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These shares were sold in multiple transactions at prices ranging from $37.73 to $38.19, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":1584144,"source":{"system":"sec-edgar","filing":"0001309192-26-000013","document":"wk-form4_1791490406.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000130919226000013/wk-form4_1791490406.xml","form_type":"4"}},{"id":4637818,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":24579,"kind":"person","name":"Calkins Matthew W","position":1,"cik":"0001309192","reported_name":"Calkins Matthew W","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"CEO and President"}}],"security":"Class A Common Stock","published_at":"2026-10-08T20:13:28.000Z","date":"2026-10-07","kind":"sale","planned":true,"acquired":false,"shares":32600,"price":37.32,"value":1216632.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents sales that occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.72 to $37.71, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":1596544,"source":{"system":"sec-edgar","filing":"0001309192-26-000013","document":"wk-form4_1791490406.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000130919226000013/wk-form4_1791490406.xml","form_type":"4"}},{"id":4634864,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32804,"kind":"person","name":"Edwards Shirley Ann","position":1,"cik":"0001958161","reported_name":"Edwards Shirley Ann","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common 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Stock","published_at":"2026-10-03T00:13:20.000Z","date":"2026-10-01","kind":"grant","planned":false,"acquired":true,"shares":886,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These shares were granted under the Issuer's 2017 Equity Incentive Plan pursuant to the Issuer's Non-Employee Director Compensation Policy, as amended and approved by the Board of Directors on December 18, 2020."}],"balance_after":47514,"source":{"system":"sec-edgar","filing":"0001707384-26-000009","document":"wk-form4_1790971996.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000009/wk-form4_1790971996.xml","form_type":"4"}},{"id":4634873,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie 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2020."}],"balance_after":886,"source":{"system":"sec-edgar","filing":"0001362638-26-000013","document":"wk-form4_1790971969.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000013/wk-form4_1790971969.xml","form_type":"4"}},{"id":4615890,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-09-11T20:17:38.000Z","date":"2026-09-09","kind":"exercise","planned":false,"acquired":false,"shares":10800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":10800},"source":{"system":"sec-edgar","filing":"0001362638-26-000012","document":"wk-form4_1789157855.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000012/wk-form4_1789157855.xml","form_type":"4"}},{"id":4615889,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-09-11T20:17:38.000Z","date":"2026-09-09","kind":"exercise","planned":false,"acquired":true,"shares":10800,"price":11.17,"value":120636.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":10800,"derivative":{"underlying":"Class A Common Stock","underlying_shares":10800},"source":{"system":"sec-edgar","filing":"0001362638-26-000012","document":"wk-form4_1789157855.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000012/wk-form4_1789157855.xml","form_type":"4"}},{"id":4615888,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-09-11T20:17:38.000Z","date":"2026-09-09","kind":"exercise","planned":false,"acquired":false,"shares":10800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Fully vested."}],"balance_after":0,"derivative":{"exercise_price":11.17,"expiration_date":"2027-01-31","underlying":"Class B Common Stock","underlying_shares":10800},"source":{"system":"sec-edgar","filing":"0001362638-26-000012","document":"wk-form4_1789157855.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000012/wk-form4_1789157855.xml","form_type":"4"}},{"id":4615887,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-09-11T20:17:38.000Z","date":"2026-09-09","kind":"exercise","planned":false,"acquired":true,"shares":10800,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":10800,"source":{"system":"sec-edgar","filing":"0001362638-26-000012","document":"wk-form4_1789157855.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000012/wk-form4_1789157855.xml","form_type":"4"}},{"id":4614682,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":24579,"kind":"person","name":"Calkins Matthew W","position":1,"cik":"0001309192","reported_name":"Calkins Matthew W","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"CEO and President"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:28:24.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":1996,"price":37.07,"value":73991.72,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents sales that occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.39 to $37.40, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":1629144,"source":{"system":"sec-edgar","filing":"0001309192-26-000011","document":"wk-form4_1789072101.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000130919226000011/wk-form4_1789072101.xml","form_type":"4"}},{"id":4614681,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":24579,"kind":"person","name":"Calkins Matthew W","position":1,"cik":"0001309192","reported_name":"Calkins Matthew W","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"CEO and President"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:28:24.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":19116,"price":35.58,"value":680147.28,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents sales that occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.14 to $35.58, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":1631140,"source":{"system":"sec-edgar","filing":"0001309192-26-000011","document":"wk-form4_1789072101.