SEC Insider Transactions from GRASSO MARC.

Last updated: 2026-03-17 21:00 UTC | Total transactions: 16

Marc Grasso, CFO of Alector, Inc. ($ALEC), made one open market sale of company shares in the last year, totaling about $22,068. His most recent sale occurred on June 2, 2025. These sales rank 10,986th among 11,678 individual insiders, compared to an average sale value of $8.6 million across 6 transactions per insider. Grasso had no open market purchases in the period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 13, 2026 Kyverna Therapeutics, Inc. $KYTX GRASSO MARC Chief Financial Officer A Common Stock 10000 $0.00 10,000.0000 43,796,170 9999.99% 0.02%
March 13, 2026 Kyverna Therapeutics, Inc. $KYTX GRASSO MARC Chief Financial Officer A Stock Option (right to buy) 65000 $0.00 65,000.0000 43,796,170 9999.99% 0.15%
June 30, 2025 Kyverna Therapeutics, Inc. $KYTX GRASSO MARC Chief Financial Officer A Stock Option (right to buy) 450000 $0.00 450,000.0000 43,214,918 50.00% 1.04%
June 2, 2025 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 16488 $1.34 296,072.0000 99,085,888 5.28% 0.02%
March 3, 2025 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 18091 $1.47 312,560.0000 99,085,888 5.47% 0.02%
Dec. 2, 2024 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 16489 $2.52 330,651.0000 0 4.75% 0.00%
Oct. 1, 2024 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer A Common Stock 216400 $0.00 347,140.0000 0 165.52% 0.00%
Sept. 3, 2024 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 7297 $4.88 130,740.0000 0 5.29% 0.00%
June 3, 2024 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 6920 $4.80 138,037.0000 0 4.77% 0.00%
March 4, 2024 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 5716 $6.92 144,957.0000 0 3.79% 0.00%
Dec. 4, 2023 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 4574 $5.56 150,673.0000 0 2.95% 0.00%
Oct. 1, 2023 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer A Common Stock 123000 $0.00 155,247.0000 0 381.43% 0.00%
Oct. 1, 2023 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer A Employee Stock Option (right to buy) 41000 $0.00 41,000.0000 0 9999.99% 0.00%
Sept. 5, 2023 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 1114 $5.19 32,247.0000 0 3.34% 0.00%
June 2, 2023 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 1050 $6.90 33,361.0000 0 3.05% 0.00%
March 2, 2023 Alector, Inc. $ALEC GRASSO MARC Chief Financial Officer S Common Stock 1291 $8.32 34,411.0000 0 3.62% 0.00%