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Alector, Inc. (ALEC) Graph

ALEC Revenue Flow

Filed revenue amounts for 2026-04-01 to 2026-06-30. Coverage is partial. Unconnected amounts are separate disclosures; they must not be added together.

  • 2026-06-30: Revenue $3.32M; Research and development $19.46M; Operating expenses $27.71M; Income tax $130.00K.
  • 2026-03-31: Revenue $1.05M; Research and development $17.86M; Operating expenses $25.96M; Income tax $0.00.
  • 2025-12-31: Revenue $6.24M*; Research and development $32.46M*; Operating expenses $45.80M*; Income tax $168.00K*.
  • 2025-09-30: Revenue $3.26M; Research and development $29.35M; Operating expenses $40.87M; Income tax $0.00.

Revenue flow

Separate filed amounts; connecting flows are not established. Components and totals may overlap.

ALEC revenue flowFiled amounts. Only explicit calculation relationships connect amounts; dimensional membership alone does not establish an additive flow.Revenue$3.32MOperating expenses$27.71MOperating income-$24.39MOther income, net$1.53MResearch & development$19.46MPre-tax income-$22.86MIncome tax$130.00KNet income-$22.99M

Finer product or service dollar figures and nonoverlapping groupings are shown only where supported by the retained filing evidence. Growth percentages are never converted to revenue dollars.

Historical revenue and expense breakdown

Revenue and expense 3 month

Period endRevenueResearch and developmentOperating expensesIncome taxNet income
2026-06-30$3.32M$19.46M$27.71M$130.00K-$22.99M
2026-03-31$1.05M$17.86M$25.96M$0.00-$22.93M
2025-12-31$6.24M*$32.46M*$45.80M*$168.00K*-$37.34M*
2025-09-30$3.26M$29.35M$40.87M$0.00-$34.67M
2025-06-30$7.87M$27.61M$42.01M$0.00-$30.52M
2025-03-31$3.67M$33.64M$48.37M$0.00-$40.47M
2024-09-30$15.34M$48.00M$63.78M$0.00-$42.22M
2024-06-30$15.08M$46.31M$60.69M$73.00K-$38.68M
2024-03-31(m)$45.17M$59.60M$7.00K-$36.08M
2023-09-30$9.11M$46.33M$59.69M$1.25M-$44.48M
2023-06-30$56.21M$46.18M$59.80M$1.39M$1.38M
2023-03-31$16.55M$51.89M$66.66M$901.00K-$45.86M
2022-09-30$14.85M$48.35M$62.60M$733.00K-$46.15M
2022-06-30$79.85M$54.53M$70.38M$1.04M$9.88M
2022-03-31$24.47M$53.04M$68.60M$758.00K-$44.62M
2021-09-30$182.41M$43.07M$56.08M$0.00$126.60M
2021-06-30$6.57M$47.82M$61.89M$0.00-$55.15M
2021-03-31$4.11M$45.73M$56.74M$0.00-$52.17M
2020-09-30$5.90M$43.82M$59.65M(m)-$52.70M
2020-06-30$3.17M$34.06M$49.76M(m)-$45.33M
2020-03-31$7.17M$34.60M$49.25M(m)-$40.02M
2019-12-31$6.00M(m)(m)(m)-$30.53M
2019-09-30$2.70M$28.52M$36.84M(m)-$31.74M
2019-06-30$6.92M$25.64M$34.07M(m)-$24.56M
2019-03-31$5.61M$20.61M$26.37M(m)-$18.56M
2018-12-31$9.14M(m)(m)(m)-$17.37M
2018-09-30$6.50M$20.39M$23.32M(m)-$15.32M
2018-06-30$7.11M$16.82M$19.34M(m)-$11.12M
2018-03-31$4.92M$11.72M$14.14M(m)-$8.44M

Revenue and expense 6 month

Period endRevenueResearch and developmentOperating expensesIncome taxNet income
2026-06-30$4.37M$37.32M$53.68M$130.00K-$45.92M
2025-06-30$11.55M$61.25M$90.38M$0.00-$71.00M
2024-06-30$30.98M$91.48M$120.29M$80.00K-$74.75M
2023-06-30$72.76M$98.06M$126.47M$2.29M-$44.48M
2022-06-30$104.33M$107.58M$138.97M$1.80M-$34.73M
2021-06-30$10.68M$93.55M$118.64M$0.00-$107.32M
2020-06-30$10.34M$68.67M$99.01M(m)-$85.34M
2019-06-30$12.52M$46.25M$60.44M(m)-$43.12M
2018-06-30(m)$28.54M$33.48M(m)-$19.56M

Revenue and expense 9 month

Period endRevenueResearch and developmentOperating expensesIncome taxNet income
2025-09-30$14.81M$90.60M$131.25M$0.00-$105.66M
2024-09-30$46.32M$139.48M$184.07M$80.00K-$116.97M
2023-09-30$81.87M$144.39M$186.16M$3.55M-$88.96M
2022-09-30$119.18M$155.93M$201.57M$2.53M-$80.88M
2021-09-30$193.09M$136.62M$174.72M$0.00$19.28M
2020-09-30$16.25M$112.49M$158.66M(m)-$138.05M
2019-09-30$15.22M$74.77M$97.28M(m)-$74.86M
2018-09-30(m)$48.93M$56.80M(m)-$34.88M

Revenue and expense 12 month

Period endRevenueResearch and developmentOperating expensesIncome taxNet income
2025-12-31$21.05M$123.06M$177.05M$168.00K-$143.00M
2024-12-31$100.56M$185.94M$245.56M$128.00K-$119.00M
2023-12-31(m)$192.12M$248.80M$5.21M-$130.00M
2022-12-31(m)$210.42M$271.45M$3.25M-$133.31M
2021-12-31$207.09M$189.41M$244.44M$0.00-$36.33M
2020-12-31$21.10M$156.87M$216.27M$0.00-$190.23M
2019-12-31$21.22M$100.53M$135.62M$0.00-$105.39M
2018-12-31(m)$73.03M$84.97M(m)-$52.25M
2017-12-31(m)$29.91M$36.41M(m)-$32.48M

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