Derek DiRocco
CIK 1792061 · last filed 2026-06-22
"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
$186.1K
Companies
5
Total Filings
26
Lifetime Open-Market Net
$0
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 |
|---|---|---|---|---|---|---|---|
| ACRV | Director | 9,366 | $1.74 | $16.3K | $0 | 5 | 2026-06-22 |
| MLYS | Director | 6,200 | $27.38 | $169.8K | $0 | 4 | 2026-02-20 |
| 89bio, Inc. (ETNB) Delisted | Director | — | $14.84 | — | $0 | 8 | 2025-10-30 |
| HOWL | Director | — | $0.38 | — | $0 | 4 | 2024-05-24 |
| iTeos Therapeutics, Inc. (ITOS) Delisted | Director | — | $10.15 | — | $0 | 5 | 2023-06-15 |
Recent Filings · Page 3 of 3
26 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 |
|---|---|---|---|---|---|
| 2021-05-04 | HOWL | Grant (A) | — | $0 | EDGAR |
| 2021-04-19 | 89bio, Inc. (ETNB) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-10-21 | iTeos Therapeutics, Inc. (ITOS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-07-24 | iTeos Therapeutics, Inc. (ITOS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-07-14 | 89bio, Inc. (ETNB) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-04-07 | 89bio, Inc. (ETNB) Delisted | Grant (A) | — | $0 | EDGAR |
Showing 21–26 of 26
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Page 3 of 3
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.