13F Filings History of BLAIR WILLIAM & CO/IL

Latest 13F report
Q4 2025 - 17 Feb 2026
Value $
$37,259,505,965
Signature - Title
Ryan DeVore - Partner, Head of Private Wealth Management
Location
Chicago, IL
Summary
This page shows a list of all the recent 13F filings made by BLAIR WILLIAM & CO/IL. Form 13F is required to be filed within 45 days of the end of a calendar quarter. BLAIR WILLIAM & CO/IL reported 1867 stock holdings with total value $37,259,505,965 as of Q4 2025. Top holdings included MSFT, AAPL, AMZN, NVDA, and GOOG.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q4 2025 1,867 $37,259,505,965 +$1,717,301,609 -$1,486,170,128 +$231,131,481 MSFT, AAPL, AMZN, NVDA, GOOG 13F-HR 17 Feb 2026, 06:09
Q3 2025 1,844 $37,569,258,454 +$1,258,857,791 -$1,367,266,736 -$108,408,945 MSFT, AAPL, AMZN, NVDA, GOOG 13F-HR 12 Nov 2025, 09:45
Q2 2025 1,824 $36,002,454,589 +$1,362,858,023 -$1,275,801,841 +$87,056,182 MSFT, AMZN, AAPL, NVDA, V 13F-HR 24 Jul 2025, 10:03
Q1 2025 1,801 $33,154,203,754 +$1,242,653,382 -$1,287,782,118 -$45,128,736 MSFT, AAPL, AMZN, V, NVDA 13F-HR 09 May 2025, 09:23
Q4 2024 1,816 $34,376,594,931 +$1,398,618,549 -$1,189,077,098 +$209,541,451 MSFT, AAPL, AMZN, NVDA, V 13F-HR 12 Feb 2025, 08:45
Q3 2024 1,821 $34,048,702,314 +$1,377,322,100 -$1,221,630,946 +$155,691,154 MSFT, AAPL, AMZN, V, IDXX 13F-HR 12 Nov 2024, 09:19
Q2 2024 1,822 $32,420,545,494 +$2,225,777,599 -$816,431,697 +$1,409,345,902 MSFT, AAPL, AMZN, GOOG, V 13F-HR 12 Aug 2024, 09:20
Q1 2024 1,787 $31,838,490,579 +$1,055,563,607 -$751,512,531 +$304,051,076 MSFT, AMZN, AAPL, IDXX, DXCM 13F-HR 09 May 2024, 09:48
Q4 2023 1,785 $29,346,833,609 +$745,601,736 -$765,055,285 -$19,453,549 MSFT, AAPL, AMZN, IDXX, V 13F-HR 12 Feb 2024, 09:13
Q3 2023 1,791 $26,075,524,612 +$814,687,748 -$557,244,495 +$257,443,253 MSFT, AAPL, AMZN, IDXX, V 13F-HR 09 Nov 2023, 10:19
Q2 2023 1,809 $27,298,221,330 +$814,603,248 -$568,349,948 +$246,253,300 MSFT, AAPL, AMZN, IDXX, DXCM 13F-HR 11 Aug 2023, 08:47
Q1 2023 1,801 $25,029,837,493 +$922,499,650 -$786,528,848 +$135,970,802 AAPL, MSFT, IDXX, AMZN, DXCM 13F-HR 12 May 2023, 09:08
Q4 2022 1,814 $22,992,557,129 +$863,951,217 -$892,821,666 -$28,870,449 MSFT, AAPL, DXCM, IDXX, V 13F-HR 10 Feb 2023, 09:24
Q3 2022 1,813 $21,754,881,000 +$1,468,474,083 -$540,670,942 +$927,803,141 AAPL, MSFT, AMZN, DHR, V 13F-HR 09 Nov 2022, 14:20
