BlackBerry CEO proposes $1.42M share sale

The listed sale has an approximate date of October 21, 2026, with Morgan Stanley Smith Barney LLC named as broker.

Rhea-AI Filing Summary

BlackBerry Limited (BB) has a Form 144 notice listing a proposed sale by CEO John Joseph Giamatteo of 151,000 common shares, with an aggregate market value of $1,419,792.60 and an approximate sale date of October 21, 2026. Morgan Stanley Smith Barney LLC is listed as broker. The associated share history lists restricted stock vesting under a registered plan: 135,552 shares on January 3, 2025, and 15,448 shares on January 6, 2025.

Key Figures

Common shares proposed for sale: 151,000 shares Aggregate market value: $1,419,792.60 Common shares outstanding: 587,032,279 shares +2 more

5 metrics

Common shares proposed for sale 151,000 shares Approximate sale date: October 21, 2026

Aggregate market value $1,419,792.60 Proposed sale of common shares

Common shares outstanding 587,032,279 shares Reported number of shares outstanding

Restricted stock vesting 135,552 shares Under a registered plan on January 3, 2025

Restricted stock vesting 15,448 shares Under a registered plan on January 6, 2025

Key Terms

Rule 144, Restricted Stock Vesting Under a Registered Plan, Aggregate market value

3 terms

Rule 144 regulatory

"paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting Under a Registered Plan financial

"Restricted Stock Vesting Under a Registered Plan"

Aggregate market value financial

"Aggregate market value"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

FAQ

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

How many BB shares does John Joseph Giamatteo propose to sell?

John Joseph Giamatteo is listed as proposing to sell 151,000 BlackBerry common shares, with an aggregate market value of $1,419,792.60. The approximate sale date is October 21, 2026, and Morgan Stanley Smith Barney LLC is listed as broker.

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

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Available on EDGAR 10/21/2026 - 04:32 PM EDT Accepted by SEC EDGAR 10/21/2026 - 04:27 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001234080
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	BLACKBERRY LIMITED
SEC File Number	001-38232
Address of Issuer	2200 University Ave East Waterloo ONTARIO, CANADA N2K 0A7
Phone	591-888-7465
Name of Person for Whose Account the Securities are To Be Sold	JOHN J GIAMATTEO
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director
Relationship to Issuer	CEO

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	151000	1419792.60	587032279	10/21/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	01/03/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			135552	01/03/2025	Services Rendered
Common	01/06/2025	Restricted Stock Vesting Under a Registered Plan	Issuer			15448	01/06/2025	Services Rendered

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	10/21/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ John Joseph Giamatteo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)