X-Ray Apparatus & Tubes & Related Irradiation Apparatus
Standard Industrial Classification: SIC 3844
Industry Insider Sentiment Analysis
The X-Ray Apparatus & Tubes & Related Irradiation Apparatus sector (SIC 3844) acts as a critical barometer for broader economic health. Our real-time monitoring reveals 508 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-10 00:02 | 2026-01-07 | BFLY | Butterfly Network, Inc. | Doherty John N. | Officer | SELL | $3.98 | 60,182 | $239,524 | 1,234,688 |
| 2026-01-09 02:14 | 2026-01-06 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $4.12 | 1,140,180 | $4,695,603 | 0 |
| 2026-01-08 00:06 | 2026-01-05 | BFLY | Butterfly Network, Inc. | Ku Victor | Officer | SELL | $3.82 | 35,968 | $137,398 | 811,962 |
| 2025-12-30 00:05 | 2025-12-23 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $4.01 | 62,365 | $249,909 | 1,140,180 |
| 2025-12-18 01:56 | 2025-12-15 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.16 | 886,294 | $2,796,523 | 1,202,545 |
| 2025-12-18 00:10 | 2025-12-15 | BFLY | Butterfly Network, Inc. | Phanstiel S. Louise | Director | BUY | $3.08 | 185,261 | $571,160 | 185,261 |
| 2025-12-16 02:20 | 2025-12-11 | BFLY | Butterfly Network, Inc. | ROBBINS LARRY | Director, 10% owner | BUY | $3.02 | 21,370 | $64,471 | 14,335,055 |
| 2025-12-13 02:58 | 2025-12-10 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.11 | 605,565 | $1,880,764 | 0 |
| 2025-12-11 04:27 | 2025-12-08 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.24 | 945,397 | $3,064,504 | 111,031 |
| 2025-12-09 04:56 | 2025-12-04 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.08 | 101,796 | $313,063 | 543,601 |
| 2025-12-06 01:40 | 2025-12-03 | BFLY | Butterfly Network, Inc. | ROBBINS LARRY | Director, 10% owner | BUY | $2.99 | 1,558,541 | $4,652,712 | 14,313,685 |
| 2025-12-05 00:49 | 2025-12-02 | BFLY | Butterfly Network, Inc. | Caezza Nicholas | Officer | SELL | $2.83 | 1,686 | $4,770 | 231,035 |
| 2025-12-03 01:58 | 2025-11-28 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.08 | 132,570 | $408,183 | 512,827 |
| 2025-11-27 03:58 | 2025-11-24 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.18 | 2,227,876 | $7,089,993 | 797,970 |
| 2025-11-22 01:35 | 2025-11-19 | BFLY | Butterfly Network, Inc. | ROBBINS LARRY | Director | BUY | $2.42 | 2,800,000 | $6,784,120 | 12,755,144 |
| 2025-11-06 00:04 | 2025-11-03 | BFLY | Butterfly Network, Inc. | ROTHBERG JONATHAN M | Director, 10% owner | SELL | $3.08 | 100,502 | $309,345 | 1,140,007 |
| 2025-11-06 00:04 | 2025-11-04 | BFLY | Butterfly Network, Inc. | Carfora Dawn | Director | SELL | $2.70 | 112,009 | $301,864 | 265,505 |
| 2025-10-22 23:17 | 2025-10-20 | HOLX | HOLOGIC INC | Stamoulis Christiana | Director | OPT+S | $73.07 | 7,402 | $540,864 | 47,336 |
| 2025-09-23 23:10 | 2025-09-22 | HOLX | HOLOGIC INC | MACMILLAN STEPHEN P | Director, Officer | OPT+S | $66.97 | 138,358 | $9,266,112 | 1,234,624 |
| 2025-09-08 23:57 | 2025-09-04 | BFLY | Butterfly Network, Inc. | Cashman Steve | Officer | SELL | $1.50 | 142,590 | $214,313 | 2,181,884 |
| 2025-09-08 23:56 | 2025-09-04 | BFLY | Butterfly Network, Inc. | Carlson Megan | Officer | SELL | $1.50 | 13,803 | $20,746 | 547,444 |
| 2025-09-06 00:41 | 2025-09-05 | NNOX | Nano-X Imaging Ltd. | Daniel Ran | Officer | BUY | $3.65 | 1,000 | $3,650 | 6,950 |
| 2025-09-05 23:40 | 2025-09-03 | BFLY | Butterfly Network, Inc. | Caezza Nicholas | Officer | SELL | $1.52 | 1,724 | $2,622 | 232,721 |
| 2025-08-27 15:56 | 2025-08-25 | BFLY | Butterfly Network, Inc. | Cashman Steve | Officer | BUY | $1.64 | 50,000 | $81,955 | 2,324,474 |
| 2025-08-07 01:09 | 2025-08-04 | BFLY | Butterfly Network, Inc. | Caezza Nicholas | Officer | SELL | $1.45 | 3,118 | $4,521 | 234,445 |
