Elizabeth Sestanovich

CIK: 0001907093

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)1 (6.7%)

Compensation grants

Other (G, F, J, C, D, …)14 (93.3%)

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

Companies & Roles (1)

SST

System1, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (15 total)

SST
System1, Inc.
Jul 15, 2026
Tax Payment(F)
Direct
7.1K shares at avg. $2.60$18K
SST
System1, Inc.
Apr 15, 2026
Tax Payment(F)
Direct
341 shares at avg. $2.26$770.66
SST
System1, Inc.
Jan 28, 2026
Tax Payment(F)
Direct
211 shares at avg. $4.18$881.98
SST
System1, Inc.
Jan 15, 2026
Tax Payment(F)
Direct
377 shares at avg. $4.40$2K
SST
System1, Inc.
Oct 28, 2025
Tax Payment(F)
Direct
158 shares at avg. $6.18$976.44
SST
System1, Inc.
Oct 15, 2025
Tax Payment(F)
Direct
282 shares at avg. $7.94$2K
SST
System1, Inc.
Jul 29, 2025
Award(A)
Direct
40K shares-
SST
System1, Inc.
Jul 28, 2025
Tax Payment(F)
Direct
135 shares at avg. $7.51$1K
SST
System1, Inc.
Jul 15, 2025
Tax Payment(F)
Direct
240 shares at avg. $6.33$2K
SST
System1, Inc.
Apr 28, 2025
Tax Payment(F)
Direct
1.3K shares at avg. $0.41$550.22
SST
System1, Inc.
Apr 15, 2025
Tax Payment(F)
Direct
2.4K shares at avg. $0.31$743.38
SST
System1, Inc.
Jan 28, 2025
Tax Payment(F)
Direct
1.5K shares at avg. $0.77$1K
SST
System1, Inc.
Jan 15, 2025
Tax Payment(F)
Direct
11.3K shares at avg. $0.62$7K
SST
System1, Inc.
Oct 28, 2024
Tax Payment(F)
Direct
1.3K shares at avg. $1.05$1K
SST
System1, Inc.
Oct 15, 2024
Tax Payment(F)
Direct
395 shares at avg. $1.12$442.4

		Type	Shares	Price		Ownership
Jul 15, 2026	SST System1, Inc.	Tax Payment(F)	7,058	$2.60	$18,351	Direct
Apr 15, 2026	SST System1, Inc.	Tax Payment(F)	341	$2.26	$771	Direct
Jan 28, 2026	SST System1, Inc.	Tax Payment(F)	211	$4.18	$882	Direct
Jan 15, 2026	SST System1, Inc.	Tax Payment(F)	377	$4.40	$1,659	Direct
Oct 28, 2025	SST System1, Inc.	Tax Payment(F)	158	$6.18	$976	Direct
Oct 15, 2025	SST System1, Inc.	Tax Payment(F)	282	$7.94	$2,239	Direct
Jul 29, 2025	SST System1, Inc.	Award(A)	40,000	-	-	Direct
Jul 28, 2025	SST System1, Inc.	Tax Payment(F)	135	$7.51	$1,014	Direct
Jul 15, 2025	SST System1, Inc.	Tax Payment(F)	240	$6.33	$1,519	Direct
Apr 28, 2025	SST System1, Inc.	Tax Payment(F)	1,342	$0.41	$550	Direct
Apr 15, 2025	SST System1, Inc.	Tax Payment(F)	2,398	$0.31	$743	Direct
Jan 28, 2025	SST System1, Inc.	Tax Payment(F)	1,541	$0.77	$1,187	Direct
Jan 15, 2025	SST System1, Inc.	Tax Payment(F)	11,301	$0.62	$7,007	Direct
Oct 28, 2024	SST System1, Inc.	Tax Payment(F)	1,338	$1.05	$1,405	Direct
Oct 15, 2024	SST System1, Inc.	Tax Payment(F)	395	$1.12	$442	Direct

1-15 of 15 transactions

About Sestanovich Elizabeth

Sestanovich Elizabeth (SEC CIK 0001907093) files insider reports with the SEC as Chief People Officer of System1, Inc. (SST).

Signal8 holds 14 ownership filings by Sestanovich Elizabeth, all Form 4s, filed between Oct 16, 2024 and Jul 17, 2026. Those filings report 15 transactions, from Oct 15, 2024 to Jul 15, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Sestanovich Elizabeth's filings is in LOS ANGELES, CA.

Recent filings by Sestanovich Elizabeth

Jul 15, 2026: Tax withholding of SST shares (Form 4, code F).
Apr 15, 2026: Tax withholding of SST shares (Form 4, code F).
Jan 28, 2026: Tax withholding of SST shares (Form 4, code F).
Jan 15, 2026: Tax withholding of SST shares (Form 4, code F).
Oct 28, 2025: Tax withholding of SST shares (Form 4, code F).

Other insiders filing for System1, Inc. (SST)

Coppola Brian, Chief Ad Operations Officer
Kidambi Tridivesh, Chief Financial Officer
Weinrot Daniel J, General Counsel & Secretary
CEE Holdings Trust, 10% Owner
MARTIRE FRANK R, Director
Caswell Ryan R., Director

How to read Form 4 transaction codes