IMDX VP’s RSUs Vest; Shares Withheld for Taxes

Insight Molecular Diagnostics Inc. reported that VP, Controller and Treasurer Liu James Yang had restricted stock units vest into 6,289 shares of common stock on March 26, 2026 under the 2018 Equity Incentive Plan.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Insight Molecular Diagnostics Inc. reported that VP, Controller and Treasurer Liu James Yang had restricted stock units vest into 6,289 shares of common stock on March 26, 2026 under the 2018 Equity Incentive Plan. The company withheld 2,578 shares at $4.11 per share to cover tax obligations, and no shares were sold. After these transactions, Yang directly holds 3,711 shares of common stock and 12,578 restricted stock units, with the remaining units scheduled to vest over the next two years, subject to continued service.

Insider Trade Summary

6,289 shares exercised/converted

Exercise 3 txns

Insider Liu James Yang

Role VP ACCT, Cntlr, Treasurer, PAO

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	6,289	$0.00	$0.00
Exercise	Common Stock	6,289	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	2,578	$4.11	$11K

Holdings After Transaction: Restricted Stock Units — 12,578 contracts (Direct); Common Stock — 3,711 shares (Direct)

Footnotes (3)

F1. Represents vesting of restricted stock units ("RSUs") issued pursuant to the Company's 2018 Equity Incentive Plan. Each RSU represents the right to receive, at settlement, one share of common stock. The RSUs vested on the one-year anniversary of the effective date of grant.
F2. The reported disposition reflects shares withheld by the Company to cover required tax withholding obligations upon the vesting of the RSUs. The reporting person did not sell any shares.
F3. Each RSU has a value equal to one share of common stock. 33 and 1/3% of the RSUs vested on March 26, 2026 and the remaining 66 and 2/3% will vest in equal installments on each of the second- and third-year anniversaries, respectively, of the effective date of grant subject to continuous service through the applicable vesting date.

Key Figures

RSUs vested: 6,289 units Shares withheld for taxes: 2,578 shares Withholding price: $4.11 per share +2 more

5 metrics

RSUs vested 6,289 units Restricted stock units vested on March 26, 2026

Shares withheld for taxes 2,578 shares Common shares withheld at $4.11 to cover tax obligations

Withholding price $4.11 per share Value used for tax-withholding share disposition

Common shares held after 3,711 shares Direct common stock holdings after March 26, 2026 transactions

RSUs remaining 12,578 units Restricted stock units remaining after 6,289 vested

Key Terms

Restricted Stock Units, 2018 Equity Incentive Plan, tax withholding obligations, continuous service

4 terms

Restricted Stock Units financial

"Represents vesting of restricted stock units ("RSUs") issued pursuant"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2018 Equity Incentive Plan financial

"RSUs issued pursuant to the Company's 2018 Equity Incentive Plan."

tax withholding obligations financial

"reflects shares withheld by the Company to cover required tax withholding obligations"

continuous service financial

"will vest in equal installments ... subject to continuous service through"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did IMDX officer Liu James Yang report?

Liu James Yang reported RSUs vesting into 6,289 shares of common stock on March 26, 2026. The vesting came from awards under Insight Molecular Diagnostics’ 2018 Equity Incentive Plan and reflects routine equity compensation rather than an open-market stock purchase or sale.

Did IMDX’s Liu James Yang sell any shares in this Form 4 filing?

No, the filing states Yang did not sell any shares. Instead, 2,578 shares of common stock were withheld by Insight Molecular Diagnostics to satisfy required tax withholding obligations triggered by the vesting of restricted stock units.

How many IMDX shares does Liu James Yang hold after the reported transactions?

Following the March 26, 2026 transactions, Yang directly holds 3,711 shares of Insight Molecular Diagnostics common stock. This reflects the net position after 6,289 shares were issued from vesting RSUs and 2,578 shares were withheld to cover tax obligations.

What is the vesting schedule for Liu James Yang’s IMDX restricted stock units?

The RSUs vest 33⅓% on March 26, 2026, with the remaining 66⅔% vesting in equal installments on the second- and third-year anniversaries of the grant’s effective date. Vesting is conditioned on Yang’s continuous service with Insight Molecular Diagnostics.

How many IMDX restricted stock units remain after this vesting event?

After 6,289 RSUs vested and converted into common shares, 12,578 restricted stock units remain credited to Yang. According to the filing, these remaining RSUs are scheduled to vest in two future annual installments, subject to continued service with the company.

At what price were IMDX shares withheld for taxes in this Form 4?

The company withheld 2,578 shares of Insight Molecular Diagnostics common stock at $4.11 per share. This withholding covered required tax obligations associated with the vesting of restricted stock units; it was not an open-market sale by Liu James Yang.

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

Form 4 Insider Transactions: What Each Field Means →

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Accepted by SEC EDGAR 03/30/2026 - 05:29 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Liu James Yang

(Last)

(First)

(Middle)

C/O INSIGHT MOLECULAR DIAGNOSTICS INC.

2 INTERNATIONAL PLAZA, SUITE 510

(Street)

NASHVILLE

TENNESSEE

37217

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Insight Molecular Diagnostics Inc. [ IMDX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	VP ACCT, Cntlr, Treasurer, PAO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	03/26/2026		M		6,289	A	⁽¹⁾	6,289	D
Common Stock	03/26/2026		F		2,578⁽²⁾	D	$4.11	3,711	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽³⁾	03/26/2026		M			6,289	⁽³⁾	⁽³⁾	Common Stock	6,289	$0	12,578	D

Explanation of Responses:

1. Represents vesting of restricted stock units ("RSUs") issued pursuant to the Company's 2018 Equity Incentive Plan. Each RSU represents the right to receive, at settlement, one share of common stock. The RSUs vested on the one-year anniversary of the effective date of grant.

2. The reported disposition reflects shares withheld by the Company to cover required tax withholding obligations upon the vesting of the RSUs. The reporting person did not sell any shares.

3. Each RSU has a value equal to one share of common stock. 33 and 1/3% of the RSUs vested on March 26, 2026 and the remaining 66 and 2/3% will vest in equal installments on each of the second- and third-year anniversaries, respectively, of the effective date of grant subject to continuous service through the applicable vesting date.

	/s/ James Liu	03/30/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

IMDX VP’s RSUs Vest; Shares Withheld for Taxes

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