iSpecimen completes Milestone 3, pays $700,000

iSpecimen Inc. completed Milestone 3 in its digital transformation program powered by SalesStack Solutions on July 9, 2026.

Rhea-AI Filing Summary

iSpecimen Inc. completed Milestone 3 in its digital transformation program powered by SalesStack Solutions on July 9, 2026. Under Section 3.1 of the Definitive Software Purchase and Services Agreement with Sales Stack Solutions Corp., the company made a $700,000 payment upon completion.

Milestone 3 delivers additional marketplace features, a broader geographic rollout, and deeper integrations with partner ecosystems, building on the system integration and marketplace activation delivered in Milestone 2. The company had previously disclosed the completion of Milestones 1 and 2 under the same agreement.

8-K Event Classification

Item 8.01 — Other Events

1 item

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Key Figures

Milestone 3 payment: $700,000 Milestone completed: 3 Commission File Number: 001-40501

3 metrics

Milestone 3 payment $700,000 Payment owed upon completion of Milestone 3 under the SalesStack Agreement

Milestone completed 3 Third milestone completed in the digital transformation program powered by SalesStack Solutions

Commission File Number 001-40501 SEC registration reference for iSpecimen Inc.

Key Terms

digital transformation program, Definitive Software Purchase and Services Agreement, marketplace activation, partner ecosystems

4 terms

digital transformation program technical

"completed Milestone 3 in the Company’s digital transformation program powered by SalesStack"

Definitive Software Purchase and Services Agreement regulatory

"Pursuant to Section 3.1 of the Definitive Software Purchase and Services Agreement"

marketplace activation technical

"building upon the system integration and marketplace activation achieved in Milestone 2"

partner ecosystems technical

"deeper integrations with partner ecosystems, building upon the system integration"

FAQ

What did iSpecimen (ISPC) report on July 9, 2026?

iSpecimen reported completing Milestone 3 in its digital transformation program powered by SalesStack Solutions. Completion of this milestone triggered a $700,000 payment under the Definitive Software Purchase and Services Agreement and added new marketplace, geographic, and integration capabilities.

How much did iSpecimen (ISPC) pay upon completing Milestone 3?

Upon completing Milestone 3, iSpecimen made a $700,000 payment. This payment was required by Section 3.1 of the Definitive Software Purchase and Services Agreement with Sales Stack Solutions Corp., which ties specific cash payments to successful completion of defined project milestones.

What does Milestone 3 include in iSpecimen’s (ISPC) digital transformation program?

Milestone 3 delivers additional marketplace features, a broader geographic rollout, and deeper integrations with partner ecosystems. These enhancements build on the system integration and marketplace activation achieved in Milestone 2 under the SalesStack-powered digital transformation program.

Who is SalesStack Solutions in relation to iSpecimen (ISPC)?

Sales Stack Solutions Corp. provides the software and services for iSpecimen’s digital transformation program under a Definitive Software Purchase and Services Agreement. Milestone-based payments, including the $700,000 tied to Milestone 3, are made to SalesStack as each stage is completed.

How does Milestone 3 relate to earlier milestones for iSpecimen (ISPC)?

Milestone 3 builds on earlier stages, extending marketplace capabilities beyond the system integration and marketplace activation achieved in Milestone 2. iSpecimen previously disclosed completion of Milestone 1 and Milestone 2 in earlier reports dated August 21, 2025 and February 6, 2026.

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Available on EDGAR 07/14/2026 - 05:00 PM Accepted by SEC EDGAR 07/14/2026 - 05:00 PM Learn about SEC filing dates

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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): July 9, 2026

iSpecimen Inc.

(Exact name of registrant as specified in its charter)

Delaware		001-40501		27-0480143
(State or other jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification No.)

8 Cabot Road, Suite 1800
Woburn, MA 01801

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (781) 301-6700

Not Applicable

(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, par value $0.0001 per share		ISPC		The Nasdaq Stock Market LLC

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 8.01 Other Events.

On July 9, 2026, iSpecimen Inc. (the “Company”) completed Milestone 3 in the Company’s digital transformation program powered by SalesStack Solutions. Pursuant to Section 3.1 of the Definitive Software Purchase and Services Agreement between the Company and Sales Stack Solutions Corp. (the “SalesStack Agreement”), filed as Exhibit 10.46 to the Company’s Registration Statement on Form S-1/A filed on June 11, 2025, the Company made a payment of $700,000 upon completion of Milestone 3. This milestone delivers additional marketplace features, broader geographic rollout, and deeper integrations with partner ecosystems, building upon the system integration and marketplace activation achieved in Milestone 2. The Company previously disclosed the completion of Milestone 1 and Milestone 2 under the SalesStack Agreement on Current Reports on Form 8-K filed on August 21, 2025 and February 6, 2026, respectively. 

1

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.

Dated: July 14, 2026

	iSPECIMEN INC.
	By:	/s/ Katharyn Field
		Name:	Katharyn Field
		Title:	Chief Executive Officer

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Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL SCHEMA FILE 2.9 KB
• EX-101 XBRL LABEL FILE 33.4 KB
• EX-101 XBRL PRESENTATION FILE 21.8 KB