How many institutions held TSVT - 2seventy bio, Inc. - Common Stock, par value $0.0001 per share in Q3 2023?

140 institutional investors reported TSVT - 2seventy bio, Inc. - Common Stock, par value $0.0001 per share for Q3 2023. Use the holders table for investor-level position and value details.

2seventy bio, Inc. - Common Stock, par value $0.0001 per share (TSVT)

Q: What does CUSIP 901384107 represent in this 13F holders report?

CUSIP 901384107 is the security identifier for TSVT - 2seventy bio, Inc. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

CUSIP: 901384107

Q3 2023 13F Holders as of 30 Sep 2023

Type / Class: Equity / Common Stock, par value $0.0001 per share
Shares outstanding: 52,406,487
Total 13F shares: 54,800,462
Share change: +4,925,101
Total reported value: $214,765,730
Put/Call ratio: 319%
Price per share: $3.92
Number of holders: 140
Value change: -$17,309,644
Number of buys: 77
Number of sells: 55

Security key

901384107

Report period

Q3 2023

Institutions

140

Top holders

TSVT full security history Ownership snapshot Full 13F holder table Newer quarter: Q4 2023 Previous quarter: Q2 2023 2seventy bio, Inc. SEC filings 2seventy bio, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 901384107

Newer quarter: Q4 2023 Previous quarter: Q2 2023

Recent filing periods:

Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024

Ownership snapshot

Top shareholders of TSVT - 2seventy bio, Inc. - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder

Kynam Capital Management, LP

13D/G signal

—

Evidence rows

Latest as of

10 Aug 2023

3/4/5 13F Lead comparable stake: 9.3% Showing first 8 of 50 holder rows. Open remaining rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Kynam Capital Management, LP	3/4/5 13F 10%+ Owner · Company 3/4/5 13F	9.3% from 13F	$61,293,964 10,284,222 shares	—	10 Aug 2023
BlackRock Finance, Inc.	13F Company 13F	7.9%	$41,848,061 4,135,184 shares	—	30 Jun 2023
VANGUARD GROUP INC	13F Company 13F	6.6%	$35,194,061 3,477,674 shares	—	30 Jun 2023
STATE STREET CORP	13F Company 13F	5.8%	$30,969,285 3,060,206 shares	—	30 Jun 2023
MILLENNIUM MANAGEMENT LLC	13F Company 13F	5.5%	$29,302,217 2,895,476 shares	—	30 Jun 2023
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	5.5%	$29,144,811 2,879,922 shares	—	30 Jun 2023
BAKER BROS. ADVISORS LP	13F Company 13F	4.8%	$25,274,963 2,497,526 shares	—	30 Jun 2023
ORBIMED ADVISORS LLC	13F Company 13F	4.6%	$24,203,275 2,391,628 shares	—	30 Jun 2023

