Security key
901384107
2seventy bio, Inc. - Common Stock, par value $0.0001 per share (TSVT)
CUSIP: 901384107
Q1 2022 13F Holders as of 31 Mar 2022
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 31,860,508
- Total 13F value
- $543,474,449
- Share change
- +13,162,256
- Put/Call ratio
- 0%
- SEC-reported price per share
- $17.06
- Number of holders
- 116
- Value change
- +$220,494,653
- Number of buys
- 61
- Number of sells
- 48
- Shares outstanding
- 52,406,487
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2022
Institutions
116
Top holders
10
TSVT full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
2seventy bio, Inc. SEC filings
2seventy bio, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 901384107
Recent filing periods:
Ownership snapshot
Top reported holders 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.
Comparable stake leader
STATE STREET CORP
Disclosed value leader
STATE STREET CORP
Comparable rows
15/15
Latest evidence
31 Dec 2021
13F
Lead comparable stake: 4.5%
Showing 1-6 of 15 holder rows.
Quick read
STATE STREET CORP leads the comparable SEC ownership view at 4.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens STATE STREET CORP's linked filing trail.
Comparable ownership
Top 5
STATE STREET CORP
4.5%
WELLINGTON MANAGEMENT GROUP LLP
4%
EcoR1 Capital, LLC
3.7%
VANGUARD GROUP INC
3.5%
BlackRock Finance, Inc.
3.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| STATE STREET CORP |
13F
Company
|
4.5%
|
$60,598,000
2,364,351 shares
|
— | 31 Dec 2021 |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
Company
|
4%
|
$53,573,000
2,090,255 shares
|
— | 31 Dec 2021 |
| EcoR1 Capital, LLC |
13F
Company
|
3.7%
|
$49,134,000
1,917,063 shares
|
— | 31 Dec 2021 |
| VANGUARD GROUP INC |
13F
Company
|
3.5%
|
$47,670,000
1,859,949 shares
|
— | 31 Dec 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
3.1%
|
$41,076,000
1,602,683 shares
|
— | 31 Dec 2021 |
| ARMISTICE CAPITAL, LLC |
13F
Company
|
1.6%
|
$21,939,000
856,000 shares
|
— | 31 Dec 2021 |
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 Q1 2022
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
116
Shares
31,860,508
Rows available
116
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-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. The marker flags a reported price that did not pass the local price check.
Compare Q1 2022 vs Q3 2025 Across Filers
Q3 2025 holders
0
Q1 2022 holders
116
Holder diff
116
| Investor | Q3 2025 Shares | Q1 2022 Shares | Share Diff | Share Chg % | Q3 2025 value | Q1 2022 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend