|                          |
|--------------------------|
|                          |  |  |
| Delaware                 |   | 52-0845774 |
| (State of Incorporation) |   | (I.R.S. Employer Identification No.) |

|                                                    |
|----------------------------------------------------|
|                                                    |  |  |
| 70 Corporate Center                                |   |   |
| 11000 Broken Land Parkway, Suite 200, Columbia, MD |   | 21044 |
| (Address of principal executive offices)           |   | (Zip Code) |

|                              |
|------------------------------|
|                              |  |  |
| Title of Each Class          | Trading Symbol(s) | Name of each exchange on which registered: |
| Common Stock, $.01 par value | GPX | New York Stock Exchange, Inc. |

|                                           |
|-------------------------------------------|
|                                           |  |  |  |  |
| Large accelerated filer   ̈ | Accelerated filer   x | Non-accelerated filer   ̈ | Smaller reporting company  ̈ | Emerging growth company  ̈ |

|                                        |
|----------------------------------------|
|                                        |  |  |
| Class                                  |   | Outstanding |
| Common Stock, par value $.01 per share |   | 17,080,664 shares |

----

|               |
|---------------|
|               |  |  |
| PART III      |   |   |
|          |   |   |
| Item 10.      | Directors, Executive Officers and Corporate Governance | 1 |
|          |   |   |
| Item 11.      | Executive Compensation | 5 |
|          |   |   |
| Item 12.      | Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters | 22 |
|          |   |   |
| Item 13.      | Certain Relationships and Related Transactions, and Director Independence | 24 |
|          |   |   |
| Item 14.      | Principal Accounting Fees and Services | 25 |
|          |   |   |
| PART IV       |   |   |
|          |   |   |
| Item 15.      | Exhibits and Financial Statement Schedules | 26 |
|          |   |   |
| Signatures    | 27 |
|          |   |   |
| Exhibit Index | 28 |

----

|                                                    |
|----------------------------------------------------|
|                                                    |  |  |  |  |
| Name                                               |   | Age |   | Position |
| Scott N. Greenberg (1), (5)                        |   | 63 |   | Chairman of the Board and Chief Executive Officer |
| Samuel D. Robinson (1), (2), ( 3), (4)             |   | 46 |   | Lead Independent Director |
| Tamar Elkeles (2), (5)                             |   | 51 |   | Director |
| Marshall S. Geller (1), (2), (3), (4)         |   | 81 |   | Director |
| Steven E. Koonin (5)                               |   | 68 |   | Director |
| Jacques Manardo                                    |   | 73 |   | Director |
| Richard C. Pfenniger, Jr. (3),  (4) |   | 64 |   | Director |
| Adam H. Stedham                                    |   | 51 |   | President |
| Russell L. Becker                                  |   | 45 |   | Executive Vice President & Chief Sales Officer |
| Patricia R. Begley                                 |   | 63 |   | Executive Vice President |
| Kenneth L. Crawford                                |   | 61 |   | Executive Vice President, General Counsel & Secretary |
| Michael R. Dugan                                   |   | 52 |   | Executive Vice President & Chief Financial Officer |
| Donald R. Duquette                                 |   | 66 |   | Executive Vice President |

|     |                                    |
|-----|------------------------------------|
| (1) | Member of the Executive Committee. |
|     |                                       |
|-----|---------------------------------------|
| (2) | Member of the Compensation Committee. |
|     |                                                            |
|-----|------------------------------------------------------------|
| (3) | Member of the Nominating / Corporate Governance Committee. |
|     |                                |
|-----|--------------------------------|
| (4) | Member of the Audit Committee. |
|     |                                          |
|-----|------------------------------------------|
| (5) | Member of Government Security Committee. |

----

----

----

----

|         |                                                                                                                                                                                                                                                                                                            |
|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Develop guidelines and review and approve corporate goals relevant to the compensation of the Chief Executive Officer, evaluate the Chief Executive Officer’s performance in light of these goals and objectives, and set the Chief Executive Officer’s compensation based on this evaluation; |
|         |                                                                                                                                               |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------|
| • | Produce an annual report on executive compensation for inclusion in our proxy statement, in accordance with applicable rules and regulations; |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Develop guidelines and review the performance of executive officers of the Company, make recommendations to the Board with respect to the compensation of our executive officers (other than the Chief Executive Officer) and incentive-compensation plans and equity-based plans, and establish criteria for the granting of stock-based compensation to our officers and other employees, and review and approve the granting of stock-based compensation in accordance with such criteria; |
|         |                                                                                                                                                                                                     |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Review director compensation levels and practices, and recommend from time to time changes in such compensation levels and practices to the Board, with equity ownership in the Company encouraged; |
|         |                                                                                                                                                          |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Annually review and reassess the adequacy of the charter of the Compensation Committee and recommend any proposed changes to the Board for approval; and |
|         |                                                                                                                                                                                                                          |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Make recommendations to the Board with respect to (a) committee member qualifications, (b) committee member appointments and removals, (c) committee structure and operations, and (d) committee reporting to the Board. |
|         |                                                       |
|---------|-------------------------------------------------------|
| • | Attract and retain talented and dedicated executives; |
|         |                                                                                                                    |
|---------|--------------------------------------------------------------------------------------------------------------------|
| • | Motivate and reward executives whose knowledge, skills, potential and performance are critical to our success; and |

----

|         |                                                                                                                                                                                                  |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Align the interests of our executive officers and stockholders by motivating executive officers to increase stockholder value and rewarding executive officers when stockholder value increases. |

