13F Filings History of S&CO INC

Latest 13F report
Q4 2025 - 05 Feb 2026
Value $
$1,609,907,000
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 218 stock holdings with total value $1,609,907,000 as of Q4 2025. Top holdings included MSFT, BRKB, XOM, AAPL, and CAT.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q4 2025 218 $1,609,907,000 +$37,077,784 -$85,687,964 -$48,610,180 MSFT, BRKB, XOM, AAPL, CAT 13F-HR 05 Feb 2026, 12:47
Q3 2025 222 $1,633,541,000 +$47,288,570 -$54,463,854 -$7,175,284 MSFT, BRKB, ECL, ADP, XOM 13F-HR 06 Nov 2025, 09:41
Q2 2025 223 $1,559,557,000 +$34,192,077 -$37,934,620 -$3,742,543 MSFT, BRKB, ADP, CHD, ECL 13F-HR 07 Aug 2025, 15:32
Q1 2025 217 $1,490,023,000 +$43,071,953 -$25,947,888 +$17,124,065 BRKB, CHD, XOM, ADP, MSFT 13F-HR 08 May 2025, 07:59
Q4 2024 210 $1,473,642,000 +$23,466,660 -$36,896,521 -$13,429,861 BRKB, AAPL, CHD, MSFT, ADP 13F-HR 07 Feb 2025, 14:13
Q3 2024 219 $1,530,481,000 +$54,639,074 -$43,125,610 +$11,513,464 BRKB, CHD, AAPL, MSFT, XOM 13F-HR 07 Nov 2024, 08:57
Q2 2024 217 $1,433,728,000 +$123,800,226 -$99,810,123 +$23,990,103 XOM, CHD, MSFT, BRKB, AAPL 13F-HR 08 Aug 2024, 09:04
Q1 2024 210 $1,419,971,000 +$78,072,417 -$42,780,155 +$35,292,262 BRKB, CHD, MSFT, PXD, ECL 13F-HR 09 May 2024, 09:05
Q4 2023 192 $1,304,228,000 +$47,503,584 -$31,335,545 +$16,168,039 AAPL, CHD, BRKB, MSFT, PXD 13F-HR 12 Feb 2024, 13:09
Q3 2023 183 $1,217,724,000 +$30,002,312 -$13,946,954 +$16,055,358 CHD, BRKB, AAPL, PXD, ADP 13F-HR 09 Nov 2023, 08:16
Q2 2023 182 $1,241,128,000 +$72,164,687 -$62,880,225 +$9,284,462 AAPL, CHD, BRKB, MSFT, PXD 13F-HR 08 Aug 2023, 08:14
Q1 2023 180 $1,177,647,000 +$22,756,618 -$17,692,844 +$5,063,774 AAPL, CHD, MOS, BRKB, ADP 13F-HR 09 May 2023, 10:39
Q4 2022 179 $1,142,028,000 +$4,596,262 -$62,171,296 -$57,575,034 CHD, BRKB, MOS, PXD, ADP 13F-HR 07 Feb 2023, 12:04
Q3 2022 184 $1,110,553,000 +$44,094,958 -$13,758,690 +$30,336,268 MOS, AAPL, ADP, PXD, CHD 13F-HR 09 Nov 2022, 08:53
Q2 2022 187 $1,189,475,000 +$9,984,937 -$36,324,925 -$26,339,988 CHD, AAPL, MOS, PXD, BRKB 13F-HR 09 Aug 2022, 12:08
Q1 2022 189 $1,424,564,000 +$36,701,850 -$21,214,298 +$15,487,552 MOS, AAPL, CHD, BRKB, PXD 13F-HR 05 May 2022, 14:29
Q4 2021 193 $1,415,807,000 +$34,548,664 -$10,449,779 +$24,098,885 AAPL, CHD, BRKB, ECL, ADP 13F-HR 08 Feb 2022, 08:52
Q3 2021 187 $1,282,683,000 +$34,909,898 -$30,878,055 +$4,031,843 CHD, LBRDK, AAPL, BRKB, ECL 13F-HR 09 Nov 2021, 13:21
Q2 2021 188 $1,280,499,000 +$40,884,708 -$11,700,797 +$29,183,911 CHD, LBRDK, AAPL, BRKB, ECL 13F-HR 14 Jul 2021, 14:47
Q1 2021 184 $1,188,461,000 +$17,495,392 -$14,144,984 +$3,350,408 CHD, ECL, BRKB, AAPL, LBRDK 13F-HR 23 Apr 2021, 09:25
Q4 2020 181 $1,119,855,000 +$32,395,295 -$27,883,720 +$4,511,575 CHD, AAPL, ECL, LBRDK, BRKB 13F-HR 28 Jan 2021, 13:53
Q3 2020 175 $1,002,940,000 +$56,764,138 -$3,145,869 +$53,618,269 CHD, ECL, AAPL, BRKB, MRK 13F-HR 11 Dec 2020, 16:52
Q2 2020 169 $910,126,000 +$43,903,334 -$8,506,412 +$35,396,922 CHD, ECL, AAPL, BRKB, ADP 13F-HR 16 Dec 2020, 10:32
Q1 2020 168 $748,372,000 +$16,855,781 -$18,199,921 -$1,344,140 CHD, ECL, BRKB, ADP, MRK 13F-HR 28 Apr 2020, 13:23
Q4 2019 179 $958,474,000 +$9,962,483 -$23,236,435 -$13,273,952 CHD, ECL, BRKB, ADP, MRK 13F-HR 24 Jan 2020, 14:24
Q3 2019 181 $903,048,000 +$14,243,200 -$9,247,629 +$4,995,571 CHD, ECL, BRKB, ADP, MRK 13F-HR 29 Oct 2019, 11:51
Q2 2019 186 $911,241,000 +$7,312,740 -$10,161,094 -$2,848,354 CHD, ECL, BRKB, ADP, MRK 13F-HR 23 Jul 2019, 14:06
Q1 2019 193 $898,300,000 +$21,732,167 -$3,840,594 +$17,891,573 CHD, ECL, BRKB, ADP, MOS 13F-HR 24 Apr 2019, 15:01
Q4 2018 178 $788,650,000 +$22,193,658 -$14,449,665 +$7,743,993 CHD, BRKB, ECL, MOS, ADP 13F-HR 29 Jan 2019, 10:58
Q3 2018 186 $893,287,000 +$11,943,105 -$15,065,929 -$3,122,824 CHD, BRKB, MOS, ECL, ADP 13F-HR 05 Nov 2018, 14:06
Q2 2018 197 $831,327,000 +$32,516,506 -$9,129,659 +$23,386,847 CHD, BRKB, MOS, ECL, ADP 13F-HR 27 Jul 2018, 13:37
Q1 2018 201 $794,958,000 +$44,440,911 -$29,852,163 +$14,588,748 BRKB, CHD, ECL, MOS, JNJ 13F-HR 02 May 2018, 09:15
Q4 2017 185 $806,249,000 +$23,831,870 -$26,389,921 -$2,558,051 BRKB, CHD, ECL, JNJ, MOS 13F-HR 22 Jan 2018, 11:58
Q3 2017 184 $782,751,000 +$18,555,012 -$20,025,113 -$1,470,101 BRKB, CHD, ECL, JNJ, ADP 13F-HR 02 Nov 2017, 09:41
Q2 2017 182 $756,350,000 +$12,068,629 -$3,427,809 +$8,640,820 CHD, BRKB, ECL, JNJ, MRK 13F-HR 28 Jul 2017, 09:15
Q1 2017 182 $734,822,000 +$15,790,611 -$7,856,030 +$7,934,581 CHD, BRKB, ECL, JNJ, MOS 13F-HR 07 Apr 2017, 11:20
Q4 2016 178 $691,210,000 +$67,546,950 -$46,011,358 +$21,535,592 BRKB, CHD, ECL, MOS, ADP Restatement 27 Jan 2017, 15:02
Q3 2016 157 $666,124,000 +$35,625,123 -$12,761,304 +$22,863,819 CHD, ECL, BRKB, JNJ, XOM 13F-HR 28 Oct 2016, 14:27
Q2 2016 155 $646,301,000 +$53,183,335 -$42,635,689 +$10,547,646 CHD, BRKB, ECL, JNJ, XOM 13F-HR 21 Jul 2016, 15:15
Q1 2016 140 $616,991,000 +$23,582,112 -$11,061,917 +$12,520,195 CHD, BRKB, ECL, JNJ, XOM 13F-HR 29 Apr 2016, 15:55
Q4 2015 139 $595,276,000 +$10,809,480 -$22,186,763 -$11,377,283 CHD, BRKB, ECL, XOM, JNJ 13F-HR 27 Jan 2016, 10:14
Q3 2015 142 $580,358,000 +$27,577,924 -$67,537,997 -$39,960,073 CHD, BRKB, ECL, XOM, JNJ 13F-HR 28 Oct 2015, 10:26
Q2 2015 146 $683,661,000 +$20,185,311 -$40,713,215 -$20,527,904 CHD, PLL, BRKB, ECL, XOM 13F-HR 13 Jul 2015, 09:34
Q1 2015 142 $703,548,000 +$37,152,118 -$24,110,837 +$13,041,281 PLL, CHD, BRKB, XOM, ECL 13F-HR 27 Apr 2015, 15:41
Q4 2014 142 $689,850,000 +$45,215,146 -$13,798,881 +$31,416,265 PLL, XOM, BRKB, CHD, ECL 13F-HR 20 Jan 2015, 11:27
Q3 2014 141 $653,564,000 +$41,905,556 -$70,725,281 -$28,819,725 XOM, BRKB, PLL, LMCK, ECL 13F-HR 31 Oct 2014, 15:00
Q2 2014 140 $720,371,000 +$61,072,775 -$20,487,531 +$40,585,244 LMCA, XOM, PLL, BRKB, ECL 13F-HR 24 Jul 2014, 10:28
Q1 2014 130 $668,999,000 +$85,698,117 -$15,768,514 +$69,929,603 LMCA, XOM, PLL, BRKB, CHD 13F-HR 28 Apr 2014, 16:42
Q4 2013 124 $598,589,000 $0 $0 $0 XOM, PLL, BRKB, ECL, CHD 13F-HR 07 Feb 2014, 10:49