Joseph M Lobacki
CIK 1536193 · Executive VP & CCO · last filed 2026-06-09
"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
$6.8K
Companies
5
Total Filings
21
Lifetime Open-Market Net
-$76.0K
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 |
|---|---|---|---|---|---|---|---|
| STRO | Director | — | $20.82 | — | $0 | 10 | 2026-06-09 |
| VSTM | Executive VP & CCO | 892 | $7.61 | $6.8K | $66.5K | 4 | 2019-01-07 |
| Celator Pharmaceuticals Inc (CPXX) Delisted | Director | — | — | — | $0 | 3 | 2016-07-12 |
| MEDIVATION, INC. (MDVN) Delisted | Chief Commercial Officer | 19,365 | — | — | -$142.5K | 2 | 2016-01-05 |
| MICROMET, INC. (MITI) Delisted | SVP & Chief Commercial Officer | — | — | — | $0 | 1 | 2011-12-05 |
Recent Filings · Page 2 of 3
21 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 |
|---|---|---|---|---|---|
| 2018-10-02 | VSTM | Buy (P) | +3,000 | $21.9K | EDGAR |
| 2018-09-27 | STRO | Grant (A) | — | $0 | EDGAR |
| 2018-06-12 | VSTM | Buy (P) | +7,700 | $44.6K | EDGAR |
| 2018-01-05 | VSTM | Grant (A) | — | $0 | EDGAR |
| 2016-07-12 | Celator Pharmaceuticals Inc (CPXX) Delisted | Disp (D) | — | $0 | EDGAR |
| 2016-01-05 | MEDIVATION, INC. (MDVN) Delisted | Sell (S) | −3,065 | -$142.5K | EDGAR |
| 2015-06-15 | Celator Pharmaceuticals Inc (CPXX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2014-12-15 | MEDIVATION, INC. (MDVN) Delisted | Grant (A) | +11,215 | $0 | EDGAR |
| 2013-12-19 | Celator Pharmaceuticals Inc (CPXX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2012-03-09 | — | Disp (D) | — | $0 |
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.