----

|                                                                                |
|--------------------------------------------------------------------------------|
|                                                                                |  |  |
| Named Executive Officer                                                        |   | Annual Salary Effective April 1, 2020 |
| Scott N. Greenberg, Chief Executive Officer                                    |   | $476,000 |
| Michael R. Dugan, Chief Financial Officer                                      |   | $297,500 |
| Adam H. Stedham, President                                                     |   | $425,000 |
| Donald R. Duquette, Executive Vice President                                   |   | $297,500 |
| Kenneth L. Crawford, Executive Vice President, General Counsel & Secretary |   | $280,500 |

----

|                      |
|----------------------|
|                      |  |  |  |  |  |  |  |  |  |  |
|                 |   | 2019 Bonus Targets by Performance Goal |
|                 |   | Revenue Targets (40% of Bonus Opportunity) |   | Actual Bonus % Earned for Revenue Measure (40% of Bonus Opportunity) |   | Adjusted EBITDA Targets (60% of Bonus Opportunity) |   | Actual Bonus % Earned for Adjusted EBITDA Target (60% of Bonus Opportunity) |   | Total Bonus Earned as a % of Salary (1) |
|                 |   |   |   |   |   |   |   |   |   |   |
| Minimum Level (20%)  |   | $569.6 million |   | 20% |   | $43.6 million |   | —% |   | 6% |
| Medium Level (60%)   |   | $581.3 million |   | —% |   | $47.5 million |   | —% |   | —% |
| Target Level (100%)  |   | $593.3 million |   | —% |   | $51.3 million |   | —% |   | —% |
| Maximum Level (150%) |   | $611.0 million |   | —% |   | $56.5 million |   | —% |   | —% |
| Total                |   |   |   |   |   |   |   |   |   | 6% |
|                 |   |   |   |   |   |   |   |   |   |   |

|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | Total bonus earned as a percentage of salary is calculated as follows: total bonus opportunity of 75% of salary, multiplied by 40% of bonus opportunity attributable to the revenue measure, multiplied by 20% achievement of the revenue measure (since minimum Adjusted EBITDA target was not met, the achievement of the revenue measure was limited to the Minimum Level). Based on this achievement level, the following bonus payments were paid to the participating Named Executive Officers in March 2020 for the year ended December 31, 2019: $21,000 to Mr. Dugan, $30,000 to Mr. Stedham, $21,000 to Mr. Duquette and $17,400 to Mr. Crawford. |

----

|                        |
|------------------------|
|                        |  |  |  |  |
| Equity Value per Share |
| Metric                 |   | % Vesting |   | 3 Year CAGR of Share Value |
| <$15.28             |   | 0% |   | 0% |
| 15.28-19.24            |   | 10% |   | 0% |
| 19.25                  |   | 25% |   | 8% |
| 20.34                  |   | 50% |   | 10% |
| 21.47                  |   | 75% |   | 12% |
| 23.24                  |   | 100% |   | 15% |
| 25.11                  |   | 125% |   | 18% |

----

|                                                                                |
|--------------------------------------------------------------------------------|
|                                                                                |  |  |
| Named Executive Officer                                                        |   | Value of RSU Grant |
| Scott N. Greenberg, Chief Executive Officer                                    |   | $123,760 |
| Michael R. Dugan, Chief Financial Officer                                      |   | $77,350 |
| Adam H. Stedham, President                                                     |   | $110,500 |
| Donald R. Duquette, Executive Vice President                                   |   | $77,350 |
| Kenneth L. Crawford, Executive Vice President, General Counsel & Secretary |   | $72,930 |

|         |                                                                                                                                                                                                                                                                                                             |
|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Retirement Savings Plan: We maintain a defined contribution 401(k) plan in which all eligible employees may participate. The company may make matching contributions under the 401(k) Plan at its discretion equal to a uniform percentage of the first 7% of base compensation for eligible employees. |
|         |                                                                                                                                                                                                                                                            |
|---------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Health and Welfare Benefits: All full-time employees, including our Named Executive Officers, may participate in our health and welfare benefit programs, including medical, dental and vision care coverage, disability insurance and life insurance. |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Life Insurance Premiums: Life insurance policies, in excess of the standard life insurance plans offered to full-time employees, are offered to the Named Executive Officers. During 2019, the executive life insurance policies provided coverage up to five times the executive’s annual base salary. The premiums are fully paid by us. A policy may, at the executive’s election, be transferred to the executive upon termination of employment. |
|         |                                                                                                                                                                                                                                                   |
|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Automobile Allowances: During 2019, each of the Named Executive Officers either used a vehicle leased or owned by us for both business and personal use or received a monthly car allowance in lieu of using a vehicle leased or owned by us. |

