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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-11-22 00:38 | 2023-11-17 | N/A | N/A | Golub David | Director, Officer, 10% owner - President, CEO | Other | BUY | $15.00 | 300,032 | $4,500,473 | 3,173,524 | +10.4% |
| 2023-11-22 01:05 | 2023-11-17 | N/A | N/A | Golub David | Director, Officer, 10% owner - President and CEO | Other | BUY | $15.00 | 306,032 | $4,590,473 | 6,308,058 | +5.1% |
| 2023-11-22 01:14 | 2023-11-20 | ASA | ASA Gold and Precious Metals Limited | Saba Capital Management, L.P. | 10% owner | Other | BUY | $13.98 | 144,575 | $2,021,159 | 2,594,468 | +5.9% |
| 2023-11-22 01:14 | 2023-11-20 | IRDM | Iridium Communications Inc. | DESCH MATTHEW J | Director, Officer - Chief Executive Officer | Communications Services, NEC | BUY | $37.01 | 28,000 | $1,036,280 | 706,912 | +4.1% |
| 2023-11-22 01:33 | 2023-11-20 | EVM | N/A | Saba Capital Management, L.P. | 10% owner | Other | BUY | $8.69 | 121,905 | $1,059,391 | 2,936,450 | +4.3% |
| 2023-11-22 01:13 | 2023-11-17 | PI | IMPINJ INC | Sylebra Capital Ltd | 10% owner | Electronic Components, NEC | BUY | $81.01 | 41,252 | $3,341,825 | 4,159,839 | +1.0% |
| 2023-11-22 02:15 | 2023-11-21 | MDGL | MADRIGAL PHARMACEUTICALS, INC. | BAKER BROS. ADVISORS LP | Director | Pharmaceutical Preparations | BUY | $188.47 | 64,350 | $12,128,341 | 1,667,104 | +4.0% |
| 2023-11-22 02:14 | 2023-11-17 | MDGL | MADRIGAL PHARMACEUTICALS, INC. | BAKER BROS. ADVISORS LP | Director | Pharmaceutical Preparations | BUY | $178.11 | 67,079 | $11,947,280 | 1,607,668 | +4.4% |
| 2023-11-22 01:56 | 2023-11-20 | NXJ | NUVEEN NEW JERSEY QUALITY MUNICIPAL INCOME FUND | Saba Capital Management, L.P. | 10% owner | Other | BUY | $11.17 | 184,324 | $2,058,475 | 5,051,225 | +3.8% |
| 2023-11-20 22:24 | 2022-12-02 | MONIX | N/A | Meli Ali | Director, Officer, 10% owner - President and CEO | Other | BUY | $10.00 | 1,179,130 | $11,791,300 | 1,189,230 | +11,674.6% |
| 2023-11-21 03:29 | 2023-11-16 | RXO | RXO, Inc. | MFN Partners, LP | 10% owner | Transportation Services | BUY | $19.73 | 139,633 | $2,755,560 | 12,985,002 | +1.1% |
| 2023-11-21 02:27 | 2023-11-16 | GRPN | Groupon, Inc. | Senkypl Dusan | Director, Officer, 10% owner - Interim CEO | Services-Advertising Agencies | BUY | $9.49 | 323,344 | $3,069,731 | 7,040,310 | +4.8% |
| 2023-11-21 03:53 | 2023-11-17 | SCU | N/A | Rithm Capital Corp. | 10% owner | Other | BUY | $12.70 | 29,664,827 | $376,743,303 | 1,000 | +100.0% |
| 2023-11-20 22:39 | 2023-11-17 | WTM | WHITE MOUNTAINS INSURANCE GROUP LTD | Hicks Weston M | Director | Fire, Marine & Casualty Insurance | BUY | $1,480.56 | 1,000 | $1,480,557 | 2,306 | +76.6% |
| 2023-11-21 04:40 | 2023-11-15 | PI | IMPINJ INC | Sylebra Capital Ltd | 10% owner | Electronic Components, NEC | BUY | $79.97 | 52,518 | $4,199,864 | 4,083,077 | +1.3% |
| 2023-11-21 01:23 | 2023-11-16 | PI | IMPINJ INC | Sylebra Capital Ltd | 10% owner | Electronic Components, NEC | BUY | $79.61 | 35,510 | $2,826,951 | 4,118,587 | +0.9% |
| 2023-11-21 00:46 | 2023-11-16 | MRCY | MERCURY SYSTEMS INC | JANA Partners Management, LP | Director, Other | Electronic Components & Accessories | BUY | $33.42 | 259,922 | $8,685,684 | 4,971,308 | +5.5% |
