Alpha Tau director reveals initial share and option stakes

Alpha Tau Medical Ltd. director Alon Ruth filed an initial ownership report detailing his equity position in the company.

Rhea-AI Filing Summary

Alpha Tau Medical Ltd. director Alon Ruth filed an initial ownership report detailing his equity position in the company. He directly holds 29,367 ordinary shares, 4,680 restricted share units that vest in full upon the earlier of one year from March 9, 2026 or the next annual shareholder meeting, and multiple option grants over ordinary shares with exercise prices between $2.98 and $10.92. According to the footnotes, certain options are already fully vested, while others vest on the same future schedule as the restricted share units, all subject to his continued service.

Insider Trade Summary

8 transactions reported

Mixed 8 txns

Insider Alon Ruth

Role Director

Type	Security	Shares	Price	Value
holding	Options	--	--	--
holding	Options	--	--	--
holding	Options	--	--	--
holding	Options	--	--	--
holding	Options	--	--	--
holding	Options	--	--	--
holding	Ordinary Shares	--	--	--
holding	Restricted Share Units	--	--	--

Holdings After Transaction: Options — 149,272 contracts (Direct); Ordinary Shares — 29,367 shares (Direct); Restricted Share Units — 4,680 shares (Direct)

Footnotes (3)

1. F1. These ordinary shares represent restricted share units, which will vest in their entirety upon the earlier of: one year commencing from March 9, 2026 or the next Annual General Meeting of Shareholders, subject to the Reporting Person's continued service.
2. F2. These are options to acquire ordinary shares, which have fully vested as of the date hereof.
3. F3. These are options to acquire ordinary shares, which options will vest in their entirety upon the earlier of: one year commencing from March 9, 2026 or the next Annual General Meeting of Shareholders, subject to the Reporting Person's continued service.

FAQ

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

What does the Alpha Tau Medical (DRTS) Form 3 filing for Alon Ruth show?

The Form 3 shows Alon Ruth’s initial ownership in Alpha Tau Medical. He holds ordinary shares, restricted share units vesting around March 9, 2026, and several option grants with exercise prices between $2.98 and $10.92, reflecting his equity-based alignment with the company.

How many Alpha Tau Medical (DRTS) ordinary shares does Alon Ruth hold directly?

Alon Ruth directly holds 29,367 ordinary shares of Alpha Tau Medical. These are separate from his options and restricted share units and represent his current direct equity stake as reported in the Form 3 ownership statement filed with the SEC.

What restricted share units does Alon Ruth report in Alpha Tau Medical (DRTS)?

He reports 4,680 restricted share units, which will vest in full on the earlier of one year from March 9, 2026 or the next annual shareholder meeting, assuming he continues serving the company under the terms described in the filing footnote.

What option grants over Alpha Tau Medical (DRTS) shares does Alon Ruth hold?

Alon Ruth holds several options to acquire ordinary shares with exercise prices ranging from $2.98 to $10.92. Some option grants are already fully vested, while others will vest in full on the same future schedule as his restricted share units.

Are Alon Ruth’s Alpha Tau Medical (DRTS) equity awards fully vested?

The filing states that some options are fully vested, while other options and restricted share units vest later. Unvested awards will vest in full upon the earlier of one year from March 9, 2026 or the next annual shareholder meeting, subject to continued service.

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

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Accepted by SEC EDGAR 03/18/2026 - 07:00 PM Learn about SEC filing dates

SEC Form 3

FORM 3

UNITED 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^*

Alon Ruth

(Last) (First) (Middle)

C/O ALPHA TAU MEDICAL

PO BOX 45044

(Street)

JERUSALEM 9777605

(City) (State) (Zip)

ISRAEL

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Alpha Tau Medical Ltd. [ DRTS ]

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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

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

X	Form 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 Shares	29,367	D
Restricted Share Units(1)	4,680	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 Exercisable	Expiration Date	Title	Amount or Number of Shares
Options(2)	04/21/2022	03/21/2032	Ordinary Shares	8,945	$10.92	D
Options(2)	04/21/2022	03/21/2032	Ordinary Shares	10,178	$7.19	D
Options(2)	11/01/2023	03/09/2033	Ordinary Shares	46,905	$3.28	D
Options(2)	12/17/2024	03/07/2034	Ordinary Shares	43,257	$2.98	D
Options(2)	06/17/2025	01/22/2035	Ordinary Shares	24,460	$4.05	D
Options(3)	(3)	03/09/2036	Ordinary Shares	15,527	$6.41	D

Explanation of Responses:

1. These ordinary shares represent restricted share units, which will vest in their entirety upon the earlier of: one year commencing from March 9, 2026 or the next Annual General Meeting of Shareholders, subject to the Reporting Person's continued service.

2. These are options to acquire ordinary shares, which have fully vested as of the date hereof.

3. These are options to acquire ordinary shares, which options will vest in their entirety upon the earlier of: one year commencing from March 9, 2026 or the next Annual General Meeting of Shareholders, subject to the Reporting Person's continued service.

	/s/ Ruth Alon	03/18/2026
	** 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 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)