Cue Biopharma (CUE) completes $49,999,927 Reg D Rule 506(b) raise

Rhea-AI Filing Summary

Cue Biopharma, Inc., a Delaware biotechnology company based in Boston, filed a notice of an exempt private securities offering. The company is relying on Regulation D, Rule 506(b) and has conducted a new offering of equity, warrants or other rights to acquire securities, and the securities issuable upon exercise of those rights.

The offering shows a total amount sold of $49,999,927 with $0 remaining to be sold, indicating the round is fully subscribed as reported here. The date of first sale is listed as July 13, 2026. No finders’ fees are reported, with finders’ fees stated as $0. The issuer declined to disclose its revenue range.

Filing Explained

The Form D leaves the offering’s use of proceeds unreported, so the filing does not establish what portion, if any, will be allocated to executives, directors, or promoters.

Key Figures

Total Amount Sold: $49,999,927 USD Total Remaining to be Sold: $0 USD Date of First Sale: 2026-07-13 +3 more

6 metrics

Total Amount Sold $49,999,927 USD Reported under Offering and Sales Amounts for this exempt offering

Total Remaining to be Sold $0 USD Indicates the offering amount reported is fully sold

Date of First Sale 2026-07-13 Stated in the Type of Filing section as the first sale date

Finders’ Fees $0 USD Sales Commissions & Finder's Fees Expenses section

Exemption Relied Upon Rule 506(b) Selected under Federal Exemption(s) and Exclusion(s) Claimed

Issuer Industry Health Care – Biotechnology Industry Group section indicating the company’s sector

Key Terms

Rule 506(b), Regulation D, covered securities, Investment Company Act of 1940, +1 more

5 terms

Rule 506(b) regulatory

"Federal Exemption(s) and Exclusion(s) Claimed section lists Rule 506(b)"

Rule 506(b) is a U.S. securities exemption that lets companies sell shares or debt privately without full public registration, provided sales are primarily to accredited investors, up to 35 non‑accredited but financially knowledgeable buyers, and there is no public advertising or solicitation. It matters to investors because offerings under 506(b) usually include less public disclosure than registered securities—like buying from a private seller rather than a retail store—so buyers must do more of their own fact‑checking and rely on their financial sophistication.

Regulation D regulatory

"Certifying that, if the issuer is claiming a Regulation D exemption"

Regulation D is a set of rules that govern how companies can raise money from investors without going through the full process required for public stock offerings. It provides simplified options for private placements, making it easier for companies to seek investments from a smaller group of investors. For investors, it offers opportunities to invest in private companies, often with fewer restrictions, but also with different levels of risk and disclosure.

covered securities regulatory

"If the securities that are the subject of this Form D are "covered securities""

Investment Company Act of 1940 regulatory

"Is the issuer registered as an investment company under the Investment Company Act of 1940?"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

option, warrant or other right to acquire another security financial

"Option, Warrant or Other Right to Acquire Another Security"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/22/2026 - 01:24 PM Accepted by SEC EDGAR 07/22/2026 - 01:23 PM Learn about SEC filing dates

FAQ

How much did Cue Biopharma (CUE) raise in this exempt offering?

Cue Biopharma raised $49,999,927 in this exempt offering. The filing reports a total amount sold of $49,999,927 USD and a total remaining to be sold of $0 USD, indicating the reported round is fully placed.

What exemption is Cue Biopharma (CUE) using for this capital raise?

Cue Biopharma is relying on Regulation D, Rule 506(b) for this private offering. This exemption allows the company to sell securities without full SEC registration, typically to accredited investors, subject to specific regulatory conditions.

What types of securities is Cue Biopharma (CUE) offering in this Form D?

The company is offering equity, options or warrants (or other rights to acquire another security), and the securities issuable upon exercise of those rights. These instruments together make up the $49,999,927 sold in the offering.

When did Cue Biopharma (CUE) first sell securities in this offering?

The first sale in this offering occurred on July 13, 2026. The filing identifies this as a new notice, with that date listed as the date of first sale under the Rule 506(b) exempt offering.

Did Cue Biopharma (CUE) pay any finders’ fees or sales commissions in this offering?

The filing reports $0 in finders’ fees. The sales commissions and finders’ fees section lists finders’ fees as $0 USD, suggesting no such fees were incurred or paid as part of this raise.

What is Cue Biopharma’s (CUE) industry and where is it based?

Cue Biopharma is categorized in Health Care – Biotechnology and is incorporated in Delaware. Its principal place of business is listed as 40 Guest Street, Boston, Massachusetts 02135, with a Boston-area contact phone number.

