13F Filings History of CASTLEARK MANAGEMENT LLC

Latest 13F report
Q4 2025 - 13 Feb 2026
Value $
$3,406,475,013
Signature - Title
James Castellini - Chief Legal Officer
Location
Chicago, IL
Summary
This page shows a list of all the recent 13F filings made by CASTLEARK MANAGEMENT LLC. Form 13F is required to be filed within 45 days of the end of a calendar quarter. CASTLEARK MANAGEMENT LLC reported 294 stock holdings with total value $3,406,475,013 as of Q4 2025. Top holdings included NVDA, MSFT, GOOGL, AMZN, and AAPL.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q4 2025 294 $3,406,475,013 +$616,235,650 -$815,004,004 -$198,768,354 NVDA, MSFT, GOOGL, AMZN, AAPL 13F-HR 12 Feb 2026, 17:34
Q3 2025 284 $3,566,578,866 +$708,506,644 -$712,668,676 -$4,162,032 CARK, NVDA, MSFT, META, AAPL 13F-HR 14 Nov 2025, 19:45
Q2 2025 275 $3,327,453,127 +$806,519,235 -$735,727,673 +$70,791,562 CARK, NVDA, MSFT, AMZN, META 13F-HR 15 Aug 2025, 21:13
Q1 2025 280 $2,885,411,044 +$843,611,863 -$630,127,142 +$213,484,721 CARK, AAPL, NVDA, AMZN, MSFT 13F-HR 15 May 2025, 17:17
Q4 2024 283 $2,867,118,014 +$1,078,755,572 -$763,478,680 +$315,276,892 AAPL, NVDA, MSFT, SPIB, AMZN 13F-HR 14 Feb 2025, 19:02
Q3 2024 272 $2,453,158,640 +$464,162,041 -$529,903,991 -$65,741,950 MSFT, NVDA, AAPL, AMZN, GOOGL 13F-HR 14 Nov 2024, 21:07
Q2 2024 271 $2,448,192,267 +$484,261,594 -$371,518,222 +$112,743,372 NVDA, MSFT, AAPL, AMZN, GOOGL 13F-HR 13 Aug 2024, 21:27
Q1 2024 278 $2,403,800,269 +$271,846,435 -$441,075,184 -$169,228,749 MSFT, NVDA, AAPL, AMZN, META 13F-HR 15 May 2024, 19:38
Q4 2023 281 $2,256,074,382 +$432,060,931 -$379,751,368 +$52,309,563 MSFT, AAPL, NVDA, AMZN, GOOGL 13F-HR 14 Feb 2024, 20:58
Q3 2023 274 $1,962,630,035 +$320,477,119 -$491,326,633 -$170,849,514 MSFT, AAPL, NVDA, MA, GOOGL 13F-HR 15 Nov 2023, 17:23
Q2 2023 274 $2,207,842,110 +$494,592,363 -$509,239,085 -$14,646,722 MSFT, AAPL, NVDA, MA, NOW 13F-HR 15 Aug 2023, 17:41
Q1 2023 272 $2,035,704,770 +$453,466,072 -$492,294,370 -$38,828,298 AAPL, MSFT, MA, NVDA, GOOGL 13F-HR 15 May 2023, 20:28
Q4 2022 282 $1,914,411,386 +$419,997,018 -$417,442,991 +$2,554,027 AAPL, MSFT, MA, V, GOOGL 13F-HR 09 Feb 2023, 21:26
Q3 2022 284 $1,797,014,000 +$374,251,232 -$331,111,084 +$43,140,148 MSFT, AAPL, MA, GOOGL, LLY 13F-HR 15 Nov 2022, 15:20
Q2 2022 306 $1,868,604,000 +$385,893,118 -$395,485,445 -$9,592,327 MSFT, AAPL, GOOGL, MA, ULTA 13F-HR 15 Aug 2022, 19:57
Q1 2022 321 $2,317,255,000 +$367,832,565 -$617,065,884 -$249,233,319 MSFT, AAPL, GOOGL, NVDA, MA 13F-HR 16 May 2022, 14:57
Q4 2021 326 $2,720,063,000 +$500,445,213 -$589,885,169 -$89,439,956 MSFT, AAPL, GOOGL, NVDA, MA 13F-HR 15 Feb 2022, 21:02
Q3 2021 328 $2,615,370,000 +$383,598,934 -$678,349,424 -$294,750,490 MSFT, AAPL, AMZN, MA, META 13F-HR 10 Nov 2021, 20:11
Q2 2021 335 $2,976,955,000 +$436,068,255 -$489,670,367 -$53,602,112 MSFT, AAPL, AMZN, META, NVDA 13F-HR 16 Aug 2021, 19:41
Q1 2021 330 $2,777,282,000 +$551,500,475 -$597,268,122 -$45,767,647 MSFT, AAPL, AMZN, LRCX, META 13F-HR 14 May 2021, 17:15
Q4 2020 328 $2,671,420,000 +$367,897,144 -$692,948,201 -$325,051,057 MSFT, AAPL, AMZN, META, NKE 13F-HR 16 Feb 2021, 21:01
Q3 2020 343 $2,551,965,000 +$663,640,952 -$567,357,322 +$96,283,630 AAPL, MSFT, AMZN, META, NVDA 13F-HR 13 Nov 2020, 19:47
