ADCT
ADC Therapeutics SA
NYSE: ADCT · HEALTHCARE · BIOTECHNOLOGY
$3.48
-21.97% today
Updated 2026-06-05
Market cap
$432.45M
P/E ratio
—
P/S ratio
5.46x
EPS (TTM)
$-0.97
Dividend yield
—
52W range
$3 – $5
Volume
1.4M
ADC Therapeutics SA (ADCT) Insider transactions
Net insider activity
Net buying (38,722,811 shares)
Buy transactions
32
Sell transactions
38
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-02 | REDMILE, GROUP, LLC | 10% Owner | Sale | 2,634,506 | $3.28 | $8.64M |
| 2026-04-02 | REDMILE, GROUP, LLC | 10% Owner | Sale | 2,529,491 | $3.28 | $8.29M |
| 2026-04-01 | REDMILE, GROUP, LLC | 10% Owner | Sale | 169,265 | $3.80 | $643037.73 |
| 2026-04-01 | REDMILE, GROUP, LLC | 10% Owner | Sale | 162,517 | $3.80 | $617402.08 |
| 2026-03-31 | REDMILE, GROUP, LLC | 10% Owner | Sale | 196,229 | $3.75 | $736251.21 |
| 2026-03-31 | REDMILE, GROUP, LLC | 10% Owner | Sale | 188,407 | $3.75 | $706903.06 |
| 2026-02-13 | ZAKI, MOHAMED | Chief Medical Officer | Buy | 285,200 | $3.99 | $1.14M |
| 2026-02-13 | ZAKI, MOHAMED | Chief Medical Officer | Sale | 24,603 | $3.99 | $98165.97 |
| 2026-02-13 | MALLIK, AMEET | Director, Chief Executive Officer | Buy | 900,000 | $3.99 | $3.59M |
| 2026-02-13 | MALLIK, AMEET | Director, Chief Executive Officer | Sale | 103,231 | $3.99 | $411891.69 |
| 2026-02-13 | KALLEBO, LISA MICHELLE | Chief Accounting Officer | Buy | 62,900 | $3.99 | $250971.00 |
| 2026-02-13 | KALLEBO, LISA MICHELLE | Chief Accounting Officer | Sale | 5,433 | $3.99 | $21677.67 |
| 2026-02-13 | GRAHAM, PETER J | Chief Legal Officer | Buy | 294,800 | $3.99 | $1.18M |
| 2026-02-13 | GRAHAM, PETER J | Chief Legal Officer | Sale | 33,294 | $3.99 | $132843.06 |
| 2026-02-13 | CARMONA, JOSE | Chief Financial Officer | Buy | 271,600 | $3.99 | $1.08M |
| 2026-02-13 | CARMONA, JOSE | Chief Financial Officer | Sale | 25,880 | $3.99 | $103261.20 |
| 2025-12-06 | ZAKI, MOHAMED | Chief Medical Officer | Sale | 41,068 | $3.29 | $135113.72 |
| 2025-12-06 | MALLIK, AMEET | Director, Chief Executive Officer | Sale | 233,146 | $3.29 | $767050.34 |
| 2025-12-06 | KALLEBO, LISA MICHELLE | Chief Accounting Officer | Sale | 7,140 | $3.29 | $23490.60 |
| 2025-12-06 | GRAHAM, PETER J | Chief Legal Officer | Sale | 49,508 | $3.29 | $162881.32 |
| 2025-12-06 | CARMONA, JOSE | Chief Financial Officer | Sale | 53,236 | $3.29 | $175146.44 |
| 2025-10-27 | REDMILE, GROUP, LLC | 10% Owner | Buy | 3,846,153 | $3.90 | $15.00M |
| 2025-06-13 | SQUARER, RON | Director | Sale | 15,184 | $3.58 | $54358.72 |
| 2025-06-13 | SANDOR, VICTOR | Director | Sale | 12,600 | $3.58 | $45108.00 |
| 2025-06-13 | MONGES, VIVIANE | Director | Sale | 2,584 | $3.58 | $9250.72 |
| 2025-06-13 | HUG, PETER | Director | Sale | 2,144 | $3.58 | $7675.52 |
| 2025-06-13 | BIZZARI, JEAN-PIERRE | Director | Sale | 12,600 | $3.58 | $45108.00 |
| 2025-06-13 | AZELBY, ROBERT | Director | Sale | 12,600 | $3.58 | $45108.00 |
| 2025-06-11 | REDMILE, GROUP, LLC | 10% Owner | Buy | 15,734,267 | $3.43 | $54.00M |
| 2025-06-11 | REDMILE, GROUP, LLC | 10% Owner | Buy | 12,465,234 | $3.43 | $42.78M |
| 2025-06-03 | SQUARER, RON | Director | Buy | 40,000 | — | — |
| 2025-06-03 | SANDOR, VICTOR | Director | Buy | 40,000 | — | — |
| 2025-06-03 | MONGES, VIVIANE | Director | Buy | 40,000 | — | — |
| 2025-06-03 | HUG, PETER | Director | Buy | 40,000 | — | — |
| 2025-06-03 | COUGHLIN, TIMOTHY | Director | Buy | 80,000 | — | — |
