Keith Murphy
CIK 1536583 · EXECUTIVE CHAIRMAN · last filed 2026-01-29
"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
$9.9K
Companies
4
Total Filings
36
Lifetime Open-Market Net
-$4.45M
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 |
|---|---|---|---|---|---|---|---|
| VIVS | EXECUTIVE CHAIRMAN | 26,053 | $0.38 | $9.9K | $0 | 1 | 2026-01-29 |
| MTNB | Director | — | $0.29 | — | $0 | 1 | 2025-05-02 |
| VivoSim Labs, INC. (ONVO) Delisted | EXECUTIVE CHAIRMAN | 36,340 | $2.04 | $74.1K | -$4.45M | 28 | 2024-08-07 |
| TuHURA Biosciences, Inc./NV (KTRA) Delisted | Director | 103 | $7.54 | $777 | $0 | 3 | 2021-09-22 |
Recent Filings · Page 2 of 4
36 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 |
|---|---|---|---|---|---|
| 2020-09-17 | VivoSim Labs, INC. (ONVO) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-09-17 | TuHURA Biosciences, Inc./NV (KTRA) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-08-21 | TuHURA Biosciences, Inc./NV (KTRA) Delisted | Buy (P) | +181,010 | $0 | EDGAR |
| 2017-12-04 | VivoSim Labs, INC. (ONVO) Delisted | Buy (P) | +335,500 | $501.3K | EDGAR |
| 2017-02-21 | VivoSim Labs, INC. (ONVO) Delisted | Tax (F) | −5,742 | -$16.9K | EDGAR |
| 2017-02-10 | VivoSim Labs, INC. (ONVO) Delisted | Mixed | +5,000 | -$62.0K | EDGAR |
| 2017-01-25 | VivoSim Labs, INC. (ONVO) Delisted | Sell (S) | −25,000 | -$87.7K | EDGAR |
| 2016-12-15 | VivoSim Labs, INC. (ONVO) Delisted | Sell (S) | −50,000 | -$186.0K | EDGAR |
| 2016-11-18 | VivoSim Labs, INC. (ONVO) Delisted | Tax (F) | −7,200 | -$23.5K | EDGAR |
| 2016-09-20 | VivoSim Labs, INC. (ONVO) Delisted | Tax (F) | −1,394 | -$5.6K | 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.