Large Insider Purchases
Institutional-Scale SEC Form 4 Buy Signals
The Signal of $1M+ Conviction
When a corporate executive invests more than $1,000,000 of their own capital into company shares, it represents the highest level of conviction. These seven-figure purchases reflect management's belief in the company's future value.
| Filing Date | Trade Date | Ticker | Company Name | Reporting Person | Relationship | Industry | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-11-09 05:12 | 2021-11-04 | CMPX | Compass Therapeutics, Inc. | GORDON CARL L | Director, 10% owner | Biological Products, (No Diagnostic Substances) | BUY | $3.50 | 5,357,143 | $18,750,001 | 3,571,428 | +100.0% |
| 2021-11-08 14:17 | 2021-11-05 | N/A | N/A | KKR Phorm Investors L.P. | 10% owner | Other | BUY | $5.00 | 1,000,000 | $5,000,000 | 22,175,980 | +4.7% |
| 2021-11-08 18:46 | 2021-11-04 | TCBI | TEXAS CAPITAL BANCSHARES INC/TX | STALLINGS ROBERT W | Director | State Commercial Banks | BUY | $61.66 | 17,098 | $1,054,316 | 65,652 | +35.2% |
| 2021-11-09 05:06 | 2021-11-04 | CMPX | Compass Therapeutics, Inc. | ORBIMED ADVISORS LLC | Director, 10% owner | Biological Products, (No Diagnostic Substances) | BUY | $3.50 | 5,357,143 | $18,750,001 | 3,571,428 | +100.0% |
| 2021-11-05 21:42 | 2021-11-01 | N-A | N/A | Berg Andrew J | 10% owner, Other | Other | BUY | $111.99 | 13,394 | $1,500,000 | 34,528 | +63.4% |
| 2021-11-05 15:49 | 2021-11-02 | TRDA | Entrada Therapeutics, Inc. | PARMAR KUSH | Director, 10% owner | Pharmaceutical Preparations | BUY | $20.00 | 250,000 | $5,000,000 | 1,132,357 | +28.3% |
| 2021-11-06 03:58 | 2021-11-03 | LDI | loanDepot, Inc. | Hsieh Anthony Li | Director, Officer - Chief Executive Officer | Finance Services | BUY | $6.74 | 1,295,021 | $8,727,017 | 1,295,021 | +100.0% |
| 2021-11-05 15:08 | 2021-11-01 | UBI | N/A | Coleman Craig E. | Director, 10% owner | Other | BUY | $0.74 | 1,378,757 | $1,015,592 | 28,624,984 | +5.1% |
| 2021-11-05 20:47 | 2021-11-03 | LIAN | LianBio | PERCEPTIVE ADVISORS LLC | Director, 10% owner | Pharmaceutical Preparations | BUY | $15.98 | 2,270,000 | $36,270,287 | 27,858,895 | +8.9% |
| 2021-11-05 23:46 | 2021-11-03 | CSU | SONIDA SENIOR LIVING, INC. | Ortelius Advisors, L.P. | 10% owner | Services-Nursing & Personal Care Facilities | BUY | $30.00 | 305,055 | $9,151,650 | 582,478 | +110.0% |
| 2021-11-05 02:20 | 2021-11-03 | OPBK | OP Bancorp | KIM OCK HEE | Director | State Commercial Banks | BUY | $12.64 | 80,000 | $1,010,888 | 509,700 | +18.6% |
| 2021-11-05 00:38 | 2021-11-02 | TRDA | Entrada Therapeutics, Inc. | MPM BIOVENTURES 2018, L.P. | 10% owner | Pharmaceutical Preparations | BUY | $20.00 | 100,000 | $2,000,000 | 4,425,784 | +2.3% |
| 2021-11-05 03:26 | 2021-11-04 | BRDS | N/A | Mutrie James E. | Director | Other | BUY | $10.00 | 430,000 | $4,300,000 | 530,000 | +430.0% |
