WESTERN DIGITAL CORP
WDC · Computer Storage Devices · 344.7M shares · +2%/yr ↑ dilution · EDGAR filings ↗
Reference price $528.07 · est. market cap ~$182.0B — last insider sale, 2026-06-09 (estimated from the dated SEC Form 4 price × shares outstanding — not a live quote)
Grade
B74Storage/HDD maker enjoying a strong demand upcycle (AI/nearline) with high margins and returns; cyclicality and the reported growth artifact temper it.
Strengths
- Strong profitability and returns this cycle — operating margin 24.5% (88th), ROE 35.6% (86th), ROA 13.5% (85th)
- Solid free cash flow — FCF $1.28B (88th)
- Manageable leverage — D/E 0.47
Risks
- Reported growth is an artifact — revenue +315% / net income +263% reflect the SanDisk separation/normalization, not organic
- Storage cyclicality — margins swing widely with the HDD/memory cycle
- Thin liquidity — current ratio 1.08 (17th), quick ratio 0.84
Notable findings
- Fund exitedNotable fund(s) exited this quarter: VANGUARD GROUP INC
- Exec changeRecent 8-K item 5.02 8-K ↗
- Strong balance sheetStrong balance sheet — $2.1B cash & investments
- Insider sellingInsider selling — 143 open-market sale(s) by 7 insider(s) (cluster of 7 insiders, ~$49M, last 6mo) Form 4 ↗
- Notable holderHeld by 6 notable fund(s): FMR LLC, STATE STREET CORP, GOLDMAN SACHS GROUP INC +3 more (as of 2026-03-31)
- China exposuretrade restrictions, such as export controls, export bans, import restrictions, embargoes, sanctions, license and certification requirements (including encryption and other technology), trade wars, tar
- AccumulatingInstitutional holders rose 18→22 QoQ (2025-12-31→2026-03-31)
Quarterly revenue
Last 4 quarters · from SEC filings.
Key metrics
Gross margin
38.8%
Operating margin
24.5%
Net margin
19.8%
Return on equity
35.6%
Return on assets
13.5%
ROIC
23.7%
Revenue growth (QoQ)
10.6%
Debt / equity
0.5×
Net debt / EBITDA
0.1×
Current ratio
1.1×
Free cash flow
$1.3B
EBITDA
$2.8B
Tangible book value
$992M
Cash & investments
$2.1B
Stock comp / revenue
2.8%
Insider transactions · last 18 months
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| 2026-06-20 | Davis Brian Scott | Option exercise | 7 | — |
| 2026-06-20 | Tan Irving | Option exercise | 52 | — |
| 2026-06-20 | Davis Brian Scott | Tax withheld | 961 | $746.23 |
| 2026-06-20 | Tan Irving | Tax withheld | 1.1K | $746.23 |
| 2026-06-17 | Shihab Ahmed Mohammed | Tax withheld | 5.1K | $712.13 |
| 2026-06-17 | Shihab Ahmed Mohammed | Option exercise | 51 | — |
| 2026-06-09 | Cole Martin I | Sell | 16 | $534.90 |
| 2026-06-09 | Cole Martin I | Sell | 112 | $536.27 |
| 2026-06-09 | Cole Martin I | Sell | 71 | $537.73 |
| 2026-06-09 | Cole Martin I | Sell | 57 | $538.81 |
| 2026-06-09 | Cole Martin I | Sell | 32 | $539.82 |
| 2026-06-09 | Cole Martin I | Sell | 16 | $540.96 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $542.79 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $543.92 |
| 2026-06-09 | Cole Martin I | Sell | 16 | $544.95 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $484.28 |
| 2026-06-09 | Cole Martin I | Sell | 16 | $485.54 |
| 2026-06-09 | Cole Martin I | Sell | 16 | $488.06 |
| 2026-06-09 | Cole Martin I | Sell | 38 | $491.06 |
| 2026-06-09 | Cole Martin I | Sell | 30 | $492.38 |
| 2026-06-09 | Cole Martin I | Sell | 44 | $493.64 |
| 2026-06-09 | Cole Martin I | Sell | 32 | $494.62 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $497.47 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $498.95 |
