Cellebrite (CLBT) executive Holly B. Windham reports 95,328 RSUs in Form 3

Rhea-AI Filing Summary

Cellebrite DI Ltd. executive Holly B. Windham has filed an initial statement of beneficial ownership, reporting direct holdings of 95,328 Ordinary Shares. These are represented entirely by restricted share units granted on two dates.

One grant covers 47,938 RSUs awarded on November 5, 2025, with 11,986 vesting on the first anniversary and 2,996 vesting every three months through November 5, 2029. A second grant covers 47,390 RSUs awarded on February 10, 2026, with 11,858 vesting on the first anniversary and 2,961 vesting every three months through February 10, 2030. Each RSU converts into one Ordinary Share upon settlement, so the filing describes current and future equity-based compensation rather than a new market transaction.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Windham Holly B.

Role See Remarks

Type	Security	Shares	Price	Value
holding	Ordinary shares, par value NIS 0.00001 ("Ordinary Shares")	--	--	--

Holdings After Transaction: Ordinary shares, par value NIS 0.00001 ("Ordinary Shares") — 95,328 shares (Direct)

Footnotes (1)

1. Includes 47,938 Ordinary Shares that are represented by restricted share units ("RSUs") that were granted on November 5, 2025 and vest as follows: 11,986 vest on the first anniversary of the grant date and 2,996 vest every three months thereafter through November 5, 2029. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer upon settlement. Includes 47,390 Ordinary Shares that are represented by RSUs that were granted on February 10, 2026 and vest as follows: 11,858 vest on the first anniversary of the grant date and 2,961 vest every three months thereafter through February 10, 2030.

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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^*

Windham Holly B.

(Last) (First) (Middle)

94 SHLOMO SHMELZER ROAD

(Street)

PETAH TIKVA 4970602

(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
Cellebrite DI Ltd. [ CLBT ]

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)

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

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, par value NIS 0.00001 ("Ordinary Shares")	95,328(1)(2)	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

Explanation of Responses:

1. Includes 47,938 Ordinary Shares that are represented by restricted share units ("RSUs") that were granted on November 5, 2025 and vest as follows: 11,986 vest on the first anniversary of the grant date and 2,996 vest every three months thereafter through November 5, 2029. Each RSU represents a contingent right to receive one Ordinary Share of the Issuer upon settlement.

2. Includes 47,390 Ordinary Shares that are represented by RSUs that were granted on February 10, 2026 and vest as follows: 11,858 vest on the first anniversary of the grant date and 2,961 vest every three months thereafter through February 10, 2030.

Remarks:

General Counsel & Chief Compliance Officer

	/s/ Holly Windham	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)

FAQ

What does the Cellebrite (CLBT) Form 3 filing for Holly B. Windham show?

The Form 3 shows Holly B. Windham’s initial beneficial ownership of 95,328 Cellebrite Ordinary Shares through restricted share units. It outlines two RSU grants with detailed vesting schedules extending from November 2025 and February 2026 through 2029 and 2030, respectively.

How many Cellebrite (CLBT) shares does Holly B. Windham report owning?

Holly B. Windham reports beneficial ownership of 95,328 Ordinary Shares of Cellebrite, all represented by restricted share units. The position is held directly and consists of two RSU grants that vest over several years, rather than currently tradable common shares acquired in the market.

What are the key vesting terms of Holly B. Windham’s November 5, 2025 RSU grant at Cellebrite (CLBT)?

The November 5, 2025 grant covers 47,938 RSUs. Of these, 11,986 vest on the first anniversary of the grant, with an additional 2,996 vesting every three months thereafter. This schedule continues through November 5, 2029, gradually delivering Ordinary Shares upon settlement.

How do the February 10, 2026 RSUs for Holly B. Windham at Cellebrite (CLBT) vest?

The February 10, 2026 grant includes 47,390 RSUs. Under the terms, 11,858 vest on the first anniversary of the grant date, followed by 2,961 vesting every three months. This quarterly vesting schedule runs through February 10, 2030, delivering one share per RSU at settlement.

Does the Cellebrite (CLBT) Form 3 for Holly B. Windham report any stock purchases or sales?

The Form 3 does not report any stock purchases or sales. It is an initial statement of beneficial ownership that details Holly B. Windham’s equity-based compensation through restricted share units and their vesting schedules, rather than documenting open-market transactions or option exercises.