Biggest insider buys of the last 90 days
Only code P — money an insider chose to spend at the market price. Grants, option exercises and tax withholding are compensation mechanics and are excluded, because they are the reason most “insider selling” feeds are noise. Updated through the last filing day.
| ticker | insider | date | shares | price paid | value | price now | 1m |
|---|---|---|---|---|---|---|---|
| PBLS Parabilis Medicines, Inc. | RA Capital Healthcare Fund LP Director | 2026-06-11 | 19.7M | 20.00 | 394.6M | 39.36 | +20.0% |
| JEF Jefferies Financial Group Inc. | SUMITOMO MITSUI FINANCIAL GROUP, INC. Director | 2026-07-15 | 5.9M | 54.86 | 324.0M | 52.33 | -5.8% |
| JEF Jefferies Financial Group Inc. | SUMITOMO MITSUI FINANCIAL GROUP, INC. Director | 2026-07-15 | 5.9M | 53.96 | 318.7M | 52.33 | -5.8% |
| KARD Kardigan, Inc. | HRTG CIF 2024, L.P. 10% owner | 2026-06-22 | 3.1M | 16.00 | 50.0M | 21.02 | -3.0% |
| SMMT Summit Therapeutics Inc. | DUGGAN ROBERT W Co-Chief Executive Officer | 2026-06-12 | 3.8M | 13.12 | 50.0M | 13.16 | -12.1% |
| SMMT Summit Therapeutics Inc. | Zanganeh Mahkam Co-Chief Executive Officer | 2026-06-12 | 3.8M | 13.12 | 50.0M | 13.16 | -12.1% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-11 | 211.8K | 216.40 | 45.8M | 220.67 | +1.5% |
| RSG REPUBLIC SERVICES, INC. | CASCADE INVESTMENT, L.L.C. 10% owner | 2026-08-18 | 166.9K | 217.87 | 36.4M | 220.67 | +1.5% |
| RSG REPUBLIC SERVICES, INC. | CASCADE INVESTMENT, L.L.C. 10% owner | 2026-08-10 | 166.1K | 215.07 | 35.7M | 220.67 | +1.5% |
| BRVE Braveheart Bio, Inc. | Forbion Growth III Management B.V. 10% owner | 2026-08-07 | 1.9M | 18.00 | 34.6M | 30.00 | — |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-13 | 157.1K | 215.70 | 33.9M | 220.67 | +1.5% |
| BRVE Braveheart Bio, Inc. | Forbion Growth Opportunities Fund III Cooperatief U.A. 10% owner | 2026-08-07 | 1.7M | 18.00 | 30.2M | 30.00 | — |
| BRVE Braveheart Bio, Inc. | OrbiMed Genesis GP LLC Director | 2026-08-07 | 1.7M | 18.00 | 30.0M | 30.00 | — |
| BRVE Braveheart Bio, Inc. | Chimovits Erez Director | 2026-08-07 | 1.7M | 18.00 | 30.0M | 30.00 | — |
| LFTO Liftoff Mobile, Inc. | GAP COINVESTMENTS III, LLC Director | 2026-06-05 | 1.3M | 23.00 | 30.0M | 18.97 | -14.8% |
| LFTO Liftoff Mobile, Inc. | GENERAL ATLANTIC GENPAR, L.P. Director | 2026-06-05 | 1.3M | 23.00 | 30.0M | 18.97 | -14.8% |
| DPC DPC Holdings Ltd | Charles Dirkson R Director | 2026-06-26 | 903.4K | 33.00 | 29.8M | 45.45 | -7.1% |
| PBLS Parabilis Medicines, Inc. | RA Capital Nexus Fund III, L.P. Director | 2026-06-11 | 1.5M | 20.00 | 29.2M | 39.36 | +20.0% |
| KNOP KNOT Offshore Partners LP | Seglem Trygve Director | 2026-06-15 | 1.2M | 20.00 | 25.0M | 10.68 | +2.4% |
| CGON CG Oncology, Inc. | Liu Brian Guan-Chyun Director | 2026-06-25 | 371.1K | 66.87 | 24.8M | 79.81 | +12.2% |
| RSG REPUBLIC SERVICES, INC. | CASCADE INVESTMENT, L.L.C. 10% owner | 2026-08-17 | 108.5K | 214.62 | 23.3M | 220.67 | +1.5% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-14 | 99.7K | 215.96 | 21.5M | 220.67 | +1.5% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-17 | 98.2K | 215.25 | 21.1M | 220.67 | +1.5% |
| HOOD Robinhood Markets, Inc. | Malka Meyer Director | 2026-06-05 | 250.0K | 80.74 | 20.2M | 108.13 | +6.4% |
| HOOD Robinhood Markets, Inc. | Malka Meyer Director | 2026-05-28 | 249.0K | 80.39 | 20.0M | 108.13 | +6.4% |
| KARD Kardigan, Inc. | ARCH Venture Partners XIII, LLC Director | 2026-06-22 | 1.2M | 16.00 | 20.0M | 21.02 | -3.0% |
| KARD Kardigan, Inc. | BERNS PAUL L Director | 2026-06-22 | 1.2M | 16.00 | 20.0M | 21.02 | -3.0% |
| LIME Neutron Holdings, Inc. | Uber Technologies, Inc 10% owner | 2026-07-02 | 800.0K | 25.00 | 20.0M | 41.06 | +52.9% |
| BRVE Braveheart Bio, Inc. | Andreessen Marc L 10% owner | 2026-08-07 | 1.1M | 18.00 | 19.8M | 30.00 | — |
