KEYSTONE INVESTORS PTE LTD: WESTERN DIGITAL CORP (WDC): Quarterly 13F Position History
As of Q2 2026, KEYSTONE INVESTORS PTE LTD reported 294,247 shares of WESTERN DIGITAL CORP (WDC), worth $187.9M and representing 10.1% of its 13F equity book. Quarter-over-quarter share count change: + 97,095 (+49.2%) . The position first appeared in Q2 2025 and has been disclosed across 4 13F-HR filings in Pactolio's tracked window.
- 294,247Shares Held (Latest Filing)
- $187.9MReported Market Value (Latest Filing)
- 10.1%Portfolio Weight (% of 13F Equity Book)
- +97,095Quarter-over-Quarter Share Change
- +$154.0MQuarter-over-Quarter Value Change
- 332,576Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 4 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q2 2026 | 294,247 | +97,095 | +49.2% | $187.9M | 10.1% | $638.7 |
| 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 rather than 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 4 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 Q4 2025 and Q2 2026, KEYSTONE INVESTORS PTE LTD added 97,095 shares of WDC (+49.2%), bringing the total reported position to 294,247 shares at a market value of $187.9M.
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.