BCYC · Insider Trading
Bicycle Therapeutics plc American Depositary Shares
Every open-market purchase and sale reported by BCYC officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
27
code S
Reporting Insiders
22
current holders
BCYC — Recent Form 4 Transactions (latest 2026-10-07)
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-07 | Jennifer Scott Perry | Chief Operating Officer | Sell | −356 | −$1.34K |
| 2026-10-06 | Robert Charles Swanton | Director | Sell | −3,431 | −$11.91K |
| 2026-10-06 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | Sell | −1,814 | −$6.32K |
| 2026-10-06 | Kevin Lee | CHIEF EXECUTIVE OFFICER | Sell | −7,805 | −$27.25K |
| 2026-10-06 | Michael Skynner | CHIEF SCIENTIFIC OFFICER | Sell | −2,445 | −$8.53K |
| 2026-10-06 | Travis Alvin Thompson | Chief Financial Officer | Sell | −972 | −$3.38K |
| 2026-10-06 | Jennifer Scott Perry | Chief Operating Officer | Sell | −1,500 | −$5.31K |
| 2026-07-17 | Travis Alvin Thompson | Chief Financial Officer | A | +60,000 deriv. | — |
| 2026-07-17 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | A | +60,000 deriv. | — |
| 2026-07-17 | Michael Skynner | CHIEF SCIENTIFIC OFFICER | A | +60,000 deriv. | — |
| 2026-07-17 | Jennifer Scott Perry | Chief Operating Officer | A | +60,000 deriv. | — |
| 2026-07-07 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | Sell | −1,761 | −$7.53K |
| 2026-07-07 | Jennifer Scott Perry | Chief Operating Officer | Sell | −1,412 | −$6.05K |
| 2026-07-07 | Travis Alvin Thompson | Chief Financial Officer | Sell | −923 | −$3.95K |
| 2026-07-07 | Kevin Lee | CHIEF EXECUTIVE OFFICER | Sell | −7,642 | −$32.70K |
| 2026-07-07 | Michael Skynner | CHIEF SCIENTIFIC OFFICER | Sell | −2,391 | −$10.23K |
| 2026-04-06 | Michael Skynner | CHIEF SCIENTIFIC OFFICER | Sell | −2,404 | −$11.88K |
| 2026-04-06 | Jennifer Scott Perry | Chief Operating Officer | Sell | −1,408 | −$6.96K |
| 2026-04-06 | Travis Alvin Thompson | Chief Financial Officer | Sell | −901 | −$4.44K |
| 2026-04-06 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | Sell | −1,772 | −$8.74K |
| 2026-04-06 | Kevin Lee | CHIEF EXECUTIVE OFFICER | Sell | −7,683 | −$37.96K |
| 2026-02-04 | Travis Alvin Thompson | Chief Financial Officer | A | +58,000 deriv. | — |
| 2026-01-06 | Alistair Milnes | CHIEF OPERATING OFFICER | MIXED | +43,340 | −$44.13K |
| 2026-01-06 | Jose-Carlos Gutierrez-Ramos | Director | A | +9,500 | — |
| 2026-01-06 | Robert Charles Swanton | Director | A | +3,726 | — |
| 2026-01-06 | Janice Bourque | Director | A | +9,500 | — |
| 2026-01-06 | Roger D Dansey | Director | A | +3,032 | — |
| 2026-01-06 | Alessandro Riva | Director | A | +7,380 | — |
| 2026-01-06 | Stephen H. Sands | Director | A | +9,500 | — |
| 2026-01-06 | Michael Skynner | CHIEF TECHNOLOGY OFFICER | MIXED | +43,689 | −$41.80K |
| 2026-01-06 | Gregory Paul Winter | Director | A | +9,500 | — |
| 2026-01-06 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | MIXED | +44,806 | −$34.49K |
| 2026-01-06 | Kevin Lee | CHIEF EXECUTIVE OFFICER | MIXED | +143,686 | −$141.20K |
| 2026-01-06 | Herve Hoppenot | Director | A | +3,032 | — |
| 2026-01-06 | Travis Alvin Thompson | CHIEF ACCOUNTING OFFICER | MIXED | +35,068 | −$16.15K |
