Schiffer Vivienne — SEC Form 4 filings
SEC reporting owner CIK 1835547. 10 Form 4 filings on record with FilingPulse; latest filed 2026-04-01.
Transaction summary — filings shown
Covers all 10 filings on record, filed 2024-03-06 to 2026-04-01. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 25.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Great Lakes Dredge & Dock CORP (GLDD) | SVP, CLO, CCO & Corp Secretary | 10 | — | — | 25 |
Form 4 filings — Schiffer Vivienne
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-04-01 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Grant/award (A): 28,945 · Code (U): 144,817 | EDGAR |
| 2026-03-25 | 4/A | Great Lakes Dredge & Dock CORP (GLDD) | Grant/award (A): 18,035 | EDGAR |
| 2026-03-18 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Tax withholding (F): 2,060 @ $16.93 · Grant/award (A): 14,213 · Tax withholding (F): 3,461 @ $16.93 · Tax withholding (F): 2,058 @ $16.93 · Grant/award (A): 10,454 · Tax withholding (F): 2,546 @ $16.93 | EDGAR |
| 2026-02-25 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Grant/award (A): 19,149 | EDGAR |
| 2025-05-12 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Grant/award (A): 18,035 | EDGAR |
| 2025-05-07 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Tax withholding (F): 1,070 @ $9.54 · Tax withholding (F): 683 @ $9.54 | EDGAR |
| 2025-03-18 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Tax withholding (F): 1,864 @ $8.70 · Grant/award (A): 14,043 · Tax withholding (F): 3,420 @ $8.70 · Tax withholding (F): 1,274 @ $8.70 · Grant/award (A): 10,402 · Tax withholding (F): 2,533 @ $8.70 | EDGAR |
| 2024-05-07 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Tax withholding (F): 1,070 @ $7.04 | EDGAR |
| 2024-03-19 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Grant/award (A): 7,752 · Tax withholding (F): 3,051 @ $8.62 · Tax withholding (F): 3,012 @ $8.62 · Grant/award (A): 15,684 | EDGAR |
| 2024-03-06 | 4 | Great Lakes Dredge & Dock CORP (GLDD) | Tax withholding (F): 895 @ $8.70 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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