----

|                                                                              |
|------------------------------------------------------------------------------|
|                                                                              |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Name andprincipalposition                                               |   | Year |   | Salary($) |   | Bonus($) |   | StockAwards($) (1) |   | OptionAwards($) |   | Non-EquityIncentive  PlanCompensation($) |   |   |   | All OtherCompensation($) (2) |   | Total ($) |
| Scott N. GreenbergChief Executive Officer                                    |   | 2019 |   | 560,000 |  |   | — |  |   | 425,633 |  |   | — |  |   | — |  |   | (3) |   | 31,870 |  |   | 1,017,503 |  |
|                                                                         | 2018 |   | 560,000 |  |   | — |  |   | 546,003 |  |   | — |  |   | — |  |   | (3) |   | 31,025 |  |   | 1,137,028 |  |
|                                                                         | 2017 |   | 560,000 |  |   | — |  |   | 554,285 |  |   | — |  |   | — |  |   | (3) |   | 29,278 |  |   | 1,143,563 |  |
|                                                                         |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Michael R. DuganExecutive Vice President & Chief Financial Officer       |   | 2019 |   | 321,875 |  |   | — |  |   | 163,702 |  |   | — |  |   | 21,000 |  |   | (4) |   | 18,828 |  |   | 525,405 |  |
|                                                                         | 2018 |   | 275,000 |  |   | — |  |   | 164,998 |  |   | — |  |   | — |  |   | (4) |   | 18,105 |  |   | 458,103 |  |
|                                                                         | 2017 |   | 212,708 |  |   | — |  |   | 45,621 |  |   | — |  |   | — |  |   | (4) |   | 15,130 |  |   | 273,459 |  |
|                                                                         |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Adam H. StedhamPresident                                                     |   | 2019 |   | 462,500 |  |   | — |  |   | 321,568 |  |   | — |  |   | 30,000 |  |   | (4) |   | 20,716 |  |   | 834,784 |  |
|                                                                         | 2018 |   | 390,588 |  |   | — |  |   | 391,880 |  |   | — |  |   | — |  |   | (4) |   | 135,422 |  |   | 917,890 |  |
|                                                                         | 2017 |   | 237,500 |  |   | — |  |   | 78,991 |  |   | — |  |   | — |  |   | (4) |   | 13,100 |  |   | 329,591 |  |
|                                                                         |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Donald R. DuquetteExecutive Vice President                                   |   | 2019 |   | 350,000 |  |   | — |  |   | 163,702 |  |   | — |  |   | 21,000 |  |   | (4) |   | 40,509 |  |   | 575,211 |  |
|                                                                         | 2018 |   | 350,000 |  |   | — |  |   | 210,002 |  |   | — |  |   | — |  |   | (4) |   | 29,674 |  |   | 589,676 |  |
|                                                                         | 2017 |   | 350,000 |  |   | — |  |   | 204,833 |  |   | — |  |   | — |  |   | (4) |   | 29,836 |  |   | 584,669 |  |
|                                                                         |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Kenneth L. CrawfordExecutive Vice President, General Counsel & Secretary |   | 2019 |   | 315,000 |  |   | — |  |   | 154,354 |  |   | — |  |   | 17,400 |  |   | (4) |   | 27,856 |  |   | 514,610 |  |
|                                                                         | 2018 |   | 290,000 |  |   | — |  |   | 173,996 |  |   | — |  |   | — |  |   | (4) |   | 26,995 |  |   | 490,991 |  |
|                                                                         | 2017 |   | 290,000 |  |   | — |  |   | 113,142 |  |   | — |  |   | — |  |   | (4) |   | 22,554 |  |   | 425,696 |  |
|                                                                         |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |

|     |                                                                                                                                                                                                                                                                                                                                                                                           |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | Reflects the grant date fair value for financial statement reporting for awards of restricted stock units or stock options in the year they were granted. For assumptions used in computing the fair value of stock-based compensation awards, see Note 12 to the Consolidated Financial Statements in Item 8 of our Annual Report on Form 10-K filed with the SEC on March 10, 2020. |
|     |                                                                                                                                                                                                                 |
|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | All other compensation includes matching contributions under our Retirement Savings Plan, automobile lease payments and/or allowances, and life insurance premiums. A breakdown of these amounts is as follows: |

----

|                     |
|---------------------|
|                     |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Name                |   | Year |   | Company MatchingContributions to 401(k) Plan ($) |   | AutomobilePayments orAllowance ($) |   | Life InsurancePremiums ($) |   | Other (5) |   | Total ($) |
| Scott N. Greenberg  |   | 2019 |   | 7,600 |  |   | 11,400 |  |   | 12,870 |  |   | — |  |   | 31,870 |  |
|                | 2018 |   | 7,400 |  |   | 10,755 |  |   | 12,870 |  |   | — |  |   | 31,025 |  |
|                | 2017 |   | 7,200 |  |   | 9,208 |  |   | 12,870 |  |   | — |  |   | 29,278 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |
| Michael R. Dugan    |   | 2019 |   | 5,958 |  |   | 8,730 |  |   | 4,140 |  |   | — |  |   | 18,828 |  |
|                | 2018 |   | 5,775 |  |   | 8,673 |  |   | 3,657 |  |   | — |  |   | 18,105 |  |
|                | 2017 |   | 5,956 |  |   | 7,350 |  |   | 1,824 |  |   | — |  |   | 15,130 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |
| Adam H. Stedham     |   | 2019 |   | 6,490 |  |   | 9,806 |  |   | 4,420 |  |   | — |  |   | 20,716 |  |
|                | 2018 |   | 5,804 |  |   | 9,823 |  |   | 2,925 |  |   | 116,870 |  |   | 135,422 |  |
|                | 2017 |   | 5,625 |  |   | 7,272 |  |   | 203 |  |   | — |  |   | 13,100 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |
| Donald R. Duquette  |   | 2019 |   | 7,840 |  |   | 8,400 |  |   | 24,269 |  |   | — |  |   | 40,509 |  |
|                | 2018 |   | 7,517 |  |   | 9,287 |  |   | 12,870 |  |   | — |  |   | 29,674 |  |
|                | 2017 |   | 7,200 |  |   | 9,766 |  |   | 12,870 |  |   | — |  |   | 29,836 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |
| Kenneth L. Crawford |   | 2019 |   | 6,670 |  |   | 9,174 |  |   | 12,012 |  |   | — |  |   | 27,856 |  |
|                | 2018 |   | 6,482 |  |   | 9,425 |  |   | 11,088 |  |   | — |  |   | 26,995 |  |
|                | 2017 |   | 6,330 |  |   | 9,000 |  |   | 7,224 |  |   | — |  |   | 22,554 |  |

|     |                                                                                                           |
|-----|-----------------------------------------------------------------------------------------------------------|
| (3) | Bonus pursuant to Mr. Greenberg’s employment agreement. See Compensation Discussion & Analysis. |
|     |                                                                                                              |
|-----|--------------------------------------------------------------------------------------------------------------|
| (4) | Bonus pursuant to the Company’s Short-term Incentive Plan. See Compensation Discussion & Analysis. |
|     |                                                                                                                                                                         |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (5) | For 2018, includes $116,870 paid to Mr. Stedham for relocation and moving expenses in connection with his relocation to the Company's Columbia, MD headquarters office. |

