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Immix Biopharma (IMMX) board member receives new RSU and stock option awards

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Hsu Jason reported acquisition or exercise transactions in this Form 4 filing.

Immix Biopharma, Inc. director Jason Hsu reported new equity compensation. He received 6,250 restricted stock units that vest in full on the earlier of one year from grant or the company’s 2027 annual meeting, subject to continued service. He was also granted a stock option for 12,500 shares at $8.78 per share, vesting in equal monthly installments over 12 months or, if earlier, on the 2027 annual meeting date. After these awards, he holds 899,250 common shares directly, plus additional indirect holdings through VERITAS LIBERABIT VOS, LLC and Signature Collection Properties, LLC, where he has voting and disposition rights but disclaims beneficial ownership except for his pecuniary interest.

Positive

  • None.

Negative

  • None.
Insider Hsu Jason
Role null
Type Security Shares Price Value
Grant/Award Stock Option (Right to Buy) 12,500 $0.00 --
Grant/Award Common Stock 6,250 $0.00 --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Stock Option (Right to Buy) — 12,500 shares (Direct, null); Common Stock — 899,250 shares (Direct, null); Common Stock — 3,915,913 shares (Indirect, See Footnote)
Footnotes (1)
  1. The Reporting Person was granted 6,250 restricted stock units ("RSUs") pursuant to the Issuer's 2021 Equity Incentive Plan, which RSUs will vest in full on the earlier of (i) the one-year anniversary of the date of grant, and (ii) the date that the Issuer's 2027 annual meeting of stockholders (the "2027 Annual Meeting") is held, subject to the Reporting Person's continued service with the Issuer. The Reporting Person is the sole member of VERITAS LIBERABIT VOS, LLC and in such capacity has the right to vote and dispose of the securities held by such entity. The Reporting Person disclaims beneficial ownership of the securities held by VERITAS LIBERABIT VOS, LLC, except to the extent of his pecuniary interest therein. The Reporting Person is the sole member of Signature Collection Properties, LLC and in such capacity has the right to vote and dispose of the securities held by such entity. The Reporting Person disclaims beneficial ownership of the securities held by Signature Collection Properties, LLC, except to the extent of his pecuniary interest therein. The stock option will vest in substantially equal monthly installments over the 12 months following the date of grant (or, in the event the 2027 Annual Meeting occurs prior to the first anniversary of the date of grant, any remaining unvested portion of the stock option will vest on the date of such 2027 Annual Meeting), subject to the Reporting Person's continued service on the Issuer's Board through the applicable vesting date.
RSU grant 6,250 units Restricted stock units granted under 2021 Equity Incentive Plan
Stock option grant 12,500 options Stock option to buy common stock
Option exercise price $8.78/share Conversion or exercise price for 12,500 options
Option expiration May 22, 2036 Expiration date of stock option grant
Direct shares after grant 899,250 shares Total common shares held directly following transactions
Indirect holding VERITAS LIBERABIT VOS, LLC 50,000 shares Common stock held indirectly through VERITAS LIBERABIT VOS, LLC
Indirect holding Signature Collection Properties, LLC 3,915,913 shares Common stock held indirectly through Signature Collection Properties, LLC
restricted stock units ("RSUs") financial
"The Reporting Person was granted 6,250 restricted stock units ("RSUs") pursuant to the Issuer's 2021 Equity Incentive Plan"
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
2021 Equity Incentive Plan financial
"granted 6,250 restricted stock units ("RSUs") pursuant to the Issuer's 2021 Equity Incentive Plan"
pecuniary interest financial
"disclaims beneficial ownership of the securities held by VERITAS LIBERABIT VOS, LLC, except to the extent of his pecuniary interest therein"
stock option financial
"The stock option will vest in substantially equal monthly installments over the 12 months"
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
beneficial ownership financial
"The Reporting Person disclaims beneficial ownership of the securities held by Signature Collection Properties, LLC"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
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SEC Form 4
FORM 4UNITED 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*
Hsu Jason

