Every filing, one decision per row.

Transactions

One row for every decision an insider filed. Open-market buying and selling only. Vesting, grants and the shares withheld to pay the tax on them are not decisions.

Direction: Bought Minimum: $10M

Company

Date

Insider

Role

Action ?

Shares

Amount

Of holding

WRB W. R. Berkley Corporation

12 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

256,041

$17.60M

0.5%

AKTS Aktis Oncology, Inc.

12 Jan 2026

Kim Helen Susan

Director indirect

Bought 2×

835,000

$15.03M

17.3%

AKTS Aktis Oncology, Inc.

12 Jan 2026

Vida Ventures II, LLC

10% owner indirect

Bought 2×

835,000

$15.03M

17.3%

WRB W. R. Berkley Corporation

9 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 3×

275,000

$18.96M

0.5%

WRB W. R. Berkley Corporation

8 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 3×

195,000

$13.68M

0.4%

WRB W. R. Berkley Corporation

7 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 2×

265,000

$18.15M

0.5%

WRB W. R. Berkley Corporation

6 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 2×

215,288

$15.08M

0.4%

WRB W. R. Berkley Corporation

5 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 3×

200,930

$14.18M

0.4%

WRB W. R. Berkley Corporation

2 Jan 2026

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

237,734

$16.49M

0.5%

WRB W. R. Berkley Corporation

31 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

230,000

$16.16M

0.5%

UA Under Armour, Inc.

30 Dec 2025

WATSA V PREM ET AL

10% owner indirect

Bought

11,504,478

$59.14M

37.8%

WRB W. R. Berkley Corporation

30 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

205,000

$14.52M

0.4%

WRB W. R. Berkley Corporation

29 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

205,000

$14.51M

0.4%

GDV GABELLI DIVIDEND & INCOME TRUST

26 Dec 2025

GABELLI MARIO J

Director indirect

Bought 3×

3,600,000

$36.00M

opened

GDV GABELLI DIVIDEND & INCOME TRUST

26 Dec 2025

GABELLI MARIO J

Director

Bought

2,218,500

$22.19M

70.8%

WRB W. R. Berkley Corporation

26 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

220,000

$15.52M

0.4%

GRX Gabelli Healthcare & WellnessRx Trust

26 Dec 2025

GABELLI MARIO J

Director

Bought

1,000,000

$10.00M

opened

WRB W. R. Berkley Corporation

24 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

220,000

$15.51M

0.4%

WRB W. R. Berkley Corporation

23 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 2×

234,573

$16.49M

0.5%

UA Under Armour, Inc.

22 Dec 2025

WATSA V PREM ET AL

10% owner indirect

Bought

5,383,513

$24.38M

27.9%

WRB W. R. Berkley Corporation

22 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan 2×

202,000

$14.19M

0.4%

UA Under Armour, Inc.

22 Dec 2025

WATSA V PREM ET AL

10% owner indirect

Bought

2,355,641

$10.26M

72.6%

WRB W. R. Berkley Corporation

19 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

204,000

$14.18M

0.4%

MDLN Medline Inc.

18 Dec 2025

GIC Private Ltd

10% owner

Bought

12,586,206

$365.00M

85.9%

MDLN Medline Inc.

18 Dec 2025

Mills Andrew J.

Director indirect

Bought

2,586,206

$75.00M

opened

MDLN Medline Inc.

18 Dec 2025

Mills Charles N.

Director indirect

Bought 2×

2,579,310

$74.80M

opened

KOD Kodiak Sciences Inc.

18 Dec 2025

BAKER BROS. ADVISORS LP

Director indirect

Bought 2×

2,608,696

$60.00M

16.6%

WRB W. R. Berkley Corporation

18 Dec 2025

MITSUI SUMITOMO INSURANCE CO LTD

10% owner

Bought on a plan

204,350

$14.18M

0.4%

VLOS Velos Acquisition I Corp.

17 Dec 2025

CANTOR FITZGERALD & CO.

10% owner

Bought

3,529,081

$38.11M

83.0%

IMVT Immunovant, Inc.

12 Dec 2025

Roivant Sciences Ltd.

Director

Bought

16,666,666

$350.00M

17.2%

12 Dec 2025

Smith Jeffrey C

Director indirect

Bought

3,200,000

$55.59M

13.3%

KYMR Kymera Therapeutics, Inc.

11 Dec 2025

BAKER BROS. ADVISORS LP

Director indirect

Bought 2×

2,005,813

$172.50M

33.7%

11 Dec 2025

Smith Jeffrey C

Director indirect

Bought

3,177,694

$55.39M

15.2%

WVE Wave Life Sciences, Inc.

11 Dec 2025

10% owner indirect

Bought

1,470,000

$27.93M

8.8%

SEVN Seven Hills Realty Trust

11 Dec 2025

PORTNOY ADAM D.

Director indirect

Bought

2,015,748

$17.44M

78.7%

SEVN Seven Hills Realty Trust

11 Dec 2025

Tremont Realty Capital LLC

10% owner indirect

Bought

2,015,748

$17.44M

78.7%

MGM MGM Resorts

5 Dec 2025

10% owner

Bought

1,098,748

$39.88M

1.7%

5 Dec 2025

Director indirect

Bought

96,000

$25.02M

3.3%

CBIO CRESCENT BIOPHARMA, INC.

4 Dec 2025

Fairmount Funds Management LLC

Director indirect

Bought

1,360,000

$18.24M

98.0%

HYMC HYCROFT MINING HOLDING CORP

3 Dec 2025

10% owner indirect

Bought

2,340,824

$24.11M

8.6%

UTI UNIVERSAL TECHNICAL INSTITUTE INC

2 Dec 2025

Coliseum Capital Management, LLC

Director indirect

Bought

467,020

$11.40M

15.8%

26 Nov 2025

Director indirect

Bought 3×

125,000

$24.88M

32.1%

25 Nov 2025

Director indirect

Bought 8×

389,047

$75.40M

opened

BHC Bausch Health Companies Inc.

25 Nov 2025

PAULSON & CO. INC.

10% owner indirect

Bought

2,500,000

$15.63M

3.5%

VRCA Verrica Pharmaceuticals Inc.

25 Nov 2025

Director indirect

Bought

2,750,762

$11.67M

460%

STAA STAAR SURGICAL CO

21 Nov 2025

BROADWOOD PARTNERS, L.P.

10% owner

Bought

797,486

$22.22M

5.6%

ET Energy Transfer LP

20 Nov 2025

Director indirect

Bought

1,000,000

$16.81M

1.0%

STAA STAAR SURGICAL CO

20 Nov 2025

BROADWOOD PARTNERS, L.P.

10% owner

Bought

393,382

$10.68M

2.8%

ET Energy Transfer LP

19 Nov 2025

Director indirect

Bought

1,000,000

$16.95M

1.0%

CTRI Centuri Holdings, Inc.

14 Nov 2025

10% owner indirect

Bought

3,488,372

$75.00M

32.2%

Showing 251–300 of 331.