| 2023-11-18 01:18 | 2023-11-15 | NQP | NUVEEN PENNSYLVANIA QUALITY MUNICIPAL INCOME FUND | Saba Capital Management, L.P. | 10% owner | Other | BUY | $10.66 | 98,531 | $1,050,370 | 4,175,504 | +2.4% |
| 2023-11-18 01:07 | 2023-11-15 | ECAT | BlackRock ESG Capital Allocation Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $15.35 | 394,553 | $6,055,836 | 19,420,083 | +2.1% |
| 2023-11-18 01:01 | 2023-11-15 | BMEZ | BlackRock Health Sciences Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $13.62 | 315,918 | $4,301,287 | 13,322,293 | +2.4% |
| 2023-11-18 00:58 | 2023-11-15 | BIGZ | BlackRock Technology & Private Equity Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $7.10 | 971,682 | $6,899,428 | 35,787,638 | +2.8% |
| 2023-11-18 00:55 | 2023-11-15 | BCAT | BlackRock Capital Allocation Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $14.75 | 267,356 | $3,943,956 | 11,657,121 | +2.3% |
| 2023-11-18 00:52 | 2023-11-15 | ASA | ASA Gold and Precious Metals Limited | Saba Capital Management, L.P. | 10% owner | Other | BUY | $13.59 | 135,281 | $1,838,591 | 2,449,893 | +5.8% |
| 2023-11-18 01:41 | 2023-11-15 | KRON | N/A | BISCHOFBERGER NORBERT W | Director, Officer - President & CEO | Other | BUY | $0.85 | 1,731,056 | $1,470,359 | 2,540,665 | +213.8% |
| 2023-11-18 03:39 | 2023-11-16 | UHALUHALB | U-Haul Holding Co /NV/ | SHOEN MARK V | 10% owner | Services-Auto Rental & Leasing (No Drivers) | BUY | $52.43 | 132,500 | $6,946,975 | 192,863 | +219.5% |
| 2023-11-18 01:19 | 2023-11-17 | NXJ | NUVEEN NEW JERSEY QUALITY MUNICIPAL INCOME FUND | Saba Capital Management, L.P. | 10% owner | Other | BUY | $11.11 | 259,473 | $2,882,745 | 4,866,901 | +5.6% |
| 2023-11-18 00:27 | 2023-11-15 | HHH | Howard Hughes Holdings Inc. | Pershing Square Capital Management, L.P. | Director, 10% owner | Real Estate Investment Trusts | BUY | $74.34 | 201,600 | $14,986,279 | 18,352,174 | +1.1% |
| 2023-11-18 00:54 | 2023-11-15 | RPTX | Repare Therapeutics Inc. | BVF PARTNERS L P/IL | 10% owner | Pharmaceutical Preparations | BUY | $5.09 | 1,227,301 | $6,249,908 | 548,938 | +100.0% |
| 2023-11-17 01:50 | 2023-11-14 | FBIO | Fortress Biotech, Inc. | ROSENWALD LINDSAY A MD | Director, Officer, 10% owner - President, CEO & Chairman | Pharmaceutical Preparations | BUY | $1.70 | 1,567,515 | $2,664,776 | 2,597,440 | +152.2% |
| 2023-11-17 01:02 | 2023-11-14 | GLP | GLOBAL PARTNERS LP | Global GP LLC | Other | Wholesale-Petroleum Bulk Stations & Terminals | BUY | $33.34 | 35,000 | $1,166,799 | 65,206 | +115.9% |
| 2023-11-17 03:39 | 2023-11-14 | CRGX | N/A | Samsara BioCapital GP, LLC | 10% owner | Other | BUY | $15.00 | 666,666 | $9,999,990 | 4,121,689 | +19.3% |
| 2023-11-17 02:19 | 2023-11-14 | HG | Hamilton Insurance Group, Ltd. | Hamilton Investments, LP | 10% owner | Fire, Marine & Casualty Insurance | BUY | $15.00 | 200,000 | $3,000,000 | 200,000 | +100.0% |
| 2023-11-17 01:11 | 2023-11-14 | PI | IMPINJ INC | Sylebra Capital Ltd | 10% owner | Electronic Components, NEC | BUY | $79.44 | 48,311 | $3,837,826 | 4,030,559 | +1.2% |
