Large Trader Rule 13H Question

Per the SEC:

"Rule 13h-1 will require a “large trader,” defined as a person whose transactions in NMS securities equal or exceed 2 million shares or $20 million during any calendar day, or 20 million shares or $200 million during any calendar month, to identify itself to the Commission and make certain disclosures to the Commission on Form 13H..."

Does 2 million shares/$20 million in a day and 20 million shares/$200 million in a month apply in a roundtrip fashion, or does the buy AND the sell count toward the limit?

 

Essentially asking if buying 1 share and then selling 1 share = 1 share or 2 shares.

 

Thank you!