Stock buybacks are flexible:

"Repurchases under Delta's program may be made through a variety of methods, which may include open market purchases, privately negotiated transactions, block trades, or accelerated share repurchase transactions in compliance with applicable regulatory guidelines, including Securities and Exchange Commission Rule 10b-18. Purchases will be made subject to market and economic conditions, applicable legal requirements, and other relevant factors."

They are reported in the quarterly earnings and in the annual report. So the Q2 earnings is July 15th I think? It will be listed as treasury stock in the form 10-Q under the balance sheet, shareholder equity.

2015 Q1 treasury stock: $365 million

Also in case you were wondering:

2015 Q1 profit sharing withheld: $136 million
2014 Q1 profit sharing withheld: $99 million

That's right, 40 percent more profit sharing earned in this years q1 than last year. 40 percent! Wow. I think we should hold on to our profit sharing. Can't wait to see the Q2 comparison this year.


http://ir.delta.com/m/#/SEC_Filings