BlackBerry (BB) director awarded 22,567 deferred share units

Rhea-AI Filing Summary

BlackBerry Limited director Barry Mainz reported receiving a grant of deferred share units. On this Form 4, he acquired 22,567 Deferred Share Units (DSUs) at a price of $0.00 per unit as a grant or award. After this transaction, he directly holds 75,289 DSUs. Each DSU is economically equivalent to one BlackBerry common share and will be settled, at BlackBerry’s discretion, in cash, common shares, or a combination after he ceases serving as a director.

SEC Form 4

FORM 4

UNITED 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

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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^*

Mainz Barry

(Last) (First) (Middle)

C/O BLACKBERRY LTD

2200 UNIVERSITY AVENUE EAST

(Street)

WATERLOO A6 N2K0A7

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
BLACKBERRY Ltd [ BB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/28/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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 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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Deferred Share Unit	(1)	02/28/2026		A		22,567		(1)	(1)	Common Shares	22,567	(1)	75,289	D

Explanation of Responses:

1. Each Deferred Share Unit ("DSU") is the economic equivalent of one common share. The DSUs become payable, in cash or common shares or a combination of the two, at the discretion of BlackBerry Limited ("BlackBerry") following cessation of the reporting person's service as a director of BlackBerry.

Remarks:

	/s/ Fraser Deziel, Attorney-in-fact for Barry Mainz	03/03/2026
	** 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 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.

FAQ

What did BlackBerry (BB) director Barry Mainz report on this Form 4?

Barry Mainz reported receiving a grant of 22,567 Deferred Share Units (DSUs). These units were awarded at a price of $0.00 per unit and represent director compensation linked to BlackBerry’s common shares, rather than an open-market stock purchase or sale.

How many Deferred Share Units does Barry Mainz hold after this BlackBerry (BB) grant?

After the reported transaction, Barry Mainz directly holds 75,289 Deferred Share Units. This total includes the new grant of 22,567 DSUs and reflects his accumulated director compensation that is economically tied to BlackBerry’s common shares.

What is a Deferred Share Unit in the context of BlackBerry (BB)?

Each Deferred Share Unit (DSU) is the economic equivalent of one BlackBerry common share. DSUs are typically used for director compensation and track share value, but they are paid out later, rather than being immediately settled like regular stock grants.

When will Barry Mainz’s BlackBerry (BB) Deferred Share Units be paid out?

The Deferred Share Units become payable after Barry Mainz ceases serving as a BlackBerry director. At that time, BlackBerry may settle the DSUs in cash, in common shares, or in a combination of both, at the company’s discretion.

Did Barry Mainz buy or sell BlackBerry (BB) shares in the market in this filing?

No, this Form 4 reports a grant or award acquisition of 22,567 Deferred Share Units, not an open-market trade. The transaction is coded as a grant (code A) with a price of $0.00 per unit, reflecting non-cash director compensation.