Q2 2020 334 $2,299,437,000 +$924,784,158 -$820,011,862 +$104,772,296 MSFT, AAPL, AMZN, GOOG, NVDA 13F-HR 14 Aug 2020, 14:18
Q1 2020 336 $1,688,859,000 +$465,634,491 -$891,281,329 -$425,646,838 MSFT, AMZN, AAPL, GLD, GOOG 13F-HR 13 May 2020, 17:25
Q4 2019 341 $2,498,906,000 +$604,357,436 -$758,169,592 -$153,812,156 MSFT, AAPL, TLT, GOOG, TXN 13F-HR 14 Feb 2020, 17:15
Q3 2019 350 $2,451,479,000 +$659,791,060 -$791,854,350 -$132,063,290 MSFT, TLT, AMZN, AAPL, GOOG 13F-HR 14 Nov 2019, 20:24
Q2 2019 347 $2,606,616,000 +$742,000,555 -$908,025,141 -$166,024,586 MSFT, AMZN, TLT, V, MRK 13F-HR 13 Aug 2019, 12:26
Q1 2019 360 $2,656,611,000 +$774,506,333 -$784,408,621 -$9,902,288 EEM, AMZN, MSFT, TLT, GOOG 13F-HR 14 May 2019, 15:30
Q4 2018 365 $2,346,731,000 +$511,723,873 -$1,082,783,712 -$571,059,839 AMZN, MSFT, GOOG, V, TLT 13F-HR 12 Feb 2019, 14:29
Q3 2018 369 $3,479,930,000 +$797,456,725 -$832,161,546 -$34,704,821 AAPL, AMZN, MSFT, UNH, ABMD 13F-HR 14 Nov 2018, 18:18
Q2 2018 369 $3,248,769,000 +$904,667,974 -$1,033,035,387 -$128,367,413 AMZN, ABMD, UNH, MSFT, AAPL 13F-HR 15 Aug 2018, 15:22
Q1 2018 403 $3,157,779,000 +$631,731,699 -$975,600,020 -$343,868,321 ABMD, MSFT, AMZN, SCHW, TLT 13F-HR 14 May 2018, 18:17
Q4 2017 402 $3,330,814,000 +$695,502,929 -$783,036,583 -$87,533,654 MSFT, AMZN, SCHW, EEM, C 13F-HR 14 Feb 2018, 19:26
Q3 2017 385 $3,185,869,000 +$793,469,405 -$871,712,615 -$78,243,210 EEM, ABMD, META, MSFT, V 13F-HR 14 Nov 2017, 17:50
Q2 2017 388 $3,059,720,000 +$725,386,712 -$969,494,568 -$244,107,856 EEM, UNH, AMZN, C, HD 13F-HR 14 Aug 2017, 20:42
Q1 2017 367 $3,191,204,000 +$727,537,092 -$873,423,405 -$145,886,313 EEM, HD, ADBE, MCHP, GOOG 13F-HR 15 May 2017, 14:46
Q4 2016 371 $3,135,260,000 +$866,757,232 -$1,027,767,176 -$161,009,944 HD, MSFT, EOG, UNH, EEM 13F-HR 15 Feb 2017, 15:08
Q3 2016 372 $3,306,159,000 +$814,064,809 -$835,751,180 -$21,686,371 EW, HD, EOG, V, ADBE 13F-HR 14 Nov 2016, 20:48
Q2 2016 373 $3,135,064,000 +$631,662,112 -$822,145,759 -$190,483,647 ULTA, UNH, HD, GE, CRM 13F-HR 09 Aug 2016, 20:21
Q1 2016 367 $3,202,024,000 +$914,196,348 -$1,022,464,829 -$108,268,481 GOOG, GE, HD, ULTA, NKE 13F-HR 16 May 2016, 18:22
Q4 2015 387 $3,327,543,000 +$963,538,771 -$836,810,542 +$126,728,229 EFA, META, RHT, SCHW, V 13F-HR 16 Feb 2016, 18:53
Q3 2015 364 $3,107,572,000 +$745,626,737 -$1,088,651,798 -$343,025,061 DIS, NXPI, META, EFA, RHT 13F-HR 16 Nov 2015, 19:58
Q2 2015 369 $3,743,406,000 +$791,120,673 -$1,259,764,376 -$468,643,703 META, AAPL, DIS, HD, SCHW 13F-HR 14 Aug 2015, 21:05
Q1 2015 356 $4,145,355,000 +$1,369,347,593 -$1,227,677,310 +$141,670,283 NXPI, MDT, 3106PS, AAPL, META 13F-HR 14 May 2015, 21:07
Q4 2014 341 $3,881,115,000 +$2,325,061,978 -$1,568,765,250 +$756,296,728 NXPI, META, AAPL, M, RHT 13F-HR 09 Feb 2015, 21:33
Q3 2014 309 $2,381,258,000 +$784,653,087 -$892,961,327 -$108,308,240 HD, TJX, PH, COST, BWA 13F-HR 14 Nov 2014, 20:41
Q2 2014 318 $3,628,476,000 +$1,297,500,027 -$1,106,924,420 +$190,575,607 INTC, HD, SWN, EOG, UNP 13F-HR 15 Aug 2014, 12:22
Q1 2014 309 $3,516,940,000 +$1,048,391,170 -$980,494,851 +$67,896,319 SWN, HD, EOG, TJX, PH 13F-HR 20 May 2014, 14:27
Q4 2013 314 $3,445,008,000 +$2,057,717,995 -$1,189,911,412 +$867,806,583 GILD, TJX, PH, HD, COST 13F-HR 20 Feb 2014, 14:33
Q3 2013 343 $1,639,872,000 $0 $0 $0 EEM, STJ, GOOG, SWN, SSYS Restatement 21 Nov 2014, 16:24