| 2026-06-09 | Cole Martin I | Sell | 16 | $499.69 |
| 2026-06-09 | Cole Martin I | Sell | 64 | $501.72 |
| 2026-06-09 | Cole Martin I | Sell | 128 | $502.87 |
| 2026-06-09 | Cole Martin I | Sell | 80 | $503.80 |
| 2026-06-09 | Cole Martin I | Sell | 96 | $505.51 |
| 2026-06-09 | Cole Martin I | Sell | 96 | $507.94 |
| 2026-06-09 | Cole Martin I | Sell | 32 | $509.16 |
| 2026-06-09 | Cole Martin I | Sell | 326 | $510.61 |
| 2026-06-09 | Cole Martin I | Sell | 310 | $511.67 |
| 2026-06-09 | Cole Martin I | Sell | 316 | $513.14 |
| 2026-06-09 | Cole Martin I | Sell | 296 | $514.09 |
| 2026-06-09 | Cole Martin I | Sell | 392 | $515.40 |
| 2026-06-09 | Cole Martin I | Sell | 112 | $516.72 |
| 2026-06-09 | Cole Martin I | Sell | 216 | $517.59 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $519.25 |
| 2026-06-09 | Cole Martin I | Sell | 160 | $521.14 |
| 2026-06-09 | Cole Martin I | Sell | 32 | $523.23 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $524.72 |
| 2026-06-09 | Cole Martin I | Sell | 16 | $525.56 |
| 2026-06-09 | Cole Martin I | Sell | 128 | $527.22 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $486.87 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $528.07 |
| 2026-06-09 | Cole Martin I | Sell | 64 | $530.27 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $531.62 |
| 2026-06-09 | Cole Martin I | Sell | 96 | $533.01 |
| 2026-06-09 | Cole Martin I | Sell | 48 | $533.97 |
| 2026-06-05 | Tregillis Cynthia L | Sell | 432 | $545.60 |
| 2026-06-03 | Davis Brian Scott | Tax withheld | 881 | $594.11 |
| 2026-06-03 | Gubbi Vidyadhara K | Tax withheld | 1.8K | $594.11 |
| 2026-06-03 | Gubbi Vidyadhara K | Option exercise | 13 | — |
| 2026-06-03 | Tregillis Cynthia L | Tax withheld | 699 | $594.11 |
| 2026-06-03 | Tregillis Cynthia L | Option exercise | 6 | — |
| 2026-06-03 | Davis Brian Scott | Option exercise | 6 | — |
| 2026-06-01 | Gubbi Vidyadhara K | Sell | 2.5K | $556.24 |
| 2026-05-28 | KIDDOO BRUCE E | Sell | 750 | $528.52 |
| 2026-05-27 | Tregillis Cynthia L | Sell | 214 | $539.63 |
| 2026-05-26 | Das Manuvir | Grant | 772 | — |
| 2026-05-25 | Tan Irving | Option exercise | 30 | — |
| 2026-05-25 | Tregillis Cynthia L | Option exercise | 7 | — |
| 2026-05-25 | Tregillis Cynthia L | Tax withheld | 771 | $484.28 |
| 2026-05-25 | Tan Irving | Tax withheld | 479 | $484.28 |
| 2026-05-25 | Gubbi Vidyadhara K | Option exercise | 8 | — |
| 2026-05-25 | Gubbi Vidyadhara K | Tax withheld | 1.1K | $484.28 |
| 2026-05-25 | Davis Brian Scott | Option exercise | 7 | — |
| 2026-05-25 | Davis Brian Scott | Tax withheld | 971 | $484.28 |
| 2026-05-22 | Tregillis Cynthia L | Sell | 308 | $488.61 |
| 2026-05-21 | Davis Brian Scott | Tax withheld | 593 | $486.46 |
| 2026-05-21 | Davis Brian Scott | Option exercise | 4 | — |
| 2026-05-21 | Tregillis Cynthia L | Option exercise | 10 | — |
| 2026-05-21 | Tregillis Cynthia L | Tax withheld | 1.1K | $486.46 |
| 2026-05-21 | Tregillis Cynthia L | Sell | 106 | $458.87 |
| 2026-05-21 | Gubbi Vidyadhara K | Tax withheld | 693 | $486.46 |
| 2026-05-21 | Gubbi Vidyadhara K | Option exercise | 5 | — |
| 2026-05-21 | Tan Irving | Tax withheld | 587 | $486.46 |
| 2026-05-21 | Tan Irving | Option exercise | 23 | — |
| 2026-05-20 | Tregillis Cynthia L | Option exercise | 3 | — |
| 2026-05-20 | Tregillis Cynthia L | Tax withheld | 379 | $459.62 |
| 2026-05-20 | Tan Irving | Option exercise | 12 | — |
| 2026-05-20 | Tan Irving | Tax withheld | 145 | $459.62 |
