Company · CIK 1397821 # Duff & Phelps Corp | CIK | [1397821](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001397821) (SEC EDGAR) | | --- | --- | | Industry (SIC) | 6211 — Security Brokers, Dealers & Flotation Companies | | Incorporated in | DE | | Business address | NY | | Listed | no ticker on SEC record today | | First annual or quarterly report | 2007-11-14 | ## Offerings 4 registrations | Registration | Label and status | First filed | Last event | Filings | | --- | --- | --- | --- | --- | | 333-181132 | Shelf Effective | 2012-05-03 | 2013-04-24 | 4 | | 333-162551 | Shelf Effective | 2009-10-16 | 2012-02-29 | 4 | | 333-158739 | Shelf Effective | 2009-04-24 | 2009-05-14 | 4 | | 333-143205 | IPO Final prospectus | 2007-05-23 | 2007-10-01 | 11 | ## Filings 23 | Filed | Filing | Registration | Accession | | --- | --- | --- | --- | | 2013-04-24 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1397821/999999999513001130/9999999995-13-001130-index.htm) Declared effective | 333-181132 | 9999999995-13-001130 | | 2012-08-08 | [424B5](https://www.sec.gov/Archives/edgar/data/1397821/000114420412043469/0001144204-12-043469-index.htm) Shelf takedown | 333-181132 | 0001144204-12-043469 | | 2012-05-29 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1397821/999999999512001663/9999999995-12-001663-index.htm) Declared effective | 333-181132 | 9999999995-12-001663 | | 2012-05-03 | [S-3](https://www.sec.gov/Archives/edgar/data/1397821/000114420412025924/0001144204-12-025924-index.htm) Shelf registered | 333-181132 | 0001144204-12-025924 | | 2012-02-29 | [424B5](https://www.sec.gov/Archives/edgar/data/1397821/000114420412011776/0001144204-12-011776-index.htm) Shelf takedown | 333-162551 | 0001144204-12-011776 | | 2009-11-06 | [424B5](https://www.sec.gov/Archives/edgar/data/1397821/000114420409057177/0001144204-09-057177-index.htm) Shelf takedown | 333-162551 | 0001144204-09-057177 | | 2009-10-26 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1397821/999999999509002950/9999999995-09-002950-index.htm) Declared effective | 333-162551 | 9999999995-09-002950 | | 2009-10-16 | [S-3](https://www.sec.gov/Archives/edgar/data/1397821/000114420409053381/0001144204-09-053381-index.htm) Shelf registered | 333-162551 | 0001144204-09-053381 | | 2009-05-14 | [424B5](https://www.sec.gov/Archives/edgar/data/1397821/000114420409026332/0001144204-09-026332-index.htm) Shelf takedown | 333-158739 | 0001144204-09-026332 | | 2009-05-05 | [424B5](https://www.sec.gov/Archives/edgar/data/1397821/000114420409024032/0001144204-09-024032-index.htm) Shelf takedown | 333-158739 | 0001144204-09-024032 | | 2009-05-04 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1397821/999999999509001285/9999999995-09-001285-index.htm) Declared effective | 333-158739 | 9999999995-09-001285 | | 2009-04-24 | [S-3](https://www.sec.gov/Archives/edgar/data/1397821/000114420409022124/0001144204-09-022124-index.htm) Shelf registered | 333-158739 | 0001144204-09-022124 | | 2007-10-01 | [424B1](https://www.sec.gov/Archives/edgar/data/1397821/000104746907007358/0001047469-07-007358-index.htm) Final prospectus | 333-143205 | 0001047469-07-007358 | | 2007-09-27 | [EFFECT](https://www.sec.gov/Archives/edgar/data/1397821/999999999507003822/9999999995-07-003822-index.htm) Declared effective | 333-143205 | 9999999995-07-003822 | | 2007-09-21 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907007119/0001047469-07-007119-index.htm) Amendment | 333-143205 | 0001047469-07-007119 | | 2007-09-17 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907007050/0001047469-07-007050-index.htm) Amendment | 333-143205 | 0001047469-07-007050 | | 2007-09-13 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907006982/0001047469-07-006982-index.htm) Amendment | 333-143205 | 0001047469-07-006982 | | 2007-09-05 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907006826/0001047469-07-006826-index.htm) Amendment | 333-143205 | 0001047469-07-006826 | | 2007-08-28 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907006701/0001047469-07-006701-index.htm) Amendment | 333-143205 | 0001047469-07-006701 | | 2007-08-10 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907006266/0001047469-07-006266-index.htm) Amendment | 333-143205 | 0001047469-07-006266 | | 2007-07-26 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907005868/0001047469-07-005868-index.htm) Amendment | 333-143205 | 0001047469-07-005868 | | 2007-06-29 | [S-1/A](https://www.sec.gov/Archives/edgar/data/1397821/000104746907005285/0001047469-07-005285-index.htm) Amendment | 333-143205 | 0001047469-07-005285 | | 2007-05-23 | [S-1](https://www.sec.gov/Archives/edgar/data/1397821/000104746907004576/0001047469-07-004576-index.htm) Registration filed | 333-143205 | 0001047469-07-004576 | [All filings of this company](https://equitycapital.markets/filings?cik=1397821) · [CSV](https://equitycapital.markets/filings.csv?cik=1397821) --- Source page: https://equitycapital.markets/company/1397821 · Data: U.S. SEC EDGAR · CC BY 4.0