Transaction · 0001610717-26-000442
CTMXCytomX Therapeutics, Inc.
McCarthy Sean A.
McCarthy Sean A., CEO, reported a transaction classified as exercise at CytomX Therapeutics, Inc. involving 101793.000000 shares for an estimated $0.00. Reported holdings after the transaction were 348207.000000 shares. The stored filing text includes a detected 10b5-1 reference.
exerciseSEC transaction code MCEO
- Trade date
- Nov 06, 2025
- Filing date
- Oct 16, 2026
How reported position traded is calculated
Not calculated for derivative securities.
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.
Filing warnings
Notes recorded with this filingamended filingThis transaction comes from an amended Form 4 filing.
delayed filingThe filing was reported 344 calendar days after the transaction date.
CTMX price since this filing
Daily closing prices, with the filing date and available return windowsCTMX · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -1.8%1w ago -1.8%1d ago +15.2%
Returns since7d30d90d180d1y
Transaction facts
Stored Form 4 columns with their raw values
- Type
- exercise Code M
- Identifier
- 0001610717-26-000442 Stock Option (Right to Buy)
- Transaction date
- Nov 06, 2025 Filed Oct 16, 2026, 11:40 PM · 344d delay
- Shares
- 101,793 sh $0.00 per share
- Estimated value
- $0 Computed from shares × price
- Holdings after
- 348,207 sh Direct
Filing signal explanations
Badges describe filing facts only — not predictions.
Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Amended Filing Delayed Filing Derivative Transaction Direct Ownership Large Holdings Reduction 10b5-1 Detected
Filing-only score
-32 points
Compact filing score computed from stored Form 4 facts. Version v1.
Low filing signal
This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.
How this score is calculated
- direct_ownership+6 points
direct_or_indirect_ownership = D
Direct ownership reports the insider's personal stake. - derivative_transaction-16 points
is_derivative = true
Derivative exercise rows are less discretionary than open-market purchases. - tenb5_1_detected-10 points
is_10b5_1 = true
Stored filing content includes detected 10b5-1 language. - amended_filing-6 points
is_amendment = true
Amended filing: the original transaction may have been restated. - delayed_filing-6 points
reporting_delay_days = 344
Filing delay exceeds the configured threshold.
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
CEO
Officer YesDirector Yes10% NoOther No
Footnotes & amended
- F1
This Form 4/A restates in its entirety the original Form 4 filed on 11/10/2025 (the "Original Form 4") to report an inadvertently omitted exercise that was part of a same-day exercise-and-sale transac…
- F2
The transactions reported herein were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan, adopted on August 27, 2024.
- F3
This transaction was executed in multiple trades at prices ranging from $4.50 to $4.62, inclusive. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to…
- F4
Includes 488,750 restricted stock units.
- F5
Shares held by Sean A. McCarthy 2018 Trust, of which the Reporting Person is trustee.
- F6
This option is fully vested and exercisable.
Related transactions
Same SEC filing0 other transactions
Recent company activity
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