Western Digital shares owned by Parallax Volatility Advisers
Quarter-by-quarter ownership of Western Digital (WDC) shares owned by Parallax Volatility Advisers
from 13F filings
Historical chart of Parallax Volatility Advisers investment in Western Digital
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Quarterly reported holdings in Western Digital by Parallax Volatility Advisers
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $62M | 512k | 120.06 |
| 2025-06-30 | $29M | 446k | 63.99 |
| 2025-03-31 | $20M | 497k | 40.43 |
| 2024-12-31 | $21M | 349k | 59.63 |
| 2024-09-30 | $27M | 392k | 68.29 |
| 2024-06-30 | $32M | 424k | 75.77 |
| 2024-03-31 | $10M | 152k | 68.24 |
| 2023-12-31 | $9.6M | 184k | 52.37 |
| 2023-09-30 | $8.0M | 176k | 45.63 |
| 2023-06-30 | $4.4M | 115k | 37.93 |
| 2023-03-31 | $33M | 888k | 37.67 |
| 2022-12-31 | $29M | 924k | 31.55 |
| 2022-09-30 | $31M | 959k | 32.56 |
| 2022-06-30 | $39M | 872k | 44.83 |
| 2022-03-31 | $74M | 1.5M | 49.65 |
| 2021-12-31 | $102M | 1.5M | 70.00 |
| 2021-09-30 | $126M | 2.1M | 60.00 |
| 2021-06-30 | $54M | 777k | 70.00 |
| 2021-03-31 | $92M | 1.4M | 65.00 |
| 2020-12-31 | $94M | 1.6M | 60.00 |
| 2020-09-30 | $169M | 4.2M | 40.00 |
| 2020-06-30 | $48M | 1.2M | 40.00 |
| 2020-03-31 | $60M | 1.5M | 40.00 |
| 2019-12-31 | $70M | 1.2M | 60.00 |
| 2019-09-30 | $102M | 1.7M | 60.00 |
| 2019-06-30 | $152M | 3.0M | 50.00 |
| 2019-03-31 | $137M | 2.7M | 50.00 |
| 2018-12-31 | $49M | 1.2M | 40.00 |
| 2018-09-30 | $27M | 452k | 60.00 |
| 2018-06-30 | $20M | 256k | 77.14 |
| 2018-03-31 | $55M | 597k | 92.08 |
| 2017-12-31 | $29M | 361k | 80.00 |
| 2017-09-30 | $43M | 473k | 90.00 |
| 2017-06-30 | $11M | 118k | 90.00 |
| 2017-03-31 | $6.4M | 80k | 80.00 |
| 2016-12-31 | $2.4M | 37k | 66.67 |
| 2016-09-30 | $9.4M | 157k | 60.00 |
| 2016-06-30 | $5.6M | 120k | 46.67 |
| 2016-03-31 | $2.4M | 48k | 50.00 |
| 2015-12-31 | $2.5M | 43k | 60.00 |
| 2015-09-30 | $9.4M | 118k | 80.00 |
| 2015-06-30 | $49M | 610k | 80.00 |
| 2015-03-31 | $57M | 634k | 90.00 |
| 2014-12-31 | $29M | 266k | 110.00 |
| 2014-09-30 | $34M | 337k | 100.00 |
| 2014-06-30 | $12M | 135k | 90.00 |
| 2014-03-31 | $7.7M | 86k | 90.00 |
| 2013-12-31 | $2.3M | 29k | 80.00 |
| 2013-09-30 | $807k | 14k | 60.00 |
| 2013-06-30 | $2.1M | 35k | 60.00 |
| 2013-03-31 | $1.4M | 28k | 50.00 |
| 2012-12-31 | $16M | 399k | 40.00 |
| 2012-09-30 | $108k | 2.7k | 40.00 |
| 2012-06-30 | $24k | 800 | 30.00 |
| 2012-03-31 | $15k | 382 | 40.00 |
| 2011-12-31 | $331k | 11k | 30.93 |
| 2011-09-30 | $1.7M | 67k | 25.74 |
| 2011-06-30 | $2.0M | 56k | 36.52 |
| 2011-03-31 | $9.3M | 252k | 37.14 |
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