Duncan Cocroft

Insider

First SEC filing: Oct. 26, 2010 · Latest: Feb. 11, 2022

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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

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 86 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

86 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 1, 2023	SBAC	M	175	—	—	350 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 1, 2023	SBAC	M	206	—	—	207 Direct	-49.88%	Disposed	(price as of 2026-08-20)
May 1, 2023	SBAC	M	190	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 1, 2023	SBAC	F	211	$260.89	$55,048	65,842 Direct	-0.32%	Disposed	-30.4% (price as of 2026-08-20)
May 1, 2023	SBAC	M	175	—	—	66,053 Direct	+0.27%	Acquired	(price as of 2026-08-20)
May 1, 2023	SBAC	M	206	—	—	65,878 Direct	+0.31%	Acquired	(price as of 2026-08-20)
May 1, 2023	SBAC	M	190	—	—	65,672 Direct	+0.29%	Acquired	(price as of 2026-08-20)
Feb. 27, 2023	SBAC	M	2,308	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 27, 2023	SBAC	F	1,418	$257.82	$365,589	65,482 Direct	-2.12%	Disposed	-29.6% (price as of 2026-08-20)
Feb. 27, 2023	SBAC	M	2,308	$100.00	$230,800	66,900 Direct	+3.57%	Acquired	81.5% (price as of 2026-08-20)
Aug. 4, 2022	SBAC	S	1	$346.26	$346	64,592 Direct	0.00%	Disposed	-47.6% (price as of 2026-08-20)
Aug. 4, 2022	SBAC	S	1,151	$344.50	$396,520	64,593 Direct	-1.75%	Disposed	-47.3% (price as of 2026-08-20)
May 12, 2022	SBAC	A	525	—	—	525 Direct	—	Acquired	(price as of 2026-08-20)
May 1, 2022	SBAC	M	206	—	—	413 Direct	-33.28%	Disposed	(price as of 2026-08-20)
May 1, 2022	SBAC	M	190	—	—	190 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 1, 2022	SBAC	M	183	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 1, 2022	SBAC	F	214	$347.11	$74,282	65,744 Direct	-0.32%	Disposed	-47.7% (price as of 2026-08-20)
May 1, 2022	SBAC	M	206	—	—	65,958 Direct	+0.31%	Acquired	(price as of 2026-08-20)
May 1, 2022	SBAC	M	190	—	—	65,752 Direct	+0.29%	Acquired	(price as of 2026-08-20)
May 1, 2022	SBAC	M	183	—	—	65,562 Direct	+0.28%	Acquired	(price as of 2026-08-20)
March 8, 2022	SBAC	M	1,899	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 8, 2022	SBAC	F	1,112	$331.90	$369,073	65,379 Direct	-1.67%	Disposed	-45.3% (price as of 2026-08-20)
March 8, 2022	SBAC	M	1,899	$113.55	$215,631	66,491 Direct	+2.94%	Acquired	59.8% (price as of 2026-08-20)
May 18, 2021	SBAC	S	1,804	$290.27	$523,647	66,592 Direct	-2.64%	Disposed	-37.5% (price as of 2026-08-20)
May 13, 2021	SBAC	A	619	—	—	619 Direct	—	Acquired	(price as of 2026-08-20)
May 1, 2021	SBAC	M	190	—	—	380 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 1, 2021	SBAC	M	182	—	—	183 Direct	-49.86%	Disposed	(price as of 2026-08-20)
May 1, 2021	SBAC	M	201	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 1, 2021	SBAC	F	214	$299.72	$64,140	68,396 Direct	-0.31%	Disposed	-39.4% (price as of 2026-08-20)
May 1, 2021	SBAC	M	190	—	—	68,610 Direct	+0.28%	Acquired	(price as of 2026-08-20)
May 1, 2021	SBAC	M	182	—	—	68,420 Direct	+0.27%	Acquired	(price as of 2026-08-20)
May 1, 2021	SBAC	M	201	—	—	68,238 Direct	+0.30%	Acquired	(price as of 2026-08-20)
Sept. 9, 2020	SBAC	M	2,202	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 9, 2020	SBAC	S	2,202	$314.26	$692,001	68,037 Direct	-3.14%	Disposed	-42.2% (price as of 2026-08-20)
Sept. 9, 2020	SBAC	M	2,202	$96.80	$213,154	70,239 Direct	+3.24%	Acquired	87.5% (price as of 2026-08-20)