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000130919226000011/wk-form4_1789072101.xml","form_type":"4"}},{"id":4614680,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":24579,"kind":"person","name":"Calkins Matthew W","position":1,"cik":"0001309192","reported_name":"Calkins Matthew W","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"CEO and President"}}],"security":"Class A Common Stock","published_at":"2026-09-10T20:28:24.000Z","date":"2026-09-08","kind":"sale","planned":true,"acquired":false,"shares":23888,"price":34.73,"value":829630.24,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents sales that occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 5, 2026."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.14 to $35.13, inclusive. 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The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."}],"balance_after":1769144,"source":{"system":"sec-edgar","filing":"0001309192-26-000006","document":"wk-form4_1781121832.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000130919226000006/wk-form4_1781121832.xml","form_type":"4"}},{"id":781132,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":25931,"kind":"person","name":"Dorsey Mark","position":1,"cik":"0002042934","reported_name":"Dorsey Mark","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Revenue Officer"}}],"security":"Class A Common 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service to the Issuer through the vesting date."}],"balance_after":15848,"derivative":{"underlying":"Class A Common Stock","underlying_shares":15848},"source":{"system":"sec-edgar","filing":"0001913014-26-000006","document":"wk-form4_1778184400.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000191301426000006/wk-form4_1778184400.xml","form_type":"4"}},{"id":788448,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":49095,"kind":"person","name":"Zamudio-Ramirez Pavel","position":1,"cik":"0001913014","reported_name":"Zamudio-Ramirez Pavel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Customer Officer"}}],"security":"Restricted Stock 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service to the Issuer through the vesting date."}],"balance_after":8805,"derivative":{"underlying":"Class A Common Stock","underlying_shares":2935},"source":{"system":"sec-edgar","filing":"0001913014-26-000006","document":"wk-form4_1778184400.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000191301426000006/wk-form4_1778184400.xml","form_type":"4"}},{"id":788446,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":49095,"kind":"person","name":"Zamudio-Ramirez Pavel","position":1,"cik":"0001913014","reported_name":"Zamudio-Ramirez Pavel","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Customer Officer"}}],"security":"Class A Common 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In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":10800,"derivative":{"underlying":"Class A Common Stock","underlying_shares":10800},"source":{"system":"sec-edgar","filing":"0001362638-26-000009","document":"wk-form4_1775846287.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000009/wk-form4_1775846287.xml","form_type":"4"}},{"id":810331,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-04-10T18:38:11.000Z","date":"2026-04-10","kind":"exercise","planned":false,"acquired":true,"shares":10800,"price":11.17,"value":120636.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":10800,"derivative":{"underlying":"Class A Common Stock","underlying_shares":10800},"source":{"system":"sec-edgar","filing":"0001362638-26-000009","document":"wk-form4_1775846287.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000009/wk-form4_1775846287.xml","form_type":"4"}},{"id":810330,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-04-10T18:38:11.000Z","date":"2026-04-10","kind":"exercise","planned":false,"acquired":false,"shares":10800,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Fully vested."}],"balance_after":10800,"derivative":{"exercise_price":11.17,"expiration_date":"2027-01-31","underlying":"Class B Common Stock","underlying_shares":10800},"source":{"system":"sec-edgar","filing":"0001362638-26-000009","document":"wk-form4_1775846287.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000009/wk-form4_1775846287.xml","form_type":"4"}},{"id":810329,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-04-10T18:38:11.000Z","date":"2026-04-10","kind":"exercise","planned":false,"acquired":true,"shares":10800,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":12096,"source":{"system":"sec-edgar","filing":"0001362638-26-000009","document":"wk-form4_1775846287.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000009/wk-form4_1775846287.xml","form_type":"4"}},{"id":819381,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32803,"kind":"person","name":"Link David Forrest","position":1,"cik":"0002109287","reported_name":"Link David 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RSU represents a contingent right to receive one share of Issuer's Class A Common Stock (or its cash equivalent, at the discretion of the Issuer)."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs were granted on August 20, 2025, and vest in four (4) equal annual installments commencing on August 5, 2026, provided that the Reporting Person has provided continuous service to the Issuer through each vesting date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The RSUs were granted on August 20, 2025, and vest in four (4) equal annual installments commencing on August 5, 2026, provided that the Reporting Person has provided continuous service to the Issuer through each vesting date."