| 2021-11-05 03:27 | 2021-11-04 | BRDS | N/A | McNeill Scott K. | Director, Officer, 10% owner - Co-CEO | Other | BUY | $10.00 | 430,000 | $4,300,000 | 530,000 | +430.0% |
| 2021-11-05 00:00 | 2021-11-02 | AURA | Aura Biosciences, Inc. | Medicxi Ventures Management (Jersey) Ltd | 10% owner | Biological Products, (No Diagnostic Substances) | BUY | $14.00 | 710,000 | $9,940,000 | 70,540 | +100.0% |
| 2021-11-05 00:36 | 2021-11-02 | TRDA | Entrada Therapeutics, Inc. | Foley Todd | Director, 10% owner | Pharmaceutical Preparations | BUY | $20.00 | 100,000 | $2,000,000 | 4,425,784 | +2.3% |
| 2021-11-05 04:00 | 2021-11-02 | TRDA | Entrada Therapeutics, Inc. | Redmile Group, LLC | 10% owner | Pharmaceutical Preparations | BUY | $20.00 | 1,000,000 | $20,000,000 | 1,954,420 | +104.8% |
| 2021-11-04 23:44 | 2021-11-02 | AURA | Aura Biosciences, Inc. | Matrix Capital Management Company, LP | 10% owner | Biological Products, (No Diagnostic Substances) | BUY | $14.00 | 1,785,000 | $24,990,000 | 4,112,870 | +76.7% |
| 2021-11-05 04:52 | 2021-11-02 | CIVI | CIVITAS RESOURCES, INC. | CANADA PENSION PLAN INVESTMENT BOARD | 10% owner | Crude Petroleum & Natural Gas | BUY | $55.42 | 24,166 | $1,339,330 | 21,422,919 | +0.1% |
| 2021-11-05 04:10 | 2021-11-02 | TRDA | Entrada Therapeutics, Inc. | 5AM Ventures V, L.P. | 10% owner | Pharmaceutical Preparations | BUY | $20.00 | 250,000 | $5,000,000 | 1,132,357 | +28.3% |
| 2021-11-05 00:37 | 2021-11-02 | TRDA | Entrada Therapeutics, Inc. | MPM BioVentures 2014, L.P. | 10% owner | Pharmaceutical Preparations | BUY | $20.00 | 100,000 | $2,000,000 | 4,425,784 | +2.3% |
| 2021-11-04 02:47 | 2021-11-01 | CWAN | Clearwater Analytics Holdings, Inc. | Durable Capital Partners LP | 10% owner | Services-Prepackaged Software | BUY | $22.48 | 303,870 | $6,830,451 | 7,341,241 | +4.3% |
| 2021-11-03 23:20 | 2021-10-26 | XLO | Xilio Therapeutics, Inc. | SV7 Impact Medicine Fund LP | 10% owner | Pharmaceutical Preparations | BUY | $16.00 | 625,000 | $10,000,000 | 1,613,632 | +63.2% |
| 2021-11-04 00:35 | 2021-11-01 | ACHR | Archer Aviation Inc. | Lore Marc E. | 10% owner | Aircraft | BUY | $6.50 | 482,342 | $3,136,091 | 26,851,900 | +1.8% |
| 2021-11-03 23:10 | 2021-11-01 | FISV | FISERV INC | OLEARY DENIS | Director | Services-Business Services, NEC | BUY | $99.35 | 15,700 | $1,559,795 | 105,173 | +17.5% |
| 2021-11-04 01:59 | 2021-11-01 | LIAN | LianBio | PERCEPTIVE ADVISORS LLC | Director, 10% owner | Pharmaceutical Preparations | BUY | $14.59 | 220,000 | $3,209,998 | 7,253,885 | +3.1% |
| 2021-11-04 03:45 | 2021-11-01 | LSXMA | Liberty Media Corp | WESCHLER, R. TED | Other | Television Broadcasting Stations | BUY | $50.02 | 5,347,320 | $267,449,418 | 20,207,680 | +36.0% |
| 2021-11-04 03:50 | 2021-11-01 | LSXMA | Liberty Media Corp | BERKSHIRE HATHAWAY INC | 10% owner | Television Broadcasting Stations | BUY | $50.02 | 5,347,320 | $267,449,418 | 20,207,680 | +36.0% |