May 14, 2020	SBAC	A	570	—	—	570 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2020	SBAC	G	500	—	—	68,037 Direct	-0.73%	Disposed	(price as of 2026-08-20)
May 12, 2020	SBAC	S	1,000	$293.50	$293,500	68,537 Direct	-1.44%	Disposed	-38.2% (price as of 2026-08-20)
May 8, 2020	SBAC	S	410	$291.00	$119,310	69,537 Direct	-0.59%	Disposed	-37.6% (price as of 2026-08-20)
May 1, 2020	SBAC	M	181	—	—	365 Direct	-33.15%	Disposed	(price as of 2026-08-20)
May 1, 2020	SBAC	M	201	—	—	201 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 1, 2020	SBAC	M	270	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 1, 2020	SBAC	F	242	$289.92	$70,161	69,947 Direct	-0.34%	Disposed	-37.4% (price as of 2026-08-20)
May 1, 2020	SBAC	M	181	—	—	70,189 Direct	+0.26%	Acquired	(price as of 2026-08-20)
May 1, 2020	SBAC	M	201	—	—	70,008 Direct	+0.29%	Acquired	(price as of 2026-08-20)
May 1, 2020	SBAC	M	270	—	—	69,807 Direct	+0.39%	Acquired	(price as of 2026-08-20)
Feb. 26, 2020	SBAC	M	1,999	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Feb. 26, 2020	SBAC	S	822	$292.18	$240,172	69,537 Direct	-1.17%	Disposed	-37.9% (price as of 2026-08-20)
Feb. 26, 2020	SBAC	S	1,177	$291.46	$343,048	70,359 Direct	-1.65%	Disposed	-37.7% (price as of 2026-08-20)
Feb. 26, 2020	SBAC	M	1,999	$79.67	$159,260	71,536 Direct	+2.87%	Acquired	127.8% (price as of 2026-08-20)
May 30, 2019	SBAC	S	6,453	$209.71	$1,353,259	69,774 Direct	-8.47%	Disposed	-13.5% (price as of 2026-08-20)
May 16, 2019	SBAC	A	546	—	—	546 Direct	—	Acquired	(price as of 2026-08-20)
May 16, 2019	SBAC	A	1,501	—	—	1,501 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2019	SBAC	M	303	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 13, 2019	SBAC	F	113	$210.39	$23,774	76,227 Direct	-0.15%	Disposed	-13.7% (price as of 2026-08-20)
May 13, 2019	SBAC	M	303	—	—	76,340 Direct	+0.40%	Acquired	(price as of 2026-08-20)
May 1, 2019	SBAC	M	200	—	—	402 Direct	-33.22%	Disposed	(price as of 2026-08-20)
May 1, 2019	SBAC	M	269	—	—	270 Direct	-49.91%	Disposed	(price as of 2026-08-20)
May 1, 2019	SBAC	F	174	$203.73	$35,449	76,037 Direct	-0.23%	Disposed	-10.9% (price as of 2026-08-20)
May 1, 2019	SBAC	M	200	—	—	76,211 Direct	+0.26%	Acquired	(price as of 2026-08-20)
May 1, 2019	SBAC	M	269	—	—	76,011 Direct	+0.36%	Acquired	(price as of 2026-08-20)
March 6, 2019	SBAC	M	1,643	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 6, 2019	SBAC	S	1,643	$181.84	$298,763	75,742 Direct	-2.12%	Disposed	-0.2% (price as of 2026-08-20)
March 6, 2019	SBAC	M	1,643	$50.35	$82,725	77,385 Direct	+2.17%	Acquired	260.5% (price as of 2026-08-20)
Nov. 19, 2018	SBAC	S	12,543	$171.85	$2,155,515	75,742 Direct	-14.21%	Disposed	5.6% (price as of 2026-08-20)
May 17, 2018	SBAC	A	602	—	—	602 Direct	—	Acquired	(price as of 2026-08-20)
May 17, 2018	SBAC	A	1,411	—	—	1,411 Direct	—	Acquired	(price as of 2026-08-20)
May 16, 2018	SBAC	M	249	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 16, 2018	SBAC	M	249	—	—	88,285 Direct	+0.28%	Acquired	(price as of 2026-08-20)
May 13, 2018	SBAC	M	302	—	—	303 Direct	-49.92%	Disposed	(price as of 2026-08-20)
May 13, 2018	SBAC	M	302	—	—	88,036 Direct	+0.34%	Acquired	(price as of 2026-08-20)
May 1, 2018	SBAC	M	268	—	—	539 Direct	-33.21%	Disposed	(price as of 2026-08-20)
May 1, 2018	SBAC	M	268	—	—	87,734 Direct	+0.31%	Acquired	(price as of 2026-08-20)
March 13, 2018	SBAC	G	500	—	—	87,466 Direct	-0.57%	Disposed	(price as of 2026-08-20)
March 12, 2018	SBAC	P	500	$167.29	$83,645	87,966 Direct	+0.57%	Acquired	8.5% (price as of 2026-08-20)
