Fold3.COM has a June 1945 USFET Report on redeployment that gives us an inventory of the US ETO stockpile circa Mid-Summer 1945:
https://www.fold3.com/image/287322875/287322894
https://www.fold3.com/image/287322875/287322897
7,636 x M4 Shermans (75/76) in ETO; with 1,172 obligated for occupation forces, and 469 scheduled for redeployment, and 686 already shipped out.
1,468 x M4 Shermans (105) in ETO; with 164 obligated for occupation forces, and 86 scheduled for redeployment and 28 already shipped out.
295 x M26 Pershings in ETO; with zero (0) being scheduled for redeployment.
So it looks to me as soon as "Big Army" knew that Germany was done and dusted; they immediately put a screeching halt to any further shipments of Pershings to ETO and pushed everything towards the Pacific Ports.
I kept digging further and found something related to the 781st Tank Battalion on Fold3 dated 12 Feb 1946 that was the Unit History from 1 Jan 1946 to 19 Feb 1946:
https://www.fold3.com/image/313748320
Apparently on 31 December 1945; 2nd Army made the TO&E of the 781st Tk Bn in CONUS to be:
Company A: Medium Tank Company
Company B: Heavy Tank Company
Company C: Deactivated -- Was a Medium Tank Co; men transferred to other companies, bringing them up to strength.
Company D: Light Tank Company
This didn't last long as on 4 Feb 1946, the Battalion was ordered inactivated, and was accordingly deactivated on 19 February 1946.
PS: I went further into the rabbithole on the 781st and found this:
https://www.fold3.com/image/313748459
Higher headquarters making every attempt to get armor to the infantry across the Neckar River equipped Company "A" [of the 781st] on the 6th of April [1945] with ten(10) DD (floating tanks) and company personnel received intensive training in the use of these tanks for one day prior to use.
"You've got one day of training on these DD tanks! Now do a forced river crossing with them the next day!"
