SEC Insider Transactions from MCGUIRE TERRANCE.

Last updated: 2026-03-14 11:39 UTC | Total transactions: 37

Terrance McGuire sold Tectonic Therapeutic Inc ($TECX) shares once on the open market in the last year, totaling $8.55 million, with his most recent sale on April 7, 2025. This ranks him 1272nd among 11,678 insiders by sale value, below the average of $8.6 million across 6.37 transactions per insider. He made no open market purchases.

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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
Dec. 9, 2025 Seer, Inc. $SEER MCGUIRE TERRANCE Not found C Class B Common Stock 4088 $0.00 0.0000 55,786,344 100.00% 0.01%
Dec. 9, 2025 Seer, Inc. $SEER MCGUIRE TERRANCE Not found C Class A Common Stock 4088 $0.00 406,083.0000 55,786,344 1.02% 0.01%
July 7, 2025 Seer, Inc. $SEER MCGUIRE TERRANCE Not found A Class A Common Stock 20500 $0.00 401,995.0000 56,328,539 5.37% 0.04%
July 7, 2025 Seer, Inc. $SEER MCGUIRE TERRANCE Not found A Stock Option (right to buy) 30500 $0.00 30,500.0000 56,328,539 9999.99% 0.05%
June 9, 2025 Tectonic Therapeutic, Inc. $TECX MCGUIRE TERRANCE Not found A Stock Option (Right to Buy) 10200 $0.00 10,200.0000 18,662,672 9999.99% 0.05%
May 20, 2025 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found A Stock Option (Right to Buy) 50000 $0.00 50,000.0000 119,961,445 9999.99% 0.04%
April 7, 2025 Tectonic Therapeutic, Inc. $TECX MCGUIRE TERRANCE Not found S Common Stock 500000 $17.10 657,976.0000 18,662,672 43.18% 2.68%
Dec. 27, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 83744 $0.52 6,988,016.0000 0 1.18% 0.00%
Dec. 31, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 103474 $0.45 6,797,997.0000 0 1.50% 0.00%
Dec. 30, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 86545 $0.48 6,901,471.0000 0 1.24% 0.00%
Dec. 26, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 83817 $0.54 7,071,760.0000 0 1.17% 0.00%
Dec. 20, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 119805 $0.42 7,299,514.0000 0 1.61% 0.00%
Dec. 23, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 75776 $0.45 7,223,738.0000 0 1.04% 0.00%
Dec. 24, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 68161 $0.51 7,155,577.0000 0 0.94% 0.00%
Dec. 18, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 74764 $0.47 7,571,386.0000 0 0.98% 0.00%
Dec. 19, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 152067 $0.43 7,419,319.0000 0 2.01% 0.00%
Dec. 17, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 97410 $0.48 7,646,150.0000 0 1.26% 0.00%
Dec. 12, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 125000 $0.58 7,808,919.0000 0 1.58% 0.00%
Dec. 16, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 65359 $0.47 7,743,560.0000 0 0.84% 0.00%
Dec. 9, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 150000 $0.61 8,269,319.0000 0 1.78% 0.00%
Dec. 10, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 175000 $0.59 8,094,319.0000 0 2.12% 0.00%
Dec. 11, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 160400 $0.59 7,933,919.0000 0 1.98% 0.00%
June 20, 2024 Tectonic Therapeutic, Inc. $TECX MCGUIRE TERRANCE Not found A Common Stock 64652 $0.00 64,652.0000 0 9999.99% 0.00%
June 20, 2024 Tectonic Therapeutic, Inc. $TECX MCGUIRE TERRANCE Not found A Common Stock 20262 $0.00 20,262.0000 0 9999.99% 0.00%
June 20, 2024 Tectonic Therapeutic, Inc. $TECX MCGUIRE TERRANCE Not found A Common Stock 1073062 $0.00 1,073,062.0000 0 9999.99% 0.00%
June 20, 2024 Tectonic Therapeutic, Inc. $TECX MCGUIRE TERRANCE Not found A Stock Option (Right to Buy) 11760 $0.00 11,760.0000 0 9999.99% 0.00%
June 12, 2024 Seer, Inc. $SEER MCGUIRE TERRANCE Not found A Class A Common Stock 58178 $0.00 381,495.0000 64,936,680 17.99% 0.09%
May 29, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found S Common Stock 112381 $1.66 8,419,319.0000 0 1.32% 0.00%
May 21, 2024 Invivyd, Inc. $IVVD MCGUIRE TERRANCE Not found A Stock Option (Right to Buy) 50000 $0.00 50,000.0000 0 9999.99% 0.00%
Sept. 11, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Director S Common Stock 500000 $6.00 10,948,212.0000 0 4.37% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Director J Common Stock 98533 $0.00 153,549.0000 0 179.10% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Director J Common Stock 98533 $0.00 54,996.0000 0 64.18% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Director J Common Stock 13133 $0.00 94,395.0000 0 16.16% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Director J Common Stock 6429 $0.00 94,395.0000 0 7.31% 0.00%
Aug. 22, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Director J Common Stock 500000 $0.00 11,408,813.0000 0 4.20% 0.00%
June 14, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Not found A Common Stock 26250 $0.00 11,928,650.0000 0 0.22% 0.00%
June 14, 2023 Alector, Inc. $ALEC MCGUIRE TERRANCE Not found A Stock Option (right to buy) 12360 $0.00 12,360.0000 0 9999.99% 0.00%