Show 42 additional holder rows in the full holder list

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Casdin Capital, LLC	13F Company 13F	3.9%	$20,482,000 2,023,913 shares	—	30 Jun 2023
GOLDMAN SACHS GROUP INC	13F Company 13F	3.1%	$16,437,430 1,624,252 shares	—	30 Jun 2023
ExodusPoint Capital Management, LP	13F Company 13F	2.8%	$14,749,000 1,457,390 shares	—	30 Jun 2023
Bain Capital Life Sciences Investors, LLC	13F Company 13F	2.7%	$14,258,078 1,408,901 shares	—	30 Jun 2023
Avidity Partners Management LP	13F Company 13F	2.6%	$13,581,040 1,342,000 shares	—	30 Jun 2023
Point72 Asset Management, L.P.	13F Company 13F	2.4%	$12,922,754 1,276,952 shares	—	30 Jun 2023
JPMORGAN CHASE & CO	13F Company 13F	2.2%	$11,862,806 1,172,214 shares	—	30 Jun 2023
CREDIT SUISSE AG/	13F Company 13F	1.9%	$10,332,044 1,020,953 shares	—	30 Jun 2023
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	1.9%	$9,950,247 983,226 shares	—	30 Jun 2023
CHI Advisors LLC	13F Company 13F	1.6%	$8,622,311 852,007 shares	—	30 Jun 2023
MORGAN STANLEY	13F Company 13F	1.5%	$7,864,465 777,121 shares	—	30 Jun 2023
Newtyn Management, LLC	13F Company 13F	1.4%	$7,465,969 737,744 shares	—	30 Jun 2023
CLOUGH CAPITAL PARTNERS L P	13F Company 13F	1%	$5,354,593 529,110 shares	—	30 Jun 2023
JACOBS LEVY EQUITY MANAGEMENT, INC	13F Company 13F	0.99%	$5,275,192 521,264 shares	—	30 Jun 2023
DAFNA Capital Management LLC	13F Company 13F	0.95%	$5,023,730 496,416 shares	—	30 Jun 2023
SECTORAL ASSET MANAGEMENT INC	13F Company 13F	0.88%	$4,680,348 462,485 shares	—	30 Jun 2023
Boxer Capital, LLC	13F Company 13F	0.88%	$4,654,000 459,836 shares	—	30 Jun 2023
NORTHERN TRUST CORP	13F Company 13F	0.87%	$4,633,483 457,854 shares	—	30 Jun 2023
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F Company 13F	0.8%	$4,228,429 417,829 shares	—	30 Jun 2023
FMR LLC	13F Company 13F	0.61%	$3,217,249 317,910 shares	—	30 Jun 2023
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	0.59%	$3,149,627 311,246 shares	—	30 Jun 2023
Bleichroeder LP	13F Company 13F	0.49%	$2,582,928 255,230 shares	—	30 Jun 2023
TANG CAPITAL MANAGEMENT LLC	13F Company 13F	0.48%	$2,530,000 250,000 shares	—	30 Jun 2023
Rafferty Asset Management, LLC	13F Company 13F	0.44%	$2,337,093 230,938 shares	—	30 Jun 2023
Mirae Asset Global Investments Co., Ltd.	13F Company 13F	0.42%	$2,240,373 221,490 shares	—	30 Jun 2023
CITADEL ADVISORS LLC	13F Company 13F	0.39%	$2,065,583 204,109 shares	—	30 Jun 2023
MOORE CAPITAL MANAGEMENT, LP	13F Company 13F	0.38%	$2,024,000 200,000 shares	—	30 Jun 2023
Polar Asset Management Partners Inc.	13F Company 13F	0.38%	$2,006,796 198,300 shares	—	30 Jun 2023
Bank of New York Mellon Corp	13F Company 13F	0.35%	$1,864,302 184,220 shares	—	30 Jun 2023
AlphaCentric Advisors LLC	13F Company 13F	0.34%	$1,821,600 180,000 shares	—	30 Jun 2023
Weiss Asset Management LP	13F Company 13F	0.31%	$1,638,863 161,943 shares	—	30 Jun 2023
BANK OF AMERICA CORP /DE/	13F Company 13F	0.29%	$1,518,273 150,027 shares	—	30 Jun 2023
BARCLAYS PLC	13F Company 13F	0.23%	$1,242,513 122,778 shares	—	30 Jun 2023
TWO SIGMA INVESTMENTS, LP	13F Company 13F	0.22%	$1,168,314 115,446 shares	—	30 Jun 2023
Lion Point Capital, LP	13F Company 13F	0.21%	$1,130,070 111,667 shares	—	30 Jun 2023
PRUDENTIAL FINANCIAL INC	13F Company 13F	0.19%	$1,011,656 99,966 shares	—	30 Jun 2023
Swiss National Bank	13F Company 13F	0.19%	$994,816 98,302 shares	—	30 Jun 2023
Jackson Creek Investment Advisors LLC	13F Company 13F	0.19%	$991,000 97,946 shares	—	30 Jun 2023
Nuveen Asset Management, LLC	13F Company 13F	0.19%	$990,869 97,912 shares	—	30 Jun 2023
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F Company 13F	0.17%	$904,100 89,338 shares	—	30 Jun 2023
CITIGROUP INC	13F Company 13F	0.16%	$864,754 85,450 shares	—	30 Jun 2023
UBS Group AG	13F Company 13F	0.16%	$834,212 82,432 shares	—	30 Jun 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

140

54,800,462

Rows loaded

141

Investor	Option	Weight %	Change %	Reported value	* Price	Shares	Share Change	Activity	Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.

Compare Q3 2023 vs Q2 2023 Across Filers

Q2 2023 holders

145

Q3 2023 holders

140

Holder diff

-5

Investor	Q2 2023 Shares	Q3 2023 Shares	Share Diff	Share Chg %	Q2 2023 value	Q3 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend