Insider trading, September 2026

Name: Insider buys and sales filed on Form 4s, September 2026
Creator: Andrew Gomes
Published: 2026-10-01

Buys and sales filed on Form 4s

Bought$1.9B1,252 buys Sold$7.1B2,855 sales Ratio0.44buys per sale

From SEC Form 4s, the newest filed Sep 30 · Insiders have 2 business days to file a trade

Month by month

0.44 buys per sale, against 0.28 over the 10 months before.

Insider buys and sales by month, to September 2026
Month	Bought	Sold	Ratio
Sep 2026September 2026	$1.9B1,252 buys	$7.1B2,855 sales	0.44
Aug 2026August 2026	$1.3B1,419 buys	$13B4,298 sales	0.33
Jul 2026July 2026	$1.7B617 buys	$3.1B1,430 sales	0.43
Jun 2026June 2026	$1.1B895 buys	$17B4,125 sales	0.22
May 2026May 2026	$1.5B964 buys	$14B3,353 sales	0.29
Apr 2026April 2026	$351M311 buys	$6.3B1,411 sales	0.22
Mar 2026March 2026	$1.2B955 buys	$18B3,233 sales	0.30
Feb 2026February 2026	$659M552 buys	$9.9B3,180 sales	0.17
Jan 2026January 2026	$889M261 buys	$3.6B1,153 sales	0.23
Dec 2025December 2025	$1.1B527 buys	$7.6B2,075 sales	0.25
Nov 2025November 2025	$713M979 buys	$16B2,839 sales	0.34

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By role

457 insiders bought at 336 companies; 1,110 insiders sold at 667 companies. Each person counted once a role.

Insider buys and sales by role
Role	Bought	Sold	Ratio
CEOs	$144M106 buyers	$435M112 sellers	0.76
CFOs	$3.6M36 buyers	$110M96 sellers	0.39
Directors	$95.6M209 buyers	$1.7B306 sellers	0.70
10% owners	$1.7B45 buyers	$4.2B61 sellers	0.45
Other officers	$9.1M44 buyers	$479M452 sellers	0.09
Other filers	$12.4M18 buyers	$193M83 sellers	0.33

The 10 largest buys

Stock	Insider	ScoreQuality Score	Trade	Traded
LENLennarBerkshire Hathaway Inc, 10% ownerBuy$93.1M	Berkshire Hathaway Inc10% owner	3	Buy$93.1M	Sep 18filed Sep 21
RSGRepublic ServicesCascade Investment, L.l.c., 10% ownerBuy$59.8M	Cascade Investment, L.l.c.10% owner	9	Buy$59.8M	Sep 4filed Sep 8
RSGRepublic ServicesCascade Investment, L.l.c., 10% ownerBuy$57M	Cascade Investment, L.l.c.10% owner	9	Buy$57M	Sep 3filed Sep 8
RSGRepublic ServicesCascade Investment, L.l.c., 10% ownerBuy$55.4M	Cascade Investment, L.l.c.10% owner	9	Buy$55.4M	Sep 8filed Sep 10
LENLennarBerkshire Hathaway Inc, 10% ownerBuy$52.1M	Berkshire Hathaway Inc10% owner	3	Buy$52.1M	Sep 30
RSGRepublic ServicesCascade Investment, L.l.c., 10% ownerBuy$47.2M	Cascade Investment, L.l.c.10% owner	9	Buy$47.2M	Sep 9filed Sep 10
LENLennarBerkshire Hathaway Inc, 10% ownerBuy$43.5M	Berkshire Hathaway Inc10% owner	3	Buy$43.5M	Sep 23filed Sep 25
RSGRepublic ServicesCascade Investment, L.l.c., 10% ownerBuy$39.4M	Cascade Investment, L.l.c.10% owner	9	Buy$39.4M	Sep 11filed Sep 14
LENLennarBerkshire Hathaway Inc, 10% ownerBuy$37.7M	Berkshire Hathaway Inc10% owner	3	Buy$37.7M	Sep 21
RSGRepublic ServicesCascade Investment, L.l.c., 10% ownerBuy$34.5M	Cascade Investment, L.l.c.10% owner	9	Buy$34.5M	Aug 31filed Sep 1

Tested. Our top-⁠scored stocks returned 2.2x the average stock over the next month. How we tested it

The 10 largest sales

Stock	Insider	ScoreQuality Score	Trade	Traded
FANGDiamondback EnergySGF Fang Holdings, LP, 10% ownerSell$1.9B	SGF Fang Holdings, LP10% owner	5	Sell$1.9B	Sep 16filed Sep 17
INGMIngram MicroPlatinum Equity, Llc, 10% ownerSell$357M	Platinum Equity, Llc10% owner	5	Sell$357M	Sep 10filed Sep 14
NVDANvidiaMark Stevens, DirectorSell$298M	Mark StevensDirector	21	Sell$298M	Sep 18filed Sep 22
LFSTLifeStance HealthTpg Gp A, Llc, 10% ownerSell$226M	Tpg Gp A, Llc10% owner		Sell$226M	Sep 11filed Sep 15
AURAurora InnovationUber Technologies, INC, 10% ownerSell$182M	Uber Technologies, INC10% owner		Sell$182M	Sep 15filed Sep 17
TPCTutor PeriniRonald Tutor, DirectorSell$128M	Ronald TutorDirector		Sell$128M	Aug 31filed Sep 2
HGTYHagertyHagerty Holding Corp., 10% ownerSell$106M	Hagerty Holding Corp.10% owner		Sell$106M	Sep 9filed Sep 11
NVDANvidiaMark Stevens, DirectorSell$98.5M	Mark StevensDirector	21	Sell$98.5M	Aug 31filed Sep 2
INNVInnovAgeIgnite Aggregator Lp, 10% ownerSell$92.5M	Ignite Aggregator Lp10% owner		Sell$92.5M	Sep 24filed Sep 28
STXSeagate TechnologyWilliam Mosley, CEOSell$75.6M	William MosleyCEO		Sell$75.6M	Sep 15filed Sep 16

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How these figures are made

As of Oct 26, 2026: insiders filed 1,252 buys ($1.9B) and 2,855 sales ($7.1B) in September 2026, 0.44 buys per sale. Scores as of Sep 30's close.

Shares bought or sold on the market. The buys and sales officers, directors, and 10% owners filed on Form 4s, never grants, option exercises, gifts, or shares held back for taxes.
Plan sales left out. Sales a Form 4 marks as made under a 10b5-1 trading plan set up in advance are not counted, as the Insiders list leaves them out. Buys so marked are counted, as the list counts them, and tagged Plan.
By the filing date. A trade counts in the month its Form 4 was filed, the day the public could read it.
One trade, once. A trade reported by more than one owner of the same shares (a fund and its general partner) counts once. A move between two filers on one day at one price, and a price in another currency or share unit, are left out.
Dollars as filed. Shares times the price on the filing. The buy/sell ratio counts trades, not dollars. The record reaches back to trades made on Oct 7, 2025.

Use these statistics

By Andrew Gomes, Breakaway's founder, from the SEC's Form 4 filings. Published Oct 1, 2026. The month has ended; its counts are final. The Quality Scores are today's.

Download the trades (CSV)Download the chart (PNG)Free to reuse with a link to this page.

How to cite

Breakaway, Insider Trading Statistics, September 2026, Oct 1, 2026, getbreakaway.com/insiders/statistics/2026-09

Journalists: email [email protected] for the data behind this page.