Jennifer Scott Perry - 02 Oct 2026 Form 4/A - Amendment Insider Report for BICYCLE THERAPEUTICS PLC (BCYC)

Reporting relationship: Chief Operating Officer
Issuer ticker: BCYC
Reported as of: 02 Oct 2026
Net transaction value: -$1,339
SEC form: 4/A - Amendment
Accepted by SEC: 07 Oct 2026, 18:24:47 UTC
Original report date: 06 Oct 2026
Prior SEC filing: 17 Jul 2026
Source filing: View source filing
Reporting owner signature: /s/ Travis Thompson, Attorney-in-Fact

Filing notes and source

Key filing fact

Jennifer Scott Perry filed Form 4/A - Amendment for BICYCLE THERAPEUTICS PLC (BCYC) on 07 Oct 2026.

Key facts

This page summarizes Jennifer Scott Perry's Form 4/A - Amendment filing for BICYCLE THERAPEUTICS PLC (BCYC).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 07 Oct 2026, 18:24.

Change

Previous filing in this sequence was filed on 17 Jul 2026.
Current net transaction value: -$1,339.

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

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0002119908 Primary reporting owner

Perry Jennifer Scott

Relationship: Chief Operating Officer
Address: C/O BICYCLE THERAPEUTICS PLC, BLOCKS A & B, PORTWAY BUILDING, CAMBRIDGE, UNITED KINGDOM
Signature: /s/ Travis Thompson, Attorney-in-Fact
Signature date: 07 Oct 2026

Reported non-derivative transactions

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

BCYC transaction

Ordinary Shares

Sale

Transaction value: $107
Shares: -30
Change %: -0.03%
Price: $3.57
Shares after: 89,928
Date: 05 Oct 2026
Ownership: Direct
Footnotes: F1, F2, F3

BCYC transaction

Ordinary Shares

Sale

Transaction value: $1,232
Shares: -326
Change %: -0.36%
Price: $3.78
Shares after: 89,602
Date: 05 Oct 2026
Ownership: Direct
Footnotes: F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 4 footnotes

Footnote F1

Represents the number of shares required to be sold to cover the statutory tax withholding obligations in connection with the vesting and settlement of the RSUs. This sale is mandated by the Reporting Person's award agreement that requires the satisfaction of minimum statutory tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary sale by the Reporting Person.

Footnote F2

The original Form 4 inadvertently overstated the number of shares sold, weighted average price and the number of shares beneficially owned following the reported transactions. This amendment correctly states the number of shares sold, weighted average price and the number of shares beneficially owned following the reported transactions.

Footnote F3

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.56 to $3.57 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Footnote F4

This transaction was made pursuant to a Rule 10b5-1 trading plan adopted on March 27, 2025.