SEC CIK 1407712
Culhane Mark
Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.
Current Positions
| Company | Shares Owned | As Of |
|---|---|---|
| TDCview stock → | 270,107 | 2021-05-27 |
| GNSSview stock → | 114,547 | 2025-10-01 |
Position History — TDC
Reported shares owned immediately after each Form 4 transaction, over time.
Recent Filings — TDC
| Date | Activity | Shares | Price | Owned After |
|---|---|---|---|---|
| 2021-05-27 | Open-market sale | 3,957 | $48.42 | 270,107 |
| 2021-03-01 | Open-market sale | 9,029 | $40.03 | 277,423 |
| 2021-03-01 | Tax withholding | 17,405 | $42.13 | 274,064 |
| 2021-03-01 | Grant / award | 28,334 | $0.00 | 305,757 |
| 2021-03-01 | Tax withholding | 3,845 | $42.13 | 301,912 |
| 2021-03-01 | Tax withholding | 10,443 | $42.13 | 291,469 |
| 2021-02-26 | Tax withholding | 6,633 | $41.03 | 286,452 |
| 2021-02-25 | Grant / award | 15,662 | $41.03 | 293,085 |
| 2021-02-01 | Tax withholding | 45,647 | $27.82 | 277,423 |
| 2021-02-01 | Grant / award | 93,136 | $0.00 | 323,070 |
| 2020-11-25 | Open-market sale | 7,050 | $21.80 | 16,750 |
| 2020-03-12 | Open-market buy | 1,200 | $18.92 | 229,934 |
| 2020-03-11 | Open-market buy | 550 | $19.80 | 23,800 |
| 2020-03-11 | Open-market buy | 8,400 | $19.78 | 23,250 |
| 2020-03-02 | Tax withholding | 3,796 | $20.87 | 228,734 |
| 2020-03-01 | Grant / award | 63,186 | $0.00 | 127,221 |
| 2020-03-01 | Grant / award | 105,309 | $0.00 | 232,530 |
| 2019-11-11 | Open-market buy | 1,950 | $26.00 | 64,035 |
| 2019-11-11 | Open-market buy | 7,800 | $26.00 | 14,850 |
| 2019-05-07 | Open-market buy | 4,600 | $38.03 | 62,085 |
| 2019-05-06 | Open-market buy | 1,400 | $39.35 | 57,485 |
| 2019-05-06 | Open-market buy | 3,050 | $38.56 | 7,050 |
| 2019-03-01 | Grant / award | 23,261 | $0.00 | 60,085 |
| 2018-11-05 | Open-market buy | 6,900 | $35.11 | 36,824 |
| 2018-11-05 | Open-market buy | 4,000 | $35.09 | 4,000 |
| 2018-11-05 | Open-market buy | 2,900 | $35.14 | 32,824 |
| 2017-12-01 | Open-market buy | 4,500 | $37.66 | 29,924 |
| 2017-11-27 | Grant / award | 25,424 | $0.00 | 25,424 |
| 2017-11-10 | — | — | — | 0 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.