Radiotelephone Communications
Standard Industrial Classification: SIC 4812
Industry Insider Sentiment Analysis
The Radiotelephone Communications sector (SIC 4812) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-02-20 00:10 | 2025-02-15 | TMUS | T-Mobile US, Inc. | Bazzano Dara | Officer | SELL | $269.04 | 3,889 | $1,046,273 | 7,794 |
| 2025-02-20 00:14 | 2025-02-14 | TMUS | T-Mobile US, Inc. | CANO NESTOR | Officer | SELL | $269.11 | 15,000 | $4,036,650 | 70,972 |
| 2025-02-05 00:01 | 2025-02-03 | TMUS | T-Mobile US, Inc. | Taylor Teresa | Director | SELL | $235.65 | 8,000 | $1,885,200 | 5,631 |
| 2025-01-04 00:02 | 2024-12-09 | TMUS | T-Mobile US, Inc. | Almeida Andre | Director | BUY | $235.72 | 3,808 | $897,528 | 3,808 |
| 2024-12-18 00:02 | 2024-12-13 | TMUS | T-Mobile US, Inc. | Long Letitia A | Director | SELL | $231.08 | 1,100 | $254,188 | 5,653 |
| 2024-12-03 00:04 | 2024-11-27 | TMUS | T-Mobile US, Inc. | Datar Srikant M. | Director | SELL | $246.82 | 6,000 | $1,480,900 | 11,724 |
| 2024-11-21 00:30 | 2024-11-19 | SPOK | Spok Holdings, Inc | WALLACE MICHAEL W | Officer | SELL | $15.95 | 12,000 | $191,382 | 37,465 |
| 2024-11-19 01:00 | 2024-11-14 | TMUS | T-Mobile US, Inc. | SIEVERT G MICHAEL | Director, Officer | SELL | $239.22 | 40,000 | $9,568,800 | 318,124 |
| 2024-11-16 00:30 | 2024-11-13 | SPOK | Spok Holdings, Inc | Stein Todd J | Director | SELL | $17.09 | 900 | $15,385 | 38,233 |
| 2024-11-15 00:30 | 2024-11-13 | SPOK | Spok Holdings, Inc | KELLY VINCENT D | Director, Officer | SELL | $16.88 | 50,000 | $843,935 | 151,645 |
| 2024-11-14 00:30 | 2024-11-11 | SPOK | Spok Holdings, Inc | Stein Todd J | Director | SELL | $17.06 | 13,388 | $228,419 | 776,034 |
| 2024-11-14 01:31 | 2024-11-11 | TMUS | T-Mobile US, Inc. | SIEVERT G MICHAEL | Director, Officer | SELL | $237.78 | 40,000 | $9,511,000 | 358,124 |
| 2024-11-13 00:38 | 2024-11-07 | TMUS | T-Mobile US, Inc. | CANO NESTOR | Officer | SELL | $230.75 | 11,100 | $2,561,308 | 130,976 |
| 2024-11-07 01:35 | 2024-11-04 | TMUS | T-Mobile US, Inc. | CLAURE RAUL MARCELO | Director | SELL | $224.30 | 110,000 | $24,673,000 | 1,441,204 |
| 2024-10-29 23:59 | 2024-10-25 | TMUS | T-Mobile US, Inc. | Osvaldik Peter | Officer | SELL | $233.55 | 20,000 | $4,671,000 | 61,307 |
| 2024-10-18 23:59 | 2024-10-16 | TMUS | T-Mobile US, Inc. | Nelson Mark Wolfe | Officer | SELL | $216.26 | 42,769 | $9,249,224 | 61,871 |
| 2024-10-03 02:22 | 2024-10-01 | TMUS | T-Mobile US, Inc. | Katz Michael J. | Officer | SELL | $205.30 | 3,000 | $615,900 | 119,687 |
| 2024-09-12 01:16 | 2024-09-09 | TMUS | T-Mobile US, Inc. | CLAURE RAUL MARCELO | Director | SELL | $196.63 | 275,000 | $54,072,700 | 1,551,204 |
| 2024-08-28 01:21 | 2024-08-23 | TMUS | T-Mobile US, Inc. | CLAURE RAUL MARCELO | Director | SELL | $197.89 | 114,588 | $22,676,232 | 1,826,204 |
| 2024-08-23 01:22 | 2024-08-20 | TMUS | T-Mobile US, Inc. | CLAURE RAUL MARCELO | Director | SELL | $196.96 | 9,586 | $1,888,059 | 1,940,792 |
| 2024-08-21 23:18 | 2024-08-19 | TMUS | T-Mobile US, Inc. | CANO NESTOR | Officer | SELL | $197.21 | 8,500 | $1,676,285 | 103,288 |
| 2024-08-21 23:30 | 2024-08-20 | SPOK | Spok Holdings, Inc | WALLACE MICHAEL W | Officer | SELL | $14.80 | 25,000 | $369,950 | 49,465 |
| 2024-08-20 00:19 | 2024-08-19 | SPOK | Spok Holdings, Inc | KELLY VINCENT D | Director, Officer | SELL | $14.83 | 45,000 | $667,215 | 201,645 |
| 2024-08-15 00:04 | 2024-08-12 | TMUS | T-Mobile US, Inc. | SIEVERT G MICHAEL | Director, Officer | SELL | $194.82 | 40,000 | $7,792,600 | 398,124 |
| 2024-08-10 00:06 | 2024-08-08 | TMUS | T-Mobile US, Inc. | King Deeanne | Officer | OPT+S | $190.00 | 15,437 | $2,933,030 | 35,588 |
