YMAB
insider transactionsY-mAbs Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Other·D
SVP, Danyelza Bus. Unit Head
—
142.6K sh
Own -100%
-
Other·D
SVP, General Counsel & Secry
—
42.9K sh
Own -100%
-
Other·D
SVP, General Counsel & Secry
—
142.6K sh
Own -100%
-
Other·D
SVP, General Counsel & Secry
—
21.5K sh
Own -100%
-
Other·U
Director,TenPercentOwner
$39.2M
4.6M sh · $8.60
-
Other·D
Director
—
14.2K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
14.5K sh
Own -100%
-
Other·D
Director
—
8.0K sh
Own -100%
-
Other·D
Director
—
13.9K sh
Own -100%
-
Other·D
Director
—
16.0K sh
Own -100%
-
Other·D
Director
—
33.5K sh
Own -100%
-
Other·D
Director
—
25.1K sh
Own -100%
-
Other·U
Director
$18.9M
2.2M sh · $8.60
-
Other·U
Director
$271.8K
31.6K sh · $8.60
-
Other·D
Director
—
33.5K sh
Own -100%
-
Other·D
Director
—
14.5K sh
Own -100%
-
Other·D
Director
—
32.0K sh
Own -100%
-
Other·D
Director
—
16.0K sh
Own -100%
-
Other·D
Director
—
13.9K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
16.0K sh
Own -100%
-
Other·D
Director
—
25.1K sh
Own -100%
-
Other·U
Director
$50.1K
5.8K sh · $8.60
-
Other·D
Director,TenPercentOwner
—
16.0K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
33.5K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
11.0K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
16.0K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
32.0K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
36.0K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
13.9K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
14.5K sh
Own -100%
-
Other·D
Director,TenPercentOwner
—
11.0K sh
Own -100%
-
Other·U
Director,TenPercentOwner
$50.1K
5.8K sh · $8.60
-
Other·U
Director,TenPercentOwner
$39.2M
4.6M sh · $8.60
-
Other·D
Director,TenPercentOwner
—
25.1K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
20.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
20.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
20.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
20.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
42.9K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
35.7K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
32.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
35.7K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
20.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
32.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
20.0K sh
Own -100%
-
Other·D
SVP & CHIEF OPERATING OFFICER
—
39.3K sh
Own -100%
-
Other·U
SVP & CHIEF OPERATING OFFICER
$110.1K
12.8K sh · $8.60
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
52.6K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
18.0K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
210.7K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
214.2K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
615.2K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
18.0K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
18.0K sh
Own -100%
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
52.6K sh
Own -100%
-
Other·U
Rossi Michael J KEY
PRESIDENT & CEO
$68.6K
8.0K sh · $8.60
-
Other·D
Rossi Michael J KEY
PRESIDENT & CEO
—
129.1K sh
Own -100%
-
Other·D
Director
—
24.0K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
16.0K sh
Own -100%
-
Other·D
Director
—
13.9K sh
Own -100%
-
Other·D
Director
—
16.0K sh
Own -100%
-
Other·D
Director
—
33.5K sh
Own -100%
-
Other·D
Director
—
14.5K sh
Own -100%
-
Other·D
Director
—
25.1K sh
Own -100%
-
Other·D
Director
$50.1K
5.8K sh · $8.60
Own -100%
-
Other·D
EVP, CFO and Treasurer
—
15.9K sh
Own -100%
-
Other·D
EVP, CFO and Treasurer
—
15.9K sh
Own -100%
-
Other·D
EVP, CFO and Treasurer
—
63.5K sh
Own -100%
-
Other·D
EVP, CFO and Treasurer
—
170.0K sh
Own -100%
-
Other·D
EVP, CFO and Treasurer
—
77.8K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
75.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
242.2K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
132.5K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
64.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
16.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
16.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
143.2K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
16.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
100.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
107.5K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
130.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
91.5K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
110.0K sh
Own -100%
-
Other·D
CHIEF BUSINESS OFFICER
—
60.0K sh
Own -100%
-
Other·U
CHIEF BUSINESS OFFICER
$582.1K
67.7K sh · $8.60
-
Other·U
CHIEF BUSINESS OFFICER
$2.1M
245.5K sh · $8.60
-
Other·D
CHIEF BUSINESS OFFICER
—
60.2K sh
Own -100%
-
Other·U
CHIEF BUSINESS OFFICER
$516.0K
60.0K sh · $8.60
-
Other·D
Director
—
16.0K sh
Own -100%
-
Other·D
Director
—
14.5K sh
Own -100%
-
Other·D
Director
—
13.9K sh
Own -100%
-
Other·D
Director
—
33.5K sh
Own -100%
-
Other·D
Director
—
11.0K sh
Own -100%
-
Other·D
Director
—
27.0K sh
Own -100%
-
Other·D
Director
—
25.1K sh
Own -100%
-
Other·U
Director
$50.1K
5.8K sh · $8.60
-
Grant·A
Director,TenPercentOwner
$0
33.5K sh
Own New
-
Grant·A
Director,TenPercentOwner
$0
25.1K sh
Own +431%
-
Grant·A
Director
$0
33.5K sh
Own New
-
Grant·A
Director
$0
25.1K sh
Own +431%
-
Grant·A
Director
$0
33.5K sh
Own New
-
Grant·A
Director
$0
25.1K sh
Own +79%
-
Grant·A
Director
$0
33.5K sh
Own New
-
Grant·A
Director
$0
25.1K sh
Own +431%
-
Grant·A
Director
$0
33.5K sh
Own New
-
Grant·A
Director
$0
25.1K sh
Own +431%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Sep 16, 2025 | Gentilcore Douglas J | Other D | 142.6K | — |
| Sep 16, 2025 | LaRocca John | Other D | 42.9K | — |
| Sep 16, 2025 | LaRocca John | Other D | 142.6K | — |
| Sep 16, 2025 | LaRocca John | Other D | 21.5K | — |
| Sep 16, 2025 | WG Biotech ApS | Other U | 4.6M | $39.2M |
| Sep 16, 2025 | HEALY JAMES | Other D | 14.2K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 11.0K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 11.0K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 14.5K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 8.0K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 13.9K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 16.0K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 33.5K | — |