| 2026-05-20 | Sennesael Kris | Option exercise | 141 | — |
| 2026-05-20 | Sennesael Kris | Tax withheld | 18K | $459.62 |
| 2026-05-20 | Gubbi Vidyadhara K | Option exercise | 4 | — |
| 2026-05-20 | Gubbi Vidyadhara K | Tax withheld | 593 | $459.62 |
| 2026-05-20 | Davis Brian Scott | Option exercise | 5 | — |
| 2026-05-20 | Davis Brian Scott | Tax withheld | 716 | $459.62 |
| 2026-05-15 | KIDDOO BRUCE E | Gift | 100 | — |
| 2026-05-11 | Davis Brian Scott | Sell | 386 | $506.92 |
| 2026-05-11 | Davis Brian Scott | Sell | 1.7K | $489.78 |
| 2026-05-11 | Davis Brian Scott | Sell | 107 | $490.49 |
| 2026-05-11 | Davis Brian Scott | Sell | 120 | $491.13 |
| 2026-05-11 | Davis Brian Scott | Sell | 160 | $493.33 |
| 2026-05-11 | Davis Brian Scott | Sell | 120 | $494.40 |
| 2026-05-11 | Davis Brian Scott | Sell | 40 | $495.97 |
| 2026-05-11 | Davis Brian Scott | Sell | 160 | $497.18 |
| 2026-05-11 | Davis Brian Scott | Sell | 401 | $499.02 |
| 2026-05-11 | Davis Brian Scott | Sell | 996 | $500.18 |
| 2026-05-11 | Davis Brian Scott | Sell | 966 | $501.44 |
| 2026-05-11 | Davis Brian Scott | Sell | 745 | $502.49 |
| 2026-05-11 | Davis Brian Scott | Sell | 876 | $503.57 |
| 2026-05-11 | Davis Brian Scott | Sell | 1.6K | $504.10 |
| 2026-05-11 | Davis Brian Scott | Sell | 562 | $505.25 |
| 2026-05-11 | Davis Brian Scott | Sell | 17 | $507.68 |
| 2026-05-11 | Davis Brian Scott | Sell | 751 | $509.18 |
| 2026-05-11 | Davis Brian Scott | Sell | 301 | $510.00 |
| 2026-05-04 | Gubbi Vidyadhara K | Sell | 4.7K | $443.19 |
| 2026-05-01 | Tan Irving | Sell | 512 | $407.32 |
| 2026-05-01 | Tan Irving | Sell | 584 | $408.23 |
| 2026-05-01 | Tan Irving | Sell | 546 | $409.63 |
| 2026-05-01 | Tan Irving | Sell | 920 | $410.76 |
| 2026-05-01 | Tan Irving | Sell | 680 | $411.87 |
| 2026-05-01 | Tan Irving | Sell | 5.7K | $413.12 |
| 2026-05-01 | Tan Irving | Sell | 7.4K | $413.92 |
| 2026-05-01 | Tan Irving | Sell | 435 | $415.02 |
| 2026-05-01 | Tan Irving | Sell | 3.3K | $406.52 |
| 2026-04-21 | Tregillis Cynthia L | Sell | 363 | $377.09 |
| 2026-04-20 | Tregillis Cynthia L | Tax withheld | 1.3K | $374.11 |
| 2026-04-20 | Tregillis Cynthia L | Option exercise | 12 | — |
| 2026-04-20 | Gubbi Vidyadhara K | Option exercise | 34 | — |
| 2026-04-20 | Gubbi Vidyadhara K | Tax withheld | 4.6K | $374.11 |
| 2026-03-20 | Tan Irving | Option exercise | 49 | — |
| 2026-03-20 | Tan Irving | Tax withheld | 1.0K | $293.10 |
| 2026-03-20 | Davis Brian Scott | Option exercise | 7 | — |
| 2026-03-20 | Davis Brian Scott | Tax withheld | 961 | $293.10 |
| 2026-03-17 | Shihab Ahmed Mohammed | Option exercise | 196 | — |
| 2026-03-17 | Shihab Ahmed Mohammed | Tax withheld | 21K | $313.81 |
| 2026-03-06 | Gubbi Vidyadhara K | Sell | 8.5K | $255.32 |
| 2026-03-04 | Gubbi Vidyadhara K | Sell | 3.0K | $269.57 |
| 2026-03-04 | Tregillis Cynthia L | Sell | 777 | $257.91 |
| 2026-03-04 | Tregillis Cynthia L | Sell | 8.5K | $269.22 |
| 2026-03-04 | Gubbi Vidyadhara K | Sell | 7.2K | $270.62 |
| 2026-03-03 | Gubbi Vidyadhara K | Option exercise | 47 | — |
| 2026-03-03 | Gubbi Vidyadhara K | Tax withheld | 7.1K | $250.61 |
| 2026-03-03 | Tregillis Cynthia L | Option exercise | 23 | — |
| 2026-03-03 | Tan Irving | Tax withheld | 3.5K | $250.61 |
| 2026-03-03 | Davis Brian Scott | Option exercise | 23 | — |
| 2026-03-03 | Tregillis Cynthia L | Tax withheld | 2.8K | $250.61 |
| 2026-03-03 | Davis Brian Scott | Tax withheld | 3.5K | $250.61 |
| 2026-03-03 | Tan Irving | Option exercise | 92 | — |