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Intentional misstatements or omissions of fact constitute federal criminal violations. See 18 U.S.C. 1001.

FORM D

Notice of Exempt Offering of Securities

OMB APPROVAL

OMB Number:			3235-0076
Estimated average burden
hours per response:			4.00

1. Issuer's Identity

CIK (Filer ID Number)

Previous Names

None

Entity Type

0001645460

Imagen Biopharma, Inc.

X	Corporation
	Limited Partnership
	Limited Liability Company
	General Partnership
	Business Trust
	Other (Specify)

Name of Issuer

Cue Biopharma, Inc.

Jurisdiction of Incorporation/Organization

DELAWARE

Year of Incorporation/Organization

X	Over Five Years Ago
	Within Last Five Years (Specify Year)
	Yet to Be Formed

2. Principal Place of Business and Contact Information

Name of Issuer
Cue Biopharma, Inc.
Street Address 1		Street Address 2
40 GUEST STREET
City	State/Province/Country	ZIP/PostalCode	Phone Number of Issuer
BOSTON	MASSACHUSETTS	02135	617-949-2680

3. Related Persons

Last Name	First Name	Middle Name
Lin	Shao-Lee
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: X Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Borie	Dominic
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: X Executive Officer Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Ray	Sumita
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: X Executive Officer Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Camardo	Daniel
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Garzone	Pamela
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Meehan	Viola
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Sarraf	Pasha
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: Executive Officer X Director Promoter

Clarification of Response (if Necessary):

Last Name	First Name	Middle Name
Meluzio	Michael
Street Address 1	Street Address 2
40 Guest Street
City	State/Province/Country	ZIP/PostalCode
Boston	MASSACHUSETTS	02135

Relationship: X Executive Officer Director Promoter

Clarification of Response (if Necessary):

4. Industry Group

Agriculture

Banking & Financial Services

Commercial Banking

Insurance

Investing

Investment Banking

Pooled Investment Fund

Is the issuer registered as
an investment company under
the Investment Company
Act of 1940?

Yes No

Other Banking & Financial Services

Business Services

Energy

Coal Mining

Electric Utilities

Energy Conservation

Environmental Services

Oil & Gas

Other Energy

	Health Care
	X Biotechnology
	Health Insurance
	Hospitals & Physicians
	Pharmaceuticals
	Other Health Care
	Manufacturing
	Real Estate
	Commercial
	Construction
	REITS & Finance
	Residential
	Other Real Estate

Retailing

Restaurants

Technology

Computers

Telecommunications

Other Technology

Travel

Airlines & Airports

Lodging & Conventions

Tourism & Travel Services

Other Travel

Other

5. Issuer Size

Revenue Range		OR	Aggregate Net Asset Value Range
	No Revenues			No Aggregate Net Asset Value
	$1 - $1,000,000			$1 - $5,000,000
	$1,000,001 - $5,000,000			$5,000,001 - $25,000,000
	$5,000,001 - $25,000,000			$25,000,001 - $50,000,000
	$25,000,001 - $100,000,000			$50,000,001 - $100,000,000
	Over $100,000,000			Over $100,000,000
X	Decline to Disclose			Decline to Disclose
	Not Applicable			Not Applicable

6. Federal Exemption(s) and Exclusion(s) Claimed (select all that apply)

		Rule 504(b)(1) (not (i), (ii) or (iii))
		Rule 504 (b)(1)(i)
		Rule 504 (b)(1)(ii)
		Rule 504 (b)(1)(iii)
	X	Rule 506(b)
		Rule 506(c)
		Securities Act Section 4(a)(5)

Investment Company Act Section 3(c)

Section 3(c)(1) Section 3(c)(9)

Section 3(c)(2) Section 3(c)(10)

Section 3(c)(3) Section 3(c)(11)

Section 3(c)(4) Section 3(c)(12)

Section 3(c)(5) Section 3(c)(13)

Section 3(c)(6) Section 3(c)(14)

Section 3(c)(7)

7. Type of Filing

X	New Notice			Date of First Sale	2026-07-13				First Sale Yet to Occur
	Amendment

8. Duration of Offering

Does the Issuer intend this offering to last more than one year? Yes X No

9. Type(s) of Securities Offered (select all that apply)

X	Equity		Pooled Investment Fund Interests
	Debt		Tenant-in-Common Securities
X	Option, Warrant or Other Right to Acquire Another Security		Mineral Property Securities
X	Security to be Acquired Upon Exercise of Option, Warrant or Other Right to Acquire Security		Other (describe)