Jan. 22, 2018	SBAC	M	2,015	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 22, 2018	SBAC	M	2,015	$37.76	$76,086	87,466 Direct	+2.36%	Acquired	380.7% (price as of 2026-08-20)
May 18, 2017	SBAC	A	807	—	—	807 Direct	—	Acquired	(price as of 2026-08-20)
May 18, 2017	SBAC	A	1,977	—	—	1,977 Direct	—	Acquired	(price as of 2026-08-20)
May 17, 2017	SBAC	M	249	—	—	85,451 Direct	+0.29%	Acquired	(price as of 2026-08-20)
May 17, 2017	SBAC	M	249	—	—	249 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 13, 2017	SBAC	M	302	—	—	605 Direct	-33.30%	Disposed	(price as of 2026-08-20)
May 13, 2017	SBAC	M	302	—	—	85,202 Direct	+0.36%	Acquired	(price as of 2026-08-20)
May 8, 2017	SBAC	M	303	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 8, 2017	SBAC	M	303	—	—	84,900 Direct	+0.36%	Acquired	(price as of 2026-08-20)
March 15, 2017	SBAC	M	2,042	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 15, 2017	SBAC	M	2,042	$32.81	$66,998	84,597 Direct	+2.47%	Acquired	453.2% (price as of 2026-08-20)
Sept. 15, 2016	SBAC	P	500	$109.14	$54,570	82,805 Direct	+0.61%	Acquired	66.3% (price as of 2026-08-20)
June 16, 2016	SBAC	P	1,000	$100.16	$100,160	82,125 Direct	+1.23%	Acquired	81.2% (price as of 2026-08-20)
May 13, 2016	SBAC	A	907	—	—	907 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2016	SBAC	A	2,308	—	—	2,308 Direct	—	Acquired	(price as of 2026-08-20)
May 12, 2016	SBAC	M	249	—	—	498 Direct	-33.33%	Disposed	(price as of 2026-08-20)
May 12, 2016	SBAC	M	249	—	—	81,125 Direct	+0.31%	Acquired	(price as of 2026-08-20)
May 9, 2016	SBAC	M	347	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 9, 2016	SBAC	M	347	—	—	80,876 Direct	+0.43%	Acquired	(price as of 2026-08-20)
May 8, 2016	SBAC	M	303	—	—	303 Direct	-50.00%	Disposed	(price as of 2026-08-20)
May 8, 2016	SBAC	M	303	—	—	80,529 Direct	+0.38%	Acquired	(price as of 2026-08-20)
March 2, 2016	SBAC	M	9,374	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 2, 2016	SBAC	F	4,124	$96.33	$397,265	80,226 Direct	-4.89%	Disposed	88.4% (price as of 2026-08-20)
March 2, 2016	SBAC	M	9,374	$24.38	$228,538	84,350 Direct	+12.50%	Acquired	644.4% (price as of 2026-08-20)

Showing latest 100 of 174 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 1, 2023	SBAC	Restricted Stock Units	Class A Common Stock (175)	—	—	175	Disposed
May 1, 2023	SBAC	Restricted Stock Units	Class A Common Stock (206)	—	—	206	Disposed
May 1, 2023	SBAC	Restricted Stock Units	Class A Common Stock (190)	—	—	190	Disposed
Feb. 27, 2023	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,308)	$100.00	May 13, 2023	2,308	Disposed
May 12, 2022	SBAC	Restricted Stock Units	Class A Common Stock (525)	—	—	525	Acquired
May 1, 2022	SBAC	Restricted Stock Units	Class A Common Stock (206)	—	—	206	Disposed
May 1, 2022	SBAC	Restricted Stock Units	Class A Common Stock (190)	—	—	190	Disposed
May 1, 2022	SBAC	Restricted Stock Units	Class A Common Stock (183)	—	—	183	Disposed
March 8, 2022	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,899)	$113.55	May 21, 2022	1,899	Disposed
May 13, 2021	SBAC	Restricted Stock Units	Class A Common Stock (619)	—	—	619	Acquired
May 1, 2021	SBAC	Restricted Stock Units	Class A Common Stock (190)	—	—	190	Disposed
May 1, 2021	SBAC	Restricted Stock Units	Class A Common Stock (182)	—	—	182	Disposed
May 1, 2021	SBAC	Restricted Stock Units	Class A Common Stock (201)	—	—	201	Disposed
