InsiderTrades

Goeckeler David

SEC CIK 1713941 · EDGAR

Buying vs selling by month open-market trades, last 25 months, all 3 companies
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
SNDKSandiskCOB, CEO, Dir 416.7K — $104.97M 192025-02-212026-09-17
ADPAutomatic Data ProcessingDir 6,662 — — 52022-04-062025-11-12
WDCWestern DigitalCEO, Dir 812.3K — $10.72M 362021-08-272024-11-27

Most active insiders at SNDK, 12 months

#InsiderTitleBoughtSold
1 Goeckeler DavidCOB, CEO, Dir —$104.97M
2 Ilkbahar AlperEVP, CTO —$11.40M
3 Shek BernardCLO, Secty —$7.99M
4 Pokorny MichaelVP, CAO —$3.49M
5 Suzuki MiyukiDir —$2.20M
6 Visoso Luis FelipeEVP, Chief Financial Office —$1.57M
7 Sayiner NecipDir —$1.12M
8 Cassidy Richard B. IIDir ——
9 Bradley Alexander R.Dir ——
10 Shook EllynDir ——

Transactions 60

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
T 2026-09-21 18:03 2026-09-17 SNDK Sandisk Goeckeler David COB, CEO, Dir A - Grant $0.00 +3,296 416.7K +0.8% $0
MT 2026-09-21 18:03 2026-09-17 SNDK Sandisk Goeckeler David COB, CEO, Dir S - Sale $1,574.21 -33.8K 382.9K -8% -$53.27M
MT 2026-09-16 19:41 2026-09-14 SNDK Sandisk Goeckeler David COB, CEO, Dir S - Sale $1,527.87 -33.8K 413.4K -8% -$51.70M
2026-09-08 20:48 2026-09-03 SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $1,554.99 -10.5K 447.2K -2% -$16.39M
2026-08-27 18:04 2026-08-25 SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $1,480.77 -49.8K 457.8K -10% -$73.72M
M 2026-08-24 17:42 2026-08-20+ SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $1,598.61 -2,333 507.6K -0.5% -$3.73M
2026-05-27 17:15 2026-05-25 SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $1,478.69 -1,569 509.9K -0.3% -$2.32M
M 2026-05-22 18:47 2026-05-20+ SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $1,458.83 -2,331 511.5K -0.5% -$3.40M
2026-02-27 2026-02-25 SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $632.38 -1,569 513.8K -0.3% -$992.2K
M 2026-02-24 2026-02-20+ SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $649.97 -2,332 515.4K -0.5% -$1.52M
2025-11-26 2025-11-25 SNDK Sandisk Goeckeler David CEO, Dir F - Tax $220.50 -1,569 517.7K -0.3% -$346.0K
M 2025-11-24 2025-11-20+ SNDK Sandisk Goeckeler David CEO, Dir F - Tax $197.87 -2,331 519.3K -0.4% -$461.2K
2025-11-14 2025-11-12 ADP Automatic Data Processing Goeckeler David Dir A - Grant $0.00 +1,453 6,662 +28% $0
2025-09-04 2025-09-03 SNDK Sandisk Goeckeler David COB, CEO, Dir A - Grant $0.00 +85.0K 521.6K +19% $0
M 2025-08-27 2025-08-25+ SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $47.42 -2,549 437.6K -0.6% -$120.9K
M 2025-08-22 2025-08-20+ SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $44.52 -39.1K 439.1K -8% -$1.74M
M 2025-05-28 2025-05-25+ SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $37.63 -2,548 478.3K -0.5% -$95.9K
2025-05-22 2025-05-20 SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $40.18 -1,299 480.8K -0.3% -$52.2K
2025-03-14 2025-03-12 SNDK Sandisk Goeckeler David COB, CEO, Dir F - Tax $50.44 -3,847 482.1K -0.8% -$194.0K
M 2025-02-25 2025-02-21 SNDK Sandisk Goeckeler David CEO, Dir A - Grant $0.00 +307.6K 270.8K New $0
2024-12-02 2024-11-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $71.50 -2,939 812.3K -0.4% -$210.1K
2024-11-26 2024-11-25 WDC Western Digital Goeckeler David CEO, Dir F - Tax $69.43 -3,632 815.2K -0.4% -$252.2K
2024-11-22 2024-11-20 WDC Western Digital Goeckeler David CEO, Dir F - Tax $63.84 -2,756 818.9K -0.3% -$175.9K
2024-11-07 2024-11-06 ADP Automatic Data Processing Goeckeler David Dir A - Grant $0.00 +1,179 5,209 +29% $0
2024-10-28 2024-10-25 WDC Western Digital Goeckeler David CEO, Dir S - Sale $72.59 -75.0K 821.6K -8% -$5.44M
2024-09-27 2024-09-26 WDC Western Digital Goeckeler David CEO, Dir S - Sale $70.32 -75.0K 896.6K -8% -$5.27M
