Mohan Bala - 05 Sep 2023 Form 3 Insider Report for Mersana Therapeutics, Inc. (MRSN)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
3
Accepted by SEC
07 Sep 2023, 17:46:47 UTC
Next SEC filing
27 Oct 2023
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Alejandra Carvajal, as attorney-in-fact

Key filing fact

Mohan Bala filed Form 3 for Mersana Therapeutics, Inc. (MRSN) on 07 Sep 2023.

Key facts

  • This page summarizes Mohan Bala's Form 3 filing for Mersana Therapeutics, Inc. (MRSN).
  • 0 reported transactions and 5 derivative rows are listed below.
  • Accepted by SEC: 07 Sep 2023, 17:46.

Change

  • No earlier filing in this sequence is available for direct comparison.
  • 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

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MRSN holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
4,395
Date
05 Sep 2023
Ownership
Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MRSN holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
05 Sep 2023
Ownership
Direct
Underlying class
Common Stock
Underlying amount
112,500
Exercise price
$8.63
Footnotes
F1
MRSN holding Derivative

Stock Option (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
05 Sep 2023
Ownership
Direct
Underlying class
Common Stock
Underlying amount
157,500
Exercise price
$6.06
Footnotes
F2
MRSN holding Derivative

Restricted stock unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
05 Sep 2023
Ownership
Direct
Underlying class
Common Stock
Underlying amount
18,750
Exercise price
$0.000000
Footnotes
F3, F4
MRSN holding Derivative

Restricted stock unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
05 Sep 2023
Ownership
Direct
Underlying class
Common Stock
Underlying amount
35,000
Exercise price
$0.000000
Footnotes
F4, F5
MRSN holding Derivative

Restricted stock unit

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date
05 Sep 2023
Ownership
Direct
Underlying class
Common Stock
Underlying amount
50,000
Exercise price
$0.000000
Footnotes
F4, F6
* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

25% of the shares underlying the option vested on October 25, 2022, and the remainder vested or will vest in equal quarterly installments thereafter, subject to the Reporting Person's continued service to the Issuer on such vesting date.

Footnote F2

The shares underlying the option vested or will vest in equal quarterly installments over four years following the date of grant, January 13, 2023, subject to the Reporting Person's continued service to the Issuer on such vesting date.

Footnote F3

The restricted stock units ("RSUs") will vest in three equal installments on October 25, 2023, October 25, 2024, and October 25, 2025, subject to the Reporting Person's continued service to the Issuer on such vesting date.

Footnote F4

Each RSU represents the contingent right to receive one share of common stock of the Issuer.

Footnote F5

The RSUs will vest in equal annual installments over four years following the date of grant, January 13, 2023, subject to the Reporting Person's continued service to the Issuer on such vesting date.

Footnote F6

The RSUs will vest on October 1, 2024, subject to the Reporting Person's continued service to the Issuer on such vesting date.

SEC remarks

Exhibit 24 - Power of Attorney

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