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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1420565	Aileron Therapeutics Inc	ALRN	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1007706	H Josef Rickenbach Von	C/O Aileron Therapeutics, Inc. 490 Arsenal Way, Suite 210 Watertown MA 02472		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Acquisiton	2019-08-30	15,000	$0.73	68,352	No	4	P	Direct
Common Stock	Acquisiton	2019-09-03	13,466	$0.70	81,818	No	4	P	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	P	Direct
No	4	P	Direct

Footnotes

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.7155 per share to $0.75 per share, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer 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.
The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.6805 per share to $0.7204 per share, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer 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.