| 2025-05-09 23:39 | 2025-05-07 | HOLX | HOLOGIC INC | Madaus Martin D | Director | BUY | $55.24 | 5,445 | $300,760 | 5,445 |
| 2025-05-07 23:18 | 2025-05-05 | BFLY | Butterfly Network, Inc. | Getz Heather C | Officer | SELL | $2.20 | 65,456 | $144,069 | 2,919,274 |
| 2025-04-30 00:40 | 2025-04-25 | BFLY | Butterfly Network, Inc. | DEVIVO JOSEPH | Director, Officer | SELL | $2.44 | 320,215 | $780,684 | 7,249,789 |
| 2025-04-04 00:24 | 2025-04-01 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $2.17 | 1,805 | $3,908 | 1,600,182 |
| 2025-03-28 23:26 | 2025-03-26 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $2.69 | 3,354 | $9,016 | 1,601,987 |
| 2025-02-20 00:07 | 2025-02-18 | GEHC | GE HealthCare Technologies Inc. | Newcomb George A. | Officer | SELL | $92.54 | 2,000 | $185,080 | 7,462 |
| 2025-01-04 00:15 | 2024-12-31 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $3.30 | 1,680 | $5,536 | 1,449,237 |
| 2024-12-28 00:15 | 2024-12-24 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $3.00 | 3,340 | $10,010 | 1,450,917 |
| 2024-12-27 00:15 | 2024-12-20 | BFLY | Butterfly Network, Inc. | Getz Heather C | Officer | SELL | $3.06 | 30,136 | $92,337 | 2,669,333 |
| 2024-12-27 00:15 | 2024-12-20 | BFLY | Butterfly Network, Inc. | Cashman Steve | Officer | SELL | $3.06 | 164,079 | $502,738 | 1,835,921 |
| 2024-12-10 00:15 | 2024-12-05 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $3.37 | 11,277 | $37,970 | 1,454,257 |
| 2024-12-07 00:28 | 2024-12-04 | HOLX | HOLOGIC INC | Mitchell Essex D | Officer | OPT+S | $76.34 | 24,856 | $1,897,482 | 27,957 |
| 2024-11-07 01:53 | 2024-11-06 | GEHC | GE HealthCare Technologies Inc. | Rott Roland | Officer | OPT+S | $86.48 | 3,577 | $309,339 | 24,298 |
| 2024-11-06 00:06 | 2024-11-05 | GEHC | GE HealthCare Technologies Inc. | Rackliffe Philip | Officer | SELL | $87.63 | 900 | $78,867 | 12,715 |
| 2024-10-03 23:30 | 2024-10-01 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $1.79 | 1,696 | $3,034 | 1,465,534 |
| 2024-09-26 23:15 | 2024-09-24 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $1.74 | 3,296 | $5,735 | 1,467,230 |
| 2024-09-13 23:15 | 2024-09-13 | BFLY | Butterfly Network, Inc. | Phanstiel S. Louise | Director | SELL | $1.96 | 60,049 | $117,792 | 0 |
| 2024-09-09 23:20 | 2024-09-05 | BFLY | Butterfly Network, Inc. | Stoica Andrei G | Officer | SELL | $1.70 | 10,212 | $17,320 | 1,470,526 |
| 2024-09-04 23:34 | 2024-08-30 | BFLY | Butterfly Network, Inc. | ROBBINS LARRY | Director, 10% owner | BUY | $1.07 | 244,774 | $262,251 | 9,955,144 |
| 2024-09-03 23:15 | 2024-08-29 | HOLX | HOLOGIC INC | Oberton Karleen Marie | Officer | OPT+S | $80.56 | 52,679 | $4,243,662 | 84,042 |
| 2024-08-30 23:18 | 2024-08-28 | BFLY | Butterfly Network, Inc. | ROBBINS LARRY | Director | BUY | $1.00 | 1,676,869 | $1,683,409 | 9,710,370 |
| 2024-08-15 23:45 | 2024-08-14 | GEHC | GE HealthCare Technologies Inc. | Stacherski Kenneth R. | Officer | SELL | $83.22 | 19,008 | $1,581,846 | 38,541 |
| 2024-08-08 23:08 | 2024-08-06 | HOLX | HOLOGIC INC | Schnittker Brandon | Officer | SELL | $83.11 | 476 | $39,559 | 3,735 |
| 2024-08-08 01:18 | 2024-08-07 | GEHC | GE HealthCare Technologies Inc. | Westrick Thomas J. | Officer | SELL | $80.78 | 2,750 | $222,145 | 17,509 |
| 2024-08-07 23:34 | 2024-08-07 | BFLY | Butterfly Network, Inc. | DEVIVO JOSEPH | Director, Officer | BUY | $0.95 | 104,000 | $98,519 | 7,009,221 |
Sector-Wide Insider Alpha
Analyzing insider movements across the X-Ray Apparatus & Tubes & Related Irradiation Apparatus sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3844) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in X-Ray Apparatus & Tubes & Related Irradiation Apparatus
Every transaction in the X-Ray Apparatus & Tubes & Related Irradiation Apparatus 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.