| 2021-11-02 18:38 | 2021-11-01 | N/A | Nuveen Churchill Direct Lending Corp. | TEACHERS INSURANCE & ANNUITY ASSOCIATION OF AMERICA | 10% owner | Other | BUY | $19.40 | 78,702 | $1,526,819 | 3,389,292 | +2.4% |
| 2021-11-02 21:52 | 2021-08-24 | GRCY | N/A | Feis Lawrence | 10% owner | Other | BUY | $10.15 | 129,326 | $1,312,090 | 672,754 | +23.8% |
| 2021-11-03 00:47 | 2021-10-29 | SPRO | Spero Therapeutics, Inc. | Aquilo Capital Management, LLC | 10% owner | Pharmaceutical Preparations | BUY | $17.53 | 150,000 | $2,630,175 | 4,713,688 | +3.3% |
| 2021-11-02 22:13 | 2021-11-01 | GGZ-B | Gabelli Global Small & Mid Cap Value Trust | GABELLI MARIO J | Director, 10% owner, Other | Other | BUY | $10.00 | 1,263,500 | $12,635,000 | 350,000 | +100.0% |
| 2021-11-02 23:19 | 2021-08-16 | SUI | SUN COMMUNITIES INC | SHIFFMAN GARY A | Director, Officer - Chairman & CEO | Real Estate Investment Trusts | BUY | $194.85 | 362,903 | $70,710,633 | 940,253 | +62.9% |
| 2021-11-01 20:07 | 2021-10-29 | IOAC | Zoomcar Holdings, Inc. | Innovative International Sponsor I LLC | 10% owner | Services-Auto Rental & Leasing (No Drivers) | BUY | $10.00 | 960,000 | $9,600,000 | 960,000 | +100.0% |
| 2021-11-02 03:28 | 2021-10-28 | AUGX | N/A | Krikorian Jason | Director, 10% owner | Other | BUY | $4.00 | 437,500 | $1,750,000 | 4,168,918 | +11.7% |
| 2021-11-01 18:54 | 2021-10-29 | N-A | N/A | Manufacturers Life Reinsurance Ltd | 10% owner | Other | BUY | $16.36 | 61,122 | $1,000,199 | 5,147,629 | +1.2% |
| 2021-11-01 23:30 | 2021-10-28 | TESS | N/A | Lakeview Investment Group & Trading Co LLC | 10% owner | Other | BUY | $5.08 | 300,000 | $1,524,000 | 1,331,591 | +29.1% |
| 2021-11-02 01:35 | 2021-10-28 | WRBY | Warby Parker Inc. | D1 Capital Partners L.P. | 10% owner | Ophthalmic Goods | BUY | $54.11 | 884,841 | $47,880,074 | 12,964,023 | +7.3% |
| 2021-11-02 03:25 | 2021-10-28 | AUGX | N/A | DCM VI, L.P. | Director, 10% owner | Other | BUY | $4.00 | 437,500 | $1,750,000 | 4,168,918 | +11.7% |
| 2021-11-02 04:00 | 2021-10-28 | AUGX | N/A | Redmile Group, LLC | Director, 10% owner | Other | BUY | $4.00 | 1,625,000 | $6,500,000 | 14,380,327 | +12.7% |
| 2021-11-02 03:32 | 2021-10-28 | XRX | Xerox Holdings Corp | ICAHN CARL C | 10% owner | Computer Peripheral Equipment, NEC | BUY | $17.87 | 972,210 | $17,376,990 | 32,114,891 | +3.1% |
| 2021-11-01 14:21 | 2021-10-29 | RNR | RENAISSANCERE HOLDINGS LTD | ODonnell Kevin | Director, Officer - Pres & Chief Executive Officer | Fire, Marine & Casualty Insurance | BUY | $144.14 | 15,000 | $2,162,150 | 243,919 | +6.6% |
| 2021-11-01 20:10 | 2021-10-29 | IOAC | Zoomcar Holdings, Inc. | ANANDA MOHAN P | Director, Officer - CEO | Services-Auto Rental & Leasing (No Drivers) | BUY | $10.00 | 960,000 | $9,600,000 | 960,000 | +100.0% |
