X0609 4 2026-10-22 0 0002101833 Forge Nano Holdings, Inc. NANO 0002141432 Kleinberg Michael A. false C/O FORGE NANO HOLDINGS, INC. 12300 GRANT STREET, SUITE 110 THORNTON CO 80241 0 1 0 0 Chief Financial Officer 0 Common Stock, par value $0.0001 per share 2026-10-22 4 A 0 19719 A 19719 D Stock Option (right to buy) 0.37 2026-10-22 4 A 0 370444 A 2026-10-22 2031-02-07 Common Stock 370444 370444 D Stock Option (right to buy) 0.56 2026-10-22 4 A 0 26358 A 2026-10-22 2032-04-11 Common Stock 26358 26358 D Stock Option (right to buy) 1.03 2026-10-22 4 A 0 25076 A 2034-03-31 Common Stock 25076 25076 D Stock Option (right to buy) 1.33 2026-10-22 4 A 0 441597 A 2034-12-11 Common Stock 441597 441597 D Stock Option (right to buy) 2.94 2026-10-22 4 A 0 17382 A 2035-10-23 Common Stock 17382 17382 D Stock Option (right to buy) 2.94 2026-10-22 4 A 0 34194 A 2036-03-29 Common Stock 34194 34194 D Earnout-shares 2026-10-22 4 A 0 14790 A 2031-10-22 Common Stock 14790 14790 D Performance Stock Units 2026-10-22 4 A 0 464386 A 2031-10-22 Common Stock 464386 464386 D Performance Stock Units 2026-10-22 4 A 0 221905 A 2031-10-22 Common Stock 221905 221905 D Received as consideration for shares of common stock of Forge Nano, Inc. ("Forge Nano") in connection with the Issuer's business combination (the "Business Combination") pursuant to the Agreement and Plan of Merger dated April 20, 2026, by and among Archimedes Tech SPAC Partners II Co., the Issuer (f/k/a ATII Holdings Inc.), ATII Merger Sub Inc., ATII Merger Sub II, LLC and Forge Nano (the "Merger Agreement"). Consists of stock options granted under the 2017 Equity Incentive Plan of Forge Nano that are exercisable for shares of the Issuer's common stock following the closing of the Business Combination. 25% of these stock options vested on April 1, 2025, and the remaining 75% vested and will vest in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer. 25% of these stock options vested on December 12, 2025, and the remaining 75% vested and will vest in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer. 25% of these stock options vested on October 1, 2026, and the remaining 75% will vest in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer. 25% of these stock options will vest on March 31, 2027, and the remaining 75% will vest in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer. Represents earn-out shares granted in connection with the Business Combination. The earn-out shares will vest as follows: (i) one third will vest if the VWAP of the Common Stock equals or exceeds $15.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $400,000,000, (ii) one third of the earn-out shares will vest if the VWAP of the Common Stock equals or exceeds $20.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $600,000,000 and (iii) one third of the earn-out shares will vest if the VWAP of the Common Stock equals or exceeds $25.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $800,000,000. Represents performance stock units, each representing a right to receive one share of common stock of the Issuer, granted to holders of Forge Nano stock options in connection with the Business Combination. The performance stock units will vest as follows: (i) one third of the performance stock units will vest if the VWAP of the Common Stock equals or exceeds $15.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $400,000,000, (ii) one third of the performance stock units will vest if the VWAP of the Common Stock equals or exceeds $20.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $600,000,000 and (iii) one third of the performance stock units will vest if the VWAP of the Common Stock equals or exceeds $25.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $800,000,000. Represents performance stock units, each representing a right to receive one share of common stock of the Issuer, granted to holders of Forge Nano stock options in connection with the Business Combination. The performance stock units will vest as follows, subject to the Reporting Person's continued service with the Issuer through each applicable vesting event: (i) one third of the performance stock units will vest if the VWAP of the Common Stock equals or exceeds $15.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $400,000,000, (ii) one third of the performance stock units will vest if the VWAP of the (Cont'd in FN10) (Cont'd from FN9) Common Stock equals or exceeds $20.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $600,000,000 and (iii) one third of the performance stock units will vest if the VWAP of the Common Stock equals or exceeds $25.00 per share over any 30 trading day period or the revenue of the Issuer for the preceding twelve months equals or exceeds $800,000,000. /s/ Michael Kleinberg 2026-10-26