KEYSTONE INVESTORS PTE LTD: WESTERN DIGITAL CORP (WDC): Quarterly 13F Position History
As of Q4 2025, KEYSTONE INVESTORS PTE LTD reported 197,152 shares of WESTERN DIGITAL CORP (WDC), worth $34.0M and representing 3.1% of its 13F equity book. Quarter-over-quarter share count change: 89,736 (-31.3%) . The position first appeared in Q2 2025 and has been disclosed across 3 13F-HR filings in Pactolio's tracked window.
- 197,152Shares Held (Latest Filing)
- $34.0MReported Market Value (Latest Filing)
- 3.1%Portfolio Weight (% of 13F Equity Book)
- 89,736Quarter-over-Quarter Share Change
- -$480.4KQuarter-over-Quarter Value Change
- 332,576Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 3 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q4 2025 | 197,152 | 89,736 | -31.3% | $34.0M | 3.1% | $172.3 |
| Q3 2025 | 286,888 | 45,688 | -13.7% | $34.4M | 4.0% | $120.1 |
| Q2 2025 | 332,576 | — | — | $21.3M | 4.4% | $64.0 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did KEYSTONE INVESTORS PTE LTD first disclose a WDC position in 13F-HR filings?
KEYSTONE INVESTORS PTE LTD first reported WESTERN DIGITAL CORP (WDC) on its 13F-HR filing for the period ending 2025-06-30 (Q2 2025). The position has appeared on 3 reported quarters within Pactolio's tracked window.
What was KEYSTONE INVESTORS PTE LTD's most recent quarter-over-quarter share-count change in WDC?
Between Q3 2025 and Q4 2025, KEYSTONE INVESTORS PTE LTD reduced its WDC position by 89,736 shares (-31.3%), leaving 197,152 shares at a market value of $34.0M.
Does the implied price-per-share represent KEYSTONE INVESTORS PTE LTD's cost basis in WDC?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.