| 2017-02-17 | TransCanada PipeLine USA Ltd.TRANSCANADA PIPELINES LTDTRANSCANADA CORPColumbia Pipeline Group, Inc. | | Buy | Common units (limited partner interests) | 53843466.0 | 53,843,466 | $0.0 | A |
| 2017-02-17 | TransCanada PipeLine USA Ltd.TRANSCANADA PIPELINES LTDTRANSCANADA CORPColumbia Pipeline Group, Inc. | | Buy | Subordinated units (limited partner interests) | 46811398.0 | 46,811,398 | $0.0 | P |
| 2017-02-17 | TransCanada PipeLine USA Ltd.TRANSCANADA PIPELINES LTDTRANSCANADA CORPColumbia Pipeline Group, Inc. | | Buy | Common units (limited partner interests) | 1.0 | 53,843,466 | $0.0 | A |
| 2016-05-10 | HEEG PEGGY A | | Buy | Common Units (limited Partner Interests) | 6488.0 | 8,200 | $0.0 | A |
| 2016-05-10 | FINLEY G STEPHEN | | Buy | Common Units | 6488.0 | 25,531 | $0.0 | A |
| 2016-05-10 | Hofmann Thomas W | | Buy | Common Units (limited Partner Interests) | 6488.0 | 16,092 | $0.0 | A |
| 2016-01-29 | HEEG PEGGY A | | Buy | Common Units (limited Partner Interests) | 1692.0 | 1,692 | $0.0 | A |
| 2015-05-12 | FINLEY G STEPHEN | | Buy | Common Units | 3365.0 | 18,923 | $26.7 | A |
| 2015-05-12 | Hofmann Thomas W | | Buy | Common Units (limited Partner Interests) | 3365.0 | 9,484 | $26.7 | A |
| 2015-03-13 | FINLEY G STEPHEN | | Buy | Common units | 558.0 | 15,558 | $0.0 | A |
| 2015-02-11 | KETTERING GLEN L | | Buy | Common units (limited partner interests) | 1300.0 | 1,300 | $23.0 | P |
| 2015-02-11 | Hofmann Thomas W | | Buy | Common units (limited partner interests) | 1119.0 | 1,119 | $0.0 | A |
| 2015-02-11 | Hofmann Thomas W | | Buy | Common units (limited partner interests) | 5000.0 | 6,119 | $23.0 | P |
| 2015-02-11 | Smith Robert Edgar | | Buy | Common units (limited partner interests) | 6100.0 | 6,100 | $23.0 | P |
| 2015-02-11 | Chapman Stanley G III | | Buy | Common units (limited partner interests) | 5000.0 | 5,000 | $23.0 | P |
| 2015-02-11 | COLUMBIA ENERGY GROUP | | Buy | Subordinated units (limited partner interests) | 46811398.0 | 46,811,398 | $0.0 | J |
| 2015-02-11 | SKAGGS ROBERT C JR | | Buy | Common units (limited partner interests) | 37500.0 | 37,500 | $23.0 | P |
| 2015-02-11 | SMITH STEPHEN P | | Buy | Common units (limited partner interests) | 37500.0 | 37,500 | $23.0 | P |