Transaction · 0001628280-26-062368

Mattis Julia C

Mattis Julia C, CLO, reported a transaction classified as withholding at InterDigital, Inc. involving 325.000000 shares for an estimated $110623.50. Reported holdings after the transaction were 11237.120200 shares. A 10b5-1 reference was not detected in the stored filing text.

withholdingSEC transaction code FCLO
IDCCInterDigital, Inc.
Trade date
Sep 15, 2026
Filing date
Sep 17, 2026
View on SEC Insider profile
Disclosed value-$110kShares × reported price
Shares traded325$340.38 per share
Holdings after11.2kDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Calculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

IDCC price since this filing

Daily closing prices, with the filing date and available return windows
IDCC · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +6.7%1w ago +6.2%1d ago +5.7%
Returns since7d +1.9%30d -0.8%90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001628280-26-062368
Common Stock
Transaction date
Sep 15, 2026
Filed Sep 17, 2026, 11:59 AM · 2d delay
Shares
325 sh
$340.38 per share
Estimated value
-$110k
Computed from shares × price
Holdings after
11,237.1202 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership
Filing-only score

-12 points

Compact filing score computed from stored Form 4 facts. Version v1.

Mixed or weak signal

This filing has a negative filing-only score. It may be less informative as an insider-activity signal and needs extra context.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 2

    Filing reported within two business days of the transaction.
  • tax_withholding-22 points

    transaction_code = F

    Tax withholding on vesting shares is mechanical.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chief Licensing Officer

Officer YesDirector No10% NoOther No
Footnotes & amended
  1. F1

    The transaction reported reflects the withholding of restricted stock units in satisfaction of the reporting person's tax liability. The restricted stock units were granted to the reporting person on…

  2. F2

    The transaction reported reflects the cash settlement of fractional shares in connection with the vesting of restricted stock units, as described in the previous footnote.

Original filing · 0001628280-26-062368
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