Bolt Biotherapeutics, Inc. (BOLT) Insider Ownership

Historic Insider Ownership Trends

Through the 90-day period concluding February 19, 2026, Bolt Biotherapeutics's top three insider stakeholders include TenPercentOwner Holdings A/S Novo (185.20K shares), Chief Operating Officer Grant Yonehiro (38.92K shares), Director Edgar Engleman (12.58K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Holdings A/S Novo 185,200 15 Jul, 2022
Edgar Engleman 12,576 01 Dec, 2023
Capital Viii, Llc Vivo 5,583 22 Nov, 2023
Grant Yonehiro Chief Operating Officer 38,918 24 Oct, 2025
Edith A. Perez Chief Medical Officer 1,852 01 Feb, 2022
William P. Quinn President And Ceo And Cfo 2,313 04 Feb, 2026
Sarah Nemec Senior Vp And Finance And Pao 1,415 04 Feb, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
05 Dec, 2025 William P. Quinn Common Stock A 125 $4.61 2,313 D P
05 Dec, 2025 Sarah Nemec Common Stock A 125 $4.61 1,415 D P
22 Oct, 2025 Grant Yonehiro - - 38,918 D
22 Oct, 2025 Grant Yonehiro Common Stock A 30,000 $0.00 38,918 D A
22 Oct, 2025 William P. Quinn Common Stock A 40,000 $0.00 42,188 D A
22 Oct, 2025 Sarah Nemec Common Stock A 23,000 $0.00 23,943 D A
06 Jun, 2025 William P. Quinn Common Stock A 125 $5.49 109 D P
06 Jun, 2025 Sarah Nemec Common Stock A 125 $5.49 47 D P
16 Dec, 2024 William P. Quinn Common Stock A 2,500 $0.50 2,064 D P
16 Dec, 2024 Sarah Nemec Common Stock A 2,500 $0.50 832 D P
06 Jun, 2024 William P. Quinn Common Stock A 2,500 $0.64 1,939 D P
06 Jun, 2024 Sarah Nemec Common Stock A 2,500 $0.64 693 D P
12 Dec, 2023 William P. Quinn Common Stock A 7,500 $0.95 1,814 D P
06 Dec, 2023 William P. Quinn Common Stock A 2,500 $0.78 1,439 D P
30 Nov, 2023 Edgar Engleman Common Stock D 14,934 $0.86 12,576 I S
30 Nov, 2023 Edgar Engleman - - 12,576 I
30 Nov, 2023 Edgar Engleman - - 91,074 I
30 Nov, 2023 Edgar Engleman Common Stock D 108,145 $0.86 91,074 I S
29 Nov, 2023 Edgar Engleman Common Stock D 22,674 $0.91 96,481 I S
29 Nov, 2023 Edgar Engleman Common Stock D 3,131 $0.91 13,323 I S