Mary S. Chan

CIK: 0001641154

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)2 (13.3%)

Position reduction

Option Exercises (M)8 (53.3%)

Derivative conversions

Awards (A)2 (13.3%)

Compensation grants

Other (G, F, J, C, D, …)3 (20.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

SBAC

SBA COMMUNICATIONS CORP

Director

NKLA

Nikola Corp

Officer

Discretionary Trading P&L

Holdings

Transaction History (15 total)

SBAC
SBA COMMUNICATIONS CORP
May 22, 2026
Award(A)
Restricted Stock Units
Direct
1.1K shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2026
Exercise(M)
Direct
248 shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2026
Exercise(M)
Direct
302 shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2026
Exercise(M)
Direct
331 shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2026
Tax Payment(F)
Direct
326 shares at avg. $221.20$72K
SBAC
SBA COMMUNICATIONS CORP
Apr 13, 2026
Tax Payment(F)
Direct
1.5K shares at avg. $223.75$325K
SBAC
SBA COMMUNICATIONS CORP
Apr 13, 2026
Exercise(M)
Direct
1.5K shares at avg. $212.31$319K
SBAC
SBA COMMUNICATIONS CORP
May 23, 2025
Award(A)
Restricted Stock Units
Direct
994 shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2025
Exercise(M)
Direct
302 shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2025
Exercise(M)
Direct
175 shares-
SBAC
SBA COMMUNICATIONS CORP
May 1, 2025
Tax Payment(F)
Direct
268 shares at avg. $243.40$65K
SBAC
SBA COMMUNICATIONS CORP
May 1, 2025
Exercise(M)
Direct
248 shares-
SBAC
SBA COMMUNICATIONS CORP
Feb 28, 2025
Exercise(M)
Direct
1.4K shares at avg. $157.51$222K
SBAC
SBA COMMUNICATIONS CORP
Feb 28, 2025
Sale(S)
Direct
1.4K shares at avg. $218.07$308K
NKLA
Nikola Corp
Sep 4, 2024
Sale(S)
Direct
717 shares at avg. $6.18$4K

		Type	Shares	Price		Ownership
May 22, 2026	SBAC SBA COMMUNICATIONS CORP	Award(A) Restricted Stock Units	1,108	-	-	Direct
May 1, 2026	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	248	-	$0	Direct
May 1, 2026	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	302	-	$0	Direct
May 1, 2026	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	331	-	$0	Direct
May 1, 2026	SBAC SBA COMMUNICATIONS CORP	Tax Payment(F)	326	$221.20	$72,104	Direct
Apr 13, 2026	SBAC SBA COMMUNICATIONS CORP	Tax Payment(F)	1,453	$223.75	$325,109	Direct
Apr 13, 2026	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	1,501	$212.31	$318,677	Direct
May 23, 2025	SBAC SBA COMMUNICATIONS CORP	Award(A) Restricted Stock Units	994	-	-	Direct
May 1, 2025	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	302	-	-	Direct
May 1, 2025	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	175	-	-	Direct
May 1, 2025	SBAC SBA COMMUNICATIONS CORP	Tax Payment(F)	268	$243.40	$65,292	Direct
May 1, 2025	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	248	-	-	Direct
Feb 28, 2025	SBAC SBA COMMUNICATIONS CORP	Exercise(M)	1,411	$157.51	$222,247	Direct
Feb 28, 2025	SBAC SBA COMMUNICATIONS CORP	Sale(S)	1,411	$218.07	$307,697	Direct
Sep 4, 2024	NKLA Nikola Corp	Sale(S)	717	$6.18	$4,429	Direct

1-15 of 15 transactions

About Chan Mary S

Chan Mary S (SEC CIK 0001641154) files insider reports with the SEC as Director of SBA COMMUNICATIONS CORP (SBAC) and Chief Operating Officer of Nikola Corp (NKLA).

Signal8 holds 7 ownership filings by Chan Mary S, all Form 4s, filed between Sep 6, 2024 and May 27, 2026. Those filings report 15 transactions, from Sep 4, 2024 to May 22, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Chan Mary S's filings is in BOCA RATON, FL.

Recent filings by Chan Mary S

May 22, 2026: Grant or award of SBAC derivative securities (Form 4, code A).
May 1, 2026: Option exercises of SBAC shares (3 lines, Form 4, code M).
May 1, 2026: Tax withholding of SBAC shares (Form 4, code F).
Apr 13, 2026: Tax withholding of SBAC shares (Form 4, code F).
Apr 13, 2026: Option exercise of SBAC shares (Form 4, code M).

Other insiders filing for SBA COMMUNICATIONS CORP (SBAC)

Montagner Marc, EVP - CHIEF FINANCIAL OFFICER
Krouse George R Jr, Director
DAY DONALD, EVP - SITE LEASING
BERNSTEIN STEVEN E, Director
STOOPS JEFFREY, Director
Wilson Amy E, Director

How to read Form 4 transaction codes