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Built in Paris from official filings (AMF, SEC, BaFin, FCA, SEDI, ASX and others), normalised across markets and currencies. Out-of-sample tracker live since May 27, 2026. Read the method and the published audits.

Sources: official public filings under MAR art. 19, SEC Form 4 and equivalent regimes. Educational use only, not investment advice within the meaning of MiFID II. Past performance does not guarantee future results. Swiss SIX SER filings are anonymised by law.

© 2026 Insiders Trades·Free account open · Pro on waitlist·Self-hosted in Europe (Paris)·IP Geolocation by DB-IP

Service status·Built bySimon Azoulay

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David Grenville Thomas

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DG

David Grenville Thomas

Westhaven Ventures Inc.

Cumul. flow

Total declarations

39

Company

1

▲ Purchases (35 ops.)

€133k

▼ Sales (0 ops.)

—

Latest filing published 04 Nov 2019 for Westhaven Ventures Inc., €29k.

Buys €133k€0 Sells

Filing timeline

BuySale

David Grenville Thomas

Nov 16Nov 17Nov 18Nov 19Nov 20Nov 21Nov 22Nov 23Nov 24Nov 25

Insider track record

Disclosed buys

35

Disclosed sells

0

Signal history

David Grenville Thomas: trading record in brief

David Grenville Thomas is a declared insider of Westhaven Ventures Inc., with filings sourced from SEDI. We count 39 filings; the first trade dates from 8 March 2016 and the latest from 1 November 2019.

No open-market sale appears; the market trades are 35 purchases worth €133k. Buying on the open market means paying the going price with one's own funds, a different act from receiving shares as pay. Other entries cover 3 option exercises. 2019 to date brings 1 purchase and no sales.

In size, the median ticket on the buying side is €2,463.

The latest filing, published on 4 November 2019, reports an open-market purchase of €29k in Westhaven Ventures Inc. Between a trade and the moment it shows up on SEDI, the median delay is 1 day. Until a filing is published, the market cannot know about the trade. Source: insider filings from SEDI. Past trades are no guide to future returns.

Companies and markets linked to David Grenville Thomas

Open company profiles for insider transactions, fundamentals and analyst consensus when available.

Westhaven Ventures Inc. (CA)

Declarations39 total

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·1 Nov 2019·Westhaven Ventures Inc.

42,300 CAD12SEDI

50,000 shares@ CA$0.8468.4% of flowCommon SharesTSXSEDI:3443887

Canonical exit: 30 Jan 2020 (T+90)

◇

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·15 Oct 2018·Westhaven Ventures Inc.

88,636 CAD13SEDI

681,818 shares@ CA$0.1317.2% of flowCommon SharesTSXSEDI:3252656

●

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·25 Sept 2018·Westhaven Ventures Inc.

0SEDI

100,000 sharesCommon SharesTSXSEDI:3241796

◇

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·20 Sept 2018·Westhaven Ventures Inc.

66,667 CAD12SEDI

416,667 shares@ CA$0.1612.8% of flowCommon SharesTSXSEDI:3240089

◇

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·20 Sept 2018·Westhaven Ventures Inc.

320,000 CAD17SEDI

2,000,000 shares@ CA$0.1661.5% of flowCommon SharesTSXSEDI:3240092

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·2 Jun 2016·Westhaven Ventures Inc.

3,250 CAD0SEDI

25,000 shares@ CA$0.13Common SharesTSXSEDI:2847672

Canonical exit: 31 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·30 May 2016·Westhaven Ventures Inc.

390 CAD0SEDI

3,000 shares@ CA$0.13Common SharesTSXSEDI:2843943

Canonical exit: 28 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·27 May 2016·Westhaven Ventures Inc.

910 CAD0SEDI

7,000 shares@ CA$0.13Common SharesTSXSEDI:2843399

Canonical exit: 25 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·26 May 2016·Westhaven Ventures Inc.

6,890 CAD0SEDI

53,000 shares@ CA$0.13Common SharesTSXSEDI:2842625

Canonical exit: 24 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·24 May 2016·Westhaven Ventures Inc.

6,500 CAD0SEDI

50,000 shares@ CA$0.13Common SharesTSXSEDI:2841612

Canonical exit: 22 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·20 May 2016·Westhaven Ventures Inc.

1,430 CAD0SEDI

11,000 shares@ CA$0.13Common SharesTSXSEDI:2841125

Canonical exit: 18 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·18 May 2016·Westhaven Ventures Inc.

3,600 CAD0SEDI

30,000 shares@ CA$0.12Common SharesTSXSEDI:2839805

Canonical exit: 16 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·17 May 2016·Westhaven Ventures Inc.

14,400 CAD0SEDI

120,000 shares@ CA$0.12Common SharesTSXSEDI:2839804

Canonical exit: 15 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·5 May 2016·Westhaven Ventures Inc.

3,720 CAD0SEDI

31,000 shares@ CA$0.12Common SharesTSXSEDI:2835865

Canonical exit: 3 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·4 May 2016·Westhaven Ventures Inc.

1,740 CAD0SEDI

14,500 shares@ CA$0.12Common SharesTSXSEDI:2833052

Canonical exit: 2 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·3 May 2016·Westhaven Ventures Inc.

4,320 CAD0SEDI

36,000 shares@ CA$0.12Common SharesTSXSEDI:2832622

Canonical exit: 1 Aug 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·22 Apr 2016·Westhaven Ventures Inc.

210 CAD0SEDI

1,500 shares@ CA$0.14Common SharesTSXSEDI:2829307

Canonical exit: 21 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·22 Apr 2016·Westhaven Ventures Inc.

1,755 CAD0SEDI

13,500 shares@ CA$0.13Common SharesTSXSEDI:2829304

Canonical exit: 21 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·18 Apr 2016·Westhaven Ventures Inc.

4,030 CAD0SEDI

31,000 shares@ CA$0.13Common SharesTSXSEDI:2827501

Canonical exit: 17 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·12 Apr 2016·Westhaven Ventures Inc.

3,400 CAD0SEDI

34,000 shares@ CA$0.10Common SharesTSXSEDI:2825407

Canonical exit: 11 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·12 Apr 2016·Westhaven Ventures Inc.

11,067 CAD0SEDI

93,000 shares@ CA$0.119Common SharesTSXSEDI:2825406

Canonical exit: 11 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·11 Apr 2016·Westhaven Ventures Inc.

15,120 CAD0SEDI

144,000 shares@ CA$0.105Common SharesTSXSEDI:2824606

Canonical exit: 10 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·7 Apr 2016·Westhaven Ventures Inc.

2,000 CAD0SEDI

20,000 shares@ CA$0.10Common SharesTSXSEDI:2824190

Canonical exit: 6 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·6 Apr 2016·Westhaven Ventures Inc.

10,000 CAD0SEDI

100,000 shares@ CA$0.10Common SharesTSXSEDI:2822565

Canonical exit: 5 Jul 2016 (T+90)

▲

David Grenville Thomas

3 - 10% Security Holder of Issuer, 4 - Director of Issuer·Executives·4 Apr 2016·Westhaven Ventures Inc.

1,500 CAD0SEDI

15,000 shares@ CA$0.10Common SharesTSXSEDI:2820069

Canonical exit: 3 Jul 2016 (T+90)

25 of 39 declarations

Related entities

No related entities found.