About this data
What it is
When a company's officers, directors or owners of more than 10% buy or sell its stock, they must report the trade to the SEC on Form 4. This feed shows purchases and sales on the open market; stock grants, option exercises and shares withheld for tax are left out.
Who files it
The insider, usually through the company, within two business days of the trade.
How current
We collect new filings throughout the day on SEC business days.
Worth knowing
Sales are often routine: insiders sell to diversify, to pay taxes, or under a 10b5-1 plan set up months in advance. A purchase with their own money is less common, which is why many investors pay closer attention to it.

All of this comes from public filings.

Open-market trades per day, last 30 days

05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0
05001,000Oct 17 · Purchases: 0Oct 17 · Sales: 0Oct 17Oct 18 · Purchases: 0Oct 18 · Sales: 0Oct 19 · Purchases: 29Oct 19 · Sales: 159Oct 20 · Purchases: 45Oct 20 · Sales: 209Oct 21 · Purchases: 38Oct 21 · Sales: 183Oct 21Oct 22 · Purchases: 50Oct 22 · Sales: 130Oct 23 · Purchases: 77Oct 23 · Sales: 126Oct 24 · Purchases: 1Oct 24 · Sales: 0Oct 25 · Purchases: 0Oct 25 · Sales: 0Oct 25Oct 26 · Purchases: 60Oct 26 · Sales: 171Oct 27 · Purchases: 27Oct 27 · Sales: 217Oct 28 · Purchases: 44Oct 28 · Sales: 135Oct 29 · Purchases: 35Oct 29 · Sales: 199Oct 29Oct 30 · Purchases: 68Oct 30 · Sales: 270Oct 31 · Purchases: 3Oct 31 · Sales: 0Nov 1 · Purchases: 2Nov 1 · Sales: 0Nov 2 · Purchases: 79Nov 2 · Sales: 826Nov 2Nov 3 · Purchases: 66Nov 3 · Sales: 337Nov 4 · Purchases: 67Nov 4 · Sales: 535Nov 5 · Purchases: 108Nov 5 · Sales: 458Nov 6 · Purchases: 137Nov 6 · Sales: 390Nov 6Nov 7 · Purchases: 0Nov 7 · Sales: 0Nov 8 · Purchases: 0Nov 8 · Sales: 0Nov 9 · Purchases: 110Nov 9 · Sales: 457Nov 10 · Purchases: 97Nov 10 · Sales: 406Nov 10Nov 11 · Purchases: 98Nov 11 · Sales: 330Nov 12 · Purchases: 54Nov 12 · Sales: 167Nov 13 · Purchases: 23Nov 13 · Sales: 28Nov 14 · Purchases: 0Nov 14 · Sales: 0Nov 14Nov 15 · Purchases: 0Nov 15 · Sales: 0

Purchases Sales

By trade date. Insiders have two business days to file, so the most recent days fill in later.

