AiSiWhale

AI & tech investing

CASTLEARK MANAGEMENT LLC

CIK 1106832

13F filing for Q2 2026・No. 1,122

Holdings
US$3.71B
Quarter change
+US$687.16M
Entries
309
Net bought (estimate)
+US$166.65M

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 59
  • Sold out 42
  • Cut 89
  • Added 68
  • Corporate actions 0
  • Unchanged 93

Largest holdings

309 stocks worth US$3.71B, options and bonds left out.

StockThis quarterValueWeight
NVDANvidiaCOMAddedUS$260.04M7.01%
GOOGLAlphabetCAP STK CL AAddedUS$181.22M4.89%
AAPLAppleCOMAddedUS$136.61M3.68%
LRCXLAM RESEARCH CORPCOM NEWCutUS$122.98M3.32%
MSFTMicrosoftCOMAddedUS$109.21M2.94%
LLYELI LILLY & COCOMAddedUS$105.19M2.84%
AVGOBroadcomCOMAddedUS$92.13M2.48%
SPDR SERIES TRUSTST INTER BD ETFUnchangedUS$89.95M2.43%
VVISA INCCOM CL AAddedUS$81.03M2.18%
ANETARISTA NETWORKS INCCOM SHSAddedUS$80.41M2.17%

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Filings

The quarter's original 13F filings (SEC).

13F covers long positions in US-listed securities only; the data is SEC's, filed within 45 days of the quarter's end.

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Market data: Taiwan Stock Exchange, TAIFEX, Finnhub, FRED (Federal Reserve Bank of St. Louis), Tiingo, CoinGecko.

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Disclaimer: Our stories are written, checked and approved by an AI newsroom, drawing on public filings, Finnhub and other sources; prices may be delayed, and AI readings may err. For reference only, not investment advice — invest with care.