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 3 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 |
|---|---|---|---|---|---|
| 2013-12-19 | HollyFrontier Corp (HFC) Delisted | Sell (S) | −30,622 | -$1.46M | EDGAR |
| 2013-12-18 | HollyFrontier Corp (HFC) Delisted | Mixed | −11,024 | -$1.81M | EDGAR |
| 2013-11-14 | HollyFrontier Corp (HFC) Delisted | Grant (A) | +24,264 | $0 | EDGAR |
| 2013-03-28 | HollyFrontier Corp (HFC) Delisted | Sell (S) | −10,000 | -$518.6K | EDGAR |
| 2013-01-03 | HollyFrontier Corp (HFC) Delisted | Sell (S) | −10,000 | -$457.1K | EDGAR |
| 2012-12-19 | HollyFrontier Corp (HFC) Delisted | Mixed | +7,498 | -$2.39M | EDGAR |
| 2012-11-15 | HollyFrontier Corp (HFC) Delisted | Grant (A) | +25,389 | $0 | EDGAR |
| 2012-09-04 | HollyFrontier Corp (HFC) Delisted | Sell (S) | −12,400 | -$494.3K | EDGAR |
| 2012-06-25 | HollyFrontier Corp (HFC) Delisted | Sell (S) | −15,000 | -$493.6K | EDGAR |
| 2012-03-13 | HollyFrontier Corp (HFC) Delisted | Sell (S) | −28,000 | -$994.2K | 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.