Computer Communications Equipment
Standard Industrial Classification: SIC 3576
Industry Insider Sentiment Analysis
The Computer Communications Equipment sector (SIC 3576) 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-01-23 02:21 | 2026-01-20 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $262.73 | 1,110 | $291,630 | 11,403 |
| 2026-01-15 02:08 | 2026-01-12 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $265.00 | 1,110 | $294,150 | 12,513 |
| 2026-01-12 15:57 | 2025-12-31 | INTZ | INTRUSION INC | Scott Anthony | Officer | BUY | $0.98 | 2,175 | $2,126 | 638,793 |
| 2026-01-12 15:58 | 2025-12-31 | INTZ | INTRUSION INC | PINSON KIMBERLY | Officer | BUY | $0.98 | 2,500 | $2,444 | 61,154 |
| 2026-01-08 02:41 | 2026-01-05 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $263.79 | 1,110 | $292,807 | 13,623 |
| 2026-01-07 03:07 | 2026-01-02 | ANET | Arista Networks, Inc. | Giancarlo Charles H | Director | SELL | $133.79 | 8,000 | $1,070,291 | 17,784 |
| 2026-01-06 00:55 | 2026-01-02 | EXTR | EXTREME NETWORKS INC | MEYERCORD EDWARD | Director, Officer | OPT+S | $16.54 | 50,000 | $827,000 | 1,871,418 |
| 2025-12-31 01:38 | 2025-12-29 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $262.86 | 1,100 | $289,146 | 14,733 |
| 2025-12-24 01:09 | 2025-12-22 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $257.90 | 1,110 | $286,269 | 15,833 |
| 2025-12-20 03:10 | 2025-12-17 | ANET | Arista Networks, Inc. | Duda Kenneth | Director, Officer | OPT+S | $123.16 | 56,000 | $6,896,725 | 532,400 |
| 2025-12-20 00:05 | 2025-12-18 | CSCO | CISCO SYSTEMS, INC. | CAPELLAS MICHAEL D | Director | SELL | $77.22 | 27,000 | $2,084,856 | 146,368 |
| 2025-12-19 02:05 | 2025-12-18 | CSCO | CISCO SYSTEMS, INC. | JOHNSON KRISTINA M | Director | SELL | $77.13 | 13,481 | $1,039,845 | 61,630 |
| 2025-12-18 01:52 | 2025-12-15 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $264.76 | 1,110 | $293,884 | 16,943 |
| 2025-12-13 02:50 | 2025-12-12 | CSCO | CISCO SYSTEMS, INC. | Subaiya Thimaya K. | Officer | SELL | $79.46 | 1,745 | $138,658 | 176,319 |
| 2025-12-13 02:50 | 2025-12-11 | CSCO | CISCO SYSTEMS, INC. | Wong Maria Victoria | Officer | SELL | $80.33 | 428 | $34,381 | 32,176 |
| 2025-12-11 01:26 | 2025-12-08 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $248.66 | 1,110 | $276,013 | 18,053 |
| 2025-12-05 02:35 | 2025-12-02 | INTZ | INTRUSION INC | LEVECCHIO ANTHONY J | Director | SELL | $1.39 | 200 | $277 | 119,931 |
| 2025-12-05 02:34 | 2025-12-03 | FFIV | F5, INC. | HIGGINSON ALAN | Director | SELL | $237.11 | 1,309 | $310,377 | 8,610 |
| 2025-12-04 03:24 | 2025-12-01 | ANET | Arista Networks, Inc. | Giancarlo Charles H | Director | SELL | $128.09 | 8,000 | $1,024,749 | 25,784 |
| 2025-12-04 02:12 | 2025-12-01 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $236.99 | 1,110 | $263,059 | 19,163 |
| 2025-12-04 02:20 | 2025-12-01 | FFIV | F5, INC. | Locoh-Donou Francois | Director, Officer | SELL | $236.99 | 1,300 | $308,087 | 150,323 |
| 2025-12-02 01:09 | 2025-11-28 | EXTR | EXTREME NETWORKS INC | MEYERCORD EDWARD | Director, Officer | OPT+S | $17.46 | 50,000 | $872,930 | 1,871,418 |
| 2025-11-29 01:47 | 2025-11-25 | ANET | Arista Networks, Inc. | Ullal Jayshree | Director, Officer | SELL | $124.55 | 24,042 | $2,994,534 | 9,917 |
| 2025-11-26 05:16 | 2025-11-24 | DGII | DIGI INTERNATIONAL INC | Schneider Terrence G. | Officer | OPT+S | $40.78 | 20,875 | $851,337 | 24,756 |
| 2025-11-26 03:06 | 2025-11-21 | ANET | Arista Networks, Inc. | Battles Kelly Bodnar | Director | SELL | $117.15 | 422 | $49,436 | 8,980 |
| 2025-11-26 05:01 | 2025-11-24 | DGII | DIGI INTERNATIONAL INC | Sampsell David H. | Officer | OPT+S | $40.99 | 13,475 | $552,325 | 31,757,255 |
| 2025-11-26 01:10 | 2025-11-24 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $234.92 | 1,110 | $260,756 | 20,273 |
