Insider trading

Period: 12 months Stock: BCYC + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

43 decisions over 12 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

43 decisions over 12 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

43 decisions over 12 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

43 decisions over 12 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
43 decisions over 12 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
43 decisions over 12 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

43 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
5 Oct 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$5.85K 1,638 at 3.57
0.3%
Not planned
5 Oct 2026
Skynner Michael CHIEF SCIENTIFIC OFFICER
Sold at will
$1.80K 503 at 3.57
0.3%
Not planned
5 Oct 2026
Perry Jennifer Scott Chief Operating Officer
Sold on a plan 2×
$1.52K 406 at 3.74
0.5%
Planned (10b5-1)
5 Oct 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$863.94 242 at 3.57
0.3%
Not planned
5 Oct 2026
Thompson Travis Alvin Chief Financial Officer
Sold at will
$282.03 79 at 3.57
0.1%
Not planned
2 Oct 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$21.40K 6,167 at 3.47
1.0%
Not planned
2 Oct 2026
Sold at will
$11.91K 3,431 at 3.47
17.9%
Not planned
2 Oct 2026
Skynner Michael CHIEF SCIENTIFIC OFFICER
Sold at will
$6.74K 1,942 at 3.47
1.2%
Not planned
2 Oct 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$5.45K 1,572 at 3.47
1.7%
Not planned
2 Oct 2026
Perry Jennifer Scott Chief Operating Officer
Sold on a plan
$3.80K 1,094 at 3.47
1.2%
Planned (10b5-1)
2 Oct 2026
Thompson Travis Alvin Chief Financial Officer
Sold at will
$3.10K 893 at 3.47
1.4%
Not planned
6 Jul 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$7.49K 1,737 at 4.31
0.3%
Not planned
6 Jul 2026
Skynner Michael CHIEF SCIENTIFIC OFFICER
Sold at will
$2.29K 532 at 4.31
0.3%
Not planned
6 Jul 2026
Perry Jennifer Scott Chief Operating Officer
Sold on a plan 2×
$1.63K 376 at 4.34
0.4%
Planned (10b5-1)
6 Jul 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$1.10K 255 at 4.31
0.3%
Not planned
6 Jul 2026
Thompson Travis Alvin Chief Financial Officer
Sold at will
$448.24 104 at 4.31
0.2%
Not planned
2 Jul 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$25.21K 5,905 at 4.27
1.0%
Not planned
2 Jul 2026
Skynner Michael CHIEF SCIENTIFIC OFFICER
Sold at will
$7.94K 1,859 at 4.27
1.2%
Not planned
2 Jul 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$6.43K 1,506 at 4.27
1.6%
Not planned
2 Jul 2026
Perry Jennifer Scott Chief Operating Officer
Sold on a plan
$4.42K 1,036 at 4.27
1.1%
Planned (10b5-1)
2 Jul 2026
Thompson Travis Alvin Chief Financial Officer
Sold at will
$3.50K 819 at 4.27
1.3%
Not planned
6 Apr 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$8.67K 1,716 at 5.05
0.3%
Not planned
6 Apr 2026
Skynner Michael CHIEF SCIENTIFIC OFFICER
Sold at will
$2.65K 525 at 5.05
0.3%
Not planned
6 Apr 2026
Perry Jennifer Scott Chief Operating Officer
Sold on a plan 2×
$1.87K 370 at 5.04
0.4%
Planned (10b5-1)
6 Apr 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$1.27K 251 at 5.05
0.3%
Not planned
6 Apr 2026
Thompson Travis Alvin Chief Financial Officer
Sold at will
$515.10 102 at 5.05
0.2%
Not planned
2 Apr 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$29.30K 5,967 at 4.91
1.0%
Not planned
2 Apr 2026
Skynner Michael CHIEF SCIENTIFIC OFFICER
Sold at will
$9.23K 1,879 at 4.91
1.2%
Not planned
2 Apr 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$7.47K 1,521 at 4.91
1.6%
Not planned
2 Apr 2026
Perry Jennifer Scott Chief Operating Officer
Sold on a plan
$5.10K 1,038 at 4.91
1.1%
Planned (10b5-1)
2 Apr 2026
Thompson Travis Alvin Chief Financial Officer
Sold at will
$3.92K 799 at 4.91
1.2%
Not planned
5 Jan 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$70.99K 10,989 at 6.46
1.7%
Not planned
5 Jan 2026
Young Alethia Chief Financial Officer
Sold on a plan 2×
$28.12K 4,334 at 6.49
4.7%
Planned (10b5-1)
5 Jan 2026
Milnes Alistair CHIEF OPERATING OFFICER
Sold at will
$22.07K 3,416 at 6.46
2.4%
Not planned
5 Jan 2026
Skynner Michael CHIEF TECHNOLOGY OFFICER
Sold at will
$21.10K 3,266 at 6.46
2.0%
Not planned
5 Jan 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$15.27K 2,367 at 6.45
2.4%
Not planned
5 Jan 2026
Thompson Travis Alvin CHIEF ACCOUNTING OFFICER
Sold at will
$7.19K 1,115 at 6.45
1.7%
Not planned
2 Jan 2026
Lee Kevin CHIEF EXECUTIVE OFFICER
Sold at will
$70.21K 10,325 at 6.80
1.6%
Not planned
2 Jan 2026
Young Alethia Chief Financial Officer
Sold on a plan
$22.37K 3,289 at 6.80
3.5%
Planned (10b5-1)
2 Jan 2026
Milnes Alistair CHIEF OPERATING OFFICER
Sold at will
$22.06K 3,244 at 6.80
2.3%
Not planned
2 Jan 2026
Skynner Michael CHIEF TECHNOLOGY OFFICER
Sold at will
$20.71K 3,045 at 6.80
1.8%
Not planned
2 Jan 2026
Hannay Michael Charles Ferguson CHIEF PROD & SUPPLY CHAIN OFF
Sold at will
$19.22K 2,827 at 6.80
2.7%
Not planned
2 Jan 2026
Thompson Travis Alvin CHIEF ACCOUNTING OFFICER
Sold at will
$8.96K 1,317 at 6.80
1.9%
Not planned
Showing 1–43 of 43.