| 2026-03-02 | Cole Martin I | Sell | 1.1K | $272.56 |
| 2026-03-02 | Cole Martin I | Sell | 200 | $273.56 |
| 2026-03-02 | Cole Martin I | Sell | 300 | $274.87 |
| 2026-03-02 | Cole Martin I | Sell | 200 | $276.52 |
| 2026-03-02 | Cole Martin I | Sell | 100 | $277.16 |
| 2026-03-02 | Cole Martin I | Sell | 107 | $278.97 |
| 2026-03-02 | Cole Martin I | Sell | 193 | $280.73 |
| 2026-03-02 | Cole Martin I | Sell | 100 | $281.99 |
| 2026-03-02 | Cole Martin I | Sell | 100 | $263.66 |
| 2026-03-02 | Cole Martin I | Sell | 300 | $265.70 |
| 2026-03-02 | Cole Martin I | Sell | 300 | $267.81 |
| 2026-03-02 | Cole Martin I | Sell | 634 | $268.84 |
| 2026-03-02 | Cole Martin I | Sell | 966 | $269.72 |
| 2026-03-02 | Cole Martin I | Sell | 1.4K | $271.68 |
| 2026-02-26 | Tregillis Cynthia L | Sell | 214 | $286.11 |
| 2026-02-25 | Gubbi Vidyadhara K | Tax withheld | 1.0K | $290.95 |
| 2026-02-25 | Tregillis Cynthia L | Tax withheld | 770 | $290.95 |
| 2026-02-25 | Davis Brian Scott | Option exercise | 6 | — |
| 2026-02-25 | Davis Brian Scott | Tax withheld | 849 | $290.95 |
| 2026-02-25 | Tregillis Cynthia L | Option exercise | 6 | — |
| 2026-02-25 | Tan Irving | Option exercise | 27 | — |
| 2026-02-25 | Tan Irving | Tax withheld | 425 | $290.95 |
| 2026-02-25 | Gubbi Vidyadhara K | Option exercise | 7 | — |
| 2026-02-24 | Tregillis Cynthia L | Sell | 308 | $281.70 |
| 2026-02-23 | Tregillis Cynthia L | Sell | 130 | $283.83 |
| 2026-02-21 | Tregillis Cynthia L | Option exercise | 9 | — |
| 2026-02-21 | Tregillis Cynthia L | Tax withheld | 1.1K | $285.52 |
| 2026-02-21 | Gubbi Vidyadhara K | Option exercise | 4 | — |
| 2026-02-21 | Gubbi Vidyadhara K | Tax withheld | 483 | $285.52 |
| 2026-02-21 | Davis Brian Scott | Option exercise | 4 | — |
| 2026-02-21 | Tan Irving | Option exercise | 21 | — |
| 2026-02-21 | Davis Brian Scott | Tax withheld | 414 | $285.52 |
| 2026-02-21 | Tan Irving | Tax withheld | 523 | $285.52 |
| 2026-02-20 | Gubbi Vidyadhara K | Tax withheld | 437 | $285.52 |
| 2026-02-20 | Tregillis Cynthia L | Option exercise | 3 | — |
| 2026-02-20 | Tregillis Cynthia L | Tax withheld | 244 | $285.52 |
| 2026-02-20 | Tan Irving | Option exercise | 11 | — |
| 2026-02-20 | Tan Irving | Tax withheld | 134 | $285.52 |
| 2026-02-20 | Gubbi Vidyadhara K | Option exercise | 4 | — |
| 2026-02-20 | Davis Brian Scott | Option exercise | 4 | — |
| 2026-02-20 | Davis Brian Scott | Tax withheld | 522 | $285.52 |
| 2026-02-17 | Davis Brian Scott | Sell | 342 | $272.97 |
| 2026-02-17 | Davis Brian Scott | Sell | 600 | $274.09 |
| 2026-02-17 | Davis Brian Scott | Sell | 870 | $275.12 |
| 2026-02-17 | Davis Brian Scott | Sell | 540 | $276.22 |
| 2026-02-17 | Davis Brian Scott | Sell | 2.1K | $277.37 |
| 2026-02-17 | Davis Brian Scott | Sell | 972 | $278.28 |
| 2026-02-17 | Davis Brian Scott | Sell | 406 | $279.53 |
| 2026-02-17 | Davis Brian Scott | Sell | 929 | $280.83 |
| 2026-02-17 | Davis Brian Scott | Sell | 995 | $282.00 |
| 2026-02-17 | Davis Brian Scott | Sell | 902 | $282.66 |
| 2026-02-17 | Davis Brian Scott | Sell | 400 | $283.93 |
| 2026-02-17 | Davis Brian Scott | Sell | 915 | $285.01 |
| 2026-02-12 | KIDDOO BRUCE E | Gift | 910 | — |
