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ERROL B DESOUZA

CIK 1213895 · CEO · last filed 2026-06-17

ERROL B DESOUZA is a CEO who has filed 80 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for ALEC, was dated Jun 17, 2026. Across all open-market trades the lifetime net is +$33.4K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $13.5M across reported positions.

"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

$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

80 filings
Insider 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
2026-06-17 ALEC Grant (A) +28,700 $0 EDGAR
2025-06-12 ALEC Grant (A) +28,700 $0 EDGAR
2025-05-14 RPRX Grant (A) +7,614 $0 EDGAR
2024-06-10 RPRX Grant (A) +9,293 $0 EDGAR
2024-03-21 ALEC Grant (A) +41,250 $0 EDGAR
2023-12-04 CYCN Grant (A) +50,000 $0 EDGAR
2023-06-26 RPRX Grant (A) +7,747 $0 EDGAR
2022-06-24 RPRX Grant (A) +6,328 $0 EDGAR
2022-06-16 CYCN Grant (A) — $0 EDGAR
2021-10-05 CBIO Grant (A) +3,588 $0 EDGAR
Showing 1–10 of 80
Page 1 of 8
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.