Is "filled_quantity" in order postback cumulative?

vineet_dhandhania
Hi,
Say a limit order to buy 100 shares gets executed partially over 2 trades as follows:
Trade 1: 10 shares got filled
Trade 2: 15 shares got filled

Remaining 75 shares are open.

filled_quantity of Trade 1 postback will be 10. No doubt here.
Will filled_quantity of Trade 2 be 15 or 25, as in, will it carry the quantity that was filled in the immediately last trade or cumulative over all the trades of the order?

Thanks!
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