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Ourania Tatsis

CIK 1789815 · EVP, Chief Reg. & Quality Off. · last filed 2026-07-23

Ourania Tatsis is an EVP, Chief Reg. & Quality Off. who has filed 77 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing, for VRTX, was dated Jul 23, 2026. Across all open-market trades the lifetime net is −$21.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $29.4M 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

$29.36M

Companies

3

Total Filings

77

Lifetime Open-Market Net

-$21.35M

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
VRTX EVP, Chief Reg. & Quality Off. 53,572 $548.05 $29.36M -$21.35M 50 2026-07-23
ODTX Director — $26.39 — $0 1 2026-05-11
Verve Therapeutics, Inc. (VERV) Delisted Director — $11.13 — $0 3 2025-07-28

Recent Filings

77 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
2026-07-23 VRTX Grant (A) +8,251 $0 EDGAR
2026-07-07 VRTX Sell (S) −1,500 -$787.5K EDGAR
2026-07-02 VRTX Notice (144) −1,500 -$787.5K EDGAR
2026-05-11 ODTX Grant (A) — $0 EDGAR
2026-02-26 VRTX Mixed −1,887 -$915.7K EDGAR
2026-02-25 VRTX Notice (144) −260 -$126.5K EDGAR
2026-02-19 VRTX Mixed +2,518 -$1.58M EDGAR
2026-02-18 VRTX Notice (144) −368 -$174.3K EDGAR
2026-02-18 VRTX Mixed −5,304 -$2.61M EDGAR
2026-02-17 VRTX Notice (144) −609 -$298.1K EDGAR
Showing 1–10 of 77
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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.