Sept. 9, 2020	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,202)	$96.80	May 8, 2021	2,202	Disposed
May 14, 2020	SBAC	Restricted Stock Units	Class A Common Stock (570)	—	—	570	Acquired
May 1, 2020	SBAC	Restricted Stock Units	Class A Common Stock (181)	—	—	181	Disposed
May 1, 2020	SBAC	Restricted Stock Units	Class A Common Stock (201)	—	—	201	Disposed
May 1, 2020	SBAC	Restricted Stock Units	Class A Common Stock (270)	—	—	270	Disposed
Feb. 26, 2020	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,999)	$79.67	May 9, 2020	1,999	Disposed
May 16, 2019	SBAC	Restricted Stock Units	Class A Common Stock (546)	—	—	546	Acquired
May 16, 2019	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,501)	$212.31	May 16, 2026	1,501	Acquired
May 13, 2019	SBAC	Restricted Stock Units	Class A Common Stock (303)	—	—	303	Disposed
May 1, 2019	SBAC	Restricted Stock Units	Class A Common Stock (200)	—	—	200	Disposed
May 1, 2019	SBAC	Restricted Stock Units	Class A Common Stock (269)	—	—	269	Disposed
March 6, 2019	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,643)	$50.35	May 17, 2019	1,643	Disposed
May 17, 2018	SBAC	Restricted Stock Units	Class A Common Stock (602)	—	—	602	Acquired
May 17, 2018	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,411)	$157.51	May 17, 2025	1,411	Acquired
May 16, 2018	SBAC	Restricted Stock Units	Class A Common Stock (249)	—	—	249	Disposed
May 13, 2018	SBAC	Restricted Stock Units	Class A Common Stock (302)	—	—	302	Disposed
May 1, 2018	SBAC	Restricted Stock Units	Class A Common Stock (268)	—	—	268	Disposed
Jan. 22, 2018	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,015)	$37.76	May 4, 2018	2,015	Disposed
May 18, 2017	SBAC	Restricted Stock Units	Class A Common Stock (807)	—	—	807	Acquired
May 18, 2017	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,977)	$132.00	May 18, 2024	1,977	Acquired
May 17, 2017	SBAC	Restricted Stock Units	Class A Common Stock (249)	—	—	249	Disposed
May 13, 2017	SBAC	Restricted Stock Units	Class A Common Stock (302)	—	—	302	Disposed
May 8, 2017	SBAC	Restricted Stock Units	Class A Common Stock (303)	—	—	303	Disposed
March 15, 2017	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,042)	$32.81	May 6, 2017	2,042	Disposed
May 13, 2016	SBAC	Restricted Stock Units	Class A Common Stock (907)	—	—	907	Acquired
May 13, 2016	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,308)	$100.00	May 13, 2023	2,308	Acquired
May 12, 2016	SBAC	Restricted Stock Units	Class A Common Stock (249)	—	—	249	Disposed
May 9, 2016	SBAC	Restricted Stock Units	Class A Common Stock (347)	—	—	347	Disposed
May 8, 2016	SBAC	Restricted Stock Units	Class A Common Stock (303)	—	—	303	Disposed
March 2, 2016	SBAC	Stock Options (Right to Buy)	Class A Common Stock (9,374)	$24.38	May 7, 2016	9,374	Disposed
Jan. 29, 2016	VC	Restricted Stock Units	Common Stock (638)	—	—	638	Acquired
Dec. 1, 2015	SBAC	Stock Options (Right to Buy)	Class A Common Stock (10,000)	$26.36	May 5, 2016	10,000	Disposed
June 12, 2015	VC	Restricted Stock Units	Common Stock (968)	—	—	968	Acquired
June 9, 2015	VC	Restricted Stock Units	Common Stock (7,868)	—	—	7,868	Disposed
May 21, 2015	SBAC	Restricted Stock Units	Class A Common Stock (747)	—	—	747	Acquired
May 21, 2015	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,899)	$113.55	May 21, 2022	1,899	Acquired
May 17, 2015	SBAC	Restricted Stock Units	Class A Common Stock (483)	—	—	483	Disposed
May 9, 2015	SBAC	Restricted Stock Units	Class A Common Stock (346)	—	—	346	Disposed