| IFF INTERNATIONAL FLAVORS & FRAGRANCES INC | FRIBOURG PAUL J Director | 2026-06-01 | 260.0K | 74.28 | 19.3M | 84.28 | +14.2% |
| RSG REPUBLIC SERVICES, INC. | CASCADE INVESTMENT, L.L.C. 10% owner | 2026-08-10 | 88.1K | 214.43 | 18.9M | 220.67 | +1.5% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-19 | 68.6K | 223.45 | 15.3M | 220.67 | +1.5% |
| ZNTL Zentalis Pharmaceuticals, Inc. | WALTERS SUSAN BERKLEY 10% owner | 2026-08-14 | 4.3M | 3.50 | 15.2M | 3.83 | -14.0% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-12 | 69.9K | 216.40 | 15.1M | 220.67 | +1.5% |
| HOOD Robinhood Markets, Inc. | Malka Meyer Director | 2026-06-03 | 181.0K | 83.45 | 15.1M | 108.13 | +6.4% |
| QNT Quantinuum Inc. | Barron Hal Director | 2026-06-05 | 250.0K | 60.00 | 15.0M | 56.60 | +0.2% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-12 | 69.0K | 215.67 | 14.9M | 220.67 | +1.5% |
| DPC DPC Holdings Ltd | Quinn Michael (Mike) Joseph CEO & Executive Director | 2026-06-26 | 435.1K | 33.00 | 14.4M | 45.45 | -7.1% |
| ET Energy Transfer LP | WARREN KELCY L Director | 2026-08-19 | 648.0K | 21.26 | 13.8M | 21.19 | +3.8% |
| FBIN Fortune Brands Innovations, Inc. | GARDEN EDWARD P Director | 2026-06-10 | 320.1K | 40.60 | 13.0M | 44.53 | -10.6% |
| RSG REPUBLIC SERVICES, INC. | GATES WILLIAM H III 10% owner | 2026-08-19 | 57.5K | 222.66 | 12.8M | 220.67 | +1.5% |
| NCLH Norwegian Cruise Line Holdings Ltd. | PAGLIUCA STEPHEN G Director | 2026-06-01 | 695.0K | 18.16 | 12.6M | 17.24 | -7.9% |
| CBIO CRESCENT BIOPHARMA, INC. | Fairmount Funds Management LLC Director | 2026-07-16 | 853.5K | 14.50 | 12.4M | 17.15 | +0.7% |
| NCLH Norwegian Cruise Line Holdings Ltd. | PAGLIUCA STEPHEN G Director | 2026-06-02 | 685.0K | 18.06 | 12.4M | 17.24 | -7.9% |
| RSG REPUBLIC SERVICES, INC. | CASCADE INVESTMENT, L.L.C. 10% owner | 2026-08-14 | 49.5K | 215.27 | 10.7M | 220.67 | +1.5% |
| TUSK MAMMOTH ENERGY SERVICES, INC. | Wexford GP LLC Chief Business Officer | 2026-06-17 | 4.0M | 2.60 | 10.5M | 3.06 | +8.9% |
| QTTB Q32 Bio Inc. | OrbiMed Genesis GP LLC Director | 2026-05-28 | 1.2M | 8.00 | 10.0M | 15.97 | +3.8% |
| QTTB Q32 Bio Inc. | Xu Diyong Director | 2026-05-28 | 1.2M | 8.00 | 10.0M | 15.97 | +3.8% |
| NFRX 2023 ETF Series Trust | Harrison Street Real Assets Fund LLC 10% owner | 2026-08-04 | 372.9K | 26.82 | 10.0M | 26.49 | -3.1% |
| ATTO Attovia Therapeutics, Inc. | Frazier Life Sciences XI, L.P. 10% owner | 2026-08-06 | 588.2K | 17.00 | 10.0M | 20.80 | +4059.2% |
⚠ Joint filings are collapsed to one row: a Form 4 signed by a fund and its six vehicles describes one purchase, not six. A few filings report figures that cannot be trades — one in our archive states 400 billion shares at 400 billion dollars each. We checked those against the raw XML: that is what the filer submitted, not something our reader broke. We cannot correct them without inventing a number the filing does not contain, so we drop them from this ranking and leave them on the company page, where you can open the filing and see for yourself. How to read a Form 4 →
Questions
Why only purchases?
There are many innocent reasons to sell — a house, a divorce, a tax bill, a pre-scheduled 10b5-1 plan — and essentially one reason to buy at the market price. The asymmetry is old and well documented.
How fast does this update?
Form 4 has a two-business-day filing deadline, so a purchase generally appears within days of the trade. This page is rebuilt every 30 minutes.
Is a big buy a signal to buy?
No. Insider activity is a conditioning variable: it changes how you read everything else on the page. A cluster of purchases by several officers is a different data point from one purchase by one, and size relative to that person’s existing holding matters more than the dollar amount.
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