| Sep 16, 2025 | HEALY JAMES | Other D | 25.1K | — |
| Sep 16, 2025 | HEALY JAMES | Other U | 2.2M | $18.9M |
| Sep 16, 2025 | HEALY JAMES | Other U | 31.6K | $271.8K |
| Sep 16, 2025 | TYAGI ASHU | Other D | 33.5K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 14.5K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 32.0K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 16.0K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 13.9K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 11.0K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 11.0K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 16.0K | — |
| Sep 16, 2025 | TYAGI ASHU | Other D | 25.1K | — |
| Sep 16, 2025 | TYAGI ASHU | Other U | 5.8K | $50.1K |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 16.0K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 33.5K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 11.0K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 16.0K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 32.0K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 36.0K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 13.9K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 14.5K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 11.0K | — |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other U | 5.8K | $50.1K |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other U | 4.6M | $39.2M |
| Sep 16, 2025 | Wedell-Wedellsborg Johan | Other D | 25.1K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 20.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 20.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 20.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 20.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 42.9K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 35.7K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 32.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 35.7K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 20.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 32.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 20.0K | — |
| Sep 16, 2025 | Wilms Joris | Other D | 39.3K | — |
| Sep 16, 2025 | Wilms Joris | Other U | 12.8K | $110.1K |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 52.6K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 18.0K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 210.7K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 214.2K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 615.2K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 18.0K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 18.0K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 52.6K | — |
| Sep 16, 2025 | Rossi Michael J KEY | Other U | 8.0K | $68.6K |
| Sep 16, 2025 | Rossi Michael J KEY | Other D | 129.1K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 24.0K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 11.0K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 11.0K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 16.0K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 13.9K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 16.0K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 33.5K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 14.5K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 25.1K | — |
| Sep 16, 2025 | GILL DAVID N | Other D | 5.8K | $50.1K |
| Sep 16, 2025 | PFREUNDSCHUH PETER P. KEY | Other D | 15.9K | — |
| Sep 16, 2025 | PFREUNDSCHUH PETER P. KEY | Other D | 15.9K | — |
| Sep 16, 2025 | PFREUNDSCHUH PETER P. KEY | Other D | 63.5K | — |
| Sep 16, 2025 | PFREUNDSCHUH PETER P. KEY | Other D | 170.0K | — |
| Sep 16, 2025 | PFREUNDSCHUH PETER P. KEY | Other D | 77.8K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 75.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 242.2K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 132.5K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 64.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 16.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 16.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 143.2K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 16.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 100.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 107.5K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 130.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 91.5K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 110.0K | — |
| Sep 16, 2025 | Gad Thomas | Other D | 60.0K | — |
| Sep 16, 2025 | Gad Thomas | Other U | 67.7K | $582.1K |
| Sep 16, 2025 | Gad Thomas | Other U | 245.5K | $2.1M |
| Sep 16, 2025 | Gad Thomas | Other D | 60.2K | — |
| Sep 16, 2025 | Gad Thomas | Other U | 60.0K | $516.0K |
| Sep 16, 2025 | Hamill Laura | Other D | 16.0K | — |
| Sep 16, 2025 | Hamill Laura | Other D | 14.5K | — |
| Sep 16, 2025 | Hamill Laura | Other D | 13.9K | — |
| Sep 16, 2025 | Hamill Laura | Other D | 33.5K | — |
| Sep 16, 2025 | Hamill Laura | Other D | 11.0K | — |
| Sep 16, 2025 | Hamill Laura | Other D | 27.0K | — |
| Sep 16, 2025 | Hamill Laura | Other D | 25.1K | — |
| Sep 16, 2025 | Hamill Laura | Other U | 5.8K | $50.1K |
| Jun 30, 2025 | Wedell-Wedellsborg Johan | Grant A | 33.5K | $0 |
| Jun 30, 2025 | Wedell-Wedellsborg Johan | Grant A | 25.1K | $0 |
| Jun 30, 2025 | Hamill Laura | Grant A | 33.5K | $0 |
| Jun 30, 2025 | Hamill Laura | Grant A | 25.1K | $0 |
| Jun 30, 2025 | HEALY JAMES | Grant A | 33.5K | $0 |
| Jun 30, 2025 | HEALY JAMES | Grant A | 25.1K | $0 |
| Jun 30, 2025 | GILL DAVID N | Grant A | 33.5K | $0 |
| Jun 30, 2025 | GILL DAVID N | Grant A | 25.1K | $0 |
| Jun 30, 2025 | TYAGI ASHU | Grant A | 33.5K | $0 |
| Jun 30, 2025 | TYAGI ASHU | Grant A | 25.1K | $0 |
About YMAB insider trading
This page tracks insider transactions for Y-mAbs Therapeutics, Inc. (YMAB) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.