13F Filings History of S&CO INC

Latest 13F report
Q3 2025 - 06 Nov 2025
Value $
$1,633,541,000
Signature - Title
Jason Ries - Operations
Location
Boston, MA
Summary
This page shows a list of all the recent 13F filings made by S&CO INC. Form 13F is required to be filed within 45 days of the end of a calendar quarter. S&CO INC reported 222 stock holdings with total value $1,633,541,000 as of Q3 2025. Top holdings included MSFT, BRKB, ECL, ADP, and XOM.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q3 2025 222 $1,633,541,000 +$47,288,572 -$54,463,857 -$7,175,285 MSFT, BRKB, ECL, ADP, XOM 13F-HR 06 Nov 2025, 09:41
Q2 2025 223 $1,559,557,000 +$34,192,080 -$37,934,622 -$3,742,542 MSFT, BRKB, ADP, CHD, ECL 13F-HR 07 Aug 2025, 15:32
Q1 2025 217 $1,490,023,000 +$43,071,957 -$25,947,894 +$17,124,063 BRKB, CHD, XOM, ADP, MSFT 13F-HR 08 May 2025, 07:59
Q4 2024 210 $1,473,642,000 +$23,466,664 -$36,896,531 -$13,429,867 BRKB, AAPL, CHD, MSFT, ADP 13F-HR 07 Feb 2025, 14:13
Q3 2024 219 $1,530,481,000 +$54,639,096 -$43,125,616 +$11,513,480 BRKB, CHD, AAPL, MSFT, XOM 13F-HR 07 Nov 2024, 08:57
Q2 2024 217 $1,433,728,000 +$123,800,230 -$99,810,133 +$23,990,097 XOM, CHD, MSFT, BRKB, AAPL 13F-HR 08 Aug 2024, 09:04
Q1 2024 210 $1,419,971,000 +$78,072,425 -$42,780,160 +$35,292,265 BRKB, CHD, MSFT, PXD, ECL 13F-HR 09 May 2024, 09:05
Q4 2023 192 $1,304,228,000 +$47,503,577 -$31,335,522 +$16,168,055 AAPL, CHD, BRKB, MSFT, PXD 13F-HR 12 Feb 2024, 13:09
Q3 2023 188 $1,217,724,000 +$30,002,264 -$13,946,949 +$16,055,315 CHD, BRKB, AAPL, PXD, ADP 13F-HR 09 Nov 2023, 08:16
Q2 2023 182 $1,241,128,000 +$72,164,732 -$20,784,224 +$51,380,508 AAPL, CHD, BRKB, MSFT, PXD 13F-HR 08 Aug 2023, 08:14
Q1 2023 180 $1,177,647,000 +$22,756,623 -$5,403,844 +$17,352,779 AAPL, CHD, MOS, BRKB, ADP 13F-HR 09 May 2023, 10:39
Q4 2022 179 $1,142,028,000 +$4,596,262 -$20,657,306 -$16,061,044 CHD, BRKB, MOS, PXD, ADP 13F-HR 07 Feb 2023, 11:04
Q3 2022 184 $1,110,553,000 +$44,094,951 -$11,301,688 +$32,793,263 MOS, AAPL, ADP, PXD, CHD 13F-HR 09 Nov 2022, 07:53
Q2 2022 187 $1,189,475,000 +$9,984,946 -$29,528,925 -$19,543,979 CHD, AAPL, MOS, PXD, BRKB 13F-HR 09 Aug 2022, 12:08
Q1 2022 189 $1,424,564,000 +$36,701,834 -$7,875,297 +$28,826,537 MOS, AAPL, CHD, BRKB, PXD 13F-HR 05 May 2022, 14:29
Q4 2021 192 $1,415,013,000 +$34,548,663 -$5,511,778 +$29,036,885 AAPL, CHD, BRKB, ECL, ADP 13F-HR 08 Feb 2022, 07:52
Q3 2021 187 $1,282,683,000 +$34,909,945 -$30,878,050 +$4,031,895 CHD, LBRDK, AAPL, BRKB, ECL 13F-HR 09 Nov 2021, 13:21
Q2 2021 188 $1,280,499,000 +$40,884,706 -$11,700,798 +$29,183,908 CHD, LBRDK, AAPL, BRKB, ECL 13F-HR 14 Jul 2021, 14:47
Q1 2021 184 $1,188,461,000 +$17,495,394 -$14,144,994 +$3,350,400 CHD, ECL, BRKB, AAPL, LBRDK 13F-HR 23 Apr 2021, 09:25
Q4 2020 181 $1,119,855,000 +$32,395,296 -$9,889,719 +$22,505,577 CHD, AAPL, ECL, LBRDK, BRKB 13F-HR 28 Jan 2021, 12:53
Q3 2020 175 $1,002,940,000 +$56,764,159 -$3,134,868 +$53,629,291 CHD, ECL, AAPL, BRKB, MRK 13F-HR 11 Dec 2020, 15:52
