| Transactions |
| Date | Team | Player | Type | OthTm | EffDate | When |
| 4/28/1969 | Mon | Crowley | Demoted to reserve roster |   |   | Before |
| 4/28/1969 | SD | Garber | Demoted to reserve roster |   |   | Before |
| 4/28/1969 | SD | Scherman | Demoted to reserve roster |   |   | Before |
| 5/20/1969 | Cin | Hall,D | Demoted to reserve roster |   |   | Before |
| 5/20/1969 | Cin | Worthngton | Promoted to active roster |   |   | Before |
| 5/26/1969 | NYN | Foster | Demoted to reserve roster |   |   | Before |
| 5/30/1969 | SD | Decker | Demoted to reserve roster |   |   | Before |
| 6/9/1969 | Cin | Hall,D | Promoted to active roster |   |   | Before |
| 6/13/1969 | Hou | Klimkowski | Demoted to reserve roster |   |   | Before |
| 6/13/1969 | SD | Valentine | Demoted to reserve roster |   |   | Before |
| 6/20/1969 | StL | Holt | Demoted to reserve roster |   |   | Before |
| 6/27/1969 | SD | Kelso | Demoted to reserve roster |   |   | Before |
| 6/27/1969 | StL | Bosch | Demoted to reserve roster |   |   | Before |
| 6/30/1969 | Cin | Worthngton | Demoted to reserve roster |   |   | Before |
| 6/30/1969 | StL | Bravo | Demoted to reserve roster |   |   | Before |
| 7/7/1969 | StL | Tillman | Demoted to reserve roster |   |   | Before |
| 7/9/1969 | SD | Hilgendorf | Demoted to reserve roster |   |   | Before |
| 7/11/1969 | NYN | Severinsen | Demoted to reserve roster |   |   | Before |
| 7/11/1969 | SF | Cleveland | Demoted to reserve roster |   |   | Before |
| 7/11/1969 | StL | Reuss | Demoted to reserve roster |   |   | Before |
| 7/14/1969 | StL | Sanders | Demoted to reserve roster |   |   | Before |
| 7/16/1969 | SD | Lum | Demoted to reserve roster |   |   | Before |
| 7/18/1969 | ChN | Savage | Demoted to reserve roster |   |   | Before |
| 7/25/1969 | Mon | Hall,J | Demoted to reserve roster |   |   | Before |
| 7/28/1969 | Cin | Worthngton | Promoted to active roster |   |   | Before |
| 7/28/1969 | SD | Harrison | Demoted to reserve roster |   |   | Before |
| 7/28/1969 | SF | Bailey | Demoted to reserve roster |   |   | Before |
| 7/28/1969 | SF | Bailey | Promoted to active roster |   |   | Before |
| 7/28/1969 | StL | Short | Signed |   |   | Before |
| 7/30/1969 | SD | Brand | Demoted to reserve roster |   |   | Before |
| 8/1/1969 | SD | Sisk | Demoted to reserve roster |   |   | Before |
| 8/1/1969 | SD | Voss | Demoted to reserve roster |   |   | Before |
| 8/4/1969 | Hou | Kirkpatrick | Demoted to reserve roster |   |   | Before |
| 8/4/1969 | Mon | Hershbrger | Demoted to reserve roster |   |   | Before |
| 8/4/1969 | NYN | Dyer | Demoted to reserve roster |   |   | Before |
| 8/4/1969 | StL | Hegan | Demoted to reserve roster |   |   | Before |
| 8/6/1969 | LAN | Lachemann | Demoted to reserve roster |   |   | Before |
| 8/6/1969 | Mon | Woodward | Demoted to reserve roster |   |   | Before |
| 8/11/1969 | SD | Moore | Demoted to reserve roster |   |   | Before |
| 8/11/1969 | StL | Buchek | Signed |   |   | Before |
| 8/18/1969 | SD | Hedlund | Demoted to reserve roster |   |   | Before |
| 8/18/1969 | StL | Ryan | Demoted to reserve roster |   |   | Before |
| 8/18/1969 | StL | Stone,R | Demoted to reserve roster |   |   | Before |
| 8/20/1969 | SD | Bryant,D | Signed |   |   | Before |
| 8/20/1969 | SD | Look | Demoted to reserve roster |   |   | Before |
| 8/20/1969 | SD | Morris | Demoted to reserve roster |   |   | Before |
| 8/22/1969 | ChN | Salmon | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | ChN | Ribant | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | ChN | Secrist | Signed |   |   | Before |
| 8/25/1969 | Cin | Jeter | Signed |   |   | Before |
| 8/25/1969 | Cin | Queen | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | Cin | Queen | Promoted to active roster |   |   | Before |
| 8/25/1969 | Cin | Worthngton | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | Hou | Nolan | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | Phi | Shamsky | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | SD | Martinez | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | SD | Moeller | Demoted to reserve roster |   |   | Before |
| 8/25/1969 | StL | Corkins | Signed |   |   | Before |
| 8/25/1969 | StL | Hamilton | Demoted to reserve roster |   |   | Before |