Latest open-market insider trades

Reset

Showing: ticker WRB

Latest open-market insider trades
TradedInsiderCompanyTypeSharesPriceValueFiling
Mar 3, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy73,185$72.52$5.3M BuyForm 4 ↗
Mar 3, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy38,991$71.60$2.8M BuyForm 4 ↗
Mar 2, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy100,897$73.20$7.4M BuyForm 4 ↗
Mar 2, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy45,103$72.29$3.3M BuyForm 4 ↗
Feb 27, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy147,000$71.63$10.5M BuyForm 4 ↗
Feb 26, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy7,509$72.11$541.5K BuyForm 4 ↗
Feb 26, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy145,491$71.65$10.4M BuyForm 4 ↗
Feb 25, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy14,356$71.77$1.0M BuyForm 4 ↗
Feb 25, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy154,512$71.39$11.0M BuyForm 4 ↗
Feb 24, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy61,594$71.28$4.4M BuyForm 4 ↗
Feb 24, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy103,192$70.52$7.3M BuyForm 4 ↗
Feb 23, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy16,410$71.80$1.2M BuyForm 4 ↗
Feb 23, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy203,590$71.09$14.5M BuyForm 4 ↗
Feb 20, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy160,582$70.80$11.4M BuyForm 4 ↗
Feb 19, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy44,014$71.50$3.1M BuyForm 4 ↗
Feb 19, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy300,986$70.53$21.2M BuyForm 4 ↗
Feb 18, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy45,250$70.96$3.2M BuyForm 4 ↗
Feb 18, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy239,750$70.58$16.9M BuyForm 4 ↗
Feb 17, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy281,386$71.19$20.0M BuyForm 4 ↗
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy280$71.18$19.9K BuyForm 4 ↗
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy4,314$70.30$303.3K BuyForm 4 ↗
Feb 13, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy15,406$69.73$1.1M BuyForm 4 ↗
Feb 12, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy2,401$72.76$174.7K BuyForm 4 ↗
Feb 12, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy17,599$71.88$1.3M BuyForm 4 ↗
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy11,163$71.45$797.6K BuyForm 4 ↗
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy3,578$70.50$252.2K BuyForm 4 ↗
Feb 11, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy9,289$69.59$646.4K BuyForm 4 ↗
Feb 10, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy12,082$69.92$844.8K BuyForm 4 ↗
Feb 10, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy21,884$69.09$1.5M BuyForm 4 ↗
Feb 9, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy4,048$70.32$284.7K BuyForm 4 ↗
Feb 9, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy35,952$69.27$2.5M BuyForm 4 ↗
Feb 6, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy4,306$71.39$307.4K BuyForm 4 ↗
Feb 6, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy15,694$70.46$1.1M BuyForm 4 ↗
Feb 5, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy13,472$71.25$959.9K BuyForm 4 ↗
Feb 5, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy6,528$70.79$462.1K BuyForm 4 ↗
Feb 4, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy22,415$70.25$1.6M BuyForm 4 ↗
Feb 4, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy2,585$69.77$180.4K BuyForm 4 ↗
Feb 3, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy31,653$68.87$2.2M BuyForm 4 ↗
Feb 3, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy8,347$67.75$565.5K BuyForm 4 ↗
Feb 2, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy13,159$68.42$900.3K BuyForm 4 ↗
Feb 2, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy237,062$67.71$16.1M BuyForm 4 ↗
Jan 30, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy195,000$68.36$13.3M BuyForm 4 ↗
Jan 29, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy27,718$68.56$1.9M BuyForm 4 ↗
Jan 29, 2026Mitsui Sumitomo Insurance Co Ltd
10% owner
WRB
W.R. Berkley Corporation
Buy262,282$68.08$17.9M BuyForm 4 ↗
Jan 28, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy28,577$67.89$1.9M BuyForm 4 ↗
Jan 28, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy280,354$67.58$18.9M BuyForm 4 ↗
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy2,671$69.04$184.4K BuyForm 4 ↗
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy8,582$68.56$588.4K BuyForm 4 ↗
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy325,960$67.40$22.0M BuyForm 4 ↗
Jan 27, 2026MS&AD Insurance Group Holdings, Inc.
10% owner
WRB
W.R. Berkley Corporation
Buy11,987$66.87$801.6K BuyForm 4 ↗

The newest 50 items, most recent first. Every row links to its original filing. Updated Nov 15, 2026, 5:50 PM EST.

Download CSV The rows of this feed, with the filters above. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.

Other feeds: Congressional trades · Executive-branch trades · Bills in Congress · Roll-call votes · Corporate PAC donations · Lobbying · Capitol Hires · Lobbying and contracts · Government contracts · Planned insider sales · Executive pay · Ownership stakes (13D / 13G) · Institutional holdings (13F) · Short interest · Fails to deliver · Daily short volume · Wikipedia page views · App store ratings · H-1B visa applications · Stock splits · 8-K events · IPO filings · Deals · Private placements (Form D) · Merger clearances (HSR) · Layoff notices (WARN) · SEC enforcement · Patents · Clinical trial updates · FDA approvals and clearances