Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

Atika Capital Management LLC 13F Holdings -- Portfolio & Top Positions (2026-03-31)

Atika Capital Management LLC (CIK 1599731) reported $796.4M across 48 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: VRT ($166.9M, 20.96%), XBI ($54.0M, 6.78%), SATS ($39.8M, 5.00%), LLY ($37.8M, 4.75%), NFLX ($33.2M, 4.17%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1VRTVERTIV HOLDINGS CO$166.9M20.96%666,100Added
2XBISPDR SERIES TRUST$54.0M6.78%4,225Trimmed
3SATSECHOSTAR CORP$39.8M5.00%183,583Added
4LLYELI LILLY & CO$37.8M4.75%41,100Hold
5NFLXNETFLIX INC.$33.2M4.17%181,650Added
6SMHVANECK ETF TRUST$27.6M3.47%720New
7ISRGINTUITIVE SURGICAL INC$26.4M3.31%57,216Hold
8IWMISHARES TR$24.8M3.11%1,000Added
9GDXVANECK ETF TRUST$21.1M2.65%81,500New
10STXSEAGATE TECHNOLOGY HLDNGS PL$21.0M2.63%53,500Added
11TERNTERNS PHARMACEUTICALS INC$19.6M2.46%300,720Trimmed
12MTZMASTEC INC$18.5M2.33%57,636Added
13CIENCIENA CORP$16.9M2.13%43,651Trimmed
14BWXTBWX TECHNOLOGIES INC$16.9M2.12%82,550Trimmed
15TEVATEVA PHARMACEUTICAL INDS LTD$14.4M1.80%477,000Trimmed
16NETCLOUDFLARE INC$13.4M1.68%65,000Added
17GOOGALPHABET INC$12.4M1.56%43,250Added
18COGTCOGENT BIOSCIENCES INC$11.3M1.42%293,200Trimmed
19ORKAORUKA THERAPEUTICS INC$11.3M1.42%229,900New
20DNTHDIANTHUS THERAPEUTICS INC$10.8M1.36%128,800Trimmed
21WDCWESTERN DIGITAL CORP$10.2M1.28%37,717New
22TTMITTM TECHNOLOGIES INC$9.1M1.14%93,000Trimmed
23AMZNAMAZON COM INC$9.1M1.14%43,700Trimmed
24FIVEFIVE BELOW INC$9.0M1.13%39,480Trimmed
25CWCURTISS WRIGHT CORP$8.9M1.11%13,000Added

Source: SEC Form 13F filings · as of 2026-03-31