----

|                     |
|---------------------|
|                     |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|                |   |   |   | Estimated Possible Payouts Under Non-Equity Incentive Plan Awards (1) |   | Estimated Future Payouts UnderEquity Incentive Plan Awards (2) |   | All OtherStockAwards:Number ofShares of Stock or Units (#) (3) |   | Grant date fair value of stock and option awards ($) (4) |
| Name                |   | GrantDate |   | Threshold($) |   | Target  ($) |   | Maximum($) |   | Threshold(#) |   | Target  (#) |   | Maximum(#) |
| Scott N. Greenberg  |   | n/a |   | — |  |   | — |  |   | 280,000 |  |   |   |   |   |   |   |   |   |   |   |
|                | 5/15/2019 |   |   |   |   |   |   |   | 5,528 |  |   | 55,277 |  |   | 69,096 |  |   |   |   | 425,633 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Michael R. Dugan    |   | n/a |   | 52,500 |  |   | 262,500 |  |   | 393,750 |  |   |   |   |   |   |   |   |   |   |   |
|                | 5/15/2019 |   |   |   |   |   |   |   | 2,126 |  |   | 21,260 |  |   | 26,575 |  |   |   |   | 163,702 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Adam H. Stedham     |   | n/a |   | 75,000 |  |   | 375,000 |  |   | 562,500 |  |   |   |   |   |   |   |   |   |   |   |
|                | 5/15/2019 |   |   |   |   |   |   |   | 4,176 |  |   | 41,762 |  |   | 52,203 |  |   |   |   | 321,568 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Donald R. Duquette  |   | n/a |   | 52,500 |  |   | 262,500 |  |   | 393,750 |  |   |   |   |   |   |   |   |   |   |   |
|                | 5/15/2019 |   |   |   |   |   |   |   | 2,126 |  |   | 21,260 |  |   | 26,575 |  |   |   |   | 163,702 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Kenneth L. Crawford |   | n/a |   | 43,500 |  |   | 217,500 |  |   | 326,250 |  |   |   |   |   |   |   |   |   |   |   |
|                | 5/15/2019 |   |   |   |   |   |   |   | 2,005 |  |   | 20,046 |  |   | 25,058 |  |   |   |   | 154,354 |  |
|                |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |

|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | For Mr. Greenberg, the maximum potential bonus is capped at 50% of his base salary. For the other Named Executive Officers, the target bonus opportunity is 75% of the executive's annual base salary. The actual bonuses earned were $21,000 by Mr. Dugan, $30,000 by Mr. Stedham, $21,000 by Mr. Duquette and $17,400 by Mr. Crawford and are included in the Non-Equity Incentive Plan Compensation column of the Summary Compensation Table.  No bonuses were earned by Mr. Greenberg in respect of the year ended December 31, 2019 pursuant to the terms of the employment agreement, as applicable (see Compensation Discussion & Analysis). |
|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | The amounts reported in these columns show the threshold, target and maximum award opportunities for the performance-based restricted stock units granted to the Named Executive Officers. These restricted stock units vest on December 31, 2021, subject to the executive's continued employment with the Company, if and only to the extent that specific performance goals with respect to the Company's Equity Value per Share are met during a three-year performance period. The threshold amounts represent the minimum number of shares payable for a certain level of performance, the target amount represents 100% payout and the maximum amount represents 125% of the target payout possible under the plan. |
|     |                                                                                                                                                                                                                                                                                                                       |
|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (3) | The amounts reported in this column represent the time-based restricted stock units granted to the Named Executive Officers. These restricted stock units vest subject to the executive's continued employment with the Company over a future period as specified in the executive's restricted stock unit agreement. |
|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (4) | The amounts reported in this column represent the grant date fair value of each equity award computed for financial statement reporting. In the case of the performance-based restricted stock units, the amounts reported are based upon the probable outcome of the applicable performance-based vesting conditions at the time of grant at the target payout level. Assumptions made in computing the grant date fair value of these awards are described in Note 12 to the Consolidated Financial Statements in Item 8 of our Annual Report on Form 10-K filed with the SEC on March 10, 2020. |

----

|                     |
|---------------------|
|                     |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|                |   | Option Awards |   |   |   | Stock Awards |
| Name                |   | Number ofsecuritiesunderlyingunexercisedoptions (#)exercisable |   | Number ofsecuritiesunderlyingunexercisedoptions (#)unexercisable |   | Optionexerciseprice ($) |   | Optionexpirationdate |   | Numberof sharesor units ofstock thathave notvested (#) |   | Marketvalue ofshares orunits ofstock thathave notvested ($)(1) | Equity incentive plan awards: number of unearned shares, units or other rights that have not vested (#) (2) | Equity incentive plan awards: market or payout value of unearned shares, units or other rights that have not vested ($) (1) |
| Scott N. Greenberg  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  | 120,711 |  | 1,597,007 |  |
| Michael R. Dugan    |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  | 32,871 |  | 434,883 |  |
| Adam H. Stedham     |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  | 68,144 |  | 901,545 |  |
| Donald R. Duquette  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  | 42,002 |  | 555,686 |  |
| Kenneth L. Crawford |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  |   | — |  | 34,932 |  | 462,150 |  |

|     |                                                                                                                                                                                |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | The amounts in these columns are calculated by multiplying the number of shares by the closing market price of our Common Stock on December 31, 2019 of $13.23 per share. |
|     |                                                                                                                                                                                                                                                                                                                                                                                                                     |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | Represents the maximum number of shares that can be earned pursuant to the grant of performance-based restricted stock units.  These restricted stock units vest, subject to the executive's continued employment with the Company, if and only to the extent that specific performance goals with respect to certain financial measures established for each grant are met during a three-year performance period. |

