UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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): October 18, 2018 (October 17, 2018)

HISTOGENICS CORPORATION

(Exact Name of Registrant as Specified in its Charter)

830 Winter Street, 3rd Floor

Waltham, Massachusetts 02451

(781) 547-7900

(Addresses, including zip code, and telephone numbers, including area code, of principal executive offices)

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 (see General Instruction A.2. below):

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.  ☐

On October 17, 2018, Histogenics Corporation (the “Company”) received a deficiency letter from the Nasdaq Listing Qualifications Department (the “Staff”) of the Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, for the last 30 consecutive business days, the closing bid price for the Company’s common stock has closed below a minimum $1.00 per share required for continued listing on The Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2) (“Rule 5550(a)(2)”). The Nasdaq deficiency letter has no immediate effect on the listing of the Company’s common stock, and its common stock will continue to trade on The Nasdaq Capital Market under the symbol “HSGX” at this time.

In accordance with Nasdaq Listing Rule 5810(c)(3)(A), the Company has been given 180 calendar days, or until April 15, 2019 to regain compliance with Rule 5550(a)(2). If the Company chooses to implement a reverse stock split, it must complete the split no later than ten business days prior to April 15, 2019 to regain compliance. If at any time before April 15, 2019, the bid price of the Company’s common stock closes at $1.00 per share or more for a minimum of 10 consecutive business days (an “Automatic Compliance Event”), the Staff will provide written confirmation that the Company has achieved compliance with Rule 5550(a)(2).

If the Company does not regain compliance with Rule 5550(a)(2) by April 15, 2019, the Company may be afforded a second 180 calendar day period to regain compliance. To qualify, the Company would be required to meet the continued listing requirement for market value of publicly held shares and all other initial listing standards for The Nasdaq Capital Market, except for the minimum bid price requirement. In addition, the Company would be required to notify Nasdaq of its intent to cure the deficiency during the second compliance period, which may include, if necessary, implementing a reverse stock split.

If the Company does not regain compliance with Rule 5550(a)(2) by April 15, 2019, and is not eligible for an additional compliance period at that time, the Staff will provide notice to the Company that its securities will be subject to delisting. At that time, the Company may appeal the Staff’s delisting determination to a Nasdaq Listing Qualifications Panel (“Panel”). The Company would remain listed pending the Panel’s decision.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.