This company has been acquired

The company may no longer be operating, as it has been acquired. Find out why through their latest events.

2seventy bio Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:TSVT Recent Insider Transactions by Companies or Individuals
Date	Value	Name	Entity	Shares	Max Price
17 Mar 25	SellUS$12,817	Victoria Eatwell	Individual	2,592	US$4.95
17 Mar 25	SellUS$25,180	William Baird	Individual	5,092	US$4.95
17 Mar 25	SellUS$11,364	Jessica Snow	Individual	2,298	US$4.95
11 Mar 25	SellUS$29,352,357	Kynam Capital Management, LP	Company	5,953,825	US$4.93

Insider Trading Volume

Insider Buying: TSVT insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of TSVT?
Owner Type	Number of Shares	Ownership Percentage
Public Companies	1,254,827	2.36%
Individual Insiders	2,275,449	4.27%
General Public	4,051,383	7.61%
Hedge Funds	7,000,000	13.2%
Institutions	38,648,132	72.6%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 79.47% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
8.73%	Goldman Sachs Group, Investment Banking and Securities Investments	4,648,382	US$23.2m	8.8%	0.01%
7.98%	Beryl Capital Management LLC	4,250,000	US$21.2m	0%	7.06%
7.46%	BlackRock, Inc.	3,971,741	US$19.9m	-5.94%	no data
5.36%	Morgan Stanley, Investment Banking and Brokerage Investments	2,851,343	US$14.3m	1.36%	no data
5.3%	The Vanguard Group, Inc.	2,819,469	US$14.1m	-25%	no data
5.17%	Glazer Capital, LLC	2,750,000	US$13.8m	0%	1.58%
4.76%	Newtyn Management, LLC	2,534,836	US$12.7m	-0.2%	1.68%
4.72%	Bank of America Corporation, Asset Management Arm	2,510,478	US$12.6m	317%	no data
4.69%	Baker Bros. Advisors LP	2,497,526	US$12.5m	0%	0.11%
3.76%	Casdin Capital, LLC	2,000,000	US$10.0m	0%	0.89%
2.42%	Nick Leschly	1,289,839	US$6.4m	75.1%	no data
2.36%	Regeneron Pharmaceuticals, Inc.	1,254,827	US$6.3m	0%	no data
2.21%	Geode Capital Management, LLC	1,174,261	US$5.9m	-0.17%	no data
2.02%	State Street Global Advisors, Inc.	1,077,653	US$5.4m	1.78%	no data
1.89%	Eversept Partners, L.P.	1,003,678	US$5.0m	0.56%	0.58%
1.5%	Cowen Inc,Private Banking and Investment Banking Investments	800,000	US$4.0m	0%	0.17%
1.48%	Western Standard, LLC	788,350	US$3.9m	176%	3.63%
1.32%	Engine Capital Management, LP	703,972	US$3.5m	-45.4%	0.49%
1.09%	Madison Avenue Partners, LP	579,895	US$2.9m	-77.4%	0.24%
1.08%	Venator Management LLC	575,000	US$2.9m	9.52%	0.82%
0.89%	Dimensional Fund Advisors LP	475,118	US$2.4m	68.6%	no data
0.86%	JP Morgan Asset Management	455,337	US$2.3m	-7.74%	no data
0.83%	Victoria Eatwell	444,387	US$2.2m	30.7%	no data
0.81%	Dafna Capital Management, LLC	429,252	US$2.1m	-31.9%	0.63%
0.79%	Charles Schwab Investment Management, Inc.	417,950	US$2.1m	-2.5%	no data

Company Analysis and Financial Data Status

Data	Last Updated (UTC time)
Company Analysis	2025/05/15 01:56
End of Day Share Price	2025/05/12 00:00
Earnings	2025/03/31
Annual Earnings	2024/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

Package	Data	Timeframe	Example US Source ^*
Company Financials	10 years	Income statement Cash flow statement Balance sheet	SEC Form 10-K SEC Form 10-Q
Analyst Consensus Estimates	+3 years	Forecast financials Analyst price targets	Analyst Research Reports Blue Matrix
Market Prices	30 years	Stock prices Dividends, Splits and Actions	ICE Market Data SEC Form S-1
Ownership	10 years	Top shareholders Insider trading	SEC Form 4 SEC Form 13D
Management	10 years	Leadership team Board of directors	SEC Form 10-K SEC Form DEF 14A
Key Developments	10 years	Company announcements	SEC Form 8-K

^* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

2seventy bio, Inc. is covered by 2 analysts. 3 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

Analyst	Institution
John Newman	Canaccord Genuity
Salveen Richter	Goldman Sachs