| 2023-11-16 00:48 | 2023-11-13 | JANX | Janux Therapeutics, Inc. | Reardon Tighe | Officer, 10% owner - Acting Chief Financial Officer | Pharmaceutical Preparations | BUY | $5.87 | 849,854 | $4,988,643 | 849,854 | +100.0% |
| 2023-11-16 03:59 | 2023-11-13 | RXO | RXO, Inc. | MFN Partners, LP | 10% owner | Transportation Services | BUY | $19.37 | 170,000 | $3,293,172 | 12,845,369 | +1.3% |
| 2023-11-16 01:12 | 2023-11-13 | BILL | BILL Holdings, Inc. | Hornik David | Director | Services-Prepackaged Software | BUY | $56.49 | 17,710 | $1,000,438 | 17,710 | +100.0% |
| 2023-11-16 00:46 | 2023-11-13 | JANX | Janux Therapeutics, Inc. | Lichter Jay | Director, 10% owner | Pharmaceutical Preparations | BUY | $5.87 | 849,854 | $4,988,643 | 849,854 | +100.0% |
| 2023-11-15 16:28 | 2023-03-24 | MONIX | N/A | Anholt Investments Ltd. | 10% owner | Other | BUY | $10.15 | 591,133 | $6,000,000 | 843,160 | +234.6% |
| 2023-11-16 05:00 | 2023-11-13 | TALO | TALOS ENERGY INC. | Control Empresarial de Capitales S.A. de C.V. | 10% owner, Other | Crude Petroleum & Natural Gas | BUY | $14.20 | 140,251 | $1,991,186 | 15,089,662 | +0.9% |
| 2023-11-16 00:35 | 2023-11-13 | PI | IMPINJ INC | Sylebra Capital Ltd | 10% owner | Electronic Components, NEC | BUY | $73.16 | 33,682 | $2,464,175 | 3,982,248 | +0.9% |
| 2023-11-15 17:23 | 2023-11-14 | CRL | CHARLES RIVER LABORATORIES INTERNATIONAL, INC. | FOSTER JAMES C | Director, Officer - Chairman, President and CEO | Services-Commercial Physical & Biological Research | BUY | $178.05 | 5,620 | $1,000,641 | 202,643 | +2.9% |
| 2023-11-16 01:13 | 2023-11-14 | MDGL | MADRIGAL PHARMACEUTICALS, INC. | BAKER BROS. ADVISORS LP | Director | Pharmaceutical Preparations | BUY | $158.13 | 49,387 | $7,809,556 | 1,545,775 | +3.3% |
| 2023-11-16 01:12 | 2023-11-13 | MDGL | MADRIGAL PHARMACEUTICALS, INC. | BAKER BROS. ADVISORS LP | Director | Pharmaceutical Preparations | BUY | $146.99 | 107,499 | $15,801,020 | 1,500,227 | +7.7% |
| 2023-11-15 03:08 | 2023-11-14 | CRGX | N/A | Third Rock Ventures V, L.P. | 10% owner | Other | BUY | $15.00 | 1,333,333 | $19,999,995 | 1,807,119 | +281.4% |
| 2023-11-15 01:36 | 2023-11-09 | ALPN | N/A | Decheng Capital Global Healthcare Fund (Master), LP | 10% owner | Other | BUY | $12.50 | 375,000 | $4,687,500 | 1,735,544 | +27.6% |
| 2023-11-15 02:26 | 2023-11-13 | ECAT | BlackRock ESG Capital Allocation Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $15.17 | 404,013 | $6,129,120 | 19,025,530 | +2.2% |
| 2023-11-15 02:24 | 2023-11-13 | BMEZ | BlackRock Health Sciences Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $13.67 | 336,498 | $4,598,851 | 13,006,375 | +2.7% |
| 2023-11-15 02:22 | 2023-11-13 | BIGZ | BlackRock Technology & Private Equity Term Trust | Saba Capital Management, L.P. | 10% owner | Other | BUY | $6.95 | 891,549 | $6,196,622 | 34,815,956 | +2.6% |
| 2023-11-15 01:33 | 2023-11-09 | ALPN | N/A | Cui Xiangmin | Director, 10% owner | Other | BUY | $12.50 | 375,000 | $4,687,500 | 1,735,544 | +27.6% |
| 2023-11-15 03:13 | 2023-11-10 | STAA | STAAR SURGICAL CO | BROADWOOD PARTNERS, L.P. | 10% owner | Ophthalmic Goods | BUY | $32.74 | 34,827 | $1,140,131 | 10,102,844 | +0.3% |
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.