| 8/27/1969 | Pit | Bennett | Demoted to reserve roster |   |   | Before |
| 8/27/1969 | Pit | Zepp | Signed |   |   | Before |
| 8/27/1969 | Pit | Zepp | Demoted to reserve roster |   |   | Before |
| 8/29/1969 | ChN | Johnson,BW | Demoted to reserve roster |   |   | Before |
| 8/29/1969 | Mon | Kosco | Demoted to reserve roster |   |   | Before |
| 8/29/1969 | NYN | Martinez,J | Demoted to reserve roster |   |   | Before |
| 8/29/1969 | SD | Donaldson | Demoted to reserve roster |   |   | Before |
| 9/1/1969 | Atl | Fiore | Demoted to reserve roster |   |   | Before |
| 9/1/1969 | SD | Kurtz | Signed |   |   | Before |
| 9/1/1969 | SD | Locke | Signed |   |   | Before |
| 9/1/1969 | SD | Nye | Demoted to reserve roster |   |   | Before |
| 9/1/1969 | SD | Womack,D | Demoted to reserve roster |   |   | Before |
| 9/1/1969 | StL | Lahoud | Demoted to reserve roster |   |   | Before |
| 9/3/1969 | Hou | Nolan | Promoted to active roster |   |   | Before |
| 9/3/1969 | SD | Moore | Promoted to active roster |   |   | Before |
| 9/3/1969 | SD | Nye | Promoted to active roster |   |   | Before |
| 9/3/1969 | SD | Sisk | Promoted to active roster |   |   | Before |
| 9/5/1969 | LAN | Lachemann | Promoted to active roster |   |   | Before |
| 9/5/1969 | NYN | Foster | Promoted to active roster |   |   | Before |
| 9/5/1969 | NYN | Severinsen | Promoted to active roster |   |   | Before |
| 9/5/1969 | SD | Decker | Promoted to active roster |   |   | Before |
| 9/5/1969 | SD | Hedlund | Promoted to active roster |   |   | Before |
| 9/5/1969 | SD | Hilgendorf | Promoted to active roster |   |   | Before |
| 9/5/1969 | SD | Moeller | Promoted to active roster |   |   | Before |
| 9/5/1969 | SD | Womack,D | Promoted to active roster |   |   | Before |
| 9/5/1969 | SF | Cleveland | Promoted to active roster |   |   | Before |
| 9/5/1969 | StL | Hamilton | Demoted to reserve roster |   |   | Before |
| 9/5/1969 | StL | Hamilton | Promoted to active roster |   |   | Before |
| 9/5/1969 | StL | Ryan | Promoted to active roster |   |   | Before |
| 9/8/1969 | Atl | Carty | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | ChN | Reid | Signed |   |   | Before |
| 9/8/1969 | Cin | Jeter | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | Cin | Lee,B | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | Cin | Morehead | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | Cin | Queen | Promoted to active roster |   |   | Before |
| 9/8/1969 | Cin | Spinks | Signed |   |   | Before |
| 9/8/1969 | Cin | Spinks | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | Hou | Harrelson,B | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | LAN | Briggs | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | SD | Barton | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | SD | Decker | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | SD | Hilgendorf | Demoted to reserve roster |   |   | Before |
| 9/8/1969 | SD | Smith,W | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Atl | Spangler | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Cin | Jeter | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Cin | Lee,B | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Cin | Morehead | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Cin | Queen | Promoted to active roster |   |   | Before |
| 9/10/1969 | Cin | Spinks | Signed |   |   | Before |
| 9/10/1969 | NYN | Kranepool | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Pit | Higgins | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | Pit | Solaita | Signed |   |   | Before |
| 9/10/1969 | SD | Billings | Signed |   |   | Before |
| 9/10/1969 | SD | Campbell | Signed |   |   | Before |
| 9/10/1969 | SD | Marshall,D | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | SD | Moeller | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | SD | Ritchie | Demoted to reserve roster |   |   | Before |
| 9/10/1969 | SF | Bailey | Demoted to reserve roster |   |   | Before |
| 9/12/1969 | LAN | Lachemann | Demoted to reserve roster |   |   | Before |
| 9/12/1969 | Mon | Jones,M | Demoted to reserve roster |   |   | Before |
| 9/12/1969 | NYN | May,C | Demoted to reserve roster |   |   | Before |
| 9/12/1969 | SD | Womack,D | Demoted to reserve roster |   |   | Before |
