DENNIS LANGER
CIK 1274225 · last filed 2026-02-06
"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.
Loading insider history…
Disclosed Exposure
$417.6K
Companies
10
Total Filings
71
Lifetime Open-Market Net
-$10.51M
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 |
|---|---|---|---|---|---|---|---|
| QNRX | Director | 15,153 | $5.18 | $78.5K | $128.4K | 7 | 2026-02-06 |
| MYGN | Director | 106,802 | $3.17 | $339.1K | -$9.94M | 26 | 2022-06-30 |
| BTX | Director | — | $8.62 | — | $0 | 1 | 2021-12-10 |
| Dicerna Pharmaceuticals Inc (DRNA) Delisted | Director | 77,042 | $38.22 | $2.94M | -$697.1K | 11 | 2019-06-21 |
| PERNIX THERAPEUTICS HOLDINGS, INC. (PTX) Delisted | Director | — | — | — | $0 | 3 | 2018-05-23 |
| DCTH | Director | 0 | $17.28 | $0 | $0 | 2 | 2015-06-12 |
| Myrexis, Inc. (MYRX) Delisted | Director | — | — | — | $0 | 3 | 2011-12-12 |
| AUXILIUM PHARMACEUTICALS INC (AUXL) Delisted | Director | 1,366 | — | — | $0 | 13 | 2010-06-07 |
| CYTOGEN CORP (CYTO) Delisted | Director | 0 | $0.30 | $0 | $0 | 2 | 2008-05-09 |
| PHARMACOPEIA INC (PCOP) Delisted | Director | — | — | — | $0 | 1 | 2008-05-02 |
Recent Filings · Page 3 of 8
71 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 |
|---|---|---|---|---|---|
| 2018-06-05 | MYGN | Mixed | — | -$769.3K | EDGAR |
| 2018-06-01 | MYGN | Mixed | — | -$135.3K | EDGAR |
| 2018-05-23 | PERNIX THERAPEUTICS HOLDINGS, INC. (PTX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2018-05-21 | MYGN | Mixed | — | -$115.1K | EDGAR |
| 2018-01-30 | Dicerna Pharmaceuticals Inc (DRNA) Delisted | Exer (M) | +360 | $1.2K | EDGAR |
| 2017-11-30 | MYGN | Grant (A) | +7,219 | $0 | EDGAR |
| 2017-11-17 | PERNIX THERAPEUTICS HOLDINGS, INC. (PTX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2017-07-20 | Dicerna Pharmaceuticals Inc (DRNA) Delisted | Grant (A) | — | $0 | EDGAR |
| 2016-12-01 | MYGN | Grant (A) | +15,024 | $0 | EDGAR |
| 2016-11-17 | Dicerna Pharmaceuticals Inc (DRNA) Delisted | Sell (S) | −23,766 | -$83.7K | 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.