----

|                     |
|---------------------|
|                     |  |  |  |  |  |  |  |  |  |  |  |  |
|                |   | Option Awards |   | Stock Awards |
| Name                |   | Number  of sharesacquired onexercise (#) |   | Value  realized onexercise ($) |   | Number  of sharesacquired  onvesting  (#) |   | Value  realized onvesting  ($) (1) |
| Scott N. Greenberg  |   | — |  |   | — |  |   | — |  |   | — |  |
| Michael R. Dugan    |   | — |  |   | — |  |   | 618 |  |   | 8,176 |  |
| Adam H. Stedham     |   | — |  |   | — |  |   | 1,070 |  |   | 14,156 |  |
| Donald R. Duquette  |   | — |  |   | — |  |   | 2,775 |  |   | 36,713 |  |
| Kenneth L. Crawford |   | — |  |   | — |  |   | 1,533 |  |   | 20,282 |  |

|     |                                                                                                                                                             |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | Represents stock units which vested during 2019. Value realized upon vesting is based on the closing market price of our Common Stock on each vesting date. |
|         |                                                                                                                                                                                                                                                                                     |
|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ◦ | Termination by the Company for Cause – If we terminate the employment of one of the named executives for “cause,” as defined below, such executive would be entitled to unpaid base salary and continuation of benefits through the date of termination only. |

----

|         |                                                                                                                                                        |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Willful and continued failure to substantially perform his duties or obligations under the employment agreement (after notice and failure to cure); or |
|         |                                                                                |
|---------|--------------------------------------------------------------------------------|
| • | Willful engaging in misconduct which is materially monetarily injurious to us. |
|         |                                                                                                                                                                                                                                                                                                                                                                                |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Be convicted, plead guilty, or enter a plea of nolo contendere to a felony or a crime involving moral turpitude (for Messrs. Duquette and Crawford); be convicted, plead guilty, or enter a plea of nolo contendere to a felony or a crime which could reasonably be expected to have a significant detrimental impact on the Company’s reputation (for Mr. Stedham); or |
|         |                                                                                                                                                                                                                                                                                                     |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Be the subject of a civil or administrative action for an illegal act which could reasonably be expected to have a significant detrimental impact on the Company’s reputation and not deny the act or be found by the relevant authority to have committed the act (for Mr. Stedham only); or |
|         |                                                                                 |
|---------|---------------------------------------------------------------------------------|
| • | Commit any act or omit to take any action in bad faith and to our detriment; or |
|         |                                                                                                                                                                                                                                                    |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Willfully and continually fail to perform his or her duties or obligations under any provision of the employment agreement in any material respect, and shall not correct such failure within ten days after receipt of written notice thereof; or |
|         |                                                                                                                                                                                  |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Fail to perform his or her duties or obligations pursuant to the non-compete and confidential information provisions of his or her employment agreement in any material respect. |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ◦ | Termination upon disability – We may terminate the employment of a Named Executive Officer in the event of such executive’s incapacity due to extended physical or mental illness. In the case of disability, the affected executive would be entitled to his or her unpaid base salary and continuation of benefits through the date of termination only. If Mr. Greenberg has been absent from his duties on a full-time basis for the entire period of six consecutive months due to physical or mental illness, we may terminate his employment thirty days after giving him notice of termination if he has not returned to the performance of his duties on a full-time basis within those thirty days. If Messrs. Stedham, Duquette or Crawford are unable to fully discharge his duties for a period of ninety consecutive days due to a serious health condition (as defined in the Family and Medical Leave Act of 1993) and after giving effect to any reasonable accommodation required by law, we may terminate his employment as of a date specified in a notice of termination given to such employee. |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ◦ | Termination upon death – In the event of death, each of the Named Executive Officers is entitled to his or her full salary through the date of death and we are required to pay his or her spouse or estate the following: for Mr. Greenberg – an amount equal to his full salary for one year after the date of death; and for Messrs. Duquette and Crawford  – his full salary through the end of the calendar month within which termination occurred plus his full salary for the following two calendar months, and for purposes of the vesting of any stock units outstanding and unvested as of the date of termination of his employment, he shall be deemed to have been employed through the remaining period under the employment agreement. |
|         |                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ◦ | Termination by the Company without cause or by the Executive for “good reason” or “just cause” – If we terminate a Named Executive Officer’s employment without cause or a Named Executive Officer terminates his or her employment for “good reason” or “cause,” as defined below, then the Named Executive Officer would be entitled to certain compensation discussed in detail below. |
|         |                                                                |
|---------|----------------------------------------------------------------|
| • | A change in control as defined in his employment agreement; or |
|         |                                                                           |
|---------|---------------------------------------------------------------------------|
| • | A management change in control as defined in his employment agreement; or |
|         |                                                                                                                                                                                                         |
|---------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | A failure by us to comply with any material provision of the employment agreement which has not been cured within ten days after notice of such noncompliance has been given to us by the executive; or |
|         |                                                                                                                                                                                        |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Any purported termination of the executive’s employment by us which is not effected pursuant to a notice of termination satisfying the requirements of the employment agreement. |

