Security key
05455M100
- Security type / class
- Equity / COM
- Total 13F shares
- 19,934,843
- Total 13F value
- $18,936,992
- Share change
- -2,906,842
- Put/Call ratio
- 0%
- SEC-reported price per share
- $0.95
- Number of holders
- 41
- Value change
- -$2,850,098
- Number of buys
- 12
- Number of sells
- 21
Open additional details 1 more signal available
Report period
Q2 2023
Institutions
41
Top holders
10
AVRO full security history
Ownership snapshot
Full 13F holder table
Tectonic Therapeutic, Inc. SEC filings
Tectonic Therapeutic, Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of AVRO - AVROBIO INC - COM (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
Atlas Venture Life Scienc...
Disclosed value leader
Atlas Venture Life Scienc...
Comparable rows
0/15
Latest evidence
31 Mar 2023
13F
3/4/5
Highest disclosed value: $4,541,381
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
Atlas Venture Life Science Advisors, LLC has the largest disclosed position value at $4.54M.
0 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 Atlas Venture Life Science Advisors, LLC's linked filing trail.
Disclosed position value
Top 5
Atlas Venture Life Science Adviso...
$4.54M
GMT CAPITAL CORP
$4.36M
FARALLON CAPITAL MANAGEMENT, L.L.C.
$3.12M
ACADIAN ASSET MANAGEMENT LLC
$1.77M
BlackRock Finance, Inc.
$1.39M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC |
13F
Company
|
—
denominator unverified
|
$4,541,381
4,541,381 shares
|
— | 31 Mar 2023 |
| GMT CAPITAL CORP |
13F
Company
|
—
denominator unverified
|
$4,357,859
4,357,859 shares
|
— | 31 Mar 2023 |
| FARALLON CAPITAL MANAGEMENT, L.L.C. |
13F
Company
|
—
denominator unverified
|
$3,116,000
3,116,000 shares
|
— | 31 Mar 2023 |
| ACADIAN ASSET MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$1,768,000
1,770,147 shares
|
— | 31 Mar 2023 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$1,393,369
1,393,369 shares
|
— | 31 Mar 2023 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$1,181,134
1,181,134 shares
|
— | 31 Mar 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 Q2 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
41
Shares
19,934,843
Rows available
41
| 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 Q2 2023 vs Q1 2023 Across Filers
Q1 2023 holders
47
Q2 2023 holders
41
Holder diff
-6
| Investor | Q1 2023 Shares | Q2 2023 Shares | Share Diff | Share Chg % | Q1 2023 value | Q2 2023 value | Value change | Value Chg % |
|---|