May 8, 2015	SBAC	Restricted Stock Units	Class A Common Stock (303)	—	—	303	Disposed
Nov. 10, 2014	SBAC	Stock Options (Right to Buy)	Class A Common Stock (9,514)	$34.49	May 6, 2015	9,514	Disposed
June 13, 2014	VC	Restricted Stock Units	Common Stock (1,133)	—	—	1,133	Acquired
May 8, 2014	SBAC	Restricted Stock Units	Class A Common Stock (909)	—	—	909	Acquired
May 8, 2014	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,202)	$96.80	May 8, 2021	2,202	Acquired
May 7, 2014	SBAC	Restricted Stock Units	Class A Common Stock (347)	—	—	347	Disposed
May 7, 2014	SBAC	Restricted Stock Units	Class A Common Stock (483)	—	—	483	Disposed
May 4, 2014	SBAC	Restricted Stock Units	Class A Common Stock (615)	—	—	615	Disposed
Nov. 7, 2013	SBAC	Stock Options (Right to Buy)	Class A Common Stock (10,000)	$30.07	May 17, 2014	10,000	Disposed
June 14, 2013	VC	Restricted Stock Units	Common Stock (1,619)	—	—	1,619	Acquired
May 9, 2013	SBAC	Restricted Stock Units	Class A Common Stock (1,040)	—	—	1,040	Acquired
May 9, 2013	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,999)	$79.67	May 9, 2020	1,999	Acquired
May 8, 2013	SBAC	Restricted Stock Units	Class A Common Stock (483)	—	—	483	Disposed
May 6, 2013	SBAC	Restricted Stock Units	Class A Common Stock (622)	—	—	622	Disposed
May 4, 2013	SBAC	Restricted Stock Units	Class A Common Stock (615)	—	—	615	Disposed
June 15, 2012	VC	Restricted Stock Units	Common Stock (2,436)	—	—	2,436	Acquired
May 17, 2012	SBAC	Restricted Stock Units	Class A Common Stock (1,449)	—	—	1,449	Acquired
May 17, 2012	SBAC	Stock Options (Right to Buy)	Class A Common Stock (1,643)	$50.35	May 17, 2019	1,643	Acquired
May 6, 2012	SBAC	Restricted Stock Units	Class A Common Stock (622)	—	—	622	Disposed
May 4, 2012	SBAC	Restricted Stock Units	Class A Common Stock (615)	—	—	615	Disposed
June 10, 2011	VC	Restricted Stock Units	Common Stock (1,588)	—	—	1,588	Acquired
May 4, 2011	SBAC	Restricted Stock Units	Class A Common Stock (1,845)	—	—	1,845	Acquired
May 4, 2011	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,015)	$37.76	May 4, 2018	2,015	Acquired
May 3, 2011	SBAC	Restricted Stock Units	Class A Common Stock (622)	—	—	622	Disposed
Dec. 15, 2010	VC	Restricted Stock Units	Common Stock (1,090)	—	—	1,090	Acquired
Dec. 15, 2010	SBAC	Stock Options (Right to Buy)	Class A Common Stock (10,000)	$14.80	July 22, 2015	10,000	Disposed
May 6, 2010	SBAC	Restricted Stock Units	Class A Common Stock (1,866)	—	—	1,866	Acquired
May 6, 2010	SBAC	Stock Options (Right to Buy)	Class A Common Stock (2,042)	$32.81	May 6, 2017	2,042	Acquired
Dec. 16, 2009	SBAC	Stock Options (Right to Buy)	Class A Common Stock (50,000)	$4.67	Aug. 10, 2014	50,000	Disposed
May 7, 2009	SBAC	Stock Options (Right to Buy)	Class A Common Stock (9,374)	$24.38	May 7, 2016	9,374	Acquired
May 6, 2008	SBAC	Stock Options (Right to Buy)	Class A Common Stock (9,514)	$34.49	May 6, 2015	9,514	Acquired
May 17, 2007	SBAC	Stock Options (Right to Buy)	Class A Common Stock (10,000)	$30.07	May 17, 2014	10,000	Acquired
May 5, 2006	SBAC	Stock Options (Right to Buy)	Class A Common Stock (10,000)	$26.36	May 5, 2016	10,000	Acquired
July 22, 2005	SBAC	Stock Options (Right to Buy)	Class A Common Stock (10,000)	$14.80	July 22, 2015	10,000	Acquired
Aug. 10, 2004	SBAC	Stock Options (Right to Buy)	Class A Common Stock (50,000)	$4.67	Aug. 10, 2014	50,000	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
Oct. 26, 2010	VC	No securities owned.	0	Direct