Q2 2022 1,856 $22,531,941,000 +$1,490,211,782 -$1,094,548,315 +$395,663,467 MSFT, AAPL, AMZN, V, GOOG 13F-HR 10 Aug 2022, 09:55
Q1 2022 1,905 $28,517,420,000 +$1,192,571,920 -$1,370,735,162 -$178,163,242 AAPL, MSFT, AMZN, IDXX, DXCM 13F-HR 13 May 2022, 08:55
Q4 2021 1,961 $31,870,567,000 +$1,832,855,029 -$764,879,005 +$1,067,976,024 MSFT, AAPL, AMZN, IDXX, DXCM 13F-HR 14 Feb 2022, 10:56
Q3 2021 1,873 $29,366,543,000 +$1,068,161,541 -$615,971,828 +$452,189,713 MSFT, AAPL, AMZN, IDXX, DXCM 13F-HR 12 Nov 2021, 08:07
Q2 2021 1,882 $28,849,560,000 +$1,278,875,603 -$1,202,717,864 +$76,157,739 MSFT, AMZN, AAPL, IDXX, PYPL 13F-HR 12 Aug 2021, 11:43
Q1 2021 1,850 $26,497,138,000 +$1,302,782,380 -$2,237,087,643 -$934,305,263 MSFT, AAPL, AMZN, IDXX, PYPL 13F-HR 13 May 2021, 09:03
Q4 2020 1,817 $27,270,880,000 +$1,521,283,157 -$535,095,371 +$986,187,786 AAPL, AMZN, MSFT, IDXX, PYPL 13F-HR 09 Feb 2021, 09:19
Q3 2020 1,714 $23,576,410,000 +$1,999,919,608 -$718,582,615 +$1,281,336,993 AAPL, AMZN, MSFT, IDXX, VEEV 13F-HR 06 Nov 2020, 13:08
Q2 2020 1,673 $20,973,128,000 +$1,458,013,163 -$849,281,867 +$608,731,296 AAPL, AMZN, MSFT, V, IDXX 13F-HR 12 Aug 2020, 14:37
Q1 2020 1,651 $15,992,767,000 +$795,971,603 -$1,122,431,785 -$326,460,182 AAPL, MSFT, AMZN, V, IDXX 13F-HR 11 May 2020, 10:47
Q4 2019 1,720 $19,449,453,000 +$1,176,586,583 -$428,190,927 +$748,395,656 AAPL, MSFT, AMZN, V, IDXX 13F-HR 13 Feb 2020, 10:33
Q3 2019 1,686 $17,317,816,000 +$623,706,989 -$799,948,927 -$176,241,938 AAPL, MSFT, AMZN, V, IDXX 13F-HR 12 Nov 2019, 12:40
Q2 2019 1,722 $17,438,033,000 +$916,126,531 -$683,204,794 +$232,921,737 MSFT, AMZN, AAPL, V, IDXX 13F-HR 13 Aug 2019, 14:57
Q1 2019 1,698 $16,360,883,000 +$1,046,800,804 -$523,305,479 +$523,495,325 AAPL, MSFT, AMZN, V, IDXX 13F-HR 14 May 2019, 16:32
Q4 2018 1,645 $13,610,523,000 +$751,750,957 -$925,120,651 -$173,369,694 MSFT, AAPL, AMZN, V, IDXX 13F-HR 14 Feb 2019, 09:23
Q3 2018 1,604 $16,320,267,000 +$665,167,915 -$469,018,068 +$196,149,847 AAPL, AMZN, MSFT, V, IDXX 13F-HR 13 Nov 2018, 12:52
Q2 2018 1,569 $14,702,125,000 +$569,099,117 -$715,787,757 -$146,688,640 AAPL, AMZN, MSFT, V, IDXX 13F-HR 13 Aug 2018, 15:05
Q1 2018 1,490 $14,140,043,000 +$595,253,776 -$1,638,010,334 -$1,042,756,558 AAPL, AMZN, MSFT, V, IDXX 13F-HR 15 May 2018, 09:51
