Key facts
- This page summarizes Gregory D. Perry's Form 4 filing for Merus N.V. (MRUS).
- 11 reported transactions and 11 derivative rows are listed below.
- Accepted by SEC: 12 Dec 2025, 19:09.
Gregory D. Perry - 12 Dec 2025 Form 4 Insider Report for Merus N.V. (MRUS)
- Reporting relationship
- Chief Financial Officer & PFO
- Issuer ticker
- MRUS
- Reported as of
- 12 Dec 2025
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 12 Dec 2025, 19:09:47 UTC
- Prior SEC filing
- 17 Jun 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Peter Silverman as attorney-in-fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Gregory D. Perry filed Form 4 for Merus N.V. (MRUS) on 12 Dec 2025.
Change
- Previous filing in this sequence was filed on 17 Jun 2025.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001236371
Primary reporting owner
PERRY GREGORY D
- Relationship
- Chief Financial Officer & PFO
- Address
- C/O MERUS N.V., UPPSALALAAN 17, UTRECHT, NETHERLANDS
- Signature
- /s/ Peter Silverman as attorney-in-fact
- Signature date
- 12 Dec 2025
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -100,000
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 100,000
- Exercise price
- $41.65
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -107,300
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 107,300
- Exercise price
- $36.09
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -372,924
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 372,924
- Exercise price
- $26.50
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -14,414
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 14,414
- Exercise price
- $23.29
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -16,604
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 16,604
- Exercise price
- $18.56
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -6,120
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 6,120
- Exercise price
- $21.15
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -8,631
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 8,631
- Exercise price
- $16.09
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -17,000
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 17,000
- Exercise price
- $10.04
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -5,650
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 5,650
- Exercise price
- $19.12
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -4,983
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 4,983
- Exercise price
- $23.30
- Footnotes
- F1, F2
MRUS
transaction
Derivative
Share Option (right to buy)
Disposed to Issuer
- Transaction value
- $0
- Shares
- -8,500
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 12 Dec 2025
- Ownership
- Direct
- Underlying class
- Common Shares
- Underlying amount
- 8,500
- Exercise price
- $13.35
- Footnotes
- F1, F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
On September 29, 2025, Merus N.V. (the "Issuer") entered into a transaction agreement (as it may be amended, supplemented or otherwise modified from time to time, the "Transaction Agreement") with Genmab A/S ("Genmab") and its wholly owned subsidiary, Genmab Holding II B.V. (the "Purchaser"). Pursuant to the terms of the Transaction Agreement, the Purchaser commenced a tender offer for all the issued and outstanding common shares, par value EUR 0.09 per share (the "Shares"), of the Issuer (the "Offer"), and, on December 12, 2025 (the "Acceptance Time"), the Purchaser accepted all of the Shares that were validly tendered and not properly withdrawn pursuant to the Offer as of the Acceptance Time in exchange for a cash payment equal to $97.00 per Share, without interest and less applicable withholding taxes (the "Offer Consideration"), which Offer Consideration will be paid as soon as practicable following the Acceptance Time.
Footnote F2
This option was cancelled pursuant to the Transaction Agreement in exchange for cash (without interest and net of applicable withholding tax and other applicable deductions) in an amount equal to the product of (i) the amount by which the Offer Consideration exceeds the applicable exercise price per Share of such option and (ii) the aggregate number of Shares underlying such option.