<!--Enhanced HTML document created with Toppan Merrill Bridge  9.9.1.77--><!--Created on: 3/3/2021 12:01:30 PM (UTC)--><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta charset="UTF-8"><title></title></head><body><div style="margin-top:30pt;"></div><div style="max-width:100%;padding-left:5.88%;padding-right:5.88%;position:relative;"><div style="clear:both;max-width:100%;position:relative;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:4pt 0pt 0pt 0pt;"><b style="font-size:16pt;font-weight:bold;">UNITED STATES</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:16pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:11pt;font-weight:bold;">Washington, D.C. 20549</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;border-bottom:1px solid #000000;margin:0pt 216pt 0pt 216pt;"><font style="font-size:11pt;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:6pt 0pt 0pt 0pt;"><b style="font-size:16pt;font-weight:bold;">FORM 8-K</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;border-bottom:1px solid #000000;margin:0pt 216pt 0pt 216pt;"><font style="font-size:6pt;margin-left:0pt;margin-right:0pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:6pt 0pt 0pt 0pt;"><b style="font-size:11pt;font-weight:bold;">CURRENT REPORT</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:11pt;font-weight:bold;">Pursuant to Section 13 or 15(d)</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:0pt;"><b style="font-size:11pt;font-weight:bold;">of the Securities Exchange Act of 1934</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:6pt 0pt 0pt 0pt;"><b style="font-size:11pt;font-weight:bold;">Date of Report (Date of earliest event reported): March 3, 2021</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;border-bottom:1px solid #000000;margin:0pt 216pt 0pt 216pt;"><font style="font-size:11pt;">&#160;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:6pt 0pt 0pt 0pt;"><b style="font-size:22pt;font-weight:bold;">PASSAGE BIO, INC.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:9pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Exact name of registrant as specified in its charter)</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;border-bottom:1px solid #000000;margin:0pt 216pt 0pt 216pt;"><font style="font-size:11pt;">&#160;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:11pt;">&#160;</font></p><div><table style="border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:98.99%;" align="center"><tr style="height:12.4pt;"><td style="vertical-align:top;width:34%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:9pt;line-height:1.27;text-align:center;margin:0pt;"><b style="font-weight:bold;">Delaware</b></p></td><td style="vertical-align:bottom;width:1%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;text-align:center;margin:0pt;"><font 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Roman','Times','serif';font-size:7pt;line-height:1.27;text-align:center;margin:0pt;"><b style="font-weight:bold;">(State or other jurisdiction</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;line-height:1.27;text-align:center;margin:0pt;"><b style="font-weight:bold;">of incorporation)</b></p></td><td style="vertical-align:bottom;width:1%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;text-align:center;margin:0pt;"><font style="font-size:7pt;visibility:hidden;">&#8203;</font></p></td><td style="vertical-align:top;width:31.99%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;line-height:1.27;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Commission</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;line-height:1.27;text-align:center;margin:0pt;"><b style="font-weight:bold;">File Number)</b></p></td><td 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Roman','Times','serif';font-size:7pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Address of principal executive offices)</b></p></td><td style="vertical-align:bottom;width:50%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">(Zip Code)</b></p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-size:5pt;visibility:hidden;">&#8203;</font></p><p style="font-family:'Times New Roman','Times','serif';font-size:9pt;text-align:center;margin:0pt;"><b style="font-weight:bold;">(267) 866-0311</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:7pt;text-align:center;margin:0pt;"><b style="font-weight:bold;white-space:pre-wrap;"> (Registrant&#8217;s telephone number, including area code)</b></p><p style="font-family:'Times New 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name="part_1_2_2"></a><a name="item_1_47_1"></a><a name="part_1_2_3"></a><b style="font-weight:bold;">Item&#160;2.02 Results of Operations and Financial Condition.