TSVT

2seventy bio, Inc.

Total Trades

52

Buys

4

Sells

46

Largest Trade

N/A

Insiders

10

Institutional Funds

2

Inst. Value

$15K–$50K

Activist Filings

26

Insider Trades

InsiderTitleTypeValueSharesPriceDate
Snow JessicaCOOSELL$1K–$15K2K$4.95Mar 19, 2025
Baird William D IIIPresident and CEOSELL$15K–$50K5K$4.95Mar 19, 2025
Eatwell VictoriaCFOSELL$1K–$15K3K$4.95Mar 19, 2025
Kynam Global Healthcare Master Fund, LP10% OwnerSELL$1M+16.2M$4.93Mar 13, 2025
Snow JessicaSee RemarksSELL$15K–$50K6K$2.81Jan 7, 2025
Leschly NickDirectorSELL$100K–$500K87K$2.93Jan 7, 2025
Eatwell VictoriaCFOSELL$1K–$15K1K$2.92Jan 7, 2025
Baird William D IIIPresident and CEOSELL$50K–$100K32K$2.93Jan 7, 2025
Maus Marcela V.DirectorSELL$1K–$15K4K$3.38Nov 20, 2024
Snow JessicaSee RemarksSELL$1K–$15K679$4.65Oct 7, 2024
Eatwell VictoriaCFOSELL$1K–$15K1K$4.65Oct 7, 2024
Snow JessicaSee RemarksSELL$15K–$50K8K$4.32Aug 16, 2024
Snow JessicaSee RemarksSELL<$1K14$4.02Jul 3, 2024
Snow JessicaSee RemarksGRANTN/A109KJul 3, 2024
Eatwell VictoriaCFOSELL<$1K12$4.02Jul 3, 2024
Eatwell VictoriaCFOGRANTN/A246KJul 3, 2024
Eatwell VictoriaCFOSELL$1K–$15K1K$4.18Jun 5, 2024
Snow JessicaSee RemarksSELL$1K–$15K649$4.18Jun 5, 2024
Casdin Capital, LLCDirectorBUY$100K–$500K40K$5.10Mar 29, 2024
Casdin Capital, LLCDirectorBUY$1M+777K$5.02Mar 26, 2024
Leschly NickPresident and CEOSELL$50K–$100K9K$5.49Aug 24, 2023
Gregory Philip DChief Scientific O…SELL$15K–$50K6K$5.49Aug 24, 2023
Baird William D IIICFOSELL$15K–$50K7K$5.49Aug 24, 2023
Kynam Global Healthcare Master Fund, LP10% OwnerBUY$1M+602K$5.92Aug 16, 2023
Kynam Capital Management, LP10% OwnerBUY$1M+602K$5.92Aug 15, 2023
Leschly NickPresident and CEOSELL$50K–$100K9K$6.13Aug 7, 2023
Gregory Philip DChief Scientific O…SELL$15K–$50K4K$6.13Aug 7, 2023
Baird William D IIICFOSELL$15K–$50K7K$6.13Aug 7, 2023
Baird William D IIICFOSELL$1K–$15K637$12.86Feb 15, 2023
Heffron NicolaCOOSELL<$1K60$14.70Feb 9, 2023
Gregory Philip DChief Scientific O…SELL$1K–$15K1K$10.63Jan 18, 2023
Heffron NicolaCOOSELL$1K–$15K128$10.63Jan 18, 2023
Leschly NickPresident and CEOSELL$15K–$50K2K$10.63Jan 18, 2023
Baird William D IIICFOSELL$1K–$15K1K$10.63Jan 18, 2023
Leschly NickPresident and CEOSELL$50K–$100K7K$10.46Jan 17, 2023
Heffron NicolaCOOSELL$1K–$15K584$10.33Jan 11, 2023
Gregory Philip DChief Scientific O…SELL$15K–$50K4K$10.33Jan 11, 2023
Baird William D IIICFOSELL$15K–$50K3K$10.33Jan 11, 2023
Leschly NickPresident and CEOSELL$15K–$50K3K$10.33Jan 11, 2023
Heffron NicolaCOOSELL$1K–$15K272$15.43Dec 6, 2022
Heffron NicolaCOOSELL$100K–$500K8K$13.97Nov 23, 2022
Baird William D IIICFOSELL$50K–$100K4K$16.23Aug 8, 2022
Gregory Philip DChief Scientific O…SELL$15K–$50K2K$16.23Aug 8, 2022
Leschly NickPresident and CEOSELL$50K–$100K5K$16.23Aug 8, 2022
Baird William D IIICFOSELL$50K–$100K4K$13.81Jul 19, 2022
Gregory Philip DChief Scientific O…SELL$15K–$50K2K$13.81Jul 19, 2022
Leschly NickPresident and CEOSELL$50K–$100K5K$13.81Jul 19, 2022
Baird William D IIICFOSELL$1K–$15K427$14.78Feb 22, 2022
Heffron NicolaCOOSELL$15K–$50K2K$15.88Feb 8, 2022
Baird William D IIICFOSELL$15K–$50K896$23.91Jan 11, 2022
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Institutional Ownership

13F filings as of Jun 30, 2025 · 2 funds holding

FundShares
OSAIC HOLDINGS, INC.3K
IFP Advisors, Inc0

Activist & 5%+ Owners

SC 13D/13G filings — investors holding 5%+ of outstanding shares

Glazer Capital, LLC

SC 13G/A · Aug 14, 2025

0.0%

0 shares

Beryl Capital Management LLC

SC 13G/A · Aug 14, 2025

0.0%

0 shares

THE GOLDMAN SACHS GROUP, INC.

SC 13G/A · Aug 13, 2025

0.0%

308 shares

Morgan Stanley

SC 13G/A · Jun 6, 2025

0.0%

0 shares

The Vanguard Group

SC 13G/A · Apr 30, 2025

5.4%

2.8M shares

Glazer Capital, LLC

SC 13G · Apr 15, 2025

5.3%

2.8M shares

Beryl Capital Management LLC

SC 13G · Mar 18, 2025

8.1%

4.3M shares

Kynam Capital Management, LP

SC 13G/A · Mar 17, 2025

0.0%

0 shares

Morgan Stanley I.R.S. # 36-3145972

SC 13G/A · Nov 6, 2024

5.5%

2.8M shares

Citadel Advisors LLC

SC 13G/A · Feb 14, 2024

0.0%

6 shares

Baker Bros. Advisors LP

SC 13G/A · Feb 14, 2024

5.0%

2.5M shares

9.4%

4.7M shares

Millennium Management LLC

SC 13G/A · Feb 1, 2024

4.7%

2.4M shares

BlackRock, Inc.

SC 13G/A · Jan 26, 2024

7.7%

3.9M shares

Wellington Management Group LLP

SC 13G/A · Nov 9, 2023

1.6%

803K shares

10.1%

5.1M shares

Millennium Management LLC

SC 13G · May 15, 2023

5.0%

2.5M shares

Citadel Advisors LLC

SC 13G · May 1, 2023

4.1%

6 shares

Baker Bros. Advisors LP

SC 13G · Feb 14, 2023

5.4%

2.1M shares

EcoR1 Capital, LLC

SC 13G/A · Feb 14, 2023

3.0%

1.1M shares

BlackRock, Inc.

SC 13G · Feb 3, 2023

7.9%

3.0M shares

BlackRock, Inc.

SC 13G/A · Apr 8, 2022

4.2%

1.6M shares

EcoR1 Capital, LLC

SC 13G/A · Feb 14, 2022

8.2%

1.9M shares