Insider · CIK 0002090886
Mumford Gregory J.D.
cfoofficer
Files at CIFR (Cipher Mining Inc.). First filing -, latest -.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 0
$0 bought, $0 sold
Signals
This insider’s open-market buys and sells, scored.
No scored open-market trades yet.
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | CIFR Cipher Mining Inc. | MOption exercise Common Stock | +17,109 | - | - | 37,316 | 2 d ago |
| Sep 30, 2026 | CIFR Cipher Mining Inc. | FTax withholding Common Stock | -6,895 | $15.83 | $109k | 30,421 | 2 d ago |
| Sep 30, 2026 | CIFR Cipher Mining Inc. | MOption exercise Restricted Stock Unitsderivative | -17,109 | $0.00 | $0 | 528,981 | 2 d ago |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.