Atika Capital Management LLC
CIK 1599731
13F filing for Q2 2026・No. 1,978
- Holdings
- US$1.52B
- Quarter change
- +US$725.11M
- Entries
- 243
- Net bought (estimate)
- +US$236.02M
The quarter change is the holdings' value against the quarter before, price moves included — not what was bought or sold; each institution's page estimates that.
Net bought (estimate)
Each stock's change in shares at the quarter-end price, added up: a new position counts as bought, one sold out as sold, shares held long only. Splits are compared split-adjusted; corporate actions under a new CUSIP are not estimated. An estimate from the filings, not actual trades.
- New 29
- Sold out 19
- Cut 10
- Added 14
- Corporate actions 0
- Unchanged 9
Largest holdings
62 stocks worth US$1.01B, options and bonds left out.
| Stock | This quarter | Shares | Value | Weight |
|---|---|---|---|---|
| VRTVERTIV HOLDINGS COCOM CL A | Unchanged | 666,100 | US$223.02M | 22.13% |
| STXSEAGATE TECHNOLOGY HLDNGS PLORD SHS | Added | 79,865 | US$77.07M | 7.65% |
| AMDAMDCOM | New | 95,500 | US$55.48M | 5.50% |
| LLYELI LILLY & COCOM | Unchanged | 41,100 | US$49.3M | 4.89% |
| INTCINTEL CORPCOM | New | 264,000 | US$36.86M | 3.66% |
| ECHOECHOSTAR CORPCL A | Added | 331,400 | US$33.64M | 3.34% |
| GHGUARDANT HEALTH INCCOM | Added | 181,000 | US$27.16M | 2.69% |
| CIENCIENA CORPCOM NEW | Added | 48,768 | US$23.92M | 2.37% |
| ISRGINTUITIVE SURGICAL INCCOM NEW | Unchanged | 57,216 | US$22.75M | 2.26% |
| VISHAY PRECISION GROUP INCCOM | New | 118,000 | US$17.69M | 1.76% |
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Filings
The quarter's original 13F filings (SEC).
- 13F-HRFiled August 13, 2026SEC ↗
13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.