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Insider trades and 13F holdings,
straight from SEC filings

Form 4 and 13F filings, organized into plain tables. Free, no sign-up, in English and Chinese.

Biggest insider purchase of the last 7 days

Warren Buffett bought $348.8M of Lennar in 2 filings

Warren Buffett (Berkshire Hathaway) filed as 10% Owner of Lennar. The 2 filings came in on Sep 21 and Sep 25, 2026.

2 Form 4 filings by Buffett Warren E: LEN Lennar Corp (filed jointly with 1 other reporting owner)
  1. Sep 21, 2026Class A Common Stock$206.7M

    2,668,508 shares at $77.46, holding +12.7%

    Form 4 on SEC
  2. Sep 21, 2026Class B Common Stock$5.70M

    75,021 shares at $75.96, holding +16.6%

    Form 4 on SEC
  3. Sep 25, 2026Class A Common Stock$134.7M

    1,659,025 shares at $81.22, holding +7.0%

    Form 4 on SEC
  4. Sep 25, 2026Class B Common Stock$1.64M

    20,675 shares at $79.56, holding +3.9%

    Form 4 on SEC

Total$348.8M

Values are rounded, so the rows may not add up exactly to the total.

Cluster buys: last 30 days

Companies where 3 or more insiders bought shares on the open market.

View all: Cluster buys: last 30 days
  1. GME

    GameStop Corp.

    4 insiders, latest filing Sep 21, 2026

    $48.5M

  2. PMTS

    CPI Card Group Inc.

    5 insiders, latest filing Sep 14, 2026

    $12.0M

  3. HELP

    Cybin Inc.

    3 insiders, latest filing Sep 21, 2026

    $8.38M

  4. AXIAY

    AXIA Energia S.A.

    3 insiders, latest filing Sep 23, 2026

    $7.31M

  5. SBLK

    Star Bulk Carriers Corp.

    8 insiders, latest filing Sep 17, 2026

    $6.92M

  6. VIP

    Vulcan Infrastructure & Power Inc.

    4 insiders, latest filing Sep 14, 2026

    $5.30M

  7. DKS

    Dick's Sporting Goods, Inc.

    6 insiders, latest filing Sep 24, 2026

    $5.09M

  8. INBX

    Inhibrx Biosciences, Inc.

    3 insiders, latest filing Sep 23, 2026

    $4.50M

  9. ADC

    Agree Realty Corp

    3 insiders, latest filing Sep 23, 2026

    $4.14M

  10. TENX

    Tenax Therapeutics, Inc.

    4 insiders, latest filing Sep 17, 2026

    $3.12M

Largest insider purchases: last 14 days

The biggest open-market purchases by company insiders. Filings in the lead story are not repeated here.

Largest buys, last 30 days
  1. RSG

    Republic Services, Inc.

    Gates William H III and 1 other · 10% Owner · Sep 14, 2026

    $129.3M+0.5%

  2. FTK

    Flotek Industries Inc

    Wilks Matthew · Director · Sep 15, 2026

    $34.3M+836.2%

  3. GRAB

    Grab Holdings Ltd

    Tan Anthony Ping Yeow · Chief Executive Officer · Sep 21, 2026

    $29.9M+2,415.4%

  4. GSAT

    Globalstar, Inc.

    Monroe James III · Director, 10% Owner · Sep 21, 2026

    $29.8M+775.1%

  5. GME

    GameStop Corp.

    Cohen Ryan · President, CEO and Chairman · Sep 21, 2026

    $26.4M+2.9%

  6. ETRA

    Electra Therapeutics, Inc.

    OrbiMed Advisors LLC and 2 others · Director, 10% Owner · Sep 23, 2026

    $20.0M+313.8%

  7. GPI

    Group 1 Automotive Inc

    Conifer Management, L.L.C. · 10% Owner · Sep 21, 2026

    $16.9M+4.5%

  8. USO

    United States Oil Fund, LP

    HRT Financial LP · 10% Owner · Sep 16, 2026

    $16.6MNew position

13F filing progress

Institutions file 13F reports within 45 days after each quarter ends, or on the next business day if that falls on a weekend or holiday.

Latest 13F filings

8,897institutions filed for Q2 2026+0.1% vs. last quarter

Last quarter (Q1 2026)
8,891
Deadline
Aug 14, 2026Passed
Next quarter
Q3 2026, due Nov 16, 2026

Superinvestors' latest 13F filings

Sorted by filing date, newest first. Bars show each stock's share of the portfolio.

All 47 superinvestors
  1. François Rochon

    Q2 2026, 51 positions, filed Aug 26, 2026

  2. Daniel Loeb

    Q2 2026, 42 positions, filed Aug 14, 2026

  3. Paul Singer

    Q2 2026, 17 positions, filed Aug 14, 2026

  4. Zhang Lei

    Q2 2026, 35 positions, filed Aug 14, 2026

  5. Duan Yongping

    Q2 2026, 18 positions, filed Aug 14, 2026

  6. Christopher Bloomstran

    Q2 2026, 50 positions, filed Aug 14, 2026

  7. Bill Ackman

    Q2 2026, 14 positions, filed Aug 14, 2026

  8. David Einhorn

    Q2 2026, 46 positions, filed Aug 14, 2026

Largest insider sales: last 14 days

The biggest open-market sales by company insiders.

Largest sales, last 30 days
  1. FANG

    Diamondback Energy, Inc.

    Greth Lyndal and 1 other · 10% Owner · Sep 17, 2026

    $1.86B−12.3%

  2. INGM

    Ingram Micro Holding Corp

    Platinum Equity, LLC and 9 others · 10% Owner · Sep 14, 2026

    $356.8M−7.4%

  3. NVDA

    NVIDIA Corp

    Stevens Mark A · Director · Sep 22, 2026

    $300.1M−58.5%

  4. AVGO

    Broadcom Inc.

    Samueli Henry · Director · Sep 25, 2026

    $250.0M−1.9%

  5. LFST

    LifeStance Health Group, Inc.

    Coulter James G and 2 others · 10% Owner · Sep 15, 2026

    $226.3M−18.8%

  6. AUR

    Aurora Innovation, Inc.

    Uber Technologies, Inc · 10% Owner · Sep 17, 2026

    $182.2M−15.8%

  7. CHYM

    Chime Financial, Inc.

    DST Global Advisors Ltd and 9 others · 10% Owner · Sep 16, 2026

    $109.3M−90.5%

  8. SNOW

    Snowflake Inc.

    Slootman Frank · Director · Sep 22, 2026

    $100.3M−94.0%

Coverage

Everything comes from first-hand SEC EDGAR filings.

Form 4 filings since July 2021
943,655
insiders
92,614
institutions filed a 13F for Q2 2026
8,897
superinvestors on our curated list
47