Surety Insurance
Standard Industrial Classification: SIC 6351
Industry Insider Sentiment Analysis
The Surety Insurance sector (SIC 6351) acts as a critical barometer for broader economic health. Our real-time monitoring reveals total transactions. Monitoring "cluster buying" is one of the most reliable leading indicators for future sector performance. By analyzing aggregate data across this specific Standard Industrial Classification, investors can filter out individual company volatility and identify high-conviction trends. When multiple directors and officers within the same industry move capital simultaneously, it often signals an upcoming sector-wide revaluation or a fundamental shift in supply chain dynamics that has yet to be recognized by the broader public market.
| Filing Date | Trade Date | Ticker | Company | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-11-15 00:28 | 2025-11-12 | AMBC | OCTAVE SPECIALTY GROUP INC | Smith R Sharon | Officer | BUY | $10.25 | 20 | $205 | 170,952 |
| 2025-11-14 00:10 | 2025-11-11 | ESNT | Essent Group Ltd. | Dutt Aditya | Director | SELL | $61.49 | 3,250 | $199,843 | 28,722 |
| 2025-11-05 00:15 | 2025-11-03 | MTG | MGIC INVESTMENT CORP | Miosi Salvatore A | Officer | SELL | $27.52 | 30,000 | $825,600 | 159,401 |
| 2025-11-04 19:59 | 2025-11-03 | ORI | OLD REPUBLIC INTERNATIONAL CORP | Risch Therace | Director | BUY | $39.14 | 1,000 | $39,136 | 10,625 |
| 2025-11-04 00:31 | 2025-10-31 | MTG | MGIC INVESTMENT CORP | Maggio Paula C | Officer | SELL | $27.44 | 20,000 | $548,820 | 117,395 |
| 2025-10-30 02:48 | 2025-10-28 | RDN | RADIAN GROUP INC | Thornberry Richard G | Director, Officer | SELL | $33.24 | 20,000 | $664,728 | 898,878 |
| 2025-10-08 23:08 | 2025-10-07 | MTG | MGIC INVESTMENT CORP | Mattke Timothy J. | Director, Officer | SELL | $27.09 | 139,203 | $3,771,677 | 961,791 |
| 2025-10-02 23:44 | 2025-10-01 | MTG | MGIC INVESTMENT CORP | Miosi Salvatore A | Officer | SELL | $28.15 | 30,000 | $844,632 | 189,401 |
| 2025-10-01 23:58 | 2025-10-01 | AMBC | OCTAVE SPECIALTY GROUP INC | LeBlanc Claude | Director, Officer | BUY | $8.54 | 25,000 | $213,500 | 1,021,777 |
| 2025-09-24 23:31 | 2025-09-23 | RDN | RADIAN GROUP INC | Thornberry Richard G | Director, Officer | SELL | $36.28 | 20,000 | $725,604 | 918,878 |
| 2025-09-25 00:28 | 2025-09-23 | AGO | ASSURED GUARANTY LTD | FREDERICO DOMINIC | Director, Officer | SELL | $83.83 | 25,000 | $2,095,750 | 1,287,803 |
| 2025-09-22 23:06 | 2025-09-18 | ESNT | Essent Group Ltd. | Gibbons Mary Lourdes | Officer | SELL | $65.00 | 4,000 | $260,000 | 243,023 |
| 2025-09-22 23:06 | 2025-09-18 | ESNT | Essent Group Ltd. | Bhasin Vijay | Officer | SELL | $65.00 | 11,479 | $746,135 | 196,922 |
