27 institutions reported holding $6.9M of NETWORK-1 TECHNOLOGIES INC (NTIP) in SEC 13F filings for 2026-03-31. Largest institutional holders: CANNELL CAPITAL LLC ($1.6M), Clayton Partners LLC ($1.4M), VANGUARD CAPITAL MANAGEMENT LLC ($722,785), RENAISSANCE TECHNOLOGIES LLC ($664,479), SAYBROOK CAPITAL /NC ($475,262). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CANNELL CAPITAL LLC | $1.6M | 1.1M | Hold |
| 2 | Clayton Partners LLC | $1.4M | 979,138 | Trimmed |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $722,785 | 501,934 | New |
| 4 | RENAISSANCE TECHNOLOGIES LLC | $664,479 | 461,444 | Trimmed |
| 5 | SAYBROOK CAPITAL /NC | $475,262 | 330,043 | Hold |
| 6 | Canton Hathaway, LLC | $404,263 | 280,738 | Added |
| 7 | PNC Financial Services Group, Inc. | $388,800 | 270,000 | Hold |
| 8 | DIMENSIONAL FUND ADVISORS LP | $334,100 | 232,014 | Trimmed |
| 9 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $185,992 | 129,161 | Hold |
| 10 | Empowered Funds, LLC | $140,504 | 97,572 | Hold |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | $139,973 | 97,164 | Trimmed |
| 12 | VANGUARD FIDUCIARY TRUST CO | $114,720 | 79,667 | New |
| 13 | CITADEL ADVISORS LLC | $103,435 | 71,830 | Added |
| 14 | STATE STREET CORP | $66,671 | 46,299 | Hold |
| 15 | NORTHERN TRUST CORP | $57,574 | 39,982 | Hold |
| 16 | Calydon Capital | $46,136 | 32,039 | Trimmed |
| 17 | Savvy Advisors, Inc. | $23,040 | 16,000 | Hold |
| 18 | NATIONAL BANK OF CANADA /FI/ | $8,640 | 6,000 | Added |
| 19 | Vanguard Global Advisers, LLC | $5,472 | 3,800 | New |
| 20 | Tower Research Capital LLC (TRC) | $5,011 | 3,480 | Added |
| 21 | UBS Group AG | $1,555 | 1,080 | Added |
| 22 | Royal Bank of Canada | $1,000 | 854 | Added |
| 23 | MAI Capital Management | $152 | 105 | Added |
| 24 | SBI Securities Co., Ltd. | $6 | 4 | Hold |
| 25 | MORGAN STANLEY | $5 | 3 | Added |
Source: SEC Form 13F filings · as of 2026-03-31