</b></p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:27.8pt;margin:6pt 0pt 0pt 0pt;">On March 3, 2021, Passage Bio, Inc. issued a press release announcing its financial results for the year ended December 31, 2021. A copy of the press release is attached as Exhibit 99.1 to this report.</p><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-indent:27.8pt;margin:12pt 0pt 0pt 0pt;">The information in this Item 2.02, including Exhibit 99.1 to this report, shall not be deemed to be &#8220;filed&#8221; for purposes of Section&#160;18 of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;). The information contained in this Item 2.02 and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any other filing under the Exchange Act or under the Securities Act, except as shall be expressly set forth by specific reference in such filing.</p><p style="background-color:#ffffff;font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><font style="font-weight:bold;visibility:hidden;">&#8203;</font></p><p style="background-color:#ffffff;font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:justify;margin:0pt;"><b style="font-weight:bold;">Item 7.01 Regulation FD Disclosure.</b></p><p style="background-color:#ffffff;font-family:'Times New Roman','Times','serif';font-size:10pt;padding-top:6pt;text-indent:24.5pt;margin:0pt;">On March 3, 2021, the Company also updated its corporate presentation. 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The information contained in this Item 7.01 and in the accompanying Exhibit 99.2 shall not be incorporated by reference into any other filing under the Exchange Act or under the Securities Act, except as shall be expressly set forth by specific reference in such filing.</p><p style="background-color:#ffffff;font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="font-family:'Calibri','Helvetica','sans-serif';font-size:18pt;visibility:hidden;">&#8203;</font></p><div align="left"><table style="background-color:#ffffff;border-collapse:collapse;font-size:16pt;height:max-content;padding-left:0pt;padding-right:0pt;width:100%;"><tr><td style="background-color:#ffffff;vertical-align:top;width:10%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;"><b style="font-weight:bold;">Item&#160;9.01</b></p></td><td style="background-color:#ffffff;vertical-align:top;width:90%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;"><b style="font-weight:bold;">Financial Statements and Exhibits.</b></p></td></tr></table></div><p style="background-color:#ffffff;font-family:'Times New Roman','Times','serif';font-size:10pt;margin:6pt 0pt 0pt 0pt;">(d)&#160;Exhibits</p><p style="background-color:#ffffff;font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;">&#160;</p><div><table style="background-color:#ffffff;border-collapse:collapse;font-size:16pt;height:max-content;margin-left:auto;margin-right:auto;padding-left:0pt;padding-right:0pt;width:100%;" align="center"><tr style="height:1pt;"><td style="vertical-align:middle;width:7.4%;margin:0pt;padding:0pt;"><div style="height:1pt;overflow:hidden;overflow-wrap:break-word;position:relative;"><div 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style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.27;border-bottom:1.0pt solid #000000;margin:0pt;"><b style="font-weight:bold;">Exhibit&#160;No.</b></p></td><td style="background-color:#ffffff;vertical-align:bottom;width:6.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.27;margin:0pt;">&#160;&#160;</p></td><td style="background-color:#ffffff;vertical-align:bottom;width:85.91%;border-bottom:1.0pt solid #000000;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.27;text-align:center;margin:0pt 0pt 1pt 0pt;"><b style="font-weight:bold;">Description</b></p></td></tr><tr style="height:6pt;"><td style="background-color:#ffffff;vertical-align:middle;width:7.4%;margin:0pt;padding:0pt;"></td><td colspan="2" style="background-color:#ffffff;vertical-align:middle;width:92.59%;margin:0pt;padding:0pt;"></td></tr><tr><td style="background-color:#ffffff;vertical-align:top;white-space:nowrap;width:7.4%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;">99.1</p></td><td style="background-color:#ffffff;vertical-align:bottom;width:6.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;">&#160;&#160;</p></td><td style="background-color:#ffffff;vertical-align:top;width:85.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;"><a style="-sec-extract:exhibit;" href="tmb-20210303xex99d1.htm"><font style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;line-height:1.27;text-align:left;">Press release issued by Passage Bio, Inc. regarding its financial results for the year ended December 31, 2020, dated March 3, 2021.</font></a></p></td></tr><tr><td style="background-color:#ffffff;vertical-align:top;white-space:nowrap;width:7.4%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;">99.2</p></td><td style="background-color:#ffffff;vertical-align:bottom;width:6.