10. Business Combination Transaction

Is this offering being made in connection with a business combination transaction, such as a merger, acquisition or exchange offer? Yes X No

Clarification of Response (if Necessary):

11. Minimum Investment

Minimum investment accepted from any outside investor $0 USD

12. Sales Compensation

Recipient	Recipient CRD Number X None
(Associated) Broker or Dealer X None	(Associated) Broker or Dealer CRD Number X None
Street Address 1	Street Address 2
City	State/Province/Country	ZIP/Postal Code
State(s) of Solicitation (select all that apply) Check "All States" or check individual States All States	Foreign/non-US

13. Offering and Sales Amounts

Total Offering Amount	$49,999,927	USD	or Indefinite
Total Amount Sold	$49,999,927	USD
Total Remaining to be Sold	$0	USD	or Indefinite

Clarification of Response (if Necessary):

14. Investors

Select if securities in the offering have been or may be sold to persons who do not qualify as accredited investors, and enter the number of such non-accredited investors who already have invested in the offering.

Regardless of whether securities in the offering have been or may be sold to persons who do not qualify as accredited investors, enter the total number of investors who already have invested in the offering:

4

15. Sales Commissions & Finder's Fees Expenses

Provide separately the amounts of sales commissions and finders fees expenses, if any. If the amount of an expenditure is not known, provide an estimate and check the box next to the amount.

Sales Commissions	$0	USD	Estimate
Finders' Fees	$0	USD	Estimate

Clarification of Response (if Necessary):

16. Use of Proceeds

Provide the amount of the gross proceeds of the offering that has been or is proposed to be used for payments to any of the persons required to be named as executive officers, directors or promoters in response to Item 3 above. If the amount is unknown, provide an estimate and check the box next to the amount.

$0

USD

Estimate

Clarification of Response (if Necessary):

Signature and Submission

Please verify the information you have entered and review the Terms of Submission below before signing and clicking SUBMIT below to file this notice.

Terms of Submission

In submitting this notice, each issuer named above is:

• Notifying the SEC and/or each State in which this notice is filed of the offering of securities described and undertaking to furnish them, upon written request, in the accordance with applicable law, the information furnished to offerees.*

• Irrevocably appointing each of the Secretary of the SEC and, the Securities Administrator or other legally designated officer of the State in which the issuer maintains its principal place of business and any State in which this notice is filed, as its agents for service of process, and agreeing that these persons may accept service on its behalf, of any notice, process or pleading, and further agreeing that such service may be made by registered or certified mail, in any Federal or state action, administrative proceeding, or arbitration brought against the issuer in any place subject to the jurisdiction of the United States, if the action, proceeding or arbitration (a) arises out of any activity in connection with the offering of securities that is the subject of this notice, and (b) is founded, directly or indirectly, upon the provisions of: (i) the Securities Act of 1933, the Securities Exchange Act of 1934, the Trust Indenture Act of 1939, the Investment Company Act of 1940, or the Investment Advisers Act of 1940, or any rule or regulation under any of these statutes, or (ii) the laws of the State in which the issuer maintains its principal place of business or any State in which this notice is filed.

• Certifying that, if the issuer is claiming a Regulation D exemption for the offering, the issuer is not disqualified from relying on Rule 504 or Rule 506 for one of the reasons stated in Rule 504(b)(3) or Rule 506(d).

Each Issuer identified above has read this notice, knows the contents to be true, and has duly caused this notice to be signed on its behalf by the undersigned duly authorized person.

For signature, type in the signer's name or other letters or characters adopted or authorized as the signer's signature.

Issuer	Signature	Name of Signer	Title	Date
Cue Biopharma, Inc.	/s/Sumita Ray, JD	Sumita Ray, JD	Chief Legal & Compliance Officer	2026-07-22

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.

* This undertaking does not affect any limits Section 102(a) of the National Securities Markets Improvement Act of 1996 ("NSMIA") [Pub. L. No. 104-290, 110 Stat. 3416 (Oct. 11, 1996)] imposes on the ability of States to require information. As a result, if the securities that are the subject of this Form D are "covered securities" for purposes of NSMIA, whether in all instances or due to the nature of the offering that is the subject of this Form D, States cannot routinely require offering materials under this undertaking or otherwise and can require offering materials only to the extent NSMIA permits them to do so under NSMIA's preservation of their anti-fraud authority.