Q2 2020 169 $910,126,000 +$43,903,358 -$5,216,420 +$38,686,938 CHD, ECL, AAPL, BRKB, ADP 13F-HR 16 Dec 2020, 09:32
Q1 2020 168 $748,561,000 +$16,855,787 -$6,490,923 +$10,364,864 CHD, ECL, BRKB, ADP, MRK 13F-HR 28 Apr 2020, 13:23
Q4 2019 179 $958,474,000 +$9,962,484 -$17,639,425 -$7,676,941 CHD, ECL, BRKB, ADP, MRK 13F-HR 24 Jan 2020, 13:24
Q3 2019 181 $903,048,000 +$14,243,207 -$3,721,628 +$10,521,579 CHD, ECL, BRKB, ADP, MRK 13F-HR 29 Oct 2019, 11:51
Q2 2019 186 $911,241,000 +$7,312,736 -$7,738,089 -$425,353 CHD, ECL, BRKB, ADP, MRK 13F-HR 23 Jul 2019, 14:06
Q1 2019 193 $898,300,000 +$21,732,182 -$3,333,594 +$18,398,588 CHD, ECL, BRKB, ADP, MOS 13F-HR 24 Apr 2019, 15:01
Q4 2018 178 $788,650,000 +$22,193,673 -$8,141,665 +$14,052,008 CHD, BRKB, ECL, MOS, ADP 13F-HR 29 Jan 2019, 09:58
Q3 2018 186 $893,287,000 +$11,943,097 -$7,781,927 +$4,161,170 CHD, BRKB, MOS, ECL, ADP 13F-HR 05 Nov 2018, 13:06
Q2 2018 197 $831,327,000 +$32,516,501 -$2,938,658 +$29,577,843 CHD, BRKB, MOS, ECL, ADP 13F-HR 27 Jul 2018, 13:37
Q1 2018 201 $794,958,000 +$44,440,923 -$3,005,162 +$41,435,761 BRKB, CHD, ECL, MOS, JNJ 13F-HR 02 May 2018, 09:15
Q4 2017 185 $806,249,000 +$23,831,899 -$8,707,920 +$15,123,979 BRKB, CHD, ECL, JNJ, MOS 13F-HR 22 Jan 2018, 10:58
Q3 2017 184 $782,751,000 +$18,555,019 -$19,441,102 -$886,083 BRKB, CHD, ECL, JNJ, ADP 13F-HR 02 Nov 2017, 09:41
Q2 2017 182 $756,350,000 +$12,068,625 -$1,156,809 +$10,911,816 CHD, BRKB, ECL, JNJ, MRK 13F-HR 28 Jul 2017, 09:15
Q1 2017 182 $734,822,000 +$15,790,611 -$4,195,030 +$11,595,581 CHD, BRKB, ECL, JNJ, MOS 13F-HR 07 Apr 2017, 11:20
Q4 2016 178 $691,210,000 +$67,546,952 -$19,378,359 +$48,168,593 BRKB, CHD, ECL, MOS, ADP Restatement 27 Jan 2017, 14:02
Q3 2016 157 $666,124,000 +$35,625,126 -$10,579,298 +$25,045,828 CHD, ECL, BRKB, JNJ, XOM 13F-HR 28 Oct 2016, 14:27
Q2 2016 155 $646,301,000 +$53,183,333 -$1,904,690 +$51,278,643 CHD, BRKB, ECL, JNJ, XOM 13F-HR 21 Jul 2016, 15:15
Q1 2016 140 $616,991,000 +$23,582,114 -$4,679,914 +$18,902,200 CHD, BRKB, ECL, JNJ, XOM 13F-HR 29 Apr 2016, 15:55
Q4 2015 139 $595,276,000 +$10,809,481 -$15,090,757 -$4,281,276 CHD, BRKB, ECL, XOM, JNJ 13F-HR 27 Jan 2016, 09:14
Q3 2015 142 $580,358,000 +$27,577,932 -$9,027,998 +$18,549,934 CHD, BRKB, ECL, XOM, JNJ 13F-HR 28 Oct 2015, 10:26
Q2 2015 146 $683,661,000 +$20,185,310 -$26,649,217 -$6,463,907 CHD, PLL, BRKB, ECL, XOM 13F-HR 13 Jul 2015, 09:34
Q1 2015 142 $703,548,000 +$37,152,115 -$7,685,838 +$29,466,277 PLL, CHD, BRKB, XOM, ECL 13F-HR 27 Apr 2015, 15:41
Q4 2014 142 $689,850,000 +$45,215,161 -$11,138,880 +$34,076,281 PLL, XOM, BRKB, CHD, ECL 13F-HR 20 Jan 2015, 10:27
Q3 2014 141 $653,564,000 +$41,905,579 -$28,212,284 +$13,693,295 XOM, BRKB, PLL, LMCKXXXX, ECL 13F-HR 31 Oct 2014, 15:00
Q2 2014 140 $720,371,000 +$61,073,119 -$19,180,530 +$41,892,589 LMCAXXXX, XOM, PLL, BRKB, ECL 13F-HR 24 Jul 2014, 10:28
Q1 2014 130 $668,999,000 +$85,698,108 -$9,869,513 +$75,828,595 LMCAXXXX, XOM, PLL, BRKB, CHD 13F-HR 28 Apr 2014, 16:42
Q4 2013 124 $598,589,000 $0 XOM, PLL, BRKB, ECL, CHD 13F-HR 07 Feb 2014, 09:49