Alpha Tau director reports initial holdings

Alpha Tau Medical Ltd. director David Mark Milch filed an initial Form 3 reporting his beneficial ownership in the company.

Rhea-AI Filing Summary

Alpha Tau Medical Ltd. director David Mark Milch filed an initial Form 3 reporting his beneficial ownership in the company. He holds several tranches of options to acquire ordinary shares, including 8,945 shares at an exercise price of $10.9200 and 10,178 shares at $7.1900, along with larger grants at lower prices that expire between 2032 and 2036.

He also reports 49,000 warrants to acquire ordinary shares held indirectly through Healthcare Capital Sponsor LLC, 29,367 ordinary shares held directly, 88,743 ordinary shares held indirectly through the same entity, and 4,680 restricted share units that will vest in full upon the earlier of one year from March 9, 2026 or the next Annual General Meeting of Shareholders, subject to his continued service.

Insider Trade Summary

10 transactions reported

Mixed 10 txns

Insider MILCH DAVID MARK

Role Director

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

Holdings After Transaction: Options — 149,272 contracts (Direct); Warrants — 49,000 contracts (Indirect, Held through entity under his control, Healthcare Capital Sponsor LLC); Ordinary Shares — 29,367 shares (Direct); Ordinary Shares — 88,743 shares (Indirect, Held through entity under his control, Healthcare Capital Sponsor LLC); Restricted Share Units — 4,680 shares (Direct)

Footnotes (4)

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.
4. F4. these are warrants to acquire ordinary shares, which have fully vested as of the date hereof.

FAQ

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

What does Alpha Tau Medical (DRTS) director David Mark Milch report on his Form 3?

David Mark Milch reports his initial beneficial ownership in Alpha Tau Medical, including options, warrants, ordinary shares, and restricted share units. The filing details multiple option grants, direct and indirect share holdings, and equity awards subject to vesting based on future service conditions.

How many Alpha Tau Medical (DRTS) ordinary shares does David Mark Milch hold directly and indirectly?

David Mark Milch reports 29,367 ordinary shares held directly and 88,743 ordinary shares held indirectly through Healthcare Capital Sponsor LLC. These positions reflect his current beneficial ownership in the company’s ordinary shares, separate from additional rights represented by options, warrants, and restricted share units.

What stock options in Alpha Tau Medical (DRTS) are reported by David Mark Milch?

He reports multiple option grants to acquire ordinary shares, including 8,945 shares at $10.9200, 10,178 shares at $7.1900, 46,905 shares at $3.2800, 43,257 shares at $2.9800, 24,460 shares at $4.0500, and 15,527 shares at $6.4100, with expirations between 2032 and 2036.

What warrants linked to Alpha Tau Medical (DRTS) does David Mark Milch report?

The Form 3 shows 49,000 warrants to acquire Alpha Tau Medical ordinary shares with an exercise price of $11.5000, expiring on March 7, 2027. These warrants are held indirectly through Healthcare Capital Sponsor LLC, an entity under his control, and are fully vested as of the filing date.

What restricted share units in Alpha Tau Medical (DRTS) are disclosed for David Mark Milch?

He reports 4,680 restricted share units representing ordinary shares. According to the filing, these units will vest in full upon the earlier of one year from March 9, 2026 or the next Annual General Meeting of Shareholders, contingent on his continued service as a director.

Does the Form 3 for Alpha Tau Medical (DRTS) show any insider buying or selling by David Mark Milch?

No buy or sell transactions are reported; the Form 3 lists existing holdings. It describes his current beneficial ownership in shares, options, warrants, and restricted share units, rather than recording new purchases or sales of Alpha Tau Medical securities on the reported date.

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

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Accepted by SEC EDGAR 03/18/2026 - 07:01 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^*

MILCH DAVID MARK

(Last) (First) (Middle)

C/O ALPHA TAU MEDICAL

PO BOX 45044

(Street)

JERUSALEM 9777605

(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
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
Ordinary Shares	88,743	I	Held through entity under his control, Healthcare Capital Sponsor LLC
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)	04/07/2022	03/21/2032	Ordinary Shares	8,945	$10.92	D
Options(2)	04/07/2022	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
Warrants(4)	(4)	03/07/2027	Ordinary Shares	49,000	$11.5	I	Held through entity under his control, Healthcare Capital Sponsor LLC

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.

4. these are warrants to acquire ordinary shares, which have fully vested as of the date hereof.

	/s/ David M. Milch	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)