SEC Form 4 · accession 0001127602-18-007520

· AZPN

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Officer — President & CEO · Director

Period of report

Feb 16, 2018

Accepted (ET)

Feb 21, 2018 · 4:08 pm EST

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0000929940

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock	Feb 16, 2018	M	3,264	$32.54	A	250,416	D
Common Stock	Feb 16, 2018	M	25	$43.44	A	250,441	D
Common Stock	Feb 16, 2018	M	26,900	$23.38	A	277,341	D
Common Stock^F1	Feb 16, 2018	S	26,900	$76.56	D	250,441	D

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Employee Stock Option (Right to Buy)^F2	$32.54	Feb 16, 2018	M	3,264	D	—	Jul 31, 2023	Common Stock	3,264	44,754	D
Employee Stock Option (Right to Buy)^F3	$43.44	Feb 16, 2018	M	25	D	—	Jul 31, 2024	Common Stock	25	50,332	D
Employee Stock Option (Right to Buy)^F4	$23.38	Feb 16, 2018	M	26,900	D	—	Jul 31, 2022	Common Stock	26,900	0	D

F1The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $76.01 to $77.01, inclusive. The reporting person undertakes to provide to Aspen Technology, Inc., any security holder of Aspen Technology, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F2The option granted at the exercise price of $32.54 per share, representing a right to purchase a total of 48,018shares, became exercisable in 16 equal consecutive quarterly installments on the last business day of the quarter beginning on September 30, 2013.
F3The option granted at the exercise price of $43.44 per share, representing a right to purchase a total of 50,357 shares, becomes exercisable in 16 equal consecutive quarterly installments on the last business day of the quarter, beginning on September 30, 2014.
F4The option granted at the exercise price of $23.38 per share, representing a right to purchase a total of 32,079 shares, became exercisable in 16 equal consecutive quarterly installments on the last business day of each quarter, beginning September 28, 2012.