Security key
045396108
ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 (ASMB)
CUSIP: 045396108
Q3 2021 13F Holders as of 30 Sep 2021
- Security type / class
- Equity / Common Stock, par value $0.001
- Total 13F shares
- 22,706,616
- Total 13F value
- $79,015,136
- Share change
- -4,000,775
- Put/Call ratio
- 110%
- SEC-reported price per share
- $3.48
- Number of holders
- 61
- Value change
- -$15,483,325
- Number of buys
- 28
- Number of sells
- 50
- Shares outstanding
- 19,829,040
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
Q3 2021
Institutions
61
Top holders
10
ASMB full security history
Ownership snapshot
Full 13F holder table
ASSEMBLY BIOSCIENCES, INC. SEC filings
ASSEMBLY BIOSCIENCES, INC. company facts
Broader feeds
Ownership snapshot
Top reported holders of ASMB - ASSEMBLY BIOSCIENCES, INC. - Common Stock, par value $0.001 (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
Alerce Investment Managem...
Disclosed value leader
Alerce Investment Managem...
Comparable rows
15/15
Latest evidence
30 Jun 2021
13F
Lead comparable stake: 11%
Showing 1-6 of 15 holder rows.
Quick read
Alerce Investment Management, L.P. leads the comparable SEC ownership view at 11%.
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 Alerce Investment Management, L.P.'s linked filing trail.
Comparable ownership
Top 5
Alerce Investment Management, L.P.
11%
ARMISTICE CAPITAL, LLC
11%
BAKER BROS. ADVISORS LP
11%
BlackRock Finance, Inc.
9.6%
VANGUARD GROUP INC
9.5%
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 |
|---|---|---|---|---|---|
| Alerce Investment Management, L.P. |
13F
Company
|
11%
|
$8,643,000
2,227,500 shares
|
— | 30 Jun 2021 |
| ARMISTICE CAPITAL, LLC |
13F
Company
|
11%
|
$8,629,000
2,224,000 shares
|
— | 30 Jun 2021 |
| BAKER BROS. ADVISORS LP |
13F
Company
|
11%
|
$8,181,000
2,108,621 shares
|
— | 30 Jun 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
9.6%
|
$7,418,000
1,912,094 shares
|
— | 30 Jun 2021 |
| VANGUARD GROUP INC |
13F
Company
|
9.5%
|
$7,309,000
1,883,644 shares
|
— | 30 Jun 2021 |
| PLATINUM INVESTMENT MANAGEMENT LTD |
13F
Company
|
8.3%
|
$6,414,000
1,653,009 shares
|
— | 30 Jun 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 Q3 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
61
Shares
22,706,616
Rows available
61
| 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 Q3 2021 vs Q2 2021 Across Filers
Q2 2021 holders
87
Q3 2021 holders
61
Holder diff
-26
| Investor | Q2 2021 Shares | Q3 2021 Shares | Share Diff | Share Chg % | Q2 2021 value | Q3 2021 value | Value change | Value Chg % |
|---|