| 9/12/1969 | StL | Woods,R | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | ChN | Hiatt | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | Mon | Beauchamp | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | Phi | Tartabull | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | Pit | Ranew | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | SD | Coggins | Signed |   |   | Before |
| 9/15/1969 | SD | Gamble | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | SD | Hedlund | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | SD | Moore | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | SD | Simmons | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | SD | Stewart | Demoted to reserve roster |   |   | Before |
| 9/15/1969 | StL | Allen,B | Demoted to reserve roster |   |   | Before |
| 9/17/1969 | ChN | Robertson,R | Demoted to reserve roster |   |   | Before |
| 9/17/1969 | Cin | Campisi | Signed |   |   | Before |
| 9/17/1969 | Hou | Jones,C | Demoted to reserve roster |   |   | Before |
| 9/17/1969 | LAN | Mikkelsen | Demoted to reserve roster |   |   | Before |
| 9/17/1969 | Phi | Allen,D | Demoted to reserve roster |   |   | Before |
| 9/17/1969 | Pit | Corrales | Demoted to reserve roster |   |   | Before |
| 9/17/1969 | SD | Sisk | Demoted to reserve roster |   |   | Before |
| 9/19/1969 | Atl | James | Signed |   |   | Before |
| 9/19/1969 | ChN | Grabarkewitz | Demoted to reserve roster |   |   | Before |
| 9/19/1969 | Mon | Howser | Demoted to reserve roster |   |   | Before |
| 9/19/1969 | NYN | DiLauro | Demoted to reserve roster |   |   | Before |
| 9/19/1969 | SD | Nye | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | ChN | Colborn | Promoted to active roster |   |   | Before |
| 9/22/1969 | ChN | Lee | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Cin | Brooks | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Cin | Queen | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | LAN | Geishert | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | LAN | Russell | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Mon | Aaron,T | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Mon | Carlos | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Mon | Gladding | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Mon | Taylor | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | Pit | Michael | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | SD | Bryant,D | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | SD | Gutierrez,C | Signed |   |   | Before |
| 9/22/1969 | SD | Quilici | Demoted to reserve roster |   |   | Before |
| 9/22/1969 | SD | Tischinski | Signed |   |   | Before |
| 9/24/1969 | Phi | Allen,D | Promoted to active roster |   |   | Before |
| 9/24/1969 | Phi | Shamsky | Promoted to active roster |   |   | Before |
| 9/26/1969 | Atl | Kolb | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | LAN | Jackson,S | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | Mon | Hendricks | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | Mon | Price | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | SD | Billings | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | SD | Campbell | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | SD | Davis,B | Signed |   |   | Before |
| 9/26/1969 | SD | Ferraro | Signed |   |   | Before |
| 9/26/1969 | StL | Stahl | Demoted to reserve roster |   |   | Before |
| 9/26/1969 | StL | Young | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | Atl | Burda | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | Atl | Joseph | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | ChN | Jarvis,R | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | Cin | Spinks | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | Hou | Nolan | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | LAN | Didier | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | Mon | Cash,D | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | Mon | Jorgensen | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | NYN | Foster | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | SD | Johnson | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | StL | Rodriguez,E | Demoted to reserve roster |   |   | Before |
| 9/30/1969 | StL | Rodriguez,E | Promoted to active roster |   |   | Before |