David Goeckeler

CIK: 0001713941

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)30 (47.6%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)7 (11.1%)

Compensation grants

Other (G, F, J, C, D, …)26 (41.3%)

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

Companies & Roles (3)

SNDK

Sandisk Corp

DirectorOfficer

ADP

AUTOMATIC DATA PROCESSING INC

Director

WDC

WESTERN DIGITAL CORP

DirectorOfficer

Discretionary Trading P&L

Holdings

Transaction History (63 total)

SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
2.9K shares at avg. $1578.34$4.5M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
910 shares at avg. $1570.04$1.4M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
1.5K shares at avg. $1580.25$2.3M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
165 shares at avg. $1587.00$262K
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
306 shares at avg. $1573.15$481K
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
40 shares at avg. $1567.26$63K
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
2.8K shares at avg. $1575.58$4.4M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
640 shares at avg. $1579.40$1.0M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
1.1K shares at avg. $1583.80$1.7M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
1.5K shares at avg. $1585.85$2.4M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
4.1K shares at avg. $1576.82$6.5M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
1.2K shares at avg. $1572.60$1.8M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
2.6K shares at avg. $1574.57$4.1M
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
9.6K shares at avg. $1569.00$15.1M
SNDK
Sandisk Corp
Sep 17, 2026
Award(A)
Direct
3.3K shares-
SNDK
Sandisk Corp
Sep 17, 2026
Sale(S)
Direct
4.6K shares at avg. $1571.21$7.2M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
14.4K shares at avg. $1522.59$21.9M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
181 shares at avg. $1522.87$276K
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
700 shares at avg. $1535.12$1.1M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
3.1K shares at avg. $1524.27$4.7M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
1.7K shares at avg. $1535.96$2.6M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
2.3K shares at avg. $1526.45$3.5M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
864 shares at avg. $1540.78$1.3M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
4.1K shares at avg. $1528.45$6.2M
SNDK
Sandisk Corp
Sep 14, 2026
Sale(S)
Direct
359 shares at avg. $1529.36$549K

		Type	Shares	Price		Ownership
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	2,876	$1578.34	$4,539,306	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	910	$1570.04	$1,428,737	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	1,480	$1580.25	$2,338,765	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	165	$1587.00	$261,855	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	306	$1573.15	$481,385	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	40	$1567.26	$62,690	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	2,778	$1575.58	$4,376,969	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	640	$1579.40	$1,010,819	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	1,080	$1583.80	$1,710,503	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	1,520	$1585.85	$2,410,490	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	4,139	$1576.82	$6,526,460	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	1,157	$1572.60	$1,819,501	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	2,588	$1574.57	$4,074,980	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	9,604	$1569.00	$15,068,664	Direct
Sep 17, 2026	SNDK Sandisk Corp	Award(A)	3,296	-	$0	Direct
Sep 17, 2026	SNDK Sandisk Corp	Sale(S)	4,558	$1571.21	$7,161,579	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	14,364	$1522.59	$21,870,445	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	181	$1522.87	$275,639	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	700	$1535.12	$1,074,582	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	3,075	$1524.27	$4,687,123	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	1,695	$1535.96	$2,603,457	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	2,280	$1526.45	$3,480,298	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	864	$1540.78	$1,331,234	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	4,080	$1528.45	$6,236,061	Direct
Sep 14, 2026	SNDK Sandisk Corp	Sale(S)	359	$1529.36	$549,040	Direct

1-25 of 63 transactions

About Goeckeler David

Goeckeler David (SEC CIK 0001713941) files insider reports with the SEC as Chairman & CEO of Sandisk Corp (SNDK), Director of AUTOMATIC DATA PROCESSING INC (ADP) and Chief Executive Officer of WESTERN DIGITAL CORP (WDC).

Signal8 holds 29 ownership filings by Goeckeler David (1 Form 3, 28 Form 4), filed between Sep 4, 2024 and Sep 21, 2026. Those filings report 63 transactions, from Sep 3, 2024 to Sep 17, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Goeckeler David's filings is in MILPITAS, CA.

Recent filings by Goeckeler David

Sep 17, 2026: Open-market sales of SNDK shares (14 lines, Form 4, code S).
Sep 17, 2026: Grant or award of SNDK shares (Form 4, code A).
Sep 17, 2026: Open-market sale of SNDK shares (Form 4, code S).
Sep 14, 2026: Open-market sales of SNDK shares (9 lines, Form 4, code S).

Other insiders filing for Sandisk Corp (SNDK)

Shek Bernard, Chief Legal Officer and Secty
Pokorny Michael, VP, Chief Accounting Officer
Visoso Luis Felipe, EVP & CFO
Ilkbahar Alper, EVP & Chief Technology Officer
Caulfield Thomas, Director
Sayiner Necip, Director

How to read Form 4 transaction codes