CET insider buying and SEC filings, explained
Central Securities Corp. · CIK 18748
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$76K
Insiders who bought
2
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 6, 2026 | Purchase (code P) | John C Hill (CEO and Director) bought 500 shares at $56.37 ($28K), reported as a purchase (code P). Holdings up 1% to 78,101 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Oct 8, 2026, 11:34 AM ET |
| Jun 26, 2026 | Purchase (code P) | John C Hill (CEO and Director) bought 233 shares directly and indirectly (by child) at $51.87 ($12K), reported as a purchase (code P). Direct holdings up <1% to 77,601 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 30, 2026 |
| Jun 26, 2026 | Purchase (code P) | Leo Price Blackford (Director) bought 204 shares at $52.38 ($11K), reported as a purchase (code P). Holdings up <1% to 48,050 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 30, 2026 |
| Dec 29, 2025 | Purchase (code P) | John C Hill (CEO and Director) bought 500 shares at $50.91 ($25K), reported as a purchase (code P). Holdings up 1% to 77,373 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 6, 2026 |
| Dec 29, 2025 | Purchase (code P) Amended filing | John C Hill (CEO and Director) bought 500 shares at $50.91 ($25K), reported as a purchase (code P). Holdings up 1% to 77,373 shares. Not marked as a 10b5-1 plan trade. This amends an earlier filing that is not in our records. | SEC filing Filed Dec 30, 2025 |
| Nov 7, 2025 | Purchase (code P) | John C Hill (CEO and Director) bought 100 shares at $50.70 ($5K), reported as a purchase (code P). Holdings up <1% to 73,277 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 12, 2025 |
12 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
2 insiders bought in 30 days
$23K in purchases since Jun 26, 2026 · Purchases traded Jun 26, 2026 to Jun 26, 2026 · Closed
| Insider | Value | Traded | Source |
|---|---|---|---|
| Leo Price Blackford (Director) | $11K | Jun 26, 2026 | SEC filing |
| John C Hill (CEO) | $12K | Jun 26, 2026 | SEC filing |
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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