Reporting owner · CIK 0001229379
Sheriff William M
Visual SEC Form 4 history across 1 companies, 13 transactions and 7 filings.
CHAIRExecutive ChairmanenCore Energy Corp.
Open-market mix
27%buys
Open-market buy performance
90-day forward return on this insider's open-market purchases
For every open-market buy (Form 4 code P, acquisition A) in the selected window, we take the closing price on the transaction date and 90 calendar days later, then compute the percentage change. The figures shown are the simple average and median of those per-buy returns.
- Window follows the rest of the summary (all-history or last 3 months).
- Only buys with a resolved price context are counted.
- Includes both positive and negative outcomes; gains and losses net out at the per-buy level.
Monthly open-market activity
Reported purchase and sale transaction counts
Buys Sells
Net value flow
Buys minus sells
Jan 25
−$85.1K
Feb 25
−$76.8K
Dec 25
−$39.9K
Jan 26
−$114.8K
Feb 26
−$66.2K
Aug 26
$0
Sep 26
$150.3K
Transaction texture
Ownership and ticket size
Average P/S size$48.5K
Median P/S size$43.7K
Direct9
Indirect4
Sep 15, 2026buy
Filing-only signals
Deterministic matches in this insider's history
Latest Form 4 facts
Quick context from source filings
Associated companies
Visual map of known reporting history
Latest insider transactions
Form 4 filings from available history. Click any column to sort; click it again to flip the order.
| ID | Ticker | Insider | Role | Type | Shares | Value | Code | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|
| #222051 | EU | Sheriff William M | CHAIR | buy | 50.0k | $4.45M | P | 09/16 | 09/15 |
| #222050 | EU | Sheriff William M | CHAIR | buy | 25.0k | $2.17M | P | 09/16 | 09/14 |
| #222049 | EU | Sheriff William M | CHAIR | buy | 100k | $8.40M | P | 09/16 | 09/14 |
| #11154 | EU | Sheriff William M | CHAIR | grant | 101k | $0 | A | 08/19 | 08/17 |
| #11153 | EU | Sheriff William M | CHAIR | grant | 101k | $0 | A | 08/19 | 08/17 |
| #63585 | EU | Sheriff William M | SR | sale10b5-1 | 12.0k | -$3.36M | S | 02/10 | 02/09 |
| #63584 | EU | Sheriff William M | SR | sale10b5-1 | 12.0k | -$3.26M | S | 02/10 | 02/06 |
| #105608 | EU | Sheriff William M | SR | sale10b5-1 | 2.20k | -$587k | S | 01/06 | 01/02 |
| #105607 | EU | Sheriff William M | SR | sale10b5-1 | 16.3k | -$4.36M | S | 01/06 | 01/02 |
| #105606 | EU | Sheriff William M | SR | sale10b5-1 | 24.0k | -$6.52M | S | 01/06 | 01/02 |
Sheriff William M Insider Activity FAQ
SEC Form 4 context
Who is Sheriff William M?
Sheriff William M is a reporting owner in SEC Form 4 filings with reporting owner CIK 0001229379.
Which companies has Sheriff William M reported transactions for?
enCore Energy Corp.
When was Sheriff William M's latest insider buy?
buy at enCore Energy Corp. on Sep 15, 2026 valued at $44,500.
When was Sheriff William M's latest insider sale?
sale at enCore Energy Corp. on Feb 09, 2026 valued at $33,600.
Where can I see the original SEC filings?
Each transaction row links directly to the source SEC filing so the reported Form 4 details can be reviewed.
Are performance metrics included?
This version does not calculate win rates, forward returns, benchmark-adjusted returns, or high-conviction scores.