| 2025-09-19 23:17 | 2025-09-18 | RDN | RADIAN GROUP INC | Hoffman Edward J | Officer | SELL | $37.00 | 10,000 | $370,000 | 153,708 |
| 2025-09-18 00:04 | 2025-09-15 | ESNT | Essent Group Ltd. | WEINSTOCK DAVID B | Officer | SELL | $63.33 | 2,500 | $158,325 | 24,865 |
| 2025-09-18 01:10 | 2025-09-15 | NMIH | NMI Holdings, Inc. | SCHEID STEVEN | Director | SELL | $39.31 | 19,926 | $783,357 | 78,960 |
| 2025-09-17 04:17 | 2025-09-16 | NMIH | NMI Holdings, Inc. | Realmuto Nicholas Daniel | Officer | SELL | $38.52 | 291 | $11,209 | 7,316 |
| 2025-09-04 18:37 | 2025-09-02 | ORI | OLD REPUBLIC INTERNATIONAL CORP | Risch Therace | Director | BUY | $39.90 | 1,500 | $59,850 | 9,625 |
| 2025-09-03 23:10 | 2025-09-02 | MTG | MGIC INVESTMENT CORP | Miosi Salvatore A | Officer | SELL | $27.66 | 30,000 | $829,890 | 219,401 |
| 2025-08-28 23:04 | 2025-08-27 | MBI | MBIA INC | Shasta Theodore | Director | SELL | $7.90 | 6,382 | $50,418 | 50,146 |
| 2025-08-27 23:48 | 2025-08-26 | RDN | RADIAN GROUP INC | Thornberry Richard G | Director, Officer | SELL | $34.74 | 20,000 | $694,764 | 938,878 |
| 2025-08-25 19:58 | 2025-08-21 | ORI | OLD REPUBLIC INTERNATIONAL CORP | OBERST STEPHEN J | Officer | OPT+S | $39.29 | 4,797 | $188,474 | 54,661 |
| 2025-08-25 23:02 | 2025-08-21 | MBI | MBIA INC | DEWBREY DIANE L | Director | SELL | $7.15 | 4,975 | $35,571 | 105,017 |
| 2025-08-20 23:18 | 2025-08-19 | MBI | MBIA INC | Shasta Theodore | Director | SELL | $6.71 | 8,361 | $56,102 | 56,528 |
| 2025-08-14 23:10 | 2025-08-12 | MBI | MBIA INC | Shasta Theodore | Director | SELL | $6.15 | 20,000 | $123,000 | 64,889 |
| 2025-08-15 04:58 | 2025-08-12 | ESNT | Essent Group Ltd. | Gibbons Mary Lourdes | Officer | SELL | $62.00 | 3,760 | $233,120 | 247,023 |
| 2025-08-15 04:57 | 2025-08-13 | ESNT | Essent Group Ltd. | SPIEGEL WILLIAM | Director | SELL | $62.74 | 6,451 | $404,736 | 26,252 |
| 2025-08-12 23:49 | 2025-08-11 | AGO | ASSURED GUARANTY LTD | Bailenson Robert | Officer | SELL | $81.51 | 40,000 | $3,260,400 | 291,728 |
| 2025-08-12 23:08 | 2025-08-11 | MBI | MBIA INC | VAUGHAN RICHARD C | Director | SELL | $6.07 | 25,086 | $152,272 | 86,874 |
| 2025-08-11 23:07 | 2025-08-11 | AMBC | OCTAVE SPECIALTY GROUP INC | LeBlanc Claude | Director, Officer | BUY | $7.03 | 25,000 | $175,750 | 603,291 |
| 2025-08-08 23:36 | 2025-08-07 | MTG | MGIC INVESTMENT CORP | Mattke Timothy J. | Director, Officer | SELL | $26.54 | 139,203 | $3,693,988 | 1,100,994 |
| 2025-08-05 23:26 | 2025-08-04 | MTG | MGIC INVESTMENT CORP | Maggio Paula C | Officer | SELL | $26.54 | 20,000 | $530,800 | 137,395 |
| 2025-08-04 19:56 | 2025-07-31 | ORI | OLD REPUBLIC INTERNATIONAL CORP | MONROE CAROLYN | Officer | OPT+S | $36.52 | 6,849 | $250,125 | 35,755 |
| 2025-08-04 23:30 | 2025-08-01 | MTG | MGIC INVESTMENT CORP | Miosi Salvatore A | Officer | SELL | $26.22 | 30,000 | $786,600 | 249,401 |
