Tatsis Ourania
Director · Officer · VRTX, ODTX, VERV
As of 2026-09-27, Tatsis Ourania has 45 Form 4 transactions on record across 3 companies — 17 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in February in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-02 | VRTX | Sale | 1,500 @ $524.99 | $787K | −3.2% of holding | 45,321 | Form 4 |
| 2026-02-25 | VRTX | Sale | 260 @ $486.35 | $126K | −0.6% of holding | 46,763 | Form 4 |
| 2026-02-18 | VRTX | Sale | 368 @ $473.68 | $174K | −0.8% of holding | 48,650 | Form 4 |
| 2026-02-17 | VRTX | Sale | 609 @ $489.46 | $298K | −1.2% of holding | 49,018 | Form 4 |
| 2026-02-13 | VRTX | Sale | 1,500 @ $499.99 | $750K | −3.1% of holding | 46,132 | Form 4 |
| 2026-02-11 | VRTX | Sale | 466 @ $460.43 | $215K | −0.9% of holding | 51,436 | Form 4 |
| 2026-01-07 | VRTX | Sale | 4,500 @ $474.99 | $2.1M | −9.6% of holding | 42,293 | Form 4 |
| 2025-12-03 | VRTX | Sale | 4,500 @ $449.99 | $2.0M | −8.8% of holding | 46,793 | Form 4 |
| 2025-03-10 | VRTX | Sale | 3,242 @ $499.99 | $1.6M | −6.0% of holding | 51,239 | Form 4 |
| 2025-03-04 | VRTX | Sale | 4,058 @ $485.49 | $2.0M | −6.9% of holding | 54,481 | Form 4 |
| 2025-02-27 | VRTX | Sale | 530 @ $475.34 | $252K | −0.9% of holding | 58,539 | Form 4 |
| 2025-02-25 | VRTX | Sale | 354 @ $480.95 | $170K | −0.5% of holding | 64,031 | Form 4 |
| 2025-02-18 | VRTX | Sale | 244 @ $455.06 | $111K | −0.4% of holding | 67,695 | Form 4 |
| 2025-02-11 | VRTX | Sale | 310 @ $459.83 | $143K | −0.5% of holding | 64,021 | Form 4 |
| 2024-06-03 | VRTX | Sale | 2,175 @ $460.00 | $1.0M | −4.2% of holding | 49,098 | Form 4 |
| 2024-05-31 | VRTX | Sale | 2,250 @ $445.00 | $1.0M | −4.2% of holding | 51,273 | Form 4 |
| 2024-05-30 | VRTX | Sale | 2,350 @ $439.11 | $1.0M | −4.2% of holding | 53,523 | Form 4 |
| 2024-02-26 | VRTX | Sale | 354 @ $425.70 | $151K | −0.6% of holding | 55,804 | Form 4 |
| 2024-02-21 | VRTX | Sale | 360 @ $421.77 | $152K | −0.6% of holding | 59,467 | Form 4 |
| 2024-02-20 | VRTX | Sale | 480 @ $420.79 | $202K | −0.8% of holding | 59,827 | Form 4 |
25 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-07-21 | VRTX | Award / grant | 8,251 | 53,572 | Form 4 |
| 2026-05-07 | ODTX | Award / grant | 27,393 | 27,393 | Form 4 |
| 2026-02-24 | VRTX | Withheld for tax | 1,627 | 47,023 | Form 4 |
| 2026-02-17 | VRTX | Withheld for tax | 2,294 | 49,627 | Form 4 |
| 2026-02-17 | VRTX | Award / grant | 5,789 | 51,921 | Form 4 |
| 2026-02-13 | VRTX | Withheld for tax | 3,804 | 47,632 | Form 4 |
| 2026-02-10 | VRTX | Withheld for tax | 2,140 | 51,902 | Form 4 |
| 2026-01-22 | VRTX | Award / grant | 3,883 | 54,042 | Form 4 |
| 2026-01-22 | VRTX | Award / grant | 7,866 | 50,159 | Form 4 |
| 2025-07-25 | VERV | Disposition | 267,541 | 0 | Form 4 |
| 2025-07-25 | VERV | Disposition | 42,200 | 0 | Form 4 |
| 2025-07-25 | VERV | Disposition | 267,541 | 0 | Form 4 |
| 2025-07-25 | VERV | Disposition | 42,200 | 0 | Form 4 |
| 2025-06-05 | VERV | Award / grant | 42,200 | 42,200 | Form 4 |
| 2025-02-26 | VRTX | Withheld for tax | 4,962 | 59,069 | Form 4 |
| 2025-02-24 | VRTX | Withheld for tax | 3,310 | 64,385 | Form 4 |
| 2025-02-14 | VRTX | Withheld for tax | 2,293 | 67,939 | Form 4 |
| 2025-02-12 | VRTX | Award / grant | 6,211 | 70,232 | Form 4 |
| 2025-02-10 | VRTX | Withheld for tax | 2,143 | 64,331 | Form 4 |
| 2025-02-04 | VRTX | Award / grant | 10,262 | 59,360 | Form 4 |
| 2025-02-04 | VRTX | Award / grant | 7,114 | 66,474 | Form 4 |
| 2024-06-26 | VERV | Award / grant | 267,541 | 267,541 | Form 4 |
| 2024-02-23 | VRTX | Withheld for tax | 3,309 | 56,158 | Form 4 |
| 2024-02-20 | VRTX | Withheld for tax | 3,373 | 60,307 | Form 4 |
| 2024-02-16 | VRTX | Withheld for tax | 4,499 | 63,680 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.