2024-09-09 2024-09-06 WDC Western Digital Goeckeler David CEO, Dir G - Gift $0.00 -2,000 971.6K -0.2% $0
2024-09-04 2024-09-03 WDC Western Digital Goeckeler David CEO, Dir F - Tax $63.06 -15.8K 973.6K -2% -$994.8K
M 2024-08-27 2024-08-25+ WDC Western Digital Goeckeler David CEO, Dir F - Tax $63.12 -105.7K 989.4K -10% -$6.67M
M 2024-08-22 2024-08-21 WDC Western Digital Goeckeler David CEO, Dir A - Grant $0.00 +269.3K 1.10M +33% $0
2024-08-22 2024-08-20 WDC Western Digital Goeckeler David CEO, Dir F - Tax $64.42 -3,900 825.8K -0.5% -$251.2K
2024-06-17 2024-06-15 WDC Western Digital Goeckeler David CEO, Dir F - Tax $78.12 -34.7K 829.7K -4% -$2.71M
2024-05-28 2024-05-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $74.81 -2,940 864.5K -0.3% -$219.9K
2024-05-22 2024-05-20 WDC Western Digital Goeckeler David CEO, Dir F - Tax $73.05 -3,421 867.4K -0.4% -$249.9K
2024-02-29 2024-02-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $57.48 -2,050 870.8K -0.2% -$117.8K
2024-02-22 2024-02-20 WDC Western Digital Goeckeler David CEO, Dir F - Tax $54.13 -2,722 872.9K -0.3% -$147.3K
2023-11-28 2023-11-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $47.21 -2,940 875.6K -0.3% -$138.8K
2023-11-21 2023-11-20 WDC Western Digital Goeckeler David CEO, Dir F - Tax $47.35 -3,900 878.5K -0.4% -$184.7K
2023-11-09 2023-11-08 ADP Automatic Data Processing Goeckeler David Dir A - Grant $0.00 +1,574 4,030 +64% $0
2023-09-06 2023-09-03 WDC Western Digital Goeckeler David CEO, Dir F - Tax $45.96 -61.2K 882.4K -6% -$2.81M
M 2023-08-29 2023-08-25+ WDC Western Digital Goeckeler David CEO, Dir F - Tax $39.49 -18.5K 943.7K -2% -$732.2K
2023-08-29 2023-08-25 WDC Western Digital Goeckeler David CEO, Dir A - Grant $0.00 +151.9K 946.6K +19% $0
2023-08-23 2023-08-22 WDC Western Digital Goeckeler David CEO, Dir A - Grant $0.00 +91.6K 810.3K +13% $0
A 2023-06-23 2023-05-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $39.71 -2,940 733.5K -0.4% -$116.7K
2023-06-16 2023-06-15 WDC Western Digital Goeckeler David CEO, Dir F - Tax $41.08 -14.9K 719.5K -2% -$611.6K
2023-05-30 2023-05-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $39.71 -2,050 734.4K -0.3% -$81.4K
D 2023-03-10 2023-03-08 WDC Western Digital Goeckeler David CEO, Dir M - OptEx $0.00 +5,109 950.4K +0.5% $0
D 2023-03-10 2023-03-08 WDC Western Digital Goeckeler David CEO, Dir F - Tax $37.90 -213.9K 736.5K -23% -$8.11M
2023-03-01 2023-02-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $38.51 -2,048 945.2K -0.2% -$78.9K
2022-11-29 2022-11-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $37.34 -2,940 947.3K -0.3% -$109.8K
2022-11-10 2022-11-09 ADP Automatic Data Processing Goeckeler David Dir A - Grant $0.00 +1,435 2,456 +141% $0
2022-09-06 2022-09-03 WDC Western Digital Goeckeler David CEO, Dir F - Tax $41.65 -15.8K 950.2K -2% -$657.1K
2022-08-30 2022-08-27 WDC Western Digital Goeckeler David CEO, Dir F - Tax $45.49 -11.8K 966.0K -1% -$535.0K
2022-08-26 2022-08-25 WDC Western Digital Goeckeler David CEO, Dir A - Grant $0.00 +125.9K 977.8K +15% $0
DM 2022-06-17 2022-06-15 WDC Western Digital Goeckeler David CEO, Dir A - Grant $0.00 +532.6K 851.9K +167% $0
2022-04-07 2022-04-06 ADP Automatic Data Processing Goeckeler David Dir A - Grant $0.00 +1,021 1,021 New $0
D 2022-03-10 2022-03-09 WDC Western Digital Goeckeler David CEO, Dir M - OptEx $0.00 +1,246 369.1K +0.3% $0
D 2022-03-10 2022-03-09 WDC Western Digital Goeckeler David CEO, Dir F - Tax $47.77 -49.8K 319.3K -13% -$2.38M
2021-09-07 2021-09-03 WDC Western Digital Goeckeler David CEO, Dir F - Tax $61.41 -15.8K 367.8K -4% -$968.9K
2021-08-31 2021-08-27 WDC Western Digital Goeckeler David CEO, Dir A - Grant $0.00 +94.9K 383.6K +33% $0

Purchase Sale Sale after option exercise All abbreviations