ERROL B DESOUZA
CIK 1213895 · CEO · last filed 2026-06-17
"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
$13.52M
Companies
7
Total Filings
80
Lifetime Open-Market Net
$33.4K
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 |
|---|---|---|---|---|---|---|---|
| ALEC | Director | 98,650 | $1.52 | $149.9K | $0 | 3 | 2026-06-17 |
| RPRX | Director | 81,352 | $59.97 | $4.88M | $0 | 7 | 2025-05-14 |
| CYCN | Director | 50,000 | $3.50 | $175.0K | $0 | 3 | 2023-12-04 |
| CBIO | Director | 1,987 | $16.44 | $32.7K | $0 | 20 | 2021-10-05 |
| ALBIREO PHARMA, INC. (BIOD) Delisted | CEO | 5,314 | — | — | $33.4K | 18 | 2015-10-02 |
| PTN | Director | — | $7.68 | — | $0 | 4 | 2010-07-23 |
| IDXX | Director | 14,552 | $569.54 | $8.29M | $0 | 13 | 2009-05-01 |
Recent Filings · Page 2 of 8
80 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 |
|---|---|---|---|---|---|
| 2021-07-02 | CBIO | Grant (A) | +3,406 | $0 | EDGAR |
| 2021-06-29 | RPRX | Grant (A) | +5,726 | $0 | EDGAR |
| 2021-06-28 | CYCN | Grant (A) | — | $0 | EDGAR |
| 2021-04-05 | CBIO | Grant (A) | +2,926 | $0 | EDGAR |
| 2021-01-06 | CBIO | Grant (A) | +2,129 | $0 | EDGAR |
| 2020-10-02 | CBIO | Grant (A) | +3,125 | $0 | EDGAR |
| 2020-09-23 | RPRX | Grant (A) | +8,929 | $0 | EDGAR |
| 2020-07-02 | CBIO | Grant (A) | +2,129 | $0 | EDGAR |
| 2020-06-17 | RPRX | Grant (A) | +35,715 | $0 | EDGAR |
| 2020-06-12 | CBIO | Grant (A) | — | $0 | 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.