251	25,977	−1.37%	plan?
Aug 13, 2015 SForm 4 →	Aug 14, 9:13 pm EDT	Dominic M. TobinSVP, Operations	10,000	$49.69	$496,940	45,429	−18.0%	plan?
Jul 29, 2015 FMForm 4 →	Jul 31, 8:04 pm EDT	Dominic M. TobinSVP, Operations	77,947	$30.61	$2,385,804	55,429	—	plan?
Jul 29, 2015 FMForm 4 →	Jul 31, 8:02 pm EDT	Thomas M. RayPresident and CEO, Director	151,503	$36.75	$5,568,150	395,808	—	plan?
Jul 29, 2015 FMForm 4 →	Jul 31, 8:00 pm EDT	Derek McCandlessGeneral Counsel and SVP, Legal	73,327	$32.31	$2,369,325	89,065	—	plan?
Jul 29, 2015 FMForm 4 →	Jul 31, 7:58 pm EDT	Billie R. HaggardSVP, Data Centers	74,596	$30.65	$2,286,256	62,678	—	plan?
Jul 29, 2015 FMForm 4 →	Jul 31, 7:54 pm EDT	Jeffrey S FinninCFO and Treasurer	100,655	$28.20	$2,838,740	131,178	—	plan?
Jul 2, 2015 SForm 4 →	Jul 7, 7:40 pm EDT	Billie R. HaggardSVP, Data Centers	5,000	$46.59	$232,950	43,986	−10.2%	plan?
Jul 2, 2015 MForm 4 →	Jul 7, 7:40 pm EDT	Billie R. HaggardSVP, Data Centers	5,000	$16.00	$80,000	48,986	—	plan?
May 29, 2015 MForm 4 →	Jun 2, 9:08 pm EDT	John David ThompsonDirector	2,797	—	—	3,297	—	plan?
May 1, 2015 FMForm 4 →	May 5, 9:24 pm EDT	Thomas M. RayPresident and CEO, Director	90,555	$28.21	$2,554,725	374,629	—	plan?
May 1, 2015 SForm 4 →	May 5, 4:05 pm EDT	Carlyle Realty III, GP, L.L.C. +910% Owner	4,500,000	$48.67	$219,015,000	0	−100%	plan?
May 1, 2015 MForm 4 →	May 5, 4:05 pm EDT	Carlyle Realty III, GP, L.L.C. +910% Owner	4,500,000	—	—	4,500,000	—	plan?
May 1, 2015 SForm 4 →	May 5, 4:05 pm EDT	CRP IV AIV GP, L.L.C. +810% Owner	4,500,000	$48.67	$219,015,000	0	−100%	plan?
May 1, 2015 MForm 4 →	May 5, 4:05 pm EDT	CRP IV AIV GP, L.L.C. +810% Owner	4,500,000	—	—	4,500,000	—	plan?
May 1, 2015 SForm 4 →	May 5, 4:05 pm EDT	Carlyle Group Management L.L.C. +610% Owner	4,500,000	$48.67	$219,015,000	0	−100%	plan?
May 1, 2015 MForm 4 →	May 5, 4:05 pm EDT	Carlyle Group Management L.L.C. +610% Owner	4,500,000	—	—	4,500,000	—	plan?
Apr 10, 2015 SForm 4 →	Apr 14, 6:51 pm EDT	Thomas M. RayPresident and CEO, Director	5,318	$50.60	$269,091	354,758	−1.48%	plan?
Apr 8, 2015 SForm 4 →	Apr 10, 7:35 pm EDT	Derek McCandlessGeneral Counsel and SVP, Legal	656	$49.76	$32,643	72,392	−0.90%	plan?
Apr 8, 2015 SForm 4 →	Apr 10, 7:34 pm EDT	Dominic M. TobinSVP, Operations	514	$49.70	$25,546	36,874	−1.37%	plan?
Apr 6, 2015 SForm 4 →	Apr 8, 7:19 pm EDT	Jeffrey S FinninCFO and Treasurer	1,451	$50.72	$73,595	107,409	−1.33%	plan?
