DAVID L LAMP
CIK 1275536 · President and CEO · last filed 2025-12-12
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$745.4K
Companies
5
Total Filings
58
Lifetime Open-Market Net
-$8.72M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CVI | President and CEO | 17,388 | $42.87 | $745.4K | $0 | 11 | 2025-12-12 |
| Western Refining, Inc. (WNR) Delisted | President and COO | 0 | — | — | $0 | 4 | 2017-06-02 |
| Northern Tier Energy LP (NTI) Delisted | President and CEO | 354,129 | — | — | -$1.87M | 4 | 2016-01-22 |
| HollyFrontier Corp (HFC) Delisted | EVP & COO | 182,004 | $36.39 | $6.62M | -$6.12M | 15 | 2013-12-19 |
| HollyFrontier Corp (HOC) Delisted | President | 82,030 | — | — | -$728.3K | 23 | 2011-05-19 |
Recent Filings · Page 5 of 6
58 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2010-06-17 | HollyFrontier Corp (HOC) Delisted | Sell (S) | −7,000 | -$189.0K | EDGAR |
| 2010-05-13 | HollyFrontier Corp (HOC) Delisted | Sell (S) | −7,000 | -$189.1K | EDGAR |
| 2010-03-16 | HollyFrontier Corp (HOC) Delisted | Grant (A) | +15,256 | $0 | EDGAR |
| 2010-01-20 | HollyFrontier Corp (HOC) Delisted | Mixed | +7,716 | -$76.9K | EDGAR |
| 2010-01-05 | HollyFrontier Corp (HOC) Delisted | Tax (F) | −436 | -$11.2K | EDGAR |
| 2009-02-27 | HollyFrontier Corp (HOC) Delisted | Grant (A) | +17,622 | $0 | EDGAR |
| 2009-02-20 | HollyFrontier Corp (HOC) Delisted | Tax (F) | −1,471 | -$34.5K | EDGAR |
| 2009-01-14 | HollyFrontier Corp (HOC) Delisted | Mixed | +10,185 | -$72.1K | EDGAR |
| 2009-01-05 | HollyFrontier Corp (HOC) Delisted | Tax (F) | −1,263 | -$23.0K | EDGAR |
| 2008-03-11 | HollyFrontier Corp (HOC) Delisted | Grant (A) | +7,690 | $0 | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.