YMABUnknownMicro-Cap
Y-mAbs Therapeutics, Inc. Insider Trading Activity
Every SEC Form 4 insider transaction reported for Y-mAbs Therapeutics, Inc. (YMAB), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are YMAB insiders buying or selling?
Y-mAbs Therapeutics, Inc. insiders reported 18 open-market buys ($23.6M) and 139 sells ($103.8M) across 157 Form 4 filings — a net selling position of $80.2M.
Source: SEC EDGAR Form 4
Key Statistics (as of Mar 12, 2025)
Total Form 4 filings
157
SEC EDGAR
Insider filers
16
Insider buys (18)
$23.6M
Insider sells (139)
$103.8M
Insider sentiment
Net sellingNet insider flow of $80.2M in net selling.
Recent YMAB insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Mar 12, 2025 | Michael J Rossi | PRESIDENT & CEO | Sale | 3.9K | $5.20 | $20.4K |
| Mar 12, 2025 | Thomas Gad | CHIEF BUSINESS OFFICER | Sale | 10.8K | $5.23 | $56.5K |
| Sep 18, 2024 | Thomas Gad | CHIEF BUSINESS OFFICER | Sale | 95.0K | $13.31 | $1.3M |
| Aug 30, 2024 | Torben Lund-Hansen | SVP & CHIEF TECHNICAL OFFICER | Sale | 50.0K | $15.37 | $768.5K |
| Aug 27, 2024 | Joris Wilms | SVP & CHIEF OPERATING OFFICER | Sale | 5.0K | $14.69 | $73.5K |
| Jun 11, 2024 | Gerard Ber | Director | Sale | 722 | $12.00 | $8.7K |
| Jun 11, 2024 | Thomas Gad | CHIEF BUSINESS OFFICER | Sale | 70.0K | $12.02 | $841.0K |
| Jun 1, 2024 | Bo Kruse | EVP, CFO, SECRY & TREAS. | Sale | 60.0K | $12.05 | $723.1K |
| May 23, 2024 | Thomas Gad | CHIEF BUSINESS OFFICER | Sale | 32.4K | $12.23 | $395.6K |
| Mar 7, 2024 | Vignesh Rajah | SVP & CHIEF MEDICAL OFFICER | Sale | 1.7K | $16.53 | $28.3K |
| Mar 7, 2024 | Thomas Gad | CHIEF BUSINESS OFFICER | Sale | 3.9K | $16.44 | $64.1K |
| Mar 7, 2024 | Susan Laura Smith | SVP & CHIEF COMMERCIAL OFFICER | Sale | 1.7K | $16.55 | $27.8K |
| Dec 16, 2023 | Thomas Gad | Chief Business Officer | Sale | 150.0K | $6.67 | $1.0M |
| Dec 12, 2023 | WG Biotech ApS | Director | Purchase | 6.5K | $6.85 | $44.2K |
| Dec 12, 2023 | Johan Wedell-Wedellsborg | Director | Purchase | 6.5K | $6.85 | $44.2K |
| Dec 11, 2023 | WG Biotech ApS | Director | Purchase | 127.5K | $6.98 | $890.4K |
| Dec 11, 2023 | Johan Wedell-Wedellsborg | Director | Purchase | 127.5K | $6.98 | $890.4K |
| Dec 1, 2023 | WG Biotech ApS | Director | Purchase | 51.8K | $5.97 | $309.5K |
| Dec 1, 2023 | Johan Wedell-Wedellsborg | Director | Purchase | 51.8K | $5.97 | $309.5K |
| Nov 29, 2023 | Johan Wedell-Wedellsborg | Director | Purchase | 93.2K | $5.59 | $521.3K |
| Nov 29, 2023 | WG Biotech ApS | Director | Purchase | 93.2K | $5.59 | $521.3K |
| Nov 22, 2023 | Thomas Gad | Chief Business Officer | Sale | 150.0K | $5.30 | $795.4K |
| May 17, 2023 | Johan Wedell-Wedellsborg | Director | Purchase | 101.7K | $9.65 | $981.4K |
| May 17, 2023 | WG Biotech ApS | Director | Purchase | 101.7K | $9.65 | $981.4K |
| Nov 17, 2022 | Vignesh Rajah | SVP & CMO | Purchase | 1.2K | $4.92 | $5.9K |
Showing the 25 most recent of 157 Form 4 filings for Y-mAbs Therapeutics, Inc..
Most active YMAB insiders
- Thomas Gad86 filings
- Bo Kruse21 filings
- Johan Wedell-Wedellsborg16 filings
- WG Biotech ApS10 filings
- Mahiuddin Ahmed4 filings
Ask anything about YMAB insider activity
Use Trabud's AI agent to query Y-mAbs Therapeutics, Inc.'s Form 4 history in plain English — "Show me YMAB CEO purchases this year" or compare it against any other ticker.
Open the AI agentYMAB insider trading FAQ
Are Y-mAbs Therapeutics, Inc. insiders buying or selling?
Across 157 SEC Form 4 filings, Y-mAbs Therapeutics, Inc. (YMAB) insiders reported 18 open-market purchases totaling $23.6M and 139 sales totaling $103.8M. That is a net selling position of $80.2M.
How many insiders trade YMAB stock?
16 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Y-mAbs Therapeutics, Inc.. The most recent filing was accepted on Mar 12, 2025.
Where does Trabud get YMAB insider trading data?
All YMAB insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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