Insider buying
When executives buy their own stock.
When a company’s executives, directors, or largest owners buy or sell its stock, US law requires them to report the trade publicly to the SEC on a document called Form 4. A CEO or CFO spending their own money on their own company’s shares is a signal worth watching: nobody knows the business better, and they only profit if the stock goes up.
Everything below comes from Form 4 filings our pipeline verified: open-market purchases of $50,000 or more that were not part of a pre-scheduled trading plan. The accumulation tracker looks back 90 days; the cluster and largest-buy sections cover the last 30.
Daily buy vs sell dollars
Open-market insider filings that passed the significance gates, last 30 days
Bought
$1.1B
30 days
Sold
$3.7B
30 days
Net flow
-$2.6B
selling leads
Active days
17
with gated filings
Buying by Role
Open-market buys that passed the significance gates, last 30 days.
Director
10% owner
Insider
President
Chairman, President & CEO
Executive Chairman
See Remarks
CFO
CEO
Founder and CEO
EVP, M&A and Corporate Affairs
President and CEO
Top Stocks by Insider Buying
Where the most verified buy dollars went, last 30 days.
JEF
APCX
SCTX
TYG
STDN
MPLT
CBIO
GSHD
EWAV
ENR
BOT
BSX
Accumulation Tracker
The slower, stronger pattern: 3 or more verified buys at the same company across two weeks to three months, totaling $250K+. One insider buying again and again, or several buying staggered over weeks, is the configuration research grades highest, especially when they keep paying higher prices as the stock rises.
| Ticker | Buys | Insiders | Total |
|---|---|---|---|
ARTVArtiva Biotherapeutics, Inc. | 5 | 1 | $5.1M |
BXSYBexil Investment Trust | 7 | 1 | $815K |
TSMTaiwan Semiconductor Manufacturing Co LTD | 5 | 2 | $810K |
MXFMexico Fund Inc. | 5 | 1 | $560K |
Window: the past 90 days of verified filings. Subscribers are alerted when a streak first qualifies and as it extends; this table shows every streak currently active.
Cluster Buys
One insider buying can mean many things. Several insiders at the same company buying within days of each other is much harder to explain away. We call 3 or more insiders buying $2.0M+ combined within 7 days a cluster buy; companies where 2 or more insiders bought this month are listed too.
Scribe Therapeutics, Inc.
$71.3M
12 insiders bought in the last 30 days (6 Directors and 6 10% owners).
Most recent buy Jul 29
Tortoise Energy Infrastructure Corp
$60.0M
3 insiders bought in the last 30 days (3 10% owners).
Most recent buy Jul 17
Crescent Biopharma, Inc.
$12.4M
4 insiders bought in the last 30 days (4 Directors).
Most recent buy Jul 20
Energizer Holdings, Inc.
$10.6M
6 insiders bought in the last 30 days (6 10% owners).
Most recent buy Jul 27
Boston Scientific Corp
$9.3M
3 insiders bought in the last 30 days (2 Directors and Chairman, President & CEO).
Most recent buy Aug 5
Netskope Inc.
$7.5M
5 insiders bought in the last 30 days (4 10% owners and Director).
Most recent buy Jul 14
Parabilis Medicines, Inc.
$6.9M
5 insiders bought in the last 30 days (5 Directors).
Most recent buy Jul 22
Five Star Bancorp
$6.2M
5 insiders bought in the last 30 days (5 Directors).
Most recent buy Jul 24
Artiva Biotherapeutics, Inc.
$5.1M
6 insiders bought in the last 30 days (6 Directors).
Most recent buy Jul 31
Columbia Financial, Inc./MD/
$4.5M
15 insiders bought in the last 30 days (1st Sr. EVP, CBO, 6 Directors, EVP, Corp Governance & Culture, President & CEO, EVP & CIO, SEVP&Head of Consumer Banking, EVP, CFO, SEVP & Chief Risk Officer, SEVP & Head Commercial Banking and Sr. EVP, COO).
Most recent buy Jul 22
Churchill Capital Corp Xiii
$3.5M
3 insiders bought in the last 30 days (See Remarks and 2 10% owners).
Most recent buy Aug 5
Albertsons Companies, Inc.
$2.5M
3 insiders bought in the last 30 days (EVP, M&A and Corporate Affairs, CEO and President & CFO).
Most recent buy Aug 3
MapLight Therapeutics, Inc.
$15.5M
2 insiders bought in the last 30 days (Director and 10% owner).
Most recent buy Jul 30
Goosehead Insurance, Inc.
$11.5M
2 insiders bought in the last 30 days (10% owner and Director).
Most recent buy Aug 4
East West Ave Acquisition Corp
$10.9M
2 insiders bought in the last 30 days (Insider and 10% owner).
Most recent buy Aug 4
B&R Technology Merger Corp
$6.9M
2 insiders bought in the last 30 days (10% owner and COO).
Most recent buy Jul 23
Apnimed, Inc.
$5.2M
2 insiders bought in the last 30 days (Director and 10% owner).
Most recent buy Aug 5
Market Technology Acquisition Corp
$4.5M
2 insiders bought in the last 30 days (10% owner and CEO).
Most recent buy Jul 28
Pfizer Inc.
$2.0M
2 insiders bought in the last 30 days (2 Directors).
Most recent buy Aug 5
NextCure, Inc.
$1.7M
2 insiders bought in the last 30 days (2 10% owners).
Most recent buy Aug 3
Fulcrum Therapeutics, Inc.