----

|         |                                                                                                                                                                                                                                                                                                                      |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Our imposition, without express written consent of the executive, of any significant change in his function, duties, or responsibilities that is not consistent with him being an executive, unless we rescind or modify such change within ten business days after receipt of written notice from the executive; or |
|         |                                                                                                                                                                                                                                                        |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Our failure to make any material payment, or provide any material benefit to the executive pursuant to the employment agreement, unless we correct any such deficiency within ten business days after receipt of written notice from the executive; or |
|         |                                                                                                                                                                |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Our breach of any other term of the employment agreement, unless we correct such failure or breach within thirty days after written notice from the executive. |
|         |                                                                                                                                            |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------|
| • | We reduce his base salary without his consent and fail to restore it to its previous level within 30 days after notice from the executive; |
|         |                                                                                                                                                                                                                                |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | We fail to make any material payment, or provide any material benefit to him pursuant to the employment agreement, unless we correct any such deficiency within ten business days after receipt of written notice from him; or |
|         |                                                                                                                                                  |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------|
| • | We breach any other term of the employment agreement, unless we correct such failure or breach within thirty days after written notice from him. |
|         |                                                                                                                                    |
|---------|------------------------------------------------------------------------------------------------------------------------------------|
| • | We change his title or job duties in any material respect which diminishes his position or damages his professional reputation; or |
|         |                                                                                                                                                                                                                                                                                      |
|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | We eliminate (and not replace with a comparable alternative), reduce, or fail to make any material payment without his consent with respect to restricted stock granted to him under our Long-Term Incentive Program and fail to restore it within 30 days after notice from him; or |
|         |                                                                                                                                                                                                                                                                 |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | We relocate our headquarters more than 30 miles for Columbia, Maryland despite his written objection and we fail to provide reasonable accommodations which would enable him to maintain a work/life balance comparable to what exists prior to the relocation. |

----

|                                                    |
|----------------------------------------------------|
|                                                    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Name / Element of Compensation |   | Terminationdue to Death |   |   |   | TerminationWithout  Causeor for GoodReason,ExcludingChange inControl |   |   |   | Terminationdue to Changein Control |   |   |   | Termination dueto  ManagementChange inControl |   |   |
| Scott N. Greenberg                                 |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Salary                                             |   | $ | 560,000 |  |   | (1) |   | $ | — |  |   |   |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Severance                                          |   | — |  |   |   |   | 1,680,000 |  |   | (2) |   | 1,680,000 |  |   | (2) |   | 1,120,000 |  |   | (3) |
| Benefits continuation                              |   | — |  |   |   |   | 39,209 |  |   | (4) |   | 39,209 |  |   | (4) |   | 26,140 |  |   | (5) |
| Total                                              |   | $ | 560,000 |  |   |   |   | $ | 1,719,209 |  |   |   |   | $ | 1,719,209 |  |   |   |   | $ | 1,146,140 |  |   |   |
| Michael R. Dugan                                   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Salary                                             |   | $ | — |  |   |   |   | $ | 175,000 |  |   | (6) |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Benefits continuation                              |   | — |  |   |   |   | 6,535 |  |   | (6) |   | — |  |   |   |   | — |  |   |   |
| Total                                              |   | $ | — |  |   |   |   | $ | 181,535 |  |   |   |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Adam H. Stedham                                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Salary                                             |   | $ | — |  |   |   |   | $ | 750,000 |  |   | (7) |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Benefits continuation                              |   | — |  |   |   |   | 19,605 |  |   | (8) |   | — |  |   |   |   | — |  |   |   |
| Total                                              |   | $ | — |  |   |   |   | $ | 769,605 |  |   |   |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Donald R. Duquette                                 |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Salary                                             |   | $ | 58,333 |  |   | (9) |   | $ | 350,000 |  |   | (1) |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Benefits continuation                              |   | — |  |   |   |   | 13,070 |  |   | (10) |   | — |  |   |   |   | — |  |   |   |
| Total                                              |   | $ | 58,333 |  |   |   |   | $ | 363,070 |  |   |   |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Kenneth L. Crawford                                |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Salary                                             |   | $ | 55,000 |  |   | (9) |   | $ | 330,000 |  |   | (1) |   | $ | — |  |   |   |   | $ | — |  |   |   |
| Benefits continuation                              |   | — |  |   |   |   | 13,070 |  |   | (10) |   | — |  |   |   |   | — |  |   |   |
| Total                                              |   | $ | 55,000 |  |   |   |   | $ | 343,070 |  |   |   |   | $ | — |  |   |   |   | $ | — |  |   |   |

|     |                                                                |
|-----|----------------------------------------------------------------|
| (1) | Represents one year of current salary as of December 31, 2019. |

----

|     |                                                                                                                                                                        |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | Represents severance payment pursuant to employment agreement which equals the average of his cash compensation for the last three calendar years multiplied by three. |
|     |                                                                                                                                                                      |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (3) | Represents severance payment pursuant to employment agreement which equals the average of his cash compensation for the last three calendar years multiplied by two. |
|     |                                                                                                                                         |
|-----|-----------------------------------------------------------------------------------------------------------------------------------------|
| (4) | Represents an estimate of the incremental cost to the Company for benefits continuation for three years subsequent to termination date. |
|     |                                                                                                                                       |
|-----|---------------------------------------------------------------------------------------------------------------------------------------|
| (5) | Represents an estimate of the incremental cost to the Company for benefits continuation for two years subsequent to termination date. |
|     |                                                                                                                                                                        |
|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (6) | Represents six months of severance and continued benefits based on the Company's severance policy for terminations without cause typically offered to vice presidents. |
|     |                                                                       |
|-----|-----------------------------------------------------------------------|
| (7) | Represents eighteen months of current salary as of December 31, 2019. |
|     |                                                                                                                                                 |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------|
| (8) | Represents an estimate of the incremental cost to the Company for benefits continuation for eighteen months subsequent to the termination date. |
|     |                                                                                |
|-----|--------------------------------------------------------------------------------|
| (9) | Represents two full calendar months of current salary as of December 31, 2019. |
|      |                                                                                                                                          |
|------|------------------------------------------------------------------------------------------------------------------------------------------|
| (10) | Represents an estimate of the incremental cost to the Company for benefits continuation for one year subsequent to the termination date. |