}],"balance_after":18132,"derivative":{"underlying":"Class A Common 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In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":100},"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867420,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":true,"shares":100,"price":12,"value":1200.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":100,"derivative":{"underlying":"Class A Common Stock","underlying_shares":100},"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867419,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":false,"shares":100,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Fully vested."}],"balance_after":0,"derivative":{"exercise_price":12,"expiration_date":"2027-04-25","underlying":"Class B Common Stock","underlying_shares":100},"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867418,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":false,"shares":9430,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":9430},"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867417,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":true,"shares":9430,"price":9.46,"value":89207.8,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":9430,"derivative":{"underlying":"Class A Common Stock","underlying_shares":9430},"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867416,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Employee Stock Option (Right to Buy)","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":false,"shares":9430,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"Fully vested."}],"balance_after":0,"derivative":{"exercise_price":9.46,"expiration_date":"2026-07-20","underlying":"Class B Common Stock","underlying_shares":9430},"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867415,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"sale","planned":false,"acquired":false,"shares":9530,"price":27,"value":257310.0,"ownership":{"direct":true},"balance_after":43968,"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867414,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":true,"shares":100,"price":12,"value":1200.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":53498,"source":{"system":"sec-edgar","filing":"0001707384-26-000004","document":"wk-form4_1772576489.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000004/wk-form4_1772576489.xml","form_type":"4"}},{"id":867413,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32888,"kind":"person","name":"Lynch Mark Steven","position":1,"cik":"0001707384","reported_name":"Lynch Mark Steven","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-03-03T22:21:31.000Z","date":"2026-03-03","kind":"exercise","planned":false,"acquired":true,"shares":9430,"price":9.46,"value":89207.8,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. 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that the Reporting Person has provided continuous service to the Issuer through each vesting date."}],"balance_after":65108,"derivative":{"underlying":"Class A Common Stock","underlying_shares":65108},"source":{"system":"sec-edgar","filing":"0002055009-26-000002","document":"wk-form4_1771535058.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/2055009/000205500926000002/wk-form4_1771535058.xml","form_type":"4"}},{"id":893237,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common 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In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":21600},"source":{"system":"sec-edgar","filing":"0001362638-26-000005","document":"wk-form4_1771535016.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000005/wk-form4_1771535016.xml","form_type":"4"}},{"id":893236,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2026-02-19T21:03:39.000Z","date":"2026-02-18","kind":"exercise","planned":false,"acquired":true,"shares":21600,"price":11.17,"value":241272.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":21600,"derivative":{"underlying":"Class A Common Stock","underlying_shares":21600},"source":{"system":"sec-edgar","filing":"0001362638-26-000005","document":"wk-form4_1771535016.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000005/wk-form4_1771535016.xml","form_type":"4"}},{"id":893235,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2026-02-19T21:03:39.000Z","date":"2026-02-18","kind":"exercise","planned":false,"acquired":false,"shares":21600,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Fully vested."}],"balance_after":21600,"derivative":{"exercise_price":11.17,"expiration_date":"2027-01-31","underlying":"Class B Common Stock","underlying_shares":21600},"source":{"system":"sec-edgar","filing":"0001362638-26-000005","document":"wk-form4_1771535016.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000005/wk-form4_1771535016.xml","form_type":"4"}},{"id":893234,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2026-02-19T21:03:39.000Z","date":"2026-02-18","kind":"exercise","planned":false,"acquired":true,"shares":21600,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":21600,"source":{"system":"sec-edgar","filing":"0001362638-26-000005","document":"wk-form4_1771535016.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263826000005/wk-form4_1771535016.xml","form_type":"4"}},{"id":919310,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32803,"kind":"person","name":"Link David Forrest","position":1,"cik":"0002109287","reported_name":"Link David 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2020."}],"balance_after":43968,"source":{"system":"sec-edgar","filing":"0001707384-26-000002","document":"wk-form4_1767647329.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1707384/000170738426000002/wk-form4_1767647329.xml","form_type":"4"}},{"id":951607,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":70324,"kind":"person","name":"Biddle Albert G.W. 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In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":22000},"source":{"system":"sec-edgar","filing":"0001362638-25-000004","document":"wk-form4_1764971249.