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Westend S.A.

CIK 1283968 · last filed 2024-03-25

Westend S.A. is a corporate insider who has filed 11 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing shows the insider sold $795.0M of CAVA on Mar 25, 2024. Across all open-market trades the lifetime net is −$4.81B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.21B across reported positions. The firm reports its address in Luxembourg, N4. 75 SEC filings were submitted jointly with Artal Group S.A.

"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

$6.21B

Companies

6

Total Filings

11

Lifetime Open-Market Net

-$4.81B

Filer Profile

Reported Address
VALLEY PARK
44, RUE DE LA VALLEE
LUXEMBOURG, N4 L-2661
Phone
(352) 224-2591
State of Incorporation
Luxembourg
Formerly Known As
WESTEND SA (2004–2012)
Related Filers
Artal Group S.A. — 75 joint filings, latest 2026-06-17
International S.C.A. Artal — 75 joint filings, latest 2026-06-17
Administratiekantoor Westend Stichting — 74 joint filings, latest 2026-06-17
Artal International Management S.A. — 70 joint filings, latest 2026-06-17
Invus Public Equities Advisors, LLC — 40 joint filings, latest 2024-05-14
Invus Public Equities, L.P. — 40 joint filings, latest 2024-05-14
Pascal Minne — 39 joint filings, latest 2020-12-17
Amaury Wittouck — 31 joint filings, latest 2026-06-17
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
CAVA Director 26,507,990 $52.47 $1.39B -$795.00M 2 2024-03-25
CRESCENT BIOPHARMA, INC. (GLYC) Delisted 10%+ Owner 85,891 $15.70 $1.35M $1.36M 1 2023-02-28
SRRK 10%+ Owner 8,850,005 $49.23 $435.69M $6.08M 1 2022-10-07
WTW 10%+ Owner 14,818,300 $295.29 $4.38B -$4.08B 5 2018-08-16
LXRX Director 2,130,717 $1.82 $3.89M $50.03M 1 2018-06-04
Ceres, Inc. (CERE) Delisted Director 524,021 $44.96 $23.56M $0 1 2012-11-13

Recent Filings

11 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
2024-03-25 CAVA Sell (S) −12,000,000 -$795.00M EDGAR
2023-06-22 CAVA Exer (M) +192,047,940 $0 EDGAR
2023-02-28 CRESCENT BIOPHARMA, INC. (GLYC) Delisted Buy (P) +800,000 $1.36M EDGAR
2022-10-07 SRRK Buy (P) +799,768 $6.08M EDGAR
2018-08-16 WTW Sell (S) −42,000,000 -$3.19B EDGAR
2018-06-04 LXRX Buy (P) +4,164,810 $50.03M EDGAR
2014-08-19 WTW Buy (P) +362,530 $8.47M EDGAR
2014-08-06 WTW Buy (P) +1,804,887 $38.96M EDGAR
2012-11-13 Ceres, Inc. (CERE) Delisted Other (J) +946,624 $4.58M EDGAR
2011-02-28 WTW Sell (S) −6,000,000 -$364.50M EDGAR
Showing 1–10 of 11
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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.