| 2026-02-06 | Tregillis Cynthia L | Sell | 6.8K | $270.49 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 2.6K | $256.63 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 4.4K | $257.69 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 7.0K | $258.67 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 4.9K | $259.59 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 6.0K | $260.57 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 3.6K | $261.71 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 2.3K | $262.77 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 2.6K | $264.01 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 2.2K | $264.99 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 916 | $265.92 |
| 2026-02-05 | MASSENGILL MATTHEW E | Sell | 400 | $268.06 |
| 2026-02-02 | Tan Irving | Sell | 1.3K | $243.50 |
| 2026-02-02 | Tan Irving | Sell | 981 | $242.23 |
| 2026-02-02 | Tan Irving | Sell | 800 | $245.00 |
| 2026-02-02 | Tan Irving | Sell | 1.0K | $247.26 |
| 2026-02-02 | Tan Irving | Sell | 1.1K | $248.95 |
| 2026-02-02 | Tan Irving | Sell | 200 | $249.49 |
| 2026-02-02 | Tan Irving | Sell | 1.0K | $252.15 |
| 2026-02-02 | Tan Irving | Sell | 100 | $253.40 |
| 2026-02-02 | Tan Irving | Sell | 100 | $255.00 |
| 2026-02-02 | Tan Irving | Sell | 1.0K | $256.76 |
| 2026-02-02 | Tan Irving | Sell | 1.5K | $257.82 |
| 2026-02-02 | Tan Irving | Sell | 2.1K | $258.65 |
| 2026-02-02 | Tan Irving | Sell | 2.2K | $259.93 |
| 2026-02-02 | Tan Irving | Sell | 2.4K | $260.84 |
| 2026-02-02 | Tan Irving | Sell | 3.6K | $261.84 |
| 2026-02-02 | Tan Irving | Sell | 100 | $262.55 |
| 2026-02-02 | Tan Irving | Sell | 400 | $250.71 |
| 2026-01-21 | Tregillis Cynthia L | Sell | 447 | $229.00 |
| 2026-01-20 | Tregillis Cynthia L | Option exercise | 11 | — |
| 2026-01-20 | Tregillis Cynthia L | Tax withheld | 842 | $222.97 |
| 2025-12-20 | Davis Brian Scott | Option exercise | 6 | — |
| 2025-12-20 | Davis Brian Scott | Tax withheld | 962 | $181.08 |
| 2025-12-20 | Tan Irving | Option exercise | 43 | — |
| 2025-12-20 | Tan Irving | Tax withheld | 967 | $181.08 |
| 2025-12-05 | Gubbi Vidyadhara K | Sell | 3.8K | $167.61 |
| 2025-12-05 | Gubbi Vidyadhara K | Sell | 5.1K | $168.54 |
| 2025-12-04 | Gubbi Vidyadhara K | Sell | 14K | $159.94 |
| 2025-12-04 | Alexy Kimberly | Sell | 2.0K | $160.08 |
| 2025-12-02 | Tregillis Cynthia L | Sell | 2.8K | $160.57 |
| 2025-12-01 | Cole Martin I | Sell | 900 | $161.17 |
| 2025-12-01 | Cole Martin I | Sell | 100 | $157.50 |
| 2025-12-01 | Cole Martin I | Sell | 500 | $158.98 |
| 2025-12-01 | Cole Martin I | Sell | 600 | $159.89 |
| 2025-12-01 | Cole Martin I | Sell | 400 | $162.12 |
| 2025-12-01 | Cole Martin I | Sell | 451 | $163.16 |
| 2025-12-01 | Cole Martin I | Sell | 2.5K | $164.20 |
| 2025-12-01 | Cole Martin I | Sell | 510 | $164.95 |
| 2025-11-25 | Tregillis Cynthia L | Option exercise | 5 | — |
| 2025-11-25 | Tregillis Cynthia L | Tax withheld | 770 | $155.41 |
| 2025-11-25 | Tan Irving | Option exercise | 21 | — |
| 2025-11-25 | Tan Irving | Tax withheld | 374 | $155.41 |
| 2025-11-25 | Oulman Roxanne | Sell | 1.8K | $154.42 |
| 2025-11-25 | Gubbi Vidyadhara K | Option exercise | 6 | — |
| 2025-11-25 | Gubbi Vidyadhara K | Tax withheld | 1.1K | $155.41 |
| 2025-11-25 | Davis Brian Scott | Option exercise | 5 | — |
| 2025-11-25 | Davis Brian Scott | Tax withheld | 971 | $155.41 |
| 2025-11-25 | Alexy Kimberly | Sell | 1.8K | $154.00 |
| 2025-11-21 | Tregillis Cynthia L | Tax withheld | 1.1K | $139.19 |
| 2025-11-21 | Tregillis Cynthia L | Option exercise | 7 | — |
| 2025-11-21 | Tan Irving | Option exercise | 16 | — |
| 2025-11-21 | Tan Irving | Tax withheld | 524 | $139.19 |
| 2025-11-21 | Gubbi Vidyadhara K | Option exercise | 3 | — |