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263825000004/wk-form4_1764971249.xml","form_type":"4"}},{"id":978918,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class B Common Stock","published_at":"2025-12-05T21:47:33.000Z","date":"2025-12-04","kind":"exercise","planned":false,"acquired":true,"shares":22000,"price":11.17,"value":245740.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":22000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":22000},"source":{"system":"sec-edgar","filing":"0001362638-25-000004","document":"wk-form4_1764971249.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263825000004/wk-form4_1764971249.xml","form_type":"4"}},{"id":978917,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Stock Option (Right to Buy)","published_at":"2025-12-05T21:47:33.000Z","date":"2025-12-04","kind":"exercise","planned":false,"acquired":false,"shares":22000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"Fully vested."}],"balance_after":43200,"derivative":{"exercise_price":11.17,"expiration_date":"2027-01-31","underlying":"Class B Common Stock","underlying_shares":22000},"source":{"system":"sec-edgar","filing":"0001362638-25-000004","document":"wk-form4_1764971249.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263825000004/wk-form4_1764971249.xml","form_type":"4"}},{"id":978916,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":32802,"kind":"person","name":"Kilberg Bobbie G","position":1,"cik":"0001362638","reported_name":"Kilberg Bobbie G","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Class A Common Stock","published_at":"2025-12-05T21:47:33.000Z","date":"2025-12-04","kind":"exercise","planned":false,"acquired":true,"shares":22000,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Pursuant to the terms of the Class B Common Stock, the Reporting Person converted shares of Class B Common Stock into shares of Class A Common Stock."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"(continued from Footnote (2)) (2) the death or disability, as defined in the Issuer's certificate of incorporation, of the applicable Class B common stockholder (or nine months after the date of death or disability if the stockholder is one of the Issuer's founders). In addition, on the first trading day following the date on which the outstanding shares of Class B Common Stock represent less than 10% of the aggregate voting power of the Issuer's then outstanding capital stock, all outstanding shares of Class B Common Stock shall convert automatically into Class A Common Stock, and no additional shares of Class B Common Stock will be issued."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Each share of Class B Common Stock is convertible at any time at the option of the holder into one share of Class A Common Stock and has no expiration date. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (1) any transfer, whether or not for value and whether voluntary or involuntary or by operation of law, except for certain transfers described in the Issuer's certificate of incorporation, including, without limitation, certain transfers for tax and estate planning purposes or (continued to Footnote (3))"}],"balance_after":22000,"source":{"system":"sec-edgar","filing":"0001362638-25-000004","document":"wk-form4_1764971249.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000136263825000004/wk-form4_1764971249.xml","form_type":"4"}},{"id":1005753,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":73497,"kind":"person","name":"Winters Christopher","position":1,"cik":"0001706796","reported_name":"Winters 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date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"The RSUs were granted on November 5, 2024, and vest in four (4) equal annual installments commencing on November 5, 2025, provided that the Reporting Person has provided continuous service to the Issuer through such vesting date."}],"balance_after":4869,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1623},"source":{"system":"sec-edgar","filing":"0001706796-25-000003","document":"wk-form4_1762461737.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000170679625000003/wk-form4_1762461737.xml","form_type":"4"}},{"id":1005752,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":73497,"kind":"person","name":"Winters Christopher","position":1,"cik":"0001706796","reported_name":"Winters 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provided continuous service to the Issuer through such vesting date."}],"balance_after":3182,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1591},"source":{"system":"sec-edgar","filing":"0001706796-25-000003","document":"wk-form4_1762461737.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000170679625000003/wk-form4_1762461737.xml","form_type":"4"}},{"id":1005750,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":73497,"kind":"person","name":"Winters Christopher","position":1,"cik":"0001706796","reported_name":"Winters Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Restricted Stock 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continuous service to the Issuer through such vesting date."}],"balance_after":1234,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1234},"source":{"system":"sec-edgar","filing":"0001706796-25-000003","document":"wk-form4_1762461737.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1441683/000170679625000003/wk-form4_1762461737.xml","form_type":"4"}},{"id":1005749,"issuer":{"id":4256,"kind":"organization","name":"APPIAN CORP","symbol":"APPN"},"owners":[{"id":73497,"kind":"person","name":"Winters Christopher","position":1,"cik":"0001706796","reported_name":"Winters Christopher","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"General Counsel"}}],"security":"Class A Common 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