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
26 Mar 24	BuyUS$203,992	Casdin Capital, LLC	Company	40,000	US$5.10
25 Mar 24	BuyUS$3,899,050	Casdin Capital, LLC	Company	777,377	US$5.12
05 Jan 24	SellUS$5,833	Nick Leschly	Individual	1,554	US$3.75
05 Jan 24	SellUS$2,984	Philip Gregory	Individual	795	US$3.75
05 Jan 24	SellUS$5,180	William Baird	Individual	1,380	US$3.75
03 Jan 24	SellUS$279,739	Nick Leschly	Individual	72,312	US$3.87
03 Jan 24	SellUS$130,179	William Baird	Individual	33,651	US$3.87
03 Jan 24	SellUS$99,084	Philip Gregory	Individual	25,613	US$3.87
22 Aug 23	SellUS$51,090	Nick Leschly	Individual	9,312	US$5.49
22 Aug 23	SellUS$38,576	William Baird	Individual	7,031	US$5.49
22 Aug 23	SellUS$33,791	Philip Gregory	Individual	6,159	US$5.49
10 Aug 23	BuyUS$3,049,287	Kynam Capital Management, LP	Company	515,414	US$5.96
03 Aug 23	SellUS$42,304	William Baird	Individual	6,906	US$6.13
03 Aug 23	SellUS$55,499	Nick Leschly	Individual	9,060	US$6.13
03 Aug 23	SellUS$24,295	Philip Gregory	Individual	3,966	US$6.13

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.

Ownership Breakdown

What is the ownership structure of TSVT?
Owner Type	Number of Shares	Ownership Percentage
Private Companies	14,629	0.0285%
General Public	130,500	0.254%
Individual Insiders	1,685,136	3.28%
Institutions	49,480,867	96.4%

Dilution of Shares: Shareholders have been diluted in the past year, with total shares outstanding growing by 2.2%.

Top Shareholders

Top 25 shareholders own 90.75% of the company

Ownership	Name	Shares	Current Value	Change %	Portfolio %
11.6%	Kynam Capital Management, LP	5,953,825	US$27.7m	0%	2.07%
9.25%	Morgan Stanley, Investment Banking and Brokerage Investments	4,748,235	US$22.1m	269%	no data
8.71%	Goldman Sachs Group, Investment Banking and Securities Investments	4,470,612	US$20.8m	793%	0.01%
7.77%	The Vanguard Group, Inc.	3,985,770	US$18.5m	6.75%	no data
7.62%	BlackRock, Inc.	3,911,724	US$18.2m	-11.4%	no data
4.87%	Baker Bros. Advisors LP	2,497,526	US$11.6m	0%	0.15%
4.55%	Millennium Management LLC	2,335,272	US$10.9m	-36%	0.01%
3.9%	Casdin Capital, LLC	2,000,000	US$9.3m	69.1%	0.81%
3.42%	Madison Avenue Partners, LP	1,754,788	US$8.2m	17.5%	1.13%
2.91%	Engine Capital Management, LP	1,494,304	US$6.9m	337%	1.04%
2.82%	Dafna Capital Management, LLC	1,447,465	US$6.7m	0%	1.61%
2.68%	Nick Leschly	1,376,709	US$6.4m	13.3%	no data
2.6%	Bain Capital Life Sciences Investors, LLC	1,331,801	US$6.2m	-5.47%	0.59%
2.22%	Eversept Partners, L.P.	1,139,111	US$5.3m	-21.6%	0.45%
2.16%	Marshall Wace LLP	1,110,019	US$5.2m	0%	0.01%
2.12%	Geode Capital Management, LLC	1,088,867	US$5.1m	4.16%	no data
1.91%	State Street Global Advisors, Inc.	977,590	US$4.5m	-8.56%	no data
1.87%	Woodline Partners LP	958,682	US$4.5m	0%	0.05%
1.86%	JP Morgan Asset Management	953,652	US$4.4m	-25.9%	no data
1.56%	Cowen Inc,Private Banking and Investment Banking Investments	800,000	US$3.7m	0%	0.18%
1.21%	Charles Schwab Investment Management, Inc.	619,315	US$2.9m	0%	no data
1.01%	Wellington Management Group LLP	515,955	US$2.4m	-82.8%	no data
0.82%	Northern Trust Global Investments	418,997	US$1.9m	-7.05%	no data
0.68%	Point72 Asset Management, L.P.	349,840	US$1.6m	-78.9%	no data
0.63%	AQR Capital Management, LLC	323,816	US$1.5m	8.36%	no data