Security key
046513107
Atara Biotherapeutics, Inc. - Common Stock, par value $0.0001 per share (ATRA)
CUSIP: 046513107
Q3 2017 13F Holders as of 30 Sep 2017
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 26,588,544
- Total 13F value
- $441,130,415
- Share change
- +846,343
- Put/Call ratio
- 1.1%
- SEC-reported price per share
- $16.55
- Number of holders
- 80
- Value change
- +$15,294,795
- Number of buys
- 37
- Number of sells
- 31
- Shares outstanding
- 9,606,000
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 2017
Institutions
80
Top holders
10
ATRA full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q4 2017
Previous quarter: Q2 2017
Atara Biotherapeutics, Inc. SEC filings
Atara Biotherapeutics, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 046513107
Recent filing periods:
Ownership snapshot
Top reported holders of ATRA - Atara Biotherapeutics, 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
BAUPOST GROUP LLC/MA
Disclosed value leader
BAUPOST GROUP LLC/MA
Comparable rows
15/15
Latest evidence
30 Jun 2017
13F
Lead comparable stake: 56%
Showing 1-6 of 15 holder rows.
Quick read
BAUPOST GROUP LLC/MA leads the comparable SEC ownership view at 56%.
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 BAUPOST GROUP LLC/MA's linked filing trail.
Comparable ownership
Top 5
BAUPOST GROUP LLC/MA
56%
Redmile Group, LLC
28%
ArrowMark Colorado Holdings LLC
22%
BlackRock Finance, Inc.
20%
FMR LLC
20%
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 |
|---|---|---|---|---|---|
| BAUPOST GROUP LLC/MA |
13F
Company
|
56%
|
$75,035,000
5,359,632 shares
|
— | 30 Jun 2017 |
| Redmile Group, LLC |
13F
Company
|
28%
|
$38,277,000
2,734,044 shares
|
— | 30 Jun 2017 |
| ArrowMark Colorado Holdings LLC |
13F
Company
|
22%
|
$29,162,000
2,083,017 shares
|
— | 30 Jun 2017 |
| BlackRock Finance, Inc. |
13F
Company
|
20%
|
$26,929,000
1,923,515 shares
|
— | 30 Jun 2017 |
| FMR LLC |
13F
Company
|
20%
|
$26,689,000
1,906,368 shares
|
— | 30 Jun 2017 |
| BRIDGER MANAGEMENT, LLC |
13F
Company
|
16%
|
$21,339,000
1,524,191 shares
|
— | 30 Jun 2017 |
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 2017
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
80
Shares
26,588,544
Rows available
80
| 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 2017 vs Q2 2017 Across Filers
Q2 2017 holders
80
Q3 2017 holders
80
Holder diff
0
| Investor | Q2 2017 Shares | Q3 2017 Shares | Share Diff | Share Chg % | Q2 2017 value | Q3 2017 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend