# EDGAR Filing Document

**Accession Number:** 0001388839
**File Stem:** 0001070235-25-000153
**Filing Date:** 2025-9
**Character Count:** 7427
**Document Hash:** fb98c9426a270942b052b4e60998d5e5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001070235-25-000153.hdr.sgml**: 20250902

**ACCESSION NUMBER**: 0001070235-25-000153

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250823

**FILED AS OF DATE**: 20250902

**DATE AS OF CHANGE**: 20250902

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Mainz Barry
- **CENTRAL INDEX KEY:** 0001388839

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38232
- **FILM NUMBER:** 251286129

**BUSINESS ADDRESS:**
- **STREET 1:** 500 WIND RIVER WAY
- **CITY:** ALAMEDA
- **STATE:** CA
- **ZIP:** 94501
- **BUSINESS PHONE:** (510) 748-4100

**MAIL ADDRESS:**
- **STREET 1:** 500 WIND RIVER WAY
- **CITY:** ALAMEDA
- **STATE:** CA
- **ZIP:** 94501

**FORMER NAME:**
- **FORMER CONFORMED NAME:** Barry Mainz
- **DATE OF NAME CHANGE:** 20070205
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** BLACKBERRY Ltd
- **CENTRAL INDEX KEY:** 0001070235
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-PREPACKAGED SOFTWARE [7372]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **FISCAL YEAR END:** 0228

**BUSINESS ADDRESS:**
- **STREET 1:** 2200 UNIVERSITY AVENUE EAST
- **CITY:** WATERLOO
- **STATE:** A6
- **ZIP:** N2K 0A7
- **BUSINESS PHONE:** 5198887465

**MAIL ADDRESS:**
- **STREET 1:** 2200 UNIVERSITY AVENUE EAST
- **CITY:** WATERLOO
- **STATE:** A6
- **ZIP:** N2K 0A7

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RESEARCH IN MOTION LTD
- **DATE OF NAME CHANGE:** 19980911

## Ex-24

```

EXHIBIT 24

POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby constitutes and appoints
each of Fraser Deziel and Cyndi McGillivray of BlackBerry Limited, an Ontario,
Canada corporation (the "Company") and Scott Lesmes and Charmaine Perdon of
Morrison & Foerster LLP, and with full power of substitution, as the
undersigned's true and lawful attorney-in-fact to:

(1)  execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of the Company, Forms 3, 4, and 5 in accordance
with Section 16(a) of the Securities Exchange Act of 1934 and the rules
thereunder;
(2) do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, or 5,
complete and execute any amendment or amendments thereto, and timely file such
form with the U.S. Securities and Exchange Commission (the "SEC") and any stock
exchange or similar authority; and
(3) take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of any such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by any such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in-fact may approve in
any such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that each such attorney-in-fact, or each
such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to
be done by virtue of this power of attorney and the rights and powers herein
granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to each
of the foregoing attorneys-in-fact.

[Signature on Next Page]

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of August 29, 2025.

/s/ Barry Mainz
Name:  Barry Mainz

```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Mainz Barry<br><sub>(Last) (First) (Middle)</sub><br>C/O BLACKBERRY LTD<br>2200 UNIVERSITY AVENUE EAST<br><sub>(Street)</sub><br>WATERLOO, A6 N2K0A7<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>BLACKBERRY Ltd [ BB ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-08-23 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Remarks:**
Exhibit List: Exhibit 24 - Power of Attorney

**Signature:** /s/ Fraser Deziel, Attorney-in-fact for Barry Mainz  
**Date:** 2025-09-02

### Remarks:

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.**