| 2025-11-25 03:06 | 2025-11-24 | CSCO | CISCO SYSTEMS, INC. | Wong Maria Victoria | Officer | SELL | $76.38 | 9,801 | $748,587 | 33,026 |
| 2025-11-22 00:07 | 2025-11-20 | CSCO | CISCO SYSTEMS, INC. | Tuszik Oliver | Officer | SELL | $79.21 | 13,353 | $1,057,691 | 197,040 |
| 2025-11-21 01:45 | 2025-11-18 | CSCO | CISCO SYSTEMS, INC. | Patterson Mark | Officer | SELL | $77.30 | 68,916 | $5,327,200 | 208,897 |
| 2025-11-21 01:46 | 2025-11-19 | CSCO | CISCO SYSTEMS, INC. | Subaiya Thimaya K. | Officer | SELL | $78.33 | 56,038 | $4,389,266 | 179,780 |
| 2025-11-20 03:29 | 2025-11-17 | ANET | Arista Networks, Inc. | Duda Kenneth | Director, Officer | OPT+S | $128.61 | 56,000 | $7,202,390 | 542,400 |
| 2025-11-20 01:36 | 2025-11-17 | DGII | DIGI INTERNATIONAL INC | Sampsell David H. | Officer | OPT+S | $38.38 | 22,222 | $852,843 | 31,749 |
| 2025-11-20 01:26 | 2025-11-18 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | SELL | $227.44 | 1,110 | $252,458 | 21,383 |
| 2025-11-19 02:39 | 2025-11-14 | CSCO | CISCO SYSTEMS, INC. | Tuszik Oliver | Officer | SELL | $76.56 | 5,440 | $416,508 | 210,393 |
| 2025-11-19 02:35 | 2025-11-14 | CSCO | CISCO SYSTEMS, INC. | Stahlkopf Deborah L | Officer | SELL | $77.85 | 164,604 | $12,815,113 | 196,718 |
| 2025-11-19 02:35 | 2025-11-14 | CSCO | CISCO SYSTEMS, INC. | Patel Jeetendra I | Officer | SELL | $77.86 | 163,896 | $12,760,205 | 281,108 |
| 2025-11-19 02:35 | 2025-11-14 | CSCO | CISCO SYSTEMS, INC. | Robbins Charles | Director, Officer | SELL | $77.97 | 602,432 | $46,971,623 | 704,153 |
| 2025-11-06 03:07 | 2025-11-03 | ANET | Arista Networks, Inc. | Giancarlo Charles H | Director | SELL | $157.12 | 8,000 | $1,256,957 | 33,784 |
| 2025-11-06 02:04 | 2025-11-04 | FFIV | F5, INC. | SCHRAMM LYRA AMBER | Officer | SELL | $246.97 | 1,062 | $262,282 | 0 |
| 2025-11-05 03:28 | 2025-11-03 | FFIV | F5, INC. | WHALEN CHAD MICHAEL | Officer | OPT+S | $249.77 | 9,436 | $2,356,829 | 25,641 |
| 2025-11-05 03:22 | 2025-11-03 | FFIV | F5, INC. | FOUNTAIN THOMAS DEAN | Officer | OPT+S | $249.78 | 8,318 | $2,077,663 | 22,493 |
| 2025-11-05 03:24 | 2025-11-03 | FFIV | F5, INC. | Locoh-Donou Francois | Director, Officer | OPT+S | $252.98 | 1,300 | $328,874 | 151,623 |
| 2025-10-22 02:08 | 2025-10-17 | ANET | Arista Networks, Inc. | Duda Kenneth | Director, Officer | OPT+S | $142.75 | 56,000 | $7,993,815 | 552,400 |
| 2025-10-04 01:33 | 2025-10-01 | ANET | Arista Networks, Inc. | Giancarlo Charles H | Director | SELL | $147.49 | 8,000 | $1,179,890 | 41,784 |
| 2025-10-04 00:14 | 2025-10-01 | FFIV | F5, INC. | Locoh-Donou Francois | Director, Officer | SELL | $320.61 | 1,300 | $416,793 | 107,553 |
| 2025-09-24 02:06 | 2025-09-19 | ANET | Arista Networks, Inc. | Giancarlo Charles H | Director | SELL | $148.42 | 58,000 | $8,608,366 | 49,784 |
| 2025-09-23 01:46 | 2025-09-19 | CSCO | CISCO SYSTEMS, INC. | Tuszik Oliver | Officer | SELL | $67.95 | 17,526 | $1,190,839 | 198,855 |
| 2025-09-20 01:53 | 2025-09-17 | ANET | Arista Networks, Inc. | Duda Kenneth | Director, Officer | OPT+S | $141.80 | 56,000 | $7,940,526 | 562,400 |
| 2025-09-15 23:25 | 2025-09-12 | CSCO | CISCO SYSTEMS, INC. | Subaiya Thimaya K. | Officer | SELL | $66.78 | 1,744 | $116,464 | 158,009 |
Sector-Wide Insider Alpha
Analyzing insider movements across the Computer Communications Equipment sector provides a macro-view of executive conviction. When multiple leaders in different companies within the same SIC code (3576) simultaneously buy shares, it often indicates an industry-wide undervaluation or a positive shift in market cycles.
SEC Filings in Computer Communications Equipment
Every transaction in the Computer Communications Equipment 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.