| 2026-01-06 | BAKER BROS. ADVISORS LP | Director | A | +228,000 | — |
| 2026-01-06 | Alethia Young | Chief Financial Officer | MIXED | +42,377 | −$50.49K |
| 2025-10-06 | Kevin Lee | CHIEF EXECUTIVE OFFICER | Sell | −5,494 | −$46.18K |
| 2025-10-06 | Travis Alvin Thompson | CHIEF ACCOUNTING OFFICER | Sell | −324 | −$2.72K |
| 2025-10-06 | Alethia Young | Chief Financial Officer | Sell | −482 | −$4.10K |
| 2025-10-06 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | Sell | −723 | −$6.08K |
| 2025-10-06 | Alistair Milnes | CHIEF OPERATING OFFICER | Sell | −2,125 | −$17.86K |
| 2025-10-06 | Robert Charles Swanton | Director | Sell | −102 | −$872 |
| 2025-10-06 | Michael Skynner | CHIEF TECHNOLOGY OFFICER | Sell | −1,802 | −$15.15K |
| 2025-09-10 | Roger D Dansey | Director | A | +12,500 | — |
| 2025-09-10 | Herve Hoppenot | Director | A | +12,500 | — |
| 2025-08-14 | Robert Charles Swanton | Director | A | +12,500 | — |
| 2025-07-07 | Alethia Young | Chief Financial Officer | Sell | −204 | −$1.45K |
| 2025-07-07 | Kevin Lee | CHIEF EXECUTIVE OFFICER | Sell | −5,461 | −$39.84K |
| 2025-07-07 | Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | Sell | −722 | −$5.21K |
BCYC — Current Insider Holders
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| 667, L.P. | Director | 8,666,247 | $31.03M |
| BAKER BROS. ADVISORS LP | Director | 937,483 | $3.36M |
| Julian Baker | Director | 918,483 | $3.29M |
| Kevin Lee | CHIEF EXECUTIVE OFFICER | 597,504 | $2.14M |
| Gregory Paul Winter | Director | 196,427 | $703.21K |
| Michael Skynner | CHIEF SCIENTIFIC OFFICER | 154,726 | $553.92K |
| Alistair Milnes | CHIEF OPERATING OFFICER | 143,377 | $513.29K |
| Michael Charles Ferguson Hannay | CHIEF PROD & SUPPLY CHAIN OFF | 92,561 | $331.37K |
| Alethia Young | Chief Financial Officer | 91,415 | $327.27K |
| Jennifer Scott Perry | Chief Operating Officer | 89,602 | $320.78K |
| Santiago Arroyo | CHIEF DEVELOPMENT OFFICER | 69,057 | $247.22K |
| Travis Alvin Thompson | Chief Financial Officer | 64,449 | $230.73K |
| Nigel Crockett | CHIEF BUSINESS OFFICER | 54,572 | $195.37K |
| Pierre Legault | Director | 46,000 | $164.68K |
| Janice Bourque | Director | 32,500 | $116.35K |
| Jose-Carlos Gutierrez-Ramos | Director | 32,500 | $116.35K |
| Stephen H. Sands | Director | 26,893 | $96.28K |
| Richard N Kender | Director | 23,000 | $82.34K |
| Alessandro Riva | Director | 19,880 | $71.17K |
| Robert Charles Swanton | Director | 15,782 | $56.50K |
| Herve Hoppenot | Director | 15,532 | $55.60K |
| Roger D Dansey | Director | 15,532 | $55.60K |
BCYC Insider Trading FAQ
Who are the insiders at BCYC?
22 officers, directors and 10%+ beneficial owners currently report holdings in BCYC via SEC Form 4.
Are BCYC insiders buying or selling?
Across the 50 most recent Form 4 filings for BCYC, 0 were open-market purchases (code P) and 27 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is BCYC insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent BCYC filing is dated 2026-10-07.
How to read Form 4 activity
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the BCYC quote page; the site-wide leaderboard is on the insider transactions hub.
More on BCYC
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.