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Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Latest filing published 01 Apr 2026 for Great Lakes Dredge & Dock CORP.
Insider track record
Disclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Vivienne Schiffer: trading record in brief
Vivienne Schiffer, listed as senior executive, appears in our data through filings on Great Lakes Dredge & Dock Corp shares, published by SEC (Form 4). In total, 32 filings cover trades dated from 5 March 2021 to 1 April 2026.
No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Grants and option exercises follow pay plans set in advance, so they reveal less about an insider's own view than a purchase made with personal money.
The newest entry dates from 1 April 2026: a share grant, in Great Lakes Dredge & Dock Corp. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. Section 16 rules allow two business days to file each Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to Vivienne Schiffer
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations17 total
28,945 sharesCommon StockSEC:0001193125-26-138046:0
144,817 sharesCommon StockSEC:0001193125-26-138046:1
18,035 sharesCommon StockSEC:0001193125-26-124237:0
2,060 shares@ US$16.9333.1% of flowCommon StockSEC:0001193125-26-114344:0
19,149 sharesCommon StockSEC:0001193125-26-072028:0
18,035 sharesCommon StockSEC:0000950170-25-069522:0
1,070 shares@ US$9.5414.6% of flowCommon StockSEC:0000950170-25-066027:0
1,864 shares@ US$8.7024.1% of flowCommon StockSEC:0000950170-25-041398:0
1,070 shares@ US$7.0411.3% of flowCommon StockSEC:0000950170-24-054652:0
7,752 sharesCommon StockSEC:0001209191-24-004943:0
895 shares@ US$8.7011.6% of flowCommon StockSEC:0001209191-24-004558:0
1,296 shares@ US$5.7510.9% of flowCommon StockSEC:0001209191-23-028325:0
22,960 sharesCommon StockSEC:0001209191-23-019677:0
1,152 shares@ US$5.7810.1% of flowCommon StockSEC:0001209191-23-017318:0
8,156 shares0Common StockSEC:0001209191-22-035971:0
7,878 sharesCommon StockSEC:0001209191-22-027815:0
782 shares@ US$14.7811.5% of flowCommon StockSEC:0001209191-22-017686:0
17 of 17 declarations
