March 23, 1970: Selected Geoff Petrie (1st round, 8th pick), Walt Gilmore (2nd round, 25th pick), Bill Cain (3rd round, 42nd pick), Jim Penix (4th round, 59th pick), Ron Knight (5th round, 76th pick), George Janky (6th round, 93rd pick), Claude English (7th round, 110th pick), Doug Boyd (8th round, 127th pick), Billy Gaskins (9th round, 144th pick), Israel Oliver (10th round, 161st pick), Don McClemore (11th round, 176th pick), Paul Adams (12th round, 188th pick), Alex Boyd (13th round, 199th pick), Frank Loteridge (14th round, 208th pick), John Canady (15th round, 218th pick), Doug Williams (16th round, 226th pick), Bruce Butchko (18th round, 235th pick) and Mark Gabriel (19th round, 239th pick) in the 1970 NBA Draft.
September 11, 1972: Gary Gregor signed as a veteran free agent with the Philadelphia 76ers; received a 1974 2nd round draft pick (Rubin Collins) as compensation.
April 24, 1973: Selected Barry Parkhill (1st round, 15th pick), William Averitt (4th round, 55th pick), Fran Costello (5th round, 71st pick), Neal Jurgensen (6th round, 89th pick), Larry Hollyfield (7th round, 105th pick), Lendell Resson (8th round, 123rd pick), Mike Contreras (9th round, 139th pick), Sam Whitehead (10th round, 154th pick), Ed Payne (11th round, 167th pick) and Rick Holdt (12th round, 177th pick) in the 1973 NBA Draft.
June 27, 1973: Signed Bernie Fryer as a free agent.
October 1, 1973: Signed Mo Layton as a free agent.
October 31, 1973: Signed Mark Sibley as a free agent.
December 26, 1973: Signed Bob Verga as a free agent.
May 28, 1974: Selected Bill Walton (1st round, 1st pick), Jan Van Breda Kolff (2nd round, 20th pick), Phil Lumpkin (2nd round, 34th pick), Rubin Collins (2nd round, 36th pick), Mickey Johnson (4th round, 56th pick), Bernard Hardin (5th round, 74th pick), Dan Anderson (6th round, 92nd pick), Doug Richards (7th round, 110th pick), Eldridge Broussard (8th round, 128th pick), Lee Haven (9th round, 146th pick) and Ron Jones (10th round, 163rd pick) in the 1974 NBA Draft.
June 8, 1976: Selected Wally Walker (1st round, 5th pick), Major Jones (2nd round, 20th pick), Johnny Davis (2nd round, 22nd pick), Jeff Tyson (3rd round, 39th pick), David Everett (4th round, 56th pick), Gary Reddings (5th round, 73rd pick), Al DeWitt (7th round, 109th pick), Brant Gibbler (8th round, 127th pick), Rob Torresdal (9th round, 145th pick) and Marcus Leite (10th round, 162nd pick) in the 1976 NBA Draft.
October 22, 1976: Signed Corky Calhoun as a free agent.
February 11, 1977: Signed Clyde Mayes as a free agent.
June 10, 1977: Selected Rich Laurel (1st round, 19th pick), Kim Anderson (2nd round, 28th pick), T.R. Dunn (2nd round, 41st pick), Ricky Brown (3rd round, 63rd pick), Greg White (4th round, 85th pick), Donn Wilber (5th round, 107th pick), Myron Jordan (6th round, 128th pick), Don Smith (7th round, 148th pick) and Harold Rhodes (8th round, 167th pick) in the 1977 NBA Draft.
November 3, 1978: Signed Willie Smith as a free agent.
December 15, 1978: Signed Jim McMillian as a veteran free agent and sent a 1979 2nd round draft pick (Kim Goetz) to the New York Knicks as compensation.
February 17, 1979: Signed Ira Terrell as a free agent.
June 25, 1979: Selected Jim Paxson (1st round, 12th pick), Andrew Fields (2nd round, 40th pick), Mickey Fox (3rd round, 56th pick), Daryll Robinson (4th round, 78th pick), Matt White (5th round, 100th pick), Ray Ellis (6th round, 120th pick), Jeff Tropf (7th round, 140th pick), Willie Pounds (8th round, 159th pick), Stan Eckwood (9th round, 177th pick) and Kelvin Small (10th round, 195th pick) in the 1979 NBA Draft.
August 21, 1979: Signed Abdul Jeelani as a free agent.
September 24, 1980: Signed Roy Hamilton as a free agent.
October 8, 1980: Traded Jim Brewer to the Los Angeles Lakers for a 1984 2nd round draft pick (Jerome Kersey). Portland had the option to swap 1st round draft picks with Los Angeles in 1984 but opted for a 2nd round draft pick instead.