Mar 18, 2015 SForm 4 →	Mar 20, 7:27 pm EDT	Thomas M. RayPresident and CEO, Director	5,318	$48.29	$256,806	360,076	−1.46%	plan?
Mar 13, 2015 SForm 4 →	Mar 17, 8:08 pm EDT	Dominic M. TobinSVP, Operations	667	$46.76	$31,189	37,388	−1.75%	plan?
Mar 13, 2015 SForm 4 →	Mar 17, 8:07 pm EDT	Derek McCandlessGeneral Counsel and SVP, Legal	630	$46.72	$29,434	73,048	−0.86%	plan?
Mar 11, 2015 SForm 4 →	Mar 13, 6:18 pm EDT	Jeffrey S FinninCFO and Treasurer	1,969	$46.24	$91,047	108,860	−1.78%	plan?
Mar 9, 2015 SForm 4 →	Mar 11, 7:08 pm EDT	Derek McCandlessGeneral Counsel and SVP, Legal	1,040	$46.53	$48,391	73,678	−1.39%	plan?
Mar 9, 2015 SForm 4 →	Mar 11, 7:07 pm EDT	Thomas M. RayPresident and CEO, Director	6,240	$46.19	$288,226	365,394	−1.68%	plan?
Mar 5, 2015 SForm 4 →	Mar 9, 8:06 pm EDT	Thomas M. RayPresident and CEO, Director	3,125	$47.98	$149,938	371,634	−0.83%	plan?
Mar 4, 2015 SForm 4 →	Mar 5, 7:18 pm EST	Jeffrey S FinninCFO and Treasurer	1,891	$48.14	$91,033	110,829	−1.68%	plan?
Mar 3, 2015 AForm 4 →	Mar 5, 7:24 pm EST	Dominic M. TobinSVP, Operations	8,106	—	—	38,055	—	plan?
Mar 3, 2015 SForm 4 →	Mar 5, 7:24 pm EST	Dominic M. TobinSVP, Operations	512	$47.39	$24,264	29,949	−1.68%	plan?
Mar 3, 2015 AForm 4 →	Mar 5, 7:22 pm EST	Billie R. HaggardSVP, Data Centers	8,106	—	—	43,986	—	plan?
Mar 3, 2015 AForm 4 →	Mar 5, 7:21 pm EST	Steven James SmithSVP, Sales	13,507	—	—	33,833	—	plan?
Mar 3, 2015 AForm 4 →	Mar 5, 7:20 pm EST	Derek McCandlessGeneral Counsel and SVP, Legal	13,507	—	—	74,718	—	plan?
Mar 3, 2015 SForm 4 →	Mar 5, 7:20 pm EST	Derek McCandlessGeneral Counsel and SVP, Legal	795	$47.36	$37,651	61,211	−1.28%	plan?
Mar 3, 2015 AForm 4 →	Mar 5, 7:18 pm EST	Jeffrey S FinninCFO and Treasurer	16,208	—	—	112,720	—	plan?
Mar 3, 2015 AForm 4 →	Mar 5, 7:17 pm EST	Thomas M. RayPresident and CEO, Director	59,433	—	—	374,759	—	plan?
Mar 2, 2015 SForm 4 →	Mar 4, 8:54 pm EST	Jeffrey S FinninCFO and Treasurer	1,273	$47.92	$61,008	96,512	−1.30%	plan?