| 2025-07-31 23:37 | 2025-07-29 | RDN | RADIAN GROUP INC | Thornberry Richard G | Director, Officer | SELL | $33.90 | 20,000 | $677,986 | 958,878 |
| 2025-07-04 03:08 | 2025-07-01 | ESNT | Essent Group Ltd. | Gibbons Mary Lourdes | Officer | SELL | $62.00 | 240 | $14,880 | 250,783 |
| 2025-07-02 23:06 | 2025-07-01 | MTG | MGIC INVESTMENT CORP | Miosi Salvatore A | Officer | SELL | $28.15 | 30,000 | $844,560 | 279,401 |
| 2025-06-25 23:57 | 2025-06-24 | RDN | RADIAN GROUP INC | Thornberry Richard G | Director, Officer | SELL | $36.71 | 20,000 | $734,160 | 978,090 |
| 2025-06-25 23:56 | 2025-06-23 | ESNT | Essent Group Ltd. | Gibbons Mary Lourdes | Officer | SELL | $60.00 | 1,999 | $119,940 | 251,023 |
| 2025-06-24 23:52 | 2025-06-23 | RDN | RADIAN GROUP INC | Hoffman Edward J | Officer | SELL | $36.00 | 20,000 | $720,000 | 161,586 |
| 2025-06-19 00:06 | 2025-06-16 | ESNT | Essent Group Ltd. | WEINSTOCK DAVID B | Officer | SELL | $58.79 | 2,500 | $146,975 | 27,365 |
| 2025-06-17 23:39 | 2025-06-16 | RDN | RADIAN GROUP INC | Hoffman Edward J | Officer | SELL | $35.00 | 10,000 | $350,000 | 181,586 |
| 2025-06-13 00:01 | 2025-06-11 | RDN | RADIAN GROUP INC | Hoffman Edward J | Officer | SELL | $34.00 | 10,000 | $340,000 | 191,586 |
| 2025-06-09 23:34 | 2025-06-06 | RDN | RADIAN GROUP INC | Spiegel Noel Joseph | Director | SELL | $33.66 | 5,105 | $171,834 | 20,008 |
| 2025-06-09 23:34 | 2025-06-06 | RDN | RADIAN GROUP INC | Mumford Lisa | Director | SELL | $33.45 | 2,500 | $83,613 | 22,329 |
| 2025-06-09 23:35 | 2025-06-06 | RDN | RADIAN GROUP INC | CULANG HOWARD BERNARD | Director | SELL | $33.37 | 8,773 | $292,755 | 8,050 |
| 2025-06-06 23:34 | 2025-06-06 | RDN | RADIAN GROUP INC | Ray Eric | Officer | SELL | $33.30 | 30,000 | $999,000 | 13,957 |
| 2025-06-06 19:35 | 2025-06-05 | MTG | MGIC INVESTMENT CORP | Miosi Salvatore A | Officer | SELL | $26.04 | 30,000 | $781,110 | 309,401 |
| 2025-06-06 23:34 | 2025-06-04 | RDN | RADIAN GROUP INC | Hoffman Edward J | Officer | SELL | $33.72 | 10,000 | $337,200 | 201,586 |
| 2025-06-07 04:30 | 2025-06-06 | NMIH | NMI Holdings, Inc. | SHUSTER BRADLEY M | Director, Officer | SELL | $39.56 | 21,545 | $852,284 | 409,792 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Surety Insurance sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (6351) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Surety Insurance
Every transaction in the Surety Insurance industry is reported via Form 4 disclosures. By filtering these filings by industry, investors can detect institutional-scale sentiment shifts before they are reflected in broader market indices, following the capital flow of those with intimate industry knowledge.
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.