| 2021-11-02 03:55 | 2021-04-30 | BTTX | Better Therapeutics Inc. | PERRY DAVID P | Director, Officer, 10% owner - See Remarks | Services-Health Services | BUY | $9.99 | 251,536 | $2,512,442 | 10,730,037 | +2.4% |
| 2021-11-01 21:20 | 2021-10-29 | ARMP | Armata Pharmaceuticals Inc. | Innoviva, Inc. | Director, 10% owner | Biological Products, (No Diagnostic Substances) | BUY | $3.30 | 1,212,122 | $4,000,003 | 7,365,969 | +19.7% |
| 2021-10-30 00:11 | 2021-10-27 | ACHR | Archer Aviation Inc. | Lore Marc E. | 10% owner | Aircraft | BUY | $5.64 | 444,272 | $2,504,228 | 26,369,558 | +1.7% |
| 2021-10-30 02:35 | 2021-10-18 | GTLB | Gitlab Inc. | Technology Crossover Management X, Ltd. | 10% owner, Other | Services-Prepackaged Software | BUY | $77.00 | 325,000 | $25,025,000 | 325,000 | +100.0% |
| 2021-10-30 04:03 | 2021-09-24 | TOST | Toast, Inc. | Technology Crossover Management X, Ltd. | 10% owner, Other | Services-Computer Processing & Data Preparation | BUY | $40.00 | 625,000 | $25,000,000 | 625,000 | +100.0% |
| 2021-10-30 01:03 | 2021-10-27 | NRDY | Nerdy Inc. | LIGHT STREET CAPITAL MANAGEMENT, LLC | 10% owner | Services-Educational Services | BUY | $8.03 | 563,063 | $4,520,326 | 9,100,000 | +6.6% |
| 2021-10-29 22:14 | 2021-10-27 | MEGI | NYLI CBRE Global Infrastructure Megatrends Term Fund | Nolan Richard H Jr | Director | Other | BUY | $20.00 | 50,000 | $1,000,000 | 50,000 | +100.0% |
Institutional Conviction in Form 4
Tracking these institutional-scale purchases allows you to follow the "smart money" when their conviction is highest. When an executive or a 10% beneficial owner commits a seven-figure sum to an open-market transaction, it bypasses the routine noise of stock-based compensation. These trades are often a precursor to major corporate developments or a signal that management views the current market valuation as significantly disconnected from the company’s internal growth trajectory. By monitoring these high-value entries, investors can align their portfolios with the capital of those who possess the most intimate understanding of a business's long-term health and potential.
Filtering the Market Noise
Our platform is designed to eliminate the noise and focus strictly on high-impact accumulation from directors and CEOs betting big on their company’s future. The SEC EDGAR database is frequently flooded with thousands of automated Form 4 filings, many of which involve small, technical, or pre-scheduled trades that offer little predictive value for the average investor. By applying a strict $1,000,000 minimum threshold, we isolate the transactions where insiders are taking substantial personal financial risk. This high-conviction filter serves as a powerful transparency tool, identifying the exact moments when corporate leadership moves away from passive ownership toward aggressive capital deployment.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.