| 2025-06-03 | COUGHLIN, TIMOTHY | Director | Buy | 40,000 | — | — |
| 2025-06-03 | BIZZARI, JEAN-PIERRE | Director | Buy | 40,000 | — | — |
| 2025-06-03 | AZELBY, ROBERT | Director | Buy | 40,000 | — | — |
| 2025-05-15 | WILD, HANS PETER | 10% Owner | Buy | 9,788,944 | — | — |
| 2025-05-15 | PFISTERER, THOMAS | See Explanations | Sale | 451,856 | — | — |
| 2025-05-06 | MALLIK, AMEET | Director, Chief Executive Officer | Sale | 26,758 | $1.29 | $34517.82 |
| 2025-02-13 | ZAKI, MOHAMED | Chief Medical Officer | Buy | 230,000 | $1.61 | $370300.00 |
| 2025-02-13 | MALLIK, AMEET | Director, Chief Executive Officer | Buy | 650,000 | $1.61 | $1.05M |
| 2025-02-13 | KALLEBO, LISA MICHELLE | Chief Accounting Officer | Buy | 41,900 | $1.61 | $67459.00 |
| 2025-02-13 | GRAHAM, PETER J | Chief Legal Officer | Buy | 220,000 | $1.61 | $354200.00 |
| 2025-02-13 | CARMONA, JOSE | Chief Financial Officer | Buy | 240,000 | $1.61 | $386400.00 |
| 2024-12-11 | REDMILE, GROUP, LLC | 10% Owner | Buy | 50,000 | $3.81 | $190500.00 |
| 2024-12-06 | ZAKI, MOHAMED | Chief Medical Officer | Sale | 37,112 | $3.13 | $116160.56 |
| 2024-12-06 | MALLIK, AMEET | Director, Chief Executive Officer | Sale | 238,343 | $3.13 | $746013.59 |
| 2024-12-06 | KALLEBO, LISA MICHELLE | Chief Accounting Officer | Sale | 6,503 | $3.13 | $20354.39 |
| 2024-12-06 | GRAHAM, PETER J | Chief Legal Officer | Sale | 41,458 | $3.13 | $129763.54 |
| 2024-12-06 | CARMONA, JOSE | Chief Financial Officer | Sale | 48,108 | $3.13 | $150578.04 |
| 2024-12-04 | REDMILE, GROUP, LLC | 10% Owner | Sale | 26,656 | $2.07 | $55177.92 |
| 2024-12-04 | REDMILE, GROUP, LLC | 10% Owner | Buy | 50,672 | $2.07 | $104891.04 |
| 2024-12-04 | REDMILE, GROUP, LLC | 10% Owner | Sale | 25,352 | $2.07 | $52478.64 |
| 2024-07-01 | REDMILE, GROUP, LLC | 10% Owner | Buy | 400,000 | $2.81 | $1.12M |
| 2024-06-17 | SQUARER, RON | Director | Sale | 6,995 | $2.89 | $20215.55 |
| 2024-06-17 | SANDOR, VICTOR | Director | Sale | 6,995 | $2.89 | $20215.55 |
| 2024-06-17 | PFISTERER, THOMAS | Director | Sale | 1,437 | $2.89 | $4152.93 |
| 2024-06-17 | MONGES, VIVIANE | Director | Sale | 1,437 | $2.89 | $4152.93 |
| 2024-06-17 | HUG, PETER | Director | Sale | 1,193 | $2.89 | $3447.77 |
| 2024-06-17 | BIZZARI, JEAN-PIERRE | Director | Sale | 6,995 | $2.89 | $20215.55 |
| 2024-06-17 | AZELBY, ROBERT | Director | Sale | 6,995 | $2.89 | $20215.55 |
| 2024-06-13 | SQUARER, RON | Director | Buy | 40,000 | — | — |
| 2024-06-13 | SANDOR, VICTOR | Director | Buy | 40,000 | — | — |
| 2024-06-13 | PFISTERER, THOMAS | Director | Buy | 40,000 | — | — |
| 2024-06-13 | MONGES, VIVIANE | Director | Buy | 40,000 | — | — |
| 2024-06-13 | HUG, PETER | Director | Buy | 40,000 | — | — |
| 2024-06-13 | BIZZARI, JEAN-PIERRE | Director | Buy | 40,000 | — | — |
| 2024-06-13 | AZELBY, ROBERT | Director | Buy | 40,000 | — | — |
Frequently asked questions
Are ADCT insiders buying or selling?
Over the transactions on record, ADCT insiders have been net sellers, with about $23.27M in stock sold across 38 sales, against 16 open-market purchases.
Does insider selling at ADCT mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which ADCT insiders are selling the most?
Recent selling is concentrated in a few names. REDMILE, GROUP, LLC accounts for the largest share on record, with about $19.74M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.