| 2025-11-21 | Gubbi Vidyadhara K | Tax withheld | 693 | $139.19 |
| 2025-11-21 | Davis Brian Scott | Option exercise | 3 | — |
| 2025-11-21 | Davis Brian Scott | Tax withheld | 592 | $139.19 |
| 2025-11-20 | Sennesael Kris | Tax withheld | 19K | $140.23 |
| 2025-11-20 | Gubbi Vidyadhara K | Option exercise | 3 | — |
| 2025-11-20 | Gubbi Vidyadhara K | Tax withheld | 592 | $140.23 |
| 2025-11-20 | Tan Irving | Tax withheld | 104 | $140.23 |
| 2025-11-20 | Tan Irving | Option exercise | 8 | — |
| 2025-11-20 | Feller Brad | Grant | 9.9K | — |
| 2025-11-20 | Sennesael Kris | Option exercise | 99 | — |
| 2025-11-20 | Davis Brian Scott | Option exercise | 3 | — |
| 2025-11-20 | Davis Brian Scott | Tax withheld | 715 | $140.23 |
| 2025-11-20 | Tregillis Cynthia L | Option exercise | 2 | — |
| 2025-11-20 | Tregillis Cynthia L | Tax withheld | 379 | $140.23 |
| 2025-11-20 | STREETER STEPHANIE A | Grant | 1.6K | — |
| 2025-11-20 | MASSENGILL MATTHEW E | Grant | 1.6K | — |
| 2025-11-20 | Oulman Roxanne | Grant | 1.6K | — |
| 2025-11-20 | KIDDOO BRUCE E | Grant | 1.6K | — |
| 2025-11-20 | DOLUCA TUNC | Grant | 1.6K | — |
| 2025-11-20 | Cole Martin I | Grant | 1.9K | — |
| 2025-11-20 | Alexy Kimberly | Grant | 1.6K | — |
| 2025-11-19 | STREETER STEPHANIE A | Option exercise | 16 | — |
| 2025-11-19 | Alexy Kimberly | Option exercise | 9 | — |
| 2025-11-19 | Oulman Roxanne | Option exercise | 10 | — |
| 2025-11-19 | DOLUCA TUNC | Option exercise | 14 | — |
| 2025-11-19 | KIDDOO BRUCE E | Option exercise | 10 | — |
| 2025-11-19 | Cole Martin I | Option exercise | 14 | — |
| 2025-11-05 | Cole Martin I | Sell | 960 | $161.31 |
| 2025-11-05 | Cole Martin I | Sell | 144 | $152.99 |
| 2025-11-05 | Cole Martin I | Sell | 221 | $155.77 |
| 2025-11-05 | Cole Martin I | Sell | 419 | $157.01 |
| 2025-11-05 | Cole Martin I | Sell | 833 | $158.02 |
| 2025-11-05 | Cole Martin I | Sell | 551 | $159.16 |
| 2025-11-05 | Cole Martin I | Sell | 982 | $160.24 |
| 2025-11-05 | Cole Martin I | Sell | 3.3K | $162.18 |
| 2025-11-05 | Cole Martin I | Sell | 1.2K | $163.08 |
| 2025-11-05 | Cole Martin I | Sell | 798 | $164.08 |
| 2025-11-05 | Cole Martin I | Sell | 558 | $164.99 |
| 2025-11-03 | Tan Irving | Sell | 6.0K | $149.02 |
| 2025-11-03 | Tan Irving | Sell | 6.4K | $149.79 |
| 2025-11-03 | Tan Irving | Sell | 700 | $150.90 |
| 2025-11-03 | Tan Irving | Sell | 2.9K | $152.24 |
| 2025-11-03 | Tan Irving | Sell | 2.5K | $153.18 |
| 2025-11-03 | Tan Irving | Sell | 1.5K | $153.93 |
| 2025-10-20 | Tregillis Cynthia L | Option exercise | 8 | — |
| 2025-10-20 | Tregillis Cynthia L | Tax withheld | 1.3K | $121.53 |
| 2025-09-20 | Tan Irving | Tax withheld | 779 | $106.63 |
| 2025-09-20 | Davis Brian Scott | Option exercise | 5 | — |
| 2025-09-20 | Tan Irving | Option exercise | 34 | — |
| 2025-09-20 | Davis Brian Scott | Tax withheld | 961 | $106.63 |
| 2025-09-04 | Gubbi Vidyadhara K | Sell | 11K | $90.29 |
| 2025-08-28 | Zamiska Gene M. | Sell | 353 | $80.90 |
| 2025-08-27 | Gubbi Vidyadhara K | Tax withheld | 408 | $80.67 |
| 2025-08-27 | Zamiska Gene M. | Option exercise | 1 | — |
| 2025-08-27 | Zamiska Gene M. | Tax withheld | 345 | $80.67 |
| 2025-08-27 | Tregillis Cynthia L | Option exercise | 1 | — |
| 2025-08-27 | Tregillis Cynthia L | Tax withheld | 266 | $80.67 |
| 2025-08-27 | Gubbi Vidyadhara K | Option exercise | 1 | — |
| 2025-08-27 | Davis Brian Scott | Option exercise | 1 | — |
| 2025-08-27 | Davis Brian Scott | Tax withheld | 441 | $80.67 |
