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Built in Paris. Public sources across 28 markets: AMF France, SEC EDGAR Form 4 US, BaFin Germany, SIX SER Switzerland, RNS United Kingdom, SEDI Canada, Consob Italy, CNMV Spain, AFM Netherlands, FSMA Belgium, Oslo Bors Norway, Nasdaq Helsinki, Nasdaq Copenhagen, ASX Australia, FMA Austria, CVM Brazil, HKEX Hong Kong, BSE-Sofia Bulgaria, Tadawul Saudi Arabia, DART South Korea, EDINET Japan, SSE and SZSE China, SEBI India, KNF Poland, PSE Philippines, NZX New Zealand, JSE South Africa. Prices + fundamentals via Yahoo Finance, STOXX 600 sector ETFs (iShares Xetra). Stack: Next.js 16, Prisma, Vercel. Live out-of-sample tracker since 2026-05-16. Methodology audits: /methodologie and /docs/method-review/.

Sources: official public filings under MAR Art.19 (EU and EEA), SEC Section 16 / Form 4 (US), Art.56 SESTA (CH, SIX SER), NI 55-104 / SEDI (CA), Corporations Act s205G (AU) and equivalent regimes. Signals on this site are for educational use only and do not constitute investment advice within the meaning of MiFID II / SEC Reg-IA. Past performance does not guarantee future results. Swiss SIX SER filings are anonymised by law (role only, no name).

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MAO ROBERT YU LANG | Insider Transactions

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MR

MAO ROBERT YU LANG

Other

USUS·SEC (Form 4)

Energy Recovery, Inc.

0

Total declarations

0

Company

—

▲ Purchases (0 ops.)

—

▼ Sales (0 ops.)

Explore the detailed record of transactions filed by MAO ROBERT YU LANG. Director active across 1 companies, notably Energy Recovery, Inc.. Cumulatively, 4 filings have been published. The latest transaction was filed on 29 September 2021 (Don). Regulator: SEC (Form 4). The full history is openly available.

Declarations4 total

Executives●DonEEnergy Recovery, Inc.16SEC

M

MAO ROBERT YU LANGPresident and CEO

0121,403 shares0

Common Stock

SEC:0001421517-21-000128·29 Sept 2021

Executives●DonEEnergy Recovery, Inc.16SEC

M

MAO ROBERT YU LANGPresident and CEO

0121,403 shares0

Common Stock

SEC:0001421517-21-000126·29 Sept 2021

Executives●DonEEnergy Recovery, Inc.24SEC

M

MAO ROBERT YU LANGPresident and CEO

0121,403 shares0

Common Stock

SEC:0001421517-21-000128:0·29 Sept 2021

Executives●DonEEnergy Recovery, Inc.24SEC

M

MAO ROBERT YU LANGPresident and CEO

0121,403 shares0

Common Stock

SEC:0001421517-21-000126:0·29 Sept 2021

4 of 4 declarations

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Energy Recovery, Inc.

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