Wash sale question

Say I own 100k shares of ABC company at an avg cost of $5/share. The price of ABC increases to $10/share and I decide to sell half of my position. Some of my shares were purchased for $20/share and those lots were sold for a loss. The other shares were purchased for less than $5 and those lots were sold for a gain. Overall, there was a realized gain on ABC Company. The cost basis for the remaining 50k shares is now $3/share.

Can I buy more shares before the 30-day window, or does the wash sale apply here on the shares that were sold for a loss?