| Date Filed | Type | Description |
| 08/11/2023 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals: |
| 12/30/2022 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals: |
| 01/15/2021 |
SC 13G
| DF DENT & CO INC reports a 4.9% stake in PROS Holdings, Inc. |
| 07/02/2020 |
SC 13G/A
| DF DENT & CO INC reports a 4.9% stake in BLACKLINE, INC. |
| 11/08/2019 |
SC 13G/A
| DF DENT & CO INC reports a 5% stake in BROOKS AUTOMATION, INC. |
| 09/23/2019 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for Brooks Automation, Inc. |
| 01/11/2019 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for BLACKLINE, INC. |
| 01/11/2019 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for BLACKLINE, INC. |
| 05/10/2018 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for WAGEWORKS, INC. |
| 01/08/2018 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals: |
| 09/16/2016 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for WAGEWORKS, INC. |
| 09/02/2016 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for PROS Holdings, Inc. |
| 09/02/2016 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for ENVESTNET, INC. |
| 05/16/2016 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 10/30/2013 |
SC 13G/A
| National American University Holdings, Inc. has filed a Schedule 13D for National American University Holdings, Inc. |
| 07/19/2013 |
SC 13G
| INNERWORKINGS INC has filed a Schedule 13D for INNERWORKINGS INC |
| 05/03/2013 |
SC 13G
| INNERWORKINGS INC has filed a Schedule 13D for INNERWORKINGS INC |
| 03/29/2013 |
SC 13G
| WAGEWORKS, INC. has filed a Schedule 13D for WAGEWORKS, INC. |
| 01/22/2013 |
SC 13G/A
| National American University Holdings, Inc. has filed a Schedule 13D for National American University Holdings, Inc. |
| 06/06/2012 |
SC 13G/A
| DealerTrack Holdings, Inc. has filed a Schedule 13D for DealerTrack Holdings, Inc. |
| 02/22/2012 |
SC 13G/A
| DealerTrack Holdings, Inc. has filed a Schedule 13D for DealerTrack Holdings, Inc. |
| 02/22/2012 |
SC 13G/A
| National American University Holdings, Inc. has filed a Schedule 13D for National American University Holdings, Inc. |
| 01/12/2012 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 10/18/2011 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 08/08/2011 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 04/21/2011 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 04/21/2011 |
SC 13G/A
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals [amend] |
| 04/01/2011 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals |
| 04/01/2011 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for DealerTrack Holdings, Inc. |
| 04/01/2011 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for DealerTrack Holdings, Inc. |
| 01/26/2011 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for National American University Holdings, Inc. |
| 08/16/2010 |
SC 13G
| DF DENT & CO INC has filed a Schedule 13D for AMERICAN PUBLIC EDUCATION INC |
| 03/05/2010 |
SC 13G/A
| DF DENT & CO INC has filed a Schedule 13D for K TRON INTERNATIONAL INC |
| 02/19/2010 |
SC 13G/A
| DF DENT & CO INC has filed a Schedule 13D for K TRON INTERNATIONAL INC |
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