(Last)(First)(Middle)
C/O IMMIX BIOPHARMA, INC.
11400 WEST OLYMPIC BLVD., SUITE 200

(Street)
LOS ANGELES CALIFORNIA 90064

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Immix Biopharma, Inc. [ IMMX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock05/22/2026A6,250(1)A$0899,250D
Common Stock3,915,913ISee Footnote(2)
Common Stock50,000ISee Footnote(3)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$8.7805/22/2026A12,500 (4)05/22/2036Common Stock12,500$012,500D
Explanation of Responses:
1. The Reporting Person was granted 6,250 restricted stock units ("RSUs") pursuant to the Issuer's 2021 Equity Incentive Plan, which RSUs will vest in full on the earlier of (i) the one-year anniversary of the date of grant, and (ii) the date that the Issuer's 2027 annual meeting of stockholders (the "2027 Annual Meeting") is held, subject to the Reporting Person's continued service with the Issuer.
2. The Reporting Person is the sole member of VERITAS LIBERABIT VOS, LLC and in such capacity has the right to vote and dispose of the securities held by such entity. The Reporting Person disclaims beneficial ownership of the securities held by VERITAS LIBERABIT VOS, LLC, except to the extent of his pecuniary interest therein.
3. The Reporting Person is the sole member of Signature Collection Properties, LLC and in such capacity has the right to vote and dispose of the securities held by such entity. The Reporting Person disclaims beneficial ownership of the securities held by Signature Collection Properties, LLC, except to the extent of his pecuniary interest therein.
4. The stock option will vest in substantially equal monthly installments over the 12 months following the date of grant (or, in the event the 2027 Annual Meeting occurs prior to the first anniversary of the date of grant, any remaining unvested portion of the stock option will vest on the date of such 2027 Annual Meeting), subject to the Reporting Person's continued service on the Issuer's Board through the applicable vesting date.
/s/ Ilya Rachman as Attorney-In-Fact for Jason Hsu05/29/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did Jason Hsu report for Immix Biopharma (IMMX)?

Jason Hsu reported equity compensation grants, not open-market trades. He received 6,250 restricted stock units and a stock option for 12,500 shares, both tied to his service on Immix Biopharma’s board and subject to specific vesting conditions and timelines.

How many Immix Biopharma RSUs did Jason Hsu receive and when do they vest?

Jason Hsu received 6,250 restricted stock units. They vest in full on the earlier of one year from the grant date or the company’s 2027 annual stockholders’ meeting, provided he continues serving Immix Biopharma through the applicable vesting date.

What are the terms of Jason Hsu’s new stock option in Immix Biopharma (IMMX)?

He was granted a stock option for 12,500 shares of Immix Biopharma common stock at an exercise price of $8.78 per share. The option expires on May 22, 2036, and vests in substantially equal monthly installments over 12 months or at the 2027 annual meeting, whichever occurs first.

How many Immix Biopharma shares does Jason Hsu hold after these grants?

Following the reported grants, Jason Hsu holds 899,250 shares of Immix Biopharma common stock directly. The filing also lists indirect holdings of 50,000 and 3,915,913 shares through VERITAS LIBERABIT VOS, LLC and Signature Collection Properties, LLC, where he has voting and disposition rights.

How do Jason Hsu’s indirect Immix Biopharma holdings through LLCs work?

The filing states Jason Hsu is the sole member of VERITAS LIBERABIT VOS, LLC and Signature Collection Properties, LLC, with voting and disposition power over their Immix Biopharma shares. He disclaims beneficial ownership of those securities except to the extent of his pecuniary interest in the entities.

Are Jason Hsu’s new Immix Biopharma awards tied to continued board service?

Yes. The 6,250 RSUs vest only if he continues service with Immix Biopharma through the vesting date. The 12,500-share stock option also requires his continued service on the board through the applicable monthly vesting dates or the 2027 annual meeting, whichever triggers remaining vesting.