| 2024-08-07 23:14 | 2024-08-05 | USM | Array Digital Infrastructure, Inc. | Lowell Kevin R | Officer | SELL | $49.34 | 37,597 | $1,855,036 | 0 |
| 2024-08-03 00:03 | 2024-08-01 | TMUS | T-Mobile US, Inc. | Freier Jon | Officer | SELL | $181.87 | 10,000 | $1,818,700 | 162,628 |
| 2024-07-02 23:26 | 2024-07-01 | TMUS | T-Mobile US, Inc. | Katz Michael J. | Officer | SELL | $177.59 | 3,000 | $532,770 | 122,687 |
| 2024-06-29 02:57 | 2024-06-26 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $176.60 | 400,383 | $70,707,638 | 670,278,284 |
| 2024-06-26 01:34 | 2024-06-21 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $177.46 | 400,383 | $71,053,889 | 670,678,667 |
| 2024-06-21 01:52 | 2024-06-20 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $176.69 | 133,461 | $23,581,678 | 671,079,050 |
| 2024-06-19 02:45 | 2024-06-14 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $176.67 | 402,891 | $71,178,189 | 671,212,511 |
| 2024-06-14 04:00 | 2024-06-12 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $173.82 | 270,463 | $47,012,636 | 671,615,402 |
| 2024-06-13 00:04 | 2024-06-10 | TMUS | T-Mobile US, Inc. | CLAURE RAUL MARCELO | Director | SELL | $180.22 | 12,000 | $2,162,640 | 1,950,378 |
| 2024-06-12 03:54 | 2024-06-10 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $179.95 | 455,208 | $81,916,591 | 671,885,865 |
| 2024-06-08 01:13 | 2024-06-05 | TMUS | T-Mobile US, Inc. | CLAURE RAUL MARCELO | Director | SELL | $180.02 | 3,037,622 | $546,821,169 | 1,962,378 |
| 2024-06-08 01:09 | 2024-06-06 | TMUS | T-Mobile US, Inc. | Bazzano Dara | Officer | SELL | $179.78 | 4,300 | $773,054 | 6,202 |
| 2024-06-08 01:07 | 2024-06-05 | TMUS | T-Mobile US, Inc. | Osvaldik Peter | Officer | SELL | $180.98 | 10,000 | $1,809,800 | 81,307 |
| 2024-06-08 02:23 | 2024-06-05 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $180.05 | 682,812 | $122,941,120 | 672,341,073 |
| 2024-06-05 02:14 | 2024-05-31 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $173.93 | 682,812 | $118,758,692 | 673,023,885 |
| 2024-05-31 01:58 | 2024-05-29 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $169.29 | 417,274 | $70,638,730 | 673,706,697 |
| 2024-05-29 00:01 | 2024-05-23 | TMUS | T-Mobile US, Inc. | Freier Jon | Officer | SELL | $164.38 | 20,000 | $3,287,600 | 172,628 |
| 2024-05-29 02:30 | 2024-05-28 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $166.40 | 379,340 | $63,120,810 | 674,123,971 |
| 2024-05-24 04:52 | 2024-05-22 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $165.02 | 379,340 | $62,598,421 | 674,503,311 |
| 2024-05-22 02:06 | 2024-05-17 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $163.92 | 569,010 | $93,269,274 | 674,882,651 |
| 2024-05-17 02:34 | 2024-05-15 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $163.08 | 379,340 | $61,861,591 | 675,451,661 |
| 2024-05-16 00:04 | 2024-05-13 | TMUS | T-Mobile US, Inc. | WESTBROOK KELVIN R | Director | SELL | $163.49 | 10,879 | $1,778,608 | 17,127 |
| 2024-05-16 00:08 | 2024-05-13 | TMUS | T-Mobile US, Inc. | SIEVERT G MICHAEL | Director, Officer | SELL | $163.02 | 40,000 | $6,520,800 | 438,124 |
| 2024-05-15 01:40 | 2024-05-10 | TMUS | T-Mobile US, Inc. | DEUTSCHE TELEKOM AG | Director, 10% owner | SELL | $163.39 | 569,010 | $92,971,568 | 675,831,001 |
| 2024-05-13 23:00 | 2024-05-10 | SPOK | Spok Holdings, Inc | Byrne Barbara Peterson | Director | SELL | $15.18 | 5,955 | $90,397 | 30,473 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Radiotelephone Communications sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (4812) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Radiotelephone Communications
Every transaction in the Radiotelephone Communications 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.