Sung Yoon

CIK: 0002042355

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (5.6%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)4 (22.2%)

Compensation grants

Other (G, F, J, C, D, …)13 (72.2%)

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

Companies & Roles (1)

KEYS

Keysight Technologies, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (18 total)

KEYS
Keysight Technologies, Inc.
Dec 30, 2025
Gift(G)
Direct
500 shares-
KEYS
Keysight Technologies, Inc.
Dec 30, 2025
Sale(S)
Direct
889 shares at avg. $206.66$184K
KEYS
Keysight Technologies, Inc.
Dec 11, 2025
Tax Payment(F)
Direct
152 shares at avg. $201.40$31K
KEYS
Keysight Technologies, Inc.
Nov 20, 2025
Tax Payment(F)
Direct
185 shares at avg. $169.67$31K
KEYS
Keysight Technologies, Inc.
Nov 19, 2025
Tax Payment(F)
Direct
24 shares at avg. $174.61$4K
KEYS
Keysight Technologies, Inc.
Nov 19, 2025
Award(A)
Direct
507 shares-
KEYS
Keysight Technologies, Inc.
Nov 19, 2025
Award(A)
Direct
6.4K shares-
KEYS
Keysight Technologies, Inc.
Nov 17, 2025
Tax Payment(F)
Direct
38 shares at avg. $175.51$7K
KEYS
Keysight Technologies, Inc.
Nov 14, 2025
Tax Payment(F)
Direct
37 shares at avg. $179.06$7K
KEYS
Keysight Technologies, Inc.
Nov 14, 2025
Tax Payment(F)
Direct
65 shares at avg. $179.06$12K
KEYS
Keysight Technologies, Inc.
Dec 10, 2024
Tax Payment(F)
Direct
81 shares at avg. $172.26$14K
KEYS
Keysight Technologies, Inc.
Nov 24, 2024
Tax Payment(F)
Direct
46 shares at avg. $170.28$8K
KEYS
Keysight Technologies, Inc.
Nov 20, 2024
Tax Payment(F)
Direct
28 shares at avg. $165.48$5K
KEYS
Keysight Technologies, Inc.
Nov 20, 2024
Award(A)
Direct
3.4K shares-
KEYS
Keysight Technologies, Inc.
Nov 20, 2024
Award(A)
Direct
584 shares-
KEYS
Keysight Technologies, Inc.
Nov 17, 2024
Tax Payment(F)
Direct
38 shares at avg. $149.37$6K
KEYS
Keysight Technologies, Inc.
Nov 16, 2024
Tax Payment(F)
Direct
37 shares at avg. $149.37$6K
KEYS
Keysight Technologies, Inc.
Nov 15, 2024
Tax Payment(F)
Direct
65 shares at avg. $149.37$10K

		Type	Shares	Price		Ownership
Dec 30, 2025	KEYS Keysight Technologies, Inc.	Gift(G)	500	-	$0	Direct
Dec 30, 2025	KEYS Keysight Technologies, Inc.	Sale(S)	889	$206.66	$183,678	Direct
Dec 11, 2025	KEYS Keysight Technologies, Inc.	Tax Payment(F)	152	$201.40	$30,613	Direct
Nov 20, 2025	KEYS Keysight Technologies, Inc.	Tax Payment(F)	185	$169.67	$31,389	Direct
Nov 19, 2025	KEYS Keysight Technologies, Inc.	Tax Payment(F)	24	$174.61	$4,191	Direct
Nov 19, 2025	KEYS Keysight Technologies, Inc.	Award(A)	507	-	-	Direct
Nov 19, 2025	KEYS Keysight Technologies, Inc.	Award(A)	6,429	-	-	Direct
Nov 17, 2025	KEYS Keysight Technologies, Inc.	Tax Payment(F)	38	$175.51	$6,669	Direct
Nov 14, 2025	KEYS Keysight Technologies, Inc.	Tax Payment(F)	37	$179.06	$6,625	Direct
Nov 14, 2025	KEYS Keysight Technologies, Inc.	Tax Payment(F)	65	$179.06	$11,639	Direct
Dec 10, 2024	KEYS Keysight Technologies, Inc.	Tax Payment(F)	81	$172.26	$13,953	Direct
Nov 24, 2024	KEYS Keysight Technologies, Inc.	Tax Payment(F)	46	$170.28	$7,833	Direct
Nov 20, 2024	KEYS Keysight Technologies, Inc.	Tax Payment(F)	28	$165.48	$4,633	Direct
Nov 20, 2024	KEYS Keysight Technologies, Inc.	Award(A)	3,432	-	$0	Direct
Nov 20, 2024	KEYS Keysight Technologies, Inc.	Award(A)	584	-	$0	Direct
Nov 17, 2024	KEYS Keysight Technologies, Inc.	Tax Payment(F)	38	$149.37	$5,676	Direct
Nov 16, 2024	KEYS Keysight Technologies, Inc.	Tax Payment(F)	37	$149.37	$5,527	Direct
Nov 15, 2024	KEYS Keysight Technologies, Inc.	Tax Payment(F)	65	$149.37	$9,709	Direct

1-18 of 18 transactions

About YOON SUNG

YOON SUNG (SEC CIK 0002042355) files insider reports with the SEC as SVP of Keysight Technologies, Inc. (KEYS).

Signal8 holds 9 ownership filings by YOON SUNG (1 Form 3, 8 Form 4), filed between Nov 8, 2024 and Jan 2, 2026. Those filings report 18 transactions, from Nov 15, 2024 to Dec 30, 2025. Signal8's Form 4 history starts in Sep 2024.

The business address on YOON SUNG's filings is in SANTA ROSA, CA.

Recent filings by YOON SUNG

Dec 30, 2025: Gift of KEYS shares (Form 4, code G).
Dec 30, 2025: Open-market sale of KEYS shares (Form 4, code S).
Dec 11, 2025: Tax withholding of KEYS shares (Form 4, code F).
Nov 20, 2025: Tax withholding of KEYS shares (Form 4, code F).
Nov 19, 2025: Tax withholding of KEYS shares (Form 4, code F).

Other insiders filing for Keysight Technologies, Inc. (KEYS)

Li Jeffrey K, SVP and Secretary
JUSKIE JO ANN, SVP
Dhanasekaran Satish, President and CEO
POOLE LISA M., VP and Controller
Dougherty Neil, EVP and CFO
Estrada Ingrid A, SVP

How to read Form 4 transaction codes