Q4 2017 1,341 $14,730,315,000 +$1,139,557,349 -$543,600,161 +$595,957,188 AAPL, V, AMZN, MSFT, IDXX 13F-HR 14 Feb 2018, 09:48
Q3 2017 1,343 $13,334,206,000 +$647,883,625 -$1,067,801,848 -$419,918,223 AAPL, V, IDXX, AMZN, MSFT 13F-HR 13 Nov 2017, 13:28
Q2 2017 1,477 $13,287,565,000 +$1,010,490,812 -$608,616,363 +$401,874,449 AAPL, IDXX, V, AMZN, MSFT 13F-HR 04 Aug 2017, 12:03
Q1 2017 1,342 $12,245,129,000 +$968,015,803 -$557,196,254 +$410,819,549 AAPL, IDXX, V, AMZN, SBUX 13F-HR 10 May 2017, 16:39
Q4 2016 1,297 $11,168,061,000 +$765,849,225 -$818,956,835 -$53,107,610 AAPL, IDXX, V, SBUX, AMZN 13F-HR 14 Feb 2017, 12:04
Q3 2016 1,259 $11,298,834,000 +$684,784,319 -$555,968,200 +$128,816,119 AAPL, IDXX, V, AMZN, SBUX 13F-HR 14 Nov 2016, 10:00
Q2 2016 1,228 $10,675,082,000 +$707,481,823 -$708,685,761 -$1,203,938 AAPL, IDXX, V, SBUX, GILD 13F-HR 08 Aug 2016, 12:31
Q1 2016 1,186 $10,621,328,000 +$774,254,490 -$708,709,822 +$65,544,668 AAPL, SBUX, V, GILD, IDXX 13F-HR 13 May 2016, 19:45
Q4 2015 1,212 $10,647,406,000 +$948,601,256 -$2,280,916,382 -$1,332,315,126 AAPL, GILD, SBUX, V, IDXX 13F-HR 12 Feb 2016, 19:14
Q3 2015 1,393 $11,558,404,000 +$373,942,491 -$51,125,817,169 -$50,751,874,678 AAPL, GILD, SBUX, V, IDXX 13F-HR 12 Nov 2015, 09:45
Q2 2015 2,187 $66,785,791,000 +$10,318,273,347 -$7,879,807,966 +$2,438,465,381 AMG, GILD, SAMSUNG ELECTRONICS CO LTD, SRCL, TENCENT HOLDINGS LTD 13F-HR 03 Aug 2015, 17:20
Q1 2015 2,130 $64,903,159,000 +$9,173,645,164 -$8,804,016,630 +$369,628,534 SRCL, AMG, SAMSUNG ELECTRONICS CO LTD, TENCENT HOLDINGS LTD, PRUDENTIAL PLC 13F-HR 11 May 2015, 13:44
Q4 2014 2,096 $61,827,332,000 +$10,042,294,814 -$7,980,733,593 +$2,061,561,221 SRCL, AMG, GILD, IDXX, WSM 13F-HR 05 Feb 2015, 13:42
Q3 2014 2,100 $58,454,671,000 +$8,527,329,920 -$9,125,202,575 -$597,872,655 GILD, SRCL, SU, AMG, TENCENT HOLDINGS LTD 13F-HR 04 Nov 2014, 16:19
Q2 2014 2,072 $61,234,425,000 +$11,271,172,658 -$11,357,899,314 -$86,726,656 SRCL, SU, TSM, GILD, AMG 13F-HR 01 Aug 2014, 13:46
Q1 2014 2,024 $60,446,691,000 +$11,690,929,061 -$11,359,332,404 +$331,596,657 BNP PARIBAS, SUMITOMO MITSUI FINANCIAL GR, SRCL, ROCHE HOLDING AG-GENUSSCHEIN, BAYERISCHE MOTOREN WERKE AG 13F-HR 06 May 2014, 14:31
Q4 2013 1,990 $60,499,148,000 $0 $0 $0 BNP PARIBAS, SUMITOMO MITSUI FINANCIAL GR, ROCHE HOLDING AG-GENUSSCHEIN, BAYERISCHE MOTOREN WERKE AG, ORIX CORP 13F-HR 11 Feb 2014, 15:07