----

|         |                             |
|---------|-----------------------------|
| • | Base annual fee of $45,000; |
|         |                                                                                                                                                                                                             |
|---------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Additional annual fee of $40,000 for serving as Chairman of the Board, excluding the Chief Executive Officer (beginning in 2019, our Lead Independent Director will also receive an annual fee of $40,000); |
|         |                                                                                                  |
|---------|--------------------------------------------------------------------------------------------------|
| • | Additional annual fee of $15,000 for serving on the Executive Committee, excluding the Chairman; |
|         |                                                                                  |
|---------|----------------------------------------------------------------------------------|
| • | Additional annual fee of $20,000 for serving as Chairman of the Audit Committee; |
|         |                                                                     |
|---------|---------------------------------------------------------------------|
| • | Additional annual fee of $8,000 for serving on the Audit Committee; |
|         |                                                                                        |
|---------|----------------------------------------------------------------------------------------|
| • | Additional annual fee of $7,000 for serving as Chairman of the Compensation Committee; |
|         |                                                                                                                                                          |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Additional annual fee of $5,000 for serving on the Compensation Committee,  Nominating/Corporate Governance Committee and Government Security Committee; |
|         |                                                                                                                                                                                                                                               |
|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Additional annual fee of $12,000 for serving as Chairman of the Nominating/Corporate Governance Committee (beginning in 2019, directors serving on this committee (other than the Chairman) will receive an additional annual fee of $5,000); |
|         |                                                                                                    |
|---------|----------------------------------------------------------------------------------------------------|
| • | Additional annual fee of $10,000 for serving as Chairman of the Government Security Committee; and |
|         |                                                                                                                                                                            |
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| • | Directors receive $11,250 per quarter of our common stock, with the number of shares calculated based on the closing price of our common stock at the end of the quarter). |

|                           |
|---------------------------|
|                           |  |  |  |  |  |  |  |  |  |  |  |  |
| Name                      |   | Fees earned or paidin cash ($) |   | Stock awards ($) |   | All othercompensation ($) |   | Total ($) |
| Tamar Elkeles             |   | 69,750 |  |   | 45,028 |  |   | — |  |   | 114,778 |  |
| Marshall S. Geller        |   | 64,875 |  |   | 82,522 |  |   | — |  |   | 147,397 |  |
| Steven E. Koonin          |   | 30,250 |  |   | 100,016 |  |   | — |  |   | 130,266 |  |
| Jacques Manardo           |   | 58,500 |  |   | 61,598 |  |   | 120,000 |  | (1) | 240,098 |  |
| Richard C. Pfenniger, Jr. |   | 95,750 |  |   | 45,028 |  |   | — |  |   | 140,778 |  |
| Samuel D. Robinson        |   | 124,000 |  |   | 45,028 |  |   | — |  |   | 169,028 |  |
| Miriam H. Strouse (2)     |   | 15,000 |  |   | — |  |   | — |  |   | 15,000 |  |

|     |                                                                                   |
|-----|-----------------------------------------------------------------------------------|
| (1) | Other compensation includes consulting fees for advisory services to the Company. |
|     |                                                                        |
|-----|------------------------------------------------------------------------|
| (2) | Miriam Strouse resigned from the Board of Directors on March 15, 2019. |

----

----

|                                                                                             |
|---------------------------------------------------------------------------------------------|
|                                                                                             |  |  |  |  |  |  |  |
| Name and Address of Beneficial Owner                                              |   | Amount andNature ofBeneficial Owner |   |   |   | PercentofClass |
| Sagard Capital Partners, L.P.280 Park Avenue, 3rd Floor WestNew York, NY 10017              |   | 3,639,367 shares |   | (1) |   | 21.2 | % |
| Cove Street Capital2101 E El Segundo Boulevard, Suite 302El Segundo, CA 90245               |   | 2,406,810 shares |   | (2) |   | 14.0 | % |
| Royce & Associates LP745 Fifth AvenueNew York, NY 10151                                 |   | 1,231,099 shares |   | (3) |   | 7.2 | % |
| Dimensional Fund Advisors LPPalisades West, Building One6300 Bee Cave Road Austin, TX 78746 |   | 1,224,131 shares |   | (4) |   | 7.1 | % |

|     |                                                                                                               |
|-----|---------------------------------------------------------------------------------------------------------------|
| (1) | Based on a Form 13F filed by Sagard Capital Partners Management Corporation with the SEC on November 6, 2019. |
|     |                                                                                     |
|-----|-------------------------------------------------------------------------------------|
| (2) | Based on a Form 13F filed by Cove Street Capital with the SEC on February 13, 2020. |
|     |                                                                                          |
|-----|------------------------------------------------------------------------------------------|
| (3) | Based on a Form 13F filed by Royce & Associates LP with the SEC on February 6, 2020. |
|     |                                                                                                                                                                                                                                                                                        |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (4) | Based on a Schedule 13F filed by Dimensional Fund Advisors LP ("Dimensional") with the SEC on February 14, 2020. Dimensional has informed the Company that the shares are owned by advisory clients of Dimensional and that Dimensional disclaims beneficial ownership of such shares. |

