Atara Biotherapeutics
ATRA
ATRA
37 hedge funds and large institutions have $12.4M invested in Atara Biotherapeutics in 2025 Q1 according to their latest regulatory filings, with 5 funds opening new positions, 8 increasing their positions, 13 reducing their positions, and 11 closing their positions.
New
Increased
Maintained
Reduced
Closed
less ownership
Funds ownership: →
less funds holding
Funds holding: →
less repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
less first-time investments, than exits
New positions opened: | Existing positions closed:
61% less capital invested
Capital invested by funds: $31.5M → $12.4M (-$19.1M)
Holders
37
Holding in Top 10
–
Calls
–
Puts
–
Top Buyers
| 1 | +$244K | |
| 2 | +$244K | |
| 3 | +$178K | |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$140K |
| 5 |
GCP
GSA Capital Partners
London,
United Kingdom
|
+$115K |
Top Sellers
| 1 | -$3.56M | |
| 2 | -$332K | |
| 3 | -$295K | |
| 4 |
VPC
Vestal Point Capital
New York
|
-$184K |
| 5 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
-$169K |