Skip to content

Insider · CIK 0001753231

Joris Wilms

cooofficer

Files at YMAB (Y-mAbs Therapeutics, Inc.). First filing Aug 27, 2024, latest Aug 27, 2024.

In brief

Joris Wilms files SEC Form 4 as COO at YMAB (Y-mAbs Therapeutics, Inc.). Since Aug 27, 2024, Joris Wilms has reported 0 open-market buys worth $0 and 1 open-market sell worth $73k, the latest filed on Aug 27, 2024.

A track record needs three past buys with six months of prices behind them; Joris Wilms has 0, so none is measured yet.

The newest scored trade: sold $73k of YMAB on Aug 26, 2024, filed Aug 27, 2024, scored 41 (moderate).

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $73k sold

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
41Moderate
YMABsell 2
Y-mAbs Therapeutics, Inc.
$73k
5,000 shares
-14%-

Planned sales

Form 144 notices this insider filed before selling restricted or control stock, newest first.

FiledCompanySharesValueSale datePast 3 months
Aug 26, 2024 YMAB
Y-mAbs Therapeutics, Inc.
5,000
0.01% of outstanding
$73kAug 26, 2024none

Transactions

Every row this insider has filed, 16 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
UTender of shares
Common Stock
-12,799$8.60$110k0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Common Stock
-39,301--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-20,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-20,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-20,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-20,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-20,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-32,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-20,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-35,700--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-32,000--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-35,700--0Sep 18, 2025
Sep 16, 2025YMAB
Y-mAbs Therapeutics, Inc.
DDisposition to issuer
Employee Stock Option (right to buy)derivative
-42,900--0Sep 18, 2025
Aug 26, 2024YMAB
Y-mAbs Therapeutics, Inc.
SOpen-market sale
Common Stock
-5,000$14.69$73k30,600Aug 27, 2024
Jan 18, 2024YMAB
Y-mAbs Therapeutics, Inc.
AGrant or award
Common Stock
+17,800$0.00$035,600Jan 22, 2024
Jan 18, 2024YMAB
Y-mAbs Therapeutics, Inc.
AGrant or award
Employee Stock Option (right to buy)derivative
+35,700$0.00$035,700Jan 22, 2024

Questions about Joris Wilms

Answered from the filings on this page, as of the latest one.

Is Joris Wilms buying or selling?

Not in the last 12 months. Joris Wilms's latest open-market trade on SEC Form 4 was sold $73k of YMAB on Aug 26, 2024.

How did Joris Wilms's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Joris Wilms has 0.

Where does Joris Wilms file Form 4?

Joris Wilms has filed Form 4 at YMAB (Y-mAbs Therapeutics, Inc.) as SVP & CHIEF OPERATING OFFICER. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Joris Wilms: insider trades and track record | InsiderTell