Eric Crombez

CIK 1653052 · EVP and Chief Medical Officer · last filed 2026-05-15

"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

$3.26M

Companies

3

Total Filings

21

Lifetime Open-Market Net

-$922.8K

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
ABEO Director 37,313 $7.45 $278.0K -$260.2K 6 2026-05-15
RARE EVP and Chief Medical Officer 111,189 $26.80 $2.98M -$662.6K 10 2026-05-06
Dimension Therapeutics, Inc. (DMTX) Delisted Chief Medical Officer $0 3 2017-11-07

Recent Filings · Page 2 of 3

21 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
2025-03-04 RARE Mixed +22,839 -$376.6K EDGAR
2025-02-03 ABEO Grant (A) +36,101 $0 EDGAR
2024-08-14 ABEO Grant (A) +11,044 $0 EDGAR
2024-05-03 RARE Sell (S) −354 -$15.5K EDGAR
2024-04-19 RARE Sell (S) −142 -$6.3K EDGAR
2024-03-05 RARE Mixed +18,162 -$66.6K EDGAR
2023-09-29 RARE Grant (A) $0 EDGAR
2023-05-02 RARE Grant (A) +4,658 $0 EDGAR
2017-11-07 Dimension Therapeutics, Inc. (DMTX) Delisted Disp (D) $0 EDGAR
2017-02-03 Dimension Therapeutics, Inc. (DMTX) Delisted Grant (A) $0 EDGAR
Showing 1120 of 21
Page 2 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.