SEC Insider Transactions from Polaris Venture Management Co. VI, L.L.C..

Last updated: 2026-03-14 11:13 UTC | Total transactions: 10

Polaris Venture Management Co. VI, L.L.C. has filed 10 insider transactions across 1 company since August 2023.

Most recent transaction: a transaction of 500000 shares of Alector, Inc. ($ALEC) on May 29, 2024.

Activity breakdown: 0 open-market purchases and 1 sale.

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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
May 29, 2024 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. Not found J Common Stock 500000 $0.00 9,853,817.0000 0 4.83% 0.00%
May 29, 2024 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. Not found J Common Stock 98533 $0.00 9,952,350.0000 0 1.00% 0.00%
May 29, 2024 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. Not found J Common Stock 98533 $0.00 9,853,817.0000 0 0.99% 0.00%
April 30, 2024 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. Not found J Common Stock 500000 $0.00 10,353,817.0000 0 4.61% 0.00%
April 30, 2024 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. Not found J Common Stock 98533 $0.00 10,452,350.0000 0 0.95% 0.00%
April 30, 2024 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. Not found J Common Stock 98533 $0.00 10,353,817.0000 0 0.94% 0.00%
Sept. 11, 2023 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. TenPercentOwner S Common Stock 500000 $6.00 10,853,817.0000 0 4.40% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. TenPercentOwner J Common Stock 500000 $0.00 11,353,817.0000 0 4.22% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. TenPercentOwner J Common Stock 98533 $0.00 11,452,350.0000 0 0.87% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC Polaris Venture Management Co. VI, L.L.C. TenPercentOwner J Common Stock 98533 $0.00 11,353,817.0000 0 0.86% 0.00%