----

|                                                          |
|----------------------------------------------------------|
|                                                          |  |  |  |  |  |  |  |  |
| Name of Beneficial Owner                  |   | Amount and Natureof Beneficial Owner |   |   |   | Percent of Class (1) |
| Tamar Elkeles                                            |   | 6,176 |  |   |   |   | * |  |
| Marshall S. Geller                                       |   | 158,741 |  |   |   |   | * |  |
| Scott N. Greenberg                                       |   | 158,985 |  |   | (1) |   | * |  |
| Steven E. Koonin                                         |   | 14,350 |  |   |   |   | * |  |
| Jacques Manardo                                          |   | 7,055 |  |   |   |   | * |  |
| Richard C. Pfenniger, Jr.                                |   | 48,053 |  |   |   |   | * |  |
| Samuel D. Robinson                                       |   | 3,651,598 |  |   | (2) |   | 21.3 | % |
| Kenneth L. Crawford                                      |   | 29,302 |  |   | (1) |   | * |  |
| Michael R. Dugan                                         |   | 6,248 |  |   | (1) |   | * |  |
| Donald R. Duquette                                       |   | 45,609 |  |   | (1) |   | * |  |
| Adam H. Stedham                                          |   | 11,598 |  |   | (1) |   | * |  |
| Directors and Executive Officers as a group (13 persons) |   | 4,153,573 |  |   | (3) |   | 24.2 | % |

|     |                                                                                                                                                                                                                                           |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | Includes 16,922 shares for Mr. Greenberg, 4,381 shares for Mr. Crawford, 1,659 shares for Mr. Dugan, 14,932 shares for Mr. Duquette and 7,105 shares for Mr. Stedham allocated pursuant to the provisions of our Retirement Savings Plan. |
|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | The amount reported by Samuel D. Robinson includes 12,231 shares owned directly by him and 3,639,367 shares represents the beneficial ownership of the Company’s securities by Sagard Capital Partners, L.P., a Delaware limited partnership ("Sagard Capital"). Mr. Robinson is the President of Sagard Holdings ULC and its subsidiary, Sagard Capital Partners Management Corporation ("Sagard Management"), the investment manager of Sagard Capital, and of Sagard Capital Partners GP, Inc., the general partner of Sagard Capital. Mr. Robinson disclaims beneficial ownership of such securities by virtue of his position as the President of Sagard Management. |
|     |                                                                                                                         |
|-----|-------------------------------------------------------------------------------------------------------------------------|
| (3) | Includes 47,664 shares of Common Stock allocated to accounts pursuant to the provisions of our Retirement Savings Plan. |

|                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                                                                                           |  |  |  |
| Plan category:                                                                                                                                                                            |   |  |
| Equity compensation plans not approved by security holders:                                                                                                                               |   |  |
| (a)   Number of securities to be issued upon exercise of outstanding options                                                                                               | — |  |
| (b)   Weighted average exercise price of outstanding options                                                                                                               | $ | — |  |
| (c)    Number of securities remaining available for future issuance under equity compensation plans                  (excluding securities reflected in row (a)) | — |  |
|                                                                                                                                                                                      |   |  |
| Equity compensation plans approved by security holders:                                                                                                                                   |   |  |
| (a)   Number of securities to be issued upon exercise of outstanding options                                                                                               | — |  |
| (b)   Weighted average exercise price of outstanding options                                                                                                          | $ | — |  |
| (c)    Number of securities remaining available for future issuance under equity compensation plans                                                                   | 827,855 |  |

----

----

|                             |
|-----------------------------|
|                             |  |  |  |  |  |  |  |  |
|                        |   | 2019 |   | 2018 |
| Audit Fees (1)         |   | $ | 2,042,000 |  |   | $ | 2,199,000 |  |
| Audit-Related Fees (2) |   | 49,000 |  |   | 28,000 |  |
| Tax Fees (3)           |   | 476,000 |  |   | 300,000 |  |
| All Other Fees              |   | — |  |   | — |  |
| Total                       |   | $ | 2,567,000 |  |   | $ | 2,527,000 |  |

|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (1) | Audit fees for 2019 and 2018 consisted of $1,889,000 and $2,084,000 respectively, for the audit of our consolidated financial statements, including quarterly review services, fees with respect to the audit of internal control over financial reporting and SEC reporting matters, $133,000 and $115,000 for 2019 and 2018, respectively, for statutory audit services for foreign subsidiaries, and fees related to an updated consent for a Form S-8 registration statement filing of $20,000 for 2019. |
|     |                                                                                                                                                                                                                                  |
|-----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (2) | Audit-related fees for 2019 and 2018 consisted of the audit of the financial statements of employee benefit plans of $29,000 and $28,000 for 2019 and 2018, respectively, and work paper review support fees of $20,000 in 2019. |
|     |                                                                                                                                                                               |
|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (3) | Tax fees for 2019 and 2018 consisted of fees for tax compliance services, including the preparation of tax returns, and tax consulting services including technical research. |

----

----

|                       |
|-----------------------|
|                       |  |  |
|                  | GP STRATEGIES CORPORATION |
|                  |   |   |
| Dated: April 29, 2020 |   |   |
|                  |   |   |
|                  | By: | /s/ Scott N. Greenberg |
|                  |   | Scott N. Greenberg |
|                  |   | Chief Executive Officer |
|                  |   |   |
|                  |   | /s/ Michael R. Dugan |
|                  |   | Michael R. Dugan |
|                  |   | Executive Vice President and Chief Financial Officer |

----

|           |
|-----------|
|           |  |
| Index No. |   |
|      |   |
| 31.1      | Certification of Chief Executive Officer* |
|      |   |
| 31.2      | Certification of Chief Financial Officer* |