| 2025-08-26 | Shihab Ahmed Mohammed | Grant | 28K | — |
| 2025-08-26 | Gubbi Vidyadhara K | Grant | 17K | — |
| 2025-08-26 | Tan Irving | Grant | 74K | — |
| 2025-08-26 | Zamiska Gene M. | Sell | 814 | $79.10 |
| 2025-08-26 | Sennesael Kris | Grant | 35K | — |
| 2025-08-26 | Tregillis Cynthia L | Grant | 17K | — |
| 2025-08-26 | Davis Brian Scott | Grant | 13K | — |
| 2025-08-25 | Davis Brian Scott | Option exercise | 3 | — |
| 2025-08-25 | Davis Brian Scott | Tax withheld | 969 | $79.22 |
| 2025-08-25 | Tregillis Cynthia L | Option exercise | 3 | — |
| 2025-08-25 | Tregillis Cynthia L | Tax withheld | 769 | $79.22 |
| 2025-08-25 | Tan Irving | Option exercise | 13 | — |
| 2025-08-25 | Tan Irving | Tax withheld | 247 | $79.22 |
| 2025-08-25 | Zamiska Gene M. | Option exercise | 2 | — |
| 2025-08-25 | Zamiska Gene M. | Tax withheld | 798 | $79.22 |
| 2025-08-25 | Gubbi Vidyadhara K | Option exercise | 3 | — |
| 2025-08-25 | Gubbi Vidyadhara K | Tax withheld | 1.1K | $79.22 |
| 2025-08-22 | Zamiska Gene M. | Sell | 1.8K | $74.78 |
| 2025-08-22 | Tregillis Cynthia L | Sell | 14K | $74.78 |
| 2025-08-21 | Gubbi Vidyadhara K | Tax withheld | 2.8K | $74.66 |
| 2025-08-21 | Zamiska Gene M. | Option exercise | 6 | — |
| 2025-08-21 | Zamiska Gene M. | Tax withheld | 1.8K | $74.66 |
| 2025-08-21 | Zamiska Gene M. | Sell | 3.2K | $75.68 |
| 2025-08-21 | Tregillis Cynthia L | Option exercise | 18 | — |
| 2025-08-21 | Tregillis Cynthia L | Tax withheld | 4.4K | $74.66 |
| 2025-08-21 | Tan Irving | Option exercise | 42 | — |
| 2025-08-21 | Tan Irving | Tax withheld | 1.5K | $74.66 |
| 2025-08-21 | Gubbi Vidyadhara K | Option exercise | 9 | — |
| 2025-08-21 | Davis Brian Scott | Option exercise | 8 | — |
| 2025-08-21 | Davis Brian Scott | Tax withheld | 2.4K | $74.66 |
| 2025-08-20 | Zamiska Gene M. | Option exercise | 9 | — |
| 2025-08-20 | Zamiska Gene M. | Tax withheld | 3.1K | $75.64 |
| 2025-08-20 | Tregillis Cynthia L | Option exercise | 10 | — |
| 2025-08-20 | Tregillis Cynthia L | Tax withheld | 2.6K | $75.64 |
| 2025-08-20 | Tan Irving | Tax withheld | 1.2K | $75.64 |
| 2025-08-20 | Gubbi Vidyadhara K | Option exercise | 11 | — |
| 2025-08-20 | Gubbi Vidyadhara K | Tax withheld | 4.0K | $75.64 |
| 2025-08-20 | Davis Brian Scott | Option exercise | 14 | — |
| 2025-08-20 | Davis Brian Scott | Tax withheld | 4.8K | $75.64 |
| 2025-08-20 | Tan Irving | Option exercise | 101 | — |
| 2025-08-19 | Tan Irving | Sell | 8.6K | $75.90 |
| 2025-08-13 | Gubbi Vidyadhara K | Sell | 5.6K | $76.26 |
| 2025-08-11 | Gubbi Vidyadhara K | Sell | 3.9K | $74.88 |
| 2025-07-20 | Tregillis Cynthia L | Option exercise | 5 | — |
| 2025-07-20 | Tregillis Cynthia L | Tax withheld | 1.3K | $68.00 |
| 2025-06-20 | Tregillis Cynthia L | Option exercise | 0 | — |
| 2025-06-20 | Gubbi Vidyadhara K | Option exercise | 28 | — |
| 2025-06-20 | Gubbi Vidyadhara K | Tax withheld | 8.2K | $59.29 |
| 2025-06-20 | Davis Brian Scott | Option exercise | 28 | — |
| 2025-06-20 | Davis Brian Scott | Tax withheld | 7.5K | $59.29 |
| 2025-06-20 | Tregillis Cynthia L | Tax withheld | 204 | $59.29 |
| 2025-06-20 | Gubbi Vidyadhara K | Option exercise | 6 | — |
| 2025-06-20 | Gubbi Vidyadhara K | Tax withheld | 1.2K | $59.29 |
| 2025-06-20 | Davis Brian Scott | Option exercise | 3 | — |
| 2025-06-20 | Davis Brian Scott | Tax withheld | 669 | $59.29 |
| 2025-06-17 | Zamiska Gene M. | Sell | 245 | $58.01 |
| 2025-06-14 | Zamiska Gene M. | Tax withheld | 240 | $55.70 |