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></td><td style="background-color:#ffffff;vertical-align:top;width:85.91%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;"><a style="-sec-extract:exhibit;" href="tmb-20210303xex99d2.htm"><font style="font-family:'Times New Roman','Times','serif';font-size:10pt;font-style:normal;font-weight:normal;line-height:1.27;text-align:left;">Corporate Presentation.</font></a></p></td></tr></table></div><p 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Roman','Times','serif';font-size:8pt;line-height:1.27;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:0.88%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;">&#160;</p></td><td style="vertical-align:top;width:2.67%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:8pt;line-height:1.27;margin:0pt;">&#160;</p></td><td style="vertical-align:bottom;width:0.88%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;">&#160;</p></td><td style="vertical-align:top;width:36.88%;margin:0pt;padding:0pt;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;line-height:1.27;margin:0pt;">Chief Financial Officer</p></td></tr></table></div><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;margin:0pt;"><font style="visibility:hidden;">&#8203;</font></p></div><div style="clear:both;margin-bottom:30pt;width:100%;"><p style="font-family:'Times New Roman','Times','serif';font-size:10pt;text-align:center;margin:24pt 0pt 0pt 0pt;">3</p></div></div><hr style="background-color:#000000;clear:both;color:#000000;height:2pt;line-height:0;margin-left:5.88%;margin-right:5.88%;margin-top:30pt;page-break-after:avoid;width:88.24%;border-width:0;"></body></html>
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
​
FORM 8-K
​
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): March 3, 2021
PASSAGE BIO, INC.
(Exact name of registrant as specified in its charter)
Delaware
​
001-39231
​
82-2729751
(State or other jurisdiction
of incorporation)
​
(Commission
File Number)
​
(IRS Employer
Identification No.)
Two Commerce Square
2001 Market Street, 28
th
Floor
Philadelphia, PA
19103
(Address of principal executive offices)
(Zip Code)
​
(267) 866-0311
(Registrant's telephone number, including area code)
​
N/A
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
◻
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
◻
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
◻
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
◻
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
​
Securities registered pursuant to Section 12(b) of the Act:
​
Title of each class
Trading symbol(s)
Name of each exchange on which registered
Common Stock, $0.0001 Par Value Per Share
PASG
The Nasdaq Stock Market LLC
(Nasdaq Global Select Market)
​
​
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company
☒
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
◻
​
Item 2.02 Results of Operations and Financial Condition.
On March 3, 2021, Passage Bio, Inc. issued a press release announcing its financial results for the year ended December 31, 2021. A copy of the press release is attached as Exhibit 99.1 to this report.
The information in this Item 2.02, including Exhibit 99.1 to this report, shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the "Securities Act"). The information contained in this Item 2.02 and in the accompanying Exhibit 99.1 shall not be incorporated by reference into any other filing under the Exchange Act or under the Securities Act, except as shall be expressly set forth by specific reference in such filing.
​
Item 7.01 Regulation FD Disclosure.
On March 3, 2021, the Company also updated its corporate presentation. A copy of the corporate presentation is attached as Exhibit 99.2 to this report.
The information in this Item 7.01, including Exhibit 99.2 to this report, shall not be deemed to be "filed" for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section or Sections 11 and 12(a)(2) of the Securities Act. The information contained in this Item 7.01 and in the accompanying Exhibit 99.2 shall not be incorporated by reference into any other filing under the Exchange Act or under the Securities Act, except as shall be expressly set forth by specific reference in such filing.
​
Item 9.01
Financial Statements and Exhibits.
(d) Exhibits
Exhibit No.
Description
99.1
Press release issued by Passage Bio, Inc. regarding its financial results for the year ended December 31, 2020, dated March 3, 2021.
99.2
​
Corporate Presentation.
​
​
​
2
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
PASSAGE BIO, INC.
​
​
​
​
​
​
​
Date: March 3, 2021
By:
/s/ Richard Morris
Richard Morris
Chief Financial Officer
​
3