$1.5M
2 insiders bought in the last 30 days (2 10% owners).
Most recent buy Jul 20
Elevance Health, Inc.
$1.4M
2 insiders bought in the last 30 days (President and CEO and Director).
Most recent buy Jul 17
GBank Financial Holdings Inc.
$1.2M
7 insiders bought in the last 30 days (President/CEO (GBank), CEO and Executive Chairman, 3 Insiders, Director and SECRETARY).
Most recent buy Aug 5
Jersey Mike's Subs Inc.
$1.0M
5 insiders bought in the last 30 days (Chief Accounting Officer, See Remarks, President and COO, CFO and Chief People Officer).
Most recent buy Aug 4
Peoples Financial Corp /Ms/
$1.0M
5 insiders bought in the last 30 days (5 10% owners).
Most recent buy Aug 3
Taiwan Semiconductor Manufacturing Co LTD
$810K
2 insiders bought in the last 30 days (2 VPs).
Most recent buy Aug 4
Rhinebeck Bancorp, Inc.
$656K
4 insiders bought in the last 30 days (President & CEO, 2 Directors and EVP, Head of Comm Banking).
Most recent buy Jul 23
Tractor Supply Co /De/
$652K
3 insiders bought in the last 30 days (2 Directors and President & CEO).
Most recent buy Aug 5
ProQR Therapeutics N.v.
$612K
2 insiders bought in the last 30 days (Director and CEO).
Most recent buy Aug 3
Gran Tierra Energy Inc.
$400K
3 insiders bought in the last 30 days (3 10% owners).
Most recent buy Aug 5
Capstone Holding Corp
$334K
2 insiders bought in the last 30 days (CEO and Director).
Most recent buy Jul 24
Greenland Mines Ltd
$301K
2 insiders bought in the last 30 days (CFO and Director).
Most recent buy Jul 23
MacKenzie Realty Capital, Inc.
$263K
3 insiders bought in the last 30 days (General Counsel/Secretary, Treasurer and CEO/President).
Most recent buy Aug 4
Byrna Technologies Inc.
$253K
3 insiders bought in the last 30 days (CEO and 2 Directors).
Most recent buy Jul 23
Boundless Bio, Inc.
$156K
2 insiders bought in the last 30 days (2 10% owners).
Most recent buy Jul 16
Equity Bancshares Inc.
$151K
2 insiders bought in the last 30 days (2 Directors).
Most recent buy Aug 3
Largest Recent Insider Buys
The biggest individual open-market purchases in the last 30 days. The story is the role and the size: who inside the company put how much of their own money in.
| Filed | Ticker | Insider | Value |
|---|---|---|---|
| Jul 17 | JEFJefferies Financial Group Inc. | Director SUMITOMO MITSUI FINANCIAL GROUP, INC. | $318.7M |
| Aug 4 | APCXAppTech Payments Corp | Director LORD ALBERT L | $115.9M |
| Jul 17 | TYGTortoise Energy Infrastructure Corp | 10% owner PRUDENTIAL FINANCIAL INC | $60.0M |
| Jul 28 | SCTXScribe Therapeutics, Inc. | Director Aghazadeh Behzad | $36.3M |
| Jul 17 | STDNStandard Nuclear, Inc. | 10% owner Decisive Point Group, LLC | $19.1M |
| Jul 30 | MPLTMapLight Therapeutics, Inc. | 10% owner Catalyst4, Inc. | $15.3M |
| Jul 29 | SCTXScribe Therapeutics, Inc. | Director ORBIMED ADVISORS LLC | $15.0M |
| Jul 29 | SCTXScribe Therapeutics, Inc. | Director GORDON CARL L | $15.0M |
| Jul 20 | CBIOCrescent Biopharma, Inc. | Director Fairmount Funds Management LLC | $12.4M |
| Aug 4 | EWAVEast West Ave Acquisition Corp | Insider Space Summit Capital LLC | $10.9M |
| Jul 15 | BOTRoboStrategy, Inc. | President Kang Andrew Kai | $10.0M |
| Jul 28 | GSHDGoosehead Insurance, Inc. | 10% owner Durable Capital Partners LP | $9.1M |
| Aug 5 | BSXBoston Scientific Corp | Chairman, President & CEO Mahoney Michael F | $9.0M |
| Jul 22 | PBLSParabilis Medicines, Inc. | Director RA CAPITAL MANAGEMENT, L.P. | $6.9M |
| Jul 23 | BRTMB&R Technology Merger Corp | 10% owner B&R Technology Sponsor LLC (Cayman) | $6.9M |
How InsiderWatch Uses This
Our pipeline reads every Form 4 as it reaches the SEC and only alerts on open-market purchases of $50,000 or more that were not made under a pre-scheduled 10b5-1 trading plan (trades set up months in advance say nothing about what the insider thinks today). Cluster buying, several insiders at one company buying within days, is one of the strongest signals we track. Alerts that pass those gates go to subscribers within minutes of the filing.
See the latest alerts we sent and the full scored track record, misses included.
Get the Next Insider Buy the Moment It’s Filed.
This page shows the last 30 days. Pro members get each qualifying buy as an alert; Watchlist members get the ones on stocks they follow. Free for 7 days, cancel any time.
Try Free for 7 DaysAll figures on this page come from public SEC Form 4 filings, processed automatically by our own systems and not independently audited. Insider buying does not guarantee a stock will rise, and past performance is not indicative of future results. InsiderWatch is an informational service based on publicly available information only and is not financial, investment, legal, or tax advice.