| 2025-06-09 | WESTERN DIGITAL CORP | Other | 21.3M | — |
| 2025-06-09 | WESTERN DIGITAL CORP | Other | 21.3M | — |
| 2025-06-05 | Zamiska Gene M. | Sell | 1.7K | $54.88 |
| 2025-05-27 | Tregillis Cynthia L | Tax withheld | 267 | $51.82 |
| 2025-05-27 | Zamiska Gene M. | Tax withheld | 345 | $51.82 |
| 2025-05-27 | Gubbi Vidyadhara K | Tax withheld | 284 | $51.82 |
| 2025-05-27 | Davis Brian Scott | Tax withheld | 307 | $51.82 |
| 2025-05-25 | Gubbi Vidyadhara K | Tax withheld | 795 | $50.18 |
| 2025-05-25 | Zamiska Gene M. | Tax withheld | 797 | $50.18 |
| 2025-05-25 | Davis Brian Scott | Tax withheld | 675 | $50.18 |
| 2025-05-25 | Tregillis Cynthia L | Tax withheld | 768 | $50.18 |
| 2025-05-25 | Tan Irving | Tax withheld | 116 | $50.18 |
| 2025-05-23 | Tan Irving | Tax withheld | 1.9K | $50.18 |
| 2025-05-20 | Tan Irving | Tax withheld | 39 | $50.63 |
| 2025-05-20 | Gubbi Vidyadhara K | Tax withheld | 412 | $50.63 |
| 2025-05-20 | Davis Brian Scott | Tax withheld | 498 | $50.63 |
| 2025-05-20 | Tregillis Cynthia L | Tax withheld | 379 | $50.63 |
| 2025-05-20 | Zamiska Gene M. | Tax withheld | 360 | $50.63 |
| 2025-05-13 | Tan Irving | Sell | 11K | $48.19 |
| 2025-05-12 | Sennesael Kris | Grant | 172K | — |
| 2025-04-20 | Tregillis Cynthia L | Tax withheld | 1.2K | $36.51 |
| 2025-04-20 | Gubbi Vidyadhara K | Tax withheld | 2.1K | $36.51 |
| 2025-03-20 | Davis Brian Scott | Tax withheld | 669 | $44.51 |
| 2025-03-20 | Tan Irving | Tax withheld | 457 | $44.51 |
| 2025-03-17 | Shihab Ahmed Mohammed | Grant | 156K | — |
| 2025-03-12 | Zamiska Gene M. | Sell | 456 | $43.37 |
| 2025-03-07 | Zamiska Gene M. | Sell | 1.7K | $41.36 |
| 2025-03-06 | Davis Brian Scott | Tax withheld | 1.5K | $41.45 |
| 2025-03-06 | Bennett Don R | Tax withheld | 1.6K | $41.45 |
| 2025-03-06 | Zamiska Gene M. | Tax withheld | 1.1K | $41.45 |
| 2025-03-06 | Tregillis Cynthia L | Tax withheld | 875 | $41.45 |
| 2025-03-06 | Gubbi Vidyadhara K | Tax withheld | 1.5K | $41.45 |
| 2025-03-03 | Gubbi Vidyadhara K | Grant | 43K | — |
| 2025-03-03 | Davis Brian Scott | Grant | 21K | — |
| 2025-03-03 | Tan Irving | Grant | 55K | — |
| 2025-03-03 | Tregillis Cynthia L | Grant | 21K | — |
| 2025-02-28 | Zamiska Gene M. | Grant | 5.3K | — |
| 2025-02-28 | JABRE WISSAM G | Grant | 74K | — |
| 2025-02-28 | Oulman Roxanne | Grant | 4.1K | — |
| 2025-02-28 | KIDDOO BRUCE E | Grant | 4.1K | — |
| 2025-02-21 | WESTERN DIGITAL CORP | Other | 116.0M | — |
| 2025-02-13 | WESTERN DIGITAL CORP | Grant | 29.9M | — |
All non-derivative Form 4 activity (SEC), newest first.
Supply chain
Customers (0)
Suppliers (1)
Named in the 10-K; linked when we track them.
Notable events (8-K)
Recent filings
| Form | Filed | Period | Accession |
|---|---|---|---|
| 8-K | 2026-06-11 | 2026-06-11 | 0001193125-26-267514 ↗ |
| 8-K/A | 2026-06-08 | 2026-06-02 | 0001193125-26-260797 ↗ |
| 8-K | 2026-06-03 | 2026-06-02 | 0001193125-26-254621 ↗ |
| 8-K | 2026-05-28 | 2026-05-26 | 0001628280-26-038632 ↗ |
| 10-Q | 2026-05-01 | 2026-04-03 | 0001628280-26-029054 ↗ |
| 8-K | 2026-04-30 | 2026-04-30 | 0001628280-26-028878 ↗ |
| 8-K | 2026-02-24 | 2026-02-23 | 0001193125-26-067035 ↗ |
| 8-K | 2026-02-18 | 2026-02-17 | 0001193125-26-055920 ↗ |
| 8-K | 2026-02-09 | 2026-02-05 | 0001193125-26-041896 ↗ |
| 10-Q | 2026-01-30 | 2026-01-02 | 0001628280-26-004207 ↗ |
| 8-K | 2026-01-29 | 2026-01-29 | 0001628280-26-004131 ↗ |
| 8-K | 2025-11-24 | 2025-11-20 | 0001628280-25-053809 ↗ |