InterDigital (IDCC) chief licensing officer granted RSU dividend equivalents

Rhea-AI Filing Summary

InterDigital, Inc. Chief Licensing Officer Julia C. Mattis received an automatic grant of additional common stock as part of her existing equity compensation. She acquired 16.3617 shares of common stock at no cost, credited as restricted stock units from dividend equivalents on previously granted unvested RSUs.

Following this award, Mattis directly holds a total of 13,138.3091 shares of common stock. The transaction reflects routine compensation-related accruals tied to cash dividends on InterDigital’s common stock rather than any open-market purchase or sale decision.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Mattis Julia C

Role Chief Licensing Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	16.362	$0.00	--

Holdings After Transaction: Common Stock — 13,138.309 shares (Direct, null)

Footnotes (1)

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Key Figures

RSUs granted: 16.3617 shares Grant price per share: $0.0000 per share Shares held after transaction: 13,138.3091 shares

3 metrics

RSUs granted 16.3617 shares Restricted stock units from dividend equivalents on unvested RSUs

Grant price per share $0.0000 per share Price for the RSU dividend-equivalent award

Shares held after transaction 13,138.3091 shares Direct common stock holdings of Julia C. Mattis after the award

Key Terms

restricted stock units, dividend equivalents, unvested restricted stock units

3 terms

restricted stock units financial

"Restricted stock units received pursuant to dividend equivalents credited on unvested restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

dividend equivalents financial

"Dividend equivalents accrue with respect to unvested restricted stock units when and as cash dividends are paid"

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

unvested restricted stock units financial

"dividend equivalents credited on unvested restricted stock units previously granted to the reporting person"

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Mattis Julia C

(Last) (First) (Middle)

200 BELLEVUE PARKWAY

SUITE 300

(Street)

WILMINGTON DELAWARE 19809

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
InterDigital, Inc. [ IDCC ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/22/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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
Common Stock	04/22/2026		A(1)		16.3617	A	$0	13,138.3091	D

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

Explanation of Responses:

1. Restricted stock units received pursuant to dividend equivalents credited on unvested restricted stock units previously granted to the reporting person. Dividend equivalents accrue with respect to unvested restricted stock units when and as cash dividends are paid on InterDigital, Inc.'s common stock.

Remarks:

	/s/ Ariel E. Greenstein, Attorney-in-Fact for Julia C. Mattis	04/24/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What did InterDigital (IDCC) executive Julia C. Mattis report on this Form 4?

Julia C. Mattis reported an automatic acquisition of common stock. She received 16.3617 shares as restricted stock units from dividend equivalents on previously granted unvested RSUs, increasing her direct holdings to 13,138.3091 shares of InterDigital common stock.

Was the InterDigital (IDCC) Form 4 transaction an open-market buy or sell?

The Form 4 transaction was not an open-market buy or sell. It reflects a grant of 16.3617 restricted stock units awarded at no cost as dividend equivalents on unvested RSUs, a routine compensation-related adjustment rather than a discretionary trade in InterDigital shares.

How many InterDigital (IDCC) shares does Julia C. Mattis hold after this filing?

After this transaction, Julia C. Mattis directly holds 13,138.3091 shares of InterDigital common stock. This total includes the 16.3617 shares received as restricted stock units from dividend equivalents credited on her previously granted unvested restricted stock units.

What are dividend equivalents on unvested restricted stock units at InterDigital (IDCC)?

Dividend equivalents are additional units credited when cash dividends are paid on InterDigital common stock. For unvested restricted stock units, these equivalents accrue as extra RSUs, like the 16.3617 shares granted to Julia C. Mattis, aligning compensation with shareholder dividend distributions.

What does transaction code "A" mean in the InterDigital (IDCC) Form 4?

Transaction code "A" indicates a grant, award, or other acquisition of securities. In this case, Julia C. Mattis received 16.3617 restricted stock units at a price of $0.0000 per share, representing dividend-equivalent credits on her unvested restricted stock units in InterDigital.