MRUS

Merus N.V.

Insider trading activity for Merus N.V., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

+$233.9M

net buying

Bought(10 · 1 insiders): $234.9M
Sold(2 · 1 insiders): $959.5K

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Dec 29, 2025	Genmab A/s	10% Owner	PBUY	75.9M	$97.00	$7.4B	-100.0%	Open the original filing on SEC.gov
Dec 29, 2025	Genmab A/s	10% Owner	PBUY	1.1M	$97.00	$102.1M	+1.5%	Open the original filing on SEC.gov
Dec 26, 2025	Genmab A/s	10% Owner	PBUY	142,610	$97.00	$13.8M	+0.2%	Open the original filing on SEC.gov
Dec 26, 2025	Genmab A/s	10% Owner	PBUY	2,978	$97.00	$288.9K	0.0%	Open the original filing on SEC.gov
Dec 24, 2025	Genmab A/s	10% Owner	PBUY	96,082	$97.00	$9.3M	+0.1%	Open the original filing on SEC.gov
Dec 23, 2025	Genmab A/s	10% Owner	PBUY	561,042	$97.00	$54.4M	+0.8%	Open the original filing on SEC.gov
Dec 22, 2025	Genmab A/s	10% Owner	PBUY	15,710	$97.00	$1.5M	+<0.1%	Open the original filing on SEC.gov
Dec 19, 2025	Genmab A/s	10% Owner	PBUY	66,264	$97.00	$6.4M	+<0.1%	Open the original filing on SEC.gov
Dec 18, 2025	Genmab A/s	10% Owner	PBUY	212,177	$97.00	$20.6M	+0.3%	Open the original filing on SEC.gov
Dec 17, 2025	Genmab A/s	10% Owner	PBUY	150,795	$97.00	$14.6M	+0.2%	Open the original filing on SEC.gov
Dec 16, 2025	Genmab A/s	10% Owner	PBUY★	120,752	$97.00	$11.7M	+0.2%	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	8,500	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	4,983	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	5,650	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	17,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	8,631	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	6,120	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	16,604	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	14,414	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	372,924	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	107,300	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Perry Gregory D	Chief Financial Officer…	DTOISS◆	100,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	83,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	20,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	104,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	12,714	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	3,900	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	107,300	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	125,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Silverman Peter B.	COO & GC	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Zohren Fabian	Chief Medical Officer	DTOISS◆	183,943	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Zohren Fabian	Chief Medical Officer	DTOISS◆	50,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Pucci Paolo	Director	DTOISS◆	17,262	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Pucci Paolo	Director	DTOISS◆	6,120	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Pucci Paolo	Director	DTOISS◆	16,604	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Pucci Paolo	Director	DTOISS◆	14,414	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Pucci Paolo	Director	DTOISS◆	8,844	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Pucci Paolo	Director	DTOISS◆	13,193	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	500	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	27,550	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	700	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	23,420	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	14,500	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	5,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	12,400	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	4,700	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	16,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	DTOISS◆	7,600	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Shuman Harry	VP Controller, PAO	UTENDR	11,002	$97.00	$1.1M	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	17,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	8,631	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	6,120	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	16,604	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	14,414	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	8,844	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Sandor Victor	Director	DTOISS◆	13,193	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	8,500	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	4,983	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	5,650	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	17,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	8,631	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	6,120	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	16,604	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	14,414	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	8,844	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Mehra Anand	Director	DTOISS◆	13,193	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	DTOISS◆	295,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	DTOISS◆	380,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	DTOISS◆	360,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	DTOISS◆	300,000	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	DTOISS◆	351,628	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	DTOISS◆	312,620	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	UTENDR	9,192	$97.00	$891.6K	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	UTENDR	9,192	$97.00	$891.6K	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	UTENDR	9,191	$97.00	$891.5K	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	UTENDR	9,191	$97.00	$891.5K	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	UTENDR	16,372	$97.00	$1.6M	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Lundberg Sven Ante	President, CEO & PEO	UTENDR	30,297	$97.00	$2.9M	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	8,500	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	7,669	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	14,149	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	8,631	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	6,120	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	16,604	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	14,414	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	8,844	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Kanavy Len	Director	DTOISS◆	13,193	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	8,500	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	4,983	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	5,650	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	8,631	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	6,120	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	16,604	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	14,414	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	8,844	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	DTOISS◆	13,193	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Iwicki Mark T	Director	UTENDR	73,576	$97.00	$7.1M	-100.0%	Open the original filing on SEC.gov
Dec 12, 2025	Haddock Jason	Director	DTOISS◆	17,688	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Haddock Jason	Director	DTOISS◆	13,193	—	—	—	Open the original filing on SEC.gov
Dec 12, 2025	Gowen Maxine	Director	DTOISS◆	7,957	—	—	—	Open the original filing on SEC.gov

PBUY$7.4B

Genmab A/s · 10% OwnerDec 29, 2025

75.9M sh @ $97.00 · -100.0% own

PBUY$102.1M

Genmab A/s · 10% OwnerDec 29, 2025

1.1M sh @ $97.00 · +1.5% own

PBUY$13.8M

Genmab A/s · 10% OwnerDec 26, 2025

142,610 sh @ $97.00 · +0.2% own

PBUY$288.9K

Genmab A/s · 10% OwnerDec 26, 2025

2,978 sh @ $97.00 · 0.0% own

PBUY$9.3M

Genmab A/s · 10% OwnerDec 24, 2025

96,082 sh @ $97.00 · +0.1% own

PBUY$54.4M

Genmab A/s · 10% OwnerDec 23, 2025

561,042 sh @ $97.00 · +0.8% own

PBUY$1.5M

Genmab A/s · 10% OwnerDec 22, 2025

15,710 sh @ $97.00 · +<0.1% own

PBUY$6.4M

Genmab A/s · 10% OwnerDec 19, 2025

66,264 sh @ $97.00 · +<0.1% own

PBUY$20.6M

Genmab A/s · 10% OwnerDec 18, 2025

212,177 sh @ $97.00 · +0.3% own

PBUY$14.6M

Genmab A/s · 10% OwnerDec 17, 2025

150,795 sh @ $97.00 · +0.2% own

PBUY★$11.7M

Genmab A/s · 10% OwnerDec 16, 2025

120,752 sh @ $97.00 · +0.2% own

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

8,500 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

4,983 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

5,650 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

17,000 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

8,631 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

6,120 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

16,604 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

14,414 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

372,924 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

107,300 sh

DTOISS◆—

Perry Gregory D · Chief Financial…Dec 12, 2025

100,000 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

83,000 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

20,000 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

104,000 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

12,714 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

3,900 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

107,300 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

125,000 sh

DTOISS◆—

Silverman Peter B. · COO & GCDec 12, 2025

50,000 sh

DTOISS◆—

Zohren Fabian · Chief Medical…Dec 12, 2025

183,943 sh

DTOISS◆—

Zohren Fabian · Chief Medical…Dec 12, 2025

50,000 sh

DTOISS◆—

Pucci Paolo · DirectorDec 12, 2025

17,262 sh

DTOISS◆—

Pucci Paolo · DirectorDec 12, 2025

6,120 sh

DTOISS◆—

Pucci Paolo · DirectorDec 12, 2025

16,604 sh

DTOISS◆—

Pucci Paolo · DirectorDec 12, 2025

14,414 sh

DTOISS◆—

Pucci Paolo · DirectorDec 12, 2025

8,844 sh

DTOISS◆—

Pucci Paolo · DirectorDec 12, 2025

13,193 sh

DTOISS◆—