By role
The chief executive is the insider with the most complete picture of a company's trading, and the one whose own money is least diversified away from it. Purchases filed under the role are the single most-watched line in any disclosure feed.
ddbx started recording disclosures in March 2026, so periods described as a full year cover only the filings since then.
Covers the 147 qualifying purchases by chief executives in the last twelve months, worth $116m across 88 companies; the 25 largest are listed. Median alpha since disclosure: +2.5pp, taken from the 146 with a performance mark.
Anyone whose filed title names them as a chief executive: “Chief Executive Officer”, “CEO”, “Chief Executive” and the group, interim, deputy, incoming and divisional variants of each. A filing by a chief executive's connected party is not counted here.
| # | Company | Bought by | Date | Value bought | Alpha since disclosure |
|---|---|---|---|---|---|
| 1 | Summit Therapeutics Inc. | DUGGAN ROBERT WCo-Chief Executive Officer | 2026-06-12 | $50m | -12.0pp |
| 2 | BOSTON SCIENTIFIC CORP | Mahoney Michael FChairman, President & CEO | 2026-08-03 | $9.0m | +9.0pp |
| 3 | Aptiv PLC | CLARK KEVIN PChair and CEO | 2026-08-10 | $2.5m | -0.3pp |
| 4 | COSTAR GROUP, INC. | FLORANCE ANDREW CFounder and CEO | 2026-08-04 | $2.5m | +5.2pp |
| 5 | PROSPECT CAPITAL CORP | Barry John FCHIEF EXECUTIVE OFFICER | 2026-06-23 | $2.3m | -4.3pp |
| 6 | PROSPECT CAPITAL CORP | Barry John FCHIEF EXECUTIVE OFFICER | 2026-06-22 | $2.2m | -2.1pp |
| 7 | Primo Brands Corp | FOSS ERIC JExec. Chair and CEO | 2026-08-10 | $2.0m | +3.1pp |
| 8 | On Holding AG | Coppetti Caspar FelixExecutive Officer & Co-CEO | 2026-08-14 | $2.0m | +6.4pp |
| 9 | NEXSTAR MEDIA GROUP, INC. | SOOK PERRY AChief Executive Officer | 2026-06-26 | $2.0m | +5.9pp |
| 10 | On Holding AG | Allemann David MichaelExecutive Officer & Co-CEO | 2026-05-14 | $1.9m | -17.2pp |
| 11 | On Holding AG | Coppetti Caspar FelixExecutive Officer & Co-CEO | 2026-05-14 | $1.9m | -17.2pp |
| 12 | Cardinal Infrastructure Group Inc. | Spivey Jeremy SimmonsChief Executive Officer | 2026-08-14 | $1.8m | +2.3pp |
| 13 | HF Sinclair Corp | MYERS FRANKLINCEO | 2026-08-11 | $1.3m | +10.0pp |
| 14 | AGREE REALTY CORP | Agree JoeyPRESIDENT & CEO | 2026-05-14 | $1.0m | -5.9pp |
| 15 | Enviri II Corp | Hochman Russell C.President and CEO | 2026-06-03 | $1.0m | +3.4pp |
| 16 | PFIZER INC | BOURLA ALBERTChairman & CEO | 2026-08-12 | $1.0m | +2.3pp |
| 17 | BRADY CORP | Nargolwala Vineet APresident & CEO | 2026-06-10 | $1.0m | +11.5pp |
| 18 | PROSPECT CAPITAL CORP | Barry John FCHIEF EXECUTIVE OFFICER | 2026-05-26 | $1000k | -5.7pp |
| 19 | Fortune Brands Innovations, Inc. | Singh Jesse GChief Executive Officer | 2026-08-07 | $996k | -1.6pp |
| 20 | Huntsman CORP | Huntsman Peter RChairman, President & CEO | 2026-08-03 | $981k | +1.5pp |
| 21 | ENERGY FUELS INC | Bhappu Ross R.President and CEO | 2026-07-07 | $968k | +2.5pp |
| 22 | FTI CONSULTING, INC | Gunby Steven HenryCEO, Chairman and President | 2026-05-13 | $958k | +0.4pp |
| 23 | Elevance Health, Inc. | BOUDREAUX GAILPresident and CEO | 2026-07-17 | $753k | +2.9pp |
| 24 | Fortune Brands Innovations, Inc. | Singh Jesse GChief Executive Officer | 2026-08-06 | $743k | -1.6pp |
| 25 | GIBRALTAR INDUSTRIES, INC. | Bosway William TPresident and CEO | 2026-05-26 | $739k | +15.2pp |