Brumm Joshua T Insider Trades

Insider Trading History

Track insider trading activity for Brumm Joshua T. See latest buy and sell transactions across all companies.

Holdings

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price

Insider Trades History

Company
Holding Value
Last Transaction
Sale/Purchase
Amount
Price
Current Price
Catalyst Biosciences
Catalyst Biosciences CBIO
Chief Executive Officer
Holding Value $5.66M 323,517 shares
Last Trade
Dec 15, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$3.11M 235,584 shares
$13.19
$17.50
Catalyst Biosciences
Catalyst Biosciences CBIO
Chief Executive Officer
Holding Value $6.05M 345,672 shares
Last Trade
Dec 08, 2025 Purchase (Award)Shares received as a grant, bonus, or other company award rather than an open-market purchase.
$4.55M 345,672 shares
$13.17
$17.50
Catalyst Biosciences
Catalyst Biosciences CBIO
Chief Executive Officer
Holding Value $4.7M 268,400 shares
Last Trade
Jun 13, 2025 Sale
$12.9M 805,200 shares
$16.00
$17.50
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $11.4M 564,313 shares
Last Trade
Mar 11, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$1.7M 66,387 shares
$25.67
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $1.69M 83,269 shares
Last Trade
Mar 11, 2024 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$1.28M 50,000 shares
$25.55
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $12.2M 604,385 shares
Last Trade
Mar 11, 2024 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$1.28M 50,000 shares
$25.55
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $14.5M 715,490 shares
Last Trade
Mar 08, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$9.42M 363,343 shares
$25.93
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $18.6M 917,728 shares
Last Trade
Mar 08, 2024 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$9.14M 363,343 shares
$25.16
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $2.7M 133,269 shares
Last Trade
Mar 08, 2024 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$9.14M 363,343 shares
$25.16
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $11.2M 554,385 shares
Last Trade
Mar 07, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$235k 9,086 shares
$25.85
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $6.94M 342,681 shares
Last Trade
Mar 01, 2024 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$2.75M 94,480 shares
$29.13
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $12.9M 638,975 shares
Last Trade
Mar 01, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$2.74M 94,480 shares
$29.04
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $13.3M 657,951 shares
Last Trade
Mar 01, 2024 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$2.75M 94,480 shares
$29.13
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $2.07M 102,343 shares
Last Trade
Feb 29, 2024 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$148k 5,520 shares
$26.90
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $11.5M 568,991 shares
Last Trade
Feb 29, 2024 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$148k 5,520 shares
$26.90
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $11.4M 563,471 shares
Last Trade
Feb 29, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$152k 5,520 shares
$27.50
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $2.19M 107,863 shares
Last Trade
Jan 04, 2024 Sale (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$4.24M 218,536 shares
$19.39
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $12.6M 623,272 shares
Last Trade
Jan 04, 2024 Sale (Open Market)Shares sold on the open market or in a private sale.
$4.05M 218,536 shares
$18.51
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $16.3M 803,507 shares
Last Trade
Jan 04, 2024 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$4.24M 218,536 shares
$19.39
$20.26
Dyne Therapeutics
Dyne Therapeutics DYN
CEO & President
Holding Value $12.9M 636,154 shares
Last Trade
Jan 03, 2024 Purchase (Option Exercise)Shares acquired or sold by exercising stock options or converting another derivative security.
$756k 51,183 shares
$14.77
$20.26

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