| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ATCX | Class A Common Stock | Other | $0 | -35,838 | -6.1% | $0.000000 | 555,818 | 07 Jun 2021 | See Footnote | F1, F2 |
| holding | ATCX | Class A Common Stock | 30,651 | 07 Jun 2021 | Direct | ||||||
| holding | ATCX | Class A Common Stock | 82,119 | 07 Jun 2021 | By Cappa Family Trust | ||||||
| holding | ATCX | Class B Common Stock | 861,324 | 07 Jun 2021 | See Footnote | F3, F4 |
| Id | Content |
|---|---|
| F1 | 15,181 shares of Class A common stock held by Engineering & Testing Services Holdings Corporation ("ETS Holdings"), 11,274 shares of Class A common stock held by Engineering Services Holdings Corporation ("ES Holdings") and 9,383 shares of Class A common stock held by CEL Consulting Holdings Corporation ("CEL") were distributed to certain individual stockholders of ETS Holdings, ES Holdings, and CEL (collectively the "Distribution"). As a result of the Distribution, Mr. Cappa is not longer deemed to beneficially own the Class A common stock now held directly by individuals other than Mr. Cappa. |
| F2 | 375,412 shares of Class A common stock are held directly by ETS Holdings, 144,940 shares of Class A common stock are held directly by ES Holdings and 35,466 shares of Class A common stock are held directly by CEL. The Reporting Person directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Class A common stock held by ETS Holdings, ES Holdings and CEL. The Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest in ETS Holdings, ES Holdings and CEL, and this report shall not otherwise be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. |
| F3 | 580,145 shares of Class B common stock and an equal number of Opco Units are held directly by ETS Holdings, 222,204 shares of Class B common stock and an equal number of Opco Units are held directly by ES Holdings and 58,975 shares of Class B common stock and an equal number of Opco Units are held directly by CEL. The Reporting Person directly (whether through ownership or position) or indirectly through one or more intermediaries, may be deemed for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, to be the indirect beneficial owner of the Opco Units (together with an equal number of shares of Class B common stock), or shares which may be issued upon the redemption of Opco Units (together with an equal number of shares of Class B common stock), held by ETS Holdings, ES Holdings and CEL. |
| F4 | (continued from Footnote 3) The Reporting Person disclaims beneficial ownership of such shares except to the extent of his pecuniary interest in ETS Holdings, ES Holdings and CEL, and this report shall not otherwise be deemed an admission that he is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. |