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  4. [Form 3] Polyrizon Ltd. Initial Statement of Beneficial Ownership

Adler Oz discloses Polyrizon (PLRZ) restricted share holdings and vesting

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
3

Rhea-AI Filing Summary

Polyrizon Ltd. director Adler Oz has filed an initial ownership report showing holdings of the company’s ordinary shares, mainly in the form of restricted stock awards. One grant covers 100 ordinary shares, of which 66 are vested and 34 will vest in eight equal monthly installments on a quarterly basis beginning on March 30, 2026, subject to continued service. A second grant covers 23,042 ordinary shares, with 3,292 already vested and 19,750 scheduled to vest in six equal quarterly installments beginning on March 31, 2026. Certain shares are held through a trustee structure designed to qualify for tax benefits under Section 102 of the Israeli Tax Ordinance.

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Insider Adler Oz
Role Director
Type Security Shares Price Value
holding Ordinary Shares -- -- --
holding Ordinary Shares -- -- --
Holdings After Transaction: Ordinary Shares — 100 shares (Direct)
Footnotes (1)
  1. These ordinary shares represent restricted ordinary shares, of which (1) 66 ordinary shares are vested and (2) 34 restricted ordinary shares vest in 8 equal monthly installments on a quarterly basis beginning on March 30, 2026, subject to the Reporting Person's continued service. These ordinary shares represent restricted ordinary shares, of which (1) 3,292 ordinary shares are vested and (2) 19,750 restricted ordinary shares vest in 6 equal quarterly installments on a quarterly basis beginning on March 31, 2026, subject to the Reporting Person's continued service. To qualify for certain tax benefits under Section 102 of the Israeli Tax Ordinance, securities issued to an employee in connection with the Polyrizon Ltd. Amended and Restated Equity Incentive Plan must be registered in the name of a trustee.
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SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:3235-0104
Estimated average burden
hours per response:0.5
1. Name and Address of Reporting Person*
Adler Oz
(Last)(First)(Middle)
C/O POLYRIZON LTD.
9 HAPNINA STREET
(Street)
RAANANA4321546
(City)(State)(Zip)
UNITED STATES
(Country)		2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026		3. Issuer Name and Ticker or Trading Symbol
Polyrizon Ltd. [ PLRZ ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Ordinary Shares100(1)(3)D
Ordinary Shares23,042(2)(3)D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. These ordinary shares represent restricted ordinary shares, of which (1) 66 ordinary shares are vested and (2) 34 restricted ordinary shares vest in 8 equal monthly installments on a quarterly basis beginning on March 30, 2026, subject to the Reporting Person's continued service.
2. These ordinary shares represent restricted ordinary shares, of which (1) 3,292 ordinary shares are vested and (2) 19,750 restricted ordinary shares vest in 6 equal quarterly installments on a quarterly basis beginning on March 31, 2026, subject to the Reporting Person's continued service.
3. To qualify for certain tax benefits under Section 102 of the Israeli Tax Ordinance, securities issued to an employee in connection with the Polyrizon Ltd. Amended and Restated Equity Incentive Plan must be registered in the name of a trustee.
/s/ Oz Adler03/18/2026
** 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 5 (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 3: SEC 1473 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What does Adler Oz’s Form 3 filing for Polyrizon (PLRZ) show?

The filing shows Adler Oz’s initial ownership of Polyrizon Ltd. ordinary shares as a director. It details restricted share grants, how many shares are vested, and how remaining shares will vest over time, establishing his reported equity stake at the company.

How many Polyrizon (PLRZ) shares are in Adler Oz’s restricted grants?

Adler Oz reports two restricted ordinary share grants at Polyrizon: one for 100 shares and another for 23,042 shares. The filing specifies how many shares from each grant are currently vested and how the unvested portions will vest in scheduled installments.

What are the vesting schedules for Adler Oz’s Polyrizon (PLRZ) restricted shares?

One grant vests 34 restricted shares in eight equal monthly installments on a quarterly basis starting March 30, 2026. Another vests 19,750 restricted shares in six equal quarterly installments starting March 31, 2026, in each case subject to continued service.

How many of Adler Oz’s restricted Polyrizon (PLRZ) shares are already vested?

The Form 3 shows 66 vested shares from a 100-share grant and 3,292 vested shares from a 23,042-share grant. The rest of each grant consists of restricted shares scheduled to vest in future installments if service conditions are met.

Why are some Polyrizon (PLRZ) shares held through a trustee for Adler Oz?

The filing explains that, to qualify for certain tax benefits under Section 102 of the Israeli Tax Ordinance, securities issued under the Polyrizon Ltd. Amended and Restated Equity Incentive Plan must be registered in the name of a trustee rather than directly to the employee.

Does Adler Oz’s Form 3 for Polyrizon (PLRZ) report any share purchases or sales?

The entry is categorized as holdings with transaction codes showing no buy or sell activity. It functions as an initial statement of beneficial ownership, listing existing restricted share grants and vesting terms rather than reporting new market purchases or sales.