Reported at this company — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake
Oct 15, 2015 AForm 4 →	Oct 19, 6:26 pm EDT	David A WilsonDirector	98	—	—	12,979	—
Oct 15, 2015 AForm 4 →	Oct 19, 6:25 pm EDT	John David ThompsonDirector	77	—	—	10,136	—
Oct 15, 2015 AForm 4 →	Oct 19, 6:23 pm EDT	Paul E. SzurekDirector	98	—	—	12,979	—
Oct 15, 2015 AForm 4 →	Oct 19, 6:22 pm EDT	Michael R KoehlerDirector	98	—	—	12,979	—
Jul 29, 2015 MForm 4 →	Jul 31, 8:04 pm EDT	Dominic M. TobinSVP, Operations	48,251	—	—	5,014	—
Jul 29, 2015 MForm 4 →	Jul 31, 8:02 pm EDT	Thomas M. RayPresident and CEO, Director	86,341	—	—	30,090	—
Jul 29, 2015 MForm 4 →	Jul 31, 8:00 pm EDT	Derek McCandlessGeneral Counsel and SVP, Legal	45,000	—	—	9,628	—
Jul 29, 2015 MForm 4 →	Jul 31, 7:58 pm EDT	Billie R. HaggardSVP, Data Centers	46,644	—	—	5,214	—
Jul 29, 2015 MForm 4 →	Jul 31, 7:54 pm EDT	Jeffrey S FinninCFO and Treasurer	62,212	—	—	0	—
Jul 15, 2015 AForm 4 →	Jul 17, 7:12 pm EDT	John David ThompsonDirector	87	—	—	10,059	—
Jul 15, 2015 AForm 4 →	Jul 17, 7:11 pm EDT	David A WilsonDirector	112	—	—	12,881	—
Jul 15, 2015 AForm 4 →	Jul 17, 7:10 pm EDT	Paul E. SzurekDirector	112	—	—	12,881	—
Jul 15, 2015 AForm 4 →	Jul 17, 7:10 pm EDT	Michael R KoehlerDirector	112	—	—	12,881	—
Jul 2, 2015 MForm 4 →	Jul 7, 7:40 pm EDT	Billie R. HaggardSVP, Data Centers	5,000	—	—	13,750	—
May 29, 2015 MForm 4 →	Jun 2, 9:08 pm EDT	John David ThompsonDirector	2,797	—	—	9,972	—
May 20, 2015 AForm 4 →	May 22, 4:53 pm EDT	John David ThompsonDirector	1,581	—	—	12,769	—
May 20, 2015 AForm 4 →	May 22, 4:53 pm EDT	David A WilsonDirector	1,581	—	—	12,769	—
May 20, 2015 AForm 4 →	May 22, 4:52 pm EDT	Paul E. SzurekDirector	1,581	—	—	12,769	—
May 20, 2015 AForm 4 →	May 22, 4:51 pm EDT	Michael R KoehlerDirector	1,581	—	—	12,769	—
May 1, 2015 MForm 4 →	May 5, 9:24 pm EDT	Thomas M. RayPresident and CEO, Director	55,213	—	—	0	—
May 1, 2015 MForm 4 →	May 5, 4:05 pm EDT	Carlyle Realty III, GP, L.L.C. +910% Owner	4,500,000	—	—	20,775,390	—
May 1, 2015 MForm 4 →	May 5, 4:05 pm EDT	CRP IV AIV GP, L.L.C. +810% Owner	4,500,000	—	—	20,775,390	—
May 1, 2015 MForm 4 →	May 5, 4:05 pm EDT	Carlyle Group Management L.L.C. +610% Owner	4,500,000	—	—	20,775,390	—
Apr 15, 2015 AForm 4 →	Apr 17, 6:27 pm EDT	John David ThompsonDirector	94	—	—	11,188	—
Apr 15, 2015 AForm 4 →	Apr 17, 6:26 pm EDT	David A WilsonDirector	94	—	—	11,188	—
Apr 15, 2015 AForm 4 →	Apr 17, 6:22 pm EDT	Paul E. SzurekDirector	94	—	—	11,188	—
Apr 15, 2015 AForm 4 →	Apr 17, 6:22 pm EDT	Michael R KoehlerDirector	94	—	—	11,188	—
Jan 15, 2015 AForm 4 →	Jan 20, 9:14 pm EST	Michael R KoehlerDirector	107	—	—	11,094	—
Jan 15, 2015 AForm 4 →	Jan 20, 9:13 pm EST	Paul E. SzurekDirector	107	—	—	11,094	—
Jan 15, 2015 AForm 4 →	Jan 20, 9:13 pm EST	David A WilsonDirector	107	—	—	11,094	—
Jan 15, 2015 AForm 4 →	Jan 20, 9:12 pm EST	John David ThompsonDirector	107	—	—	11,094	—