Mark Lawrence Plaumann
Mark Lawrence Plaumann has made 1 open-market purchase worth $15k since Sep 17, 2026, in 1 company. The latest: $15k of TUSK, filed Sep 17, 2026, scored 44 out of 100.
Director, MAMMOTH ENERGY SERVICES, INC.
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Purchases
| Filed | Stock | Stake | Score | Bought | 1 week | 1 month |
|---|---|---|---|---|---|---|
| Sep 17 Form 4 (opens sec.gov) |
TUSKMAMMOTH ENERGY SERVICES, INC. · DirectorDirector | New position | 44 | $15k 5,000 at $3.00 |
— | — |
Questions
What stock has Mark Lawrence Plaumann bought?
TUSK (MAMMOTH ENERGY SERVICES, INC.), all on the open market and reported on SEC Form 4.
When did Mark Lawrence Plaumann last buy?
Sep 17, 2026: 5,000 shares of TUSK at $3.00, $15k in all (Form 4 (opens sec.gov)).
Has Mark Lawrence Plaumann filed a notice of a planned sale?
Not in the filings on record. A Form 144 is the notice an insider must file before selling restricted or control shares, and it lands on EDGAR before the sale is reported.
Is Mark Lawrence Plaumann a routine or an opportunistic buyer?
There isn't enough history to say yet.
Data as of Sep 17, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer