Mechanics Bank - Trust Department’s Costco COST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$15.2M Sell
16,216
-43
-0.3% -$42.8K 1.88% 10
2026
Q1
$16.2M Sell
16,259
-148
-0.9% -$144K 2.24% 7
2025
Q4
$14.1M Buy
16,407
+123
+0.8% +$111K 1.85% 11
2025
Q3
$15.1M Sell
16,284
-714
-4% -$684K 2.12% 8
2025
Q2
$16.8M Sell
16,998
-1,693
-9% -$1.68M 2.41% 7
2025
Q1
$17.7M Sell
18,691
-904
-5% -$881K 2.41% 6
2024
Q4
$18M Sell
19,595
-299
-2% -$277K 2.39% 6
2024
Q3
$17.6M Sell
19,894
-332
-2% -$288K 2.35% 6
2024
Q2
$17.2M Sell
20,226
-489
-2% -$382K 2.46% 6
2024
Q1
$15.2M Sell
20,715
-585
-3% -$418K 2.23% 7
2023
Q4
$14.1M Sell
21,300
-593
-3% -$351K 2.19% 7
2023
Q3
$12.4M Sell
21,893
-357
-2% -$197K 2.07% 8
2023
Q2
$12M Sell
22,250
-64
-0.3% -$32.4K 1.91% 9
2023
Q1
$11.1M Sell
22,314
-475
-2% -$233K 1.87% 10
2022
Q4
$10.4M Buy
22,789
+54
+0.2% +$26.4K 1.8% 12
2022
Q3
$10.7M Sell
22,735
-406
-2% -$211K 2.03% 9
2022
Q2
$11.1M Buy
23,141
+41
+0.2% +$20.8K 1.98% 10
2022
Q1
$13.3M Sell
23,100
-467
-2% -$245K 2.06% 9
2021
Q4
$13.4M Sell
23,567
-664
-3% -$340K 1.98% 9
2021
Q3
$10.9M Sell
24,231
-666
-3% -$293K 1.76% 10
2021
Q2
$9.85M Sell
24,897
-1,494
-6% -$565K 1.62% 12
2021
Q1
$9.3M Buy
26,391
+564
+2% +$196K 1.6% 14
2020
Q4
$9.73M Sell
25,827
-217
-0.8% -$81.1K 1.75% 11
2020
Q3
$9.24M Sell
26,044
-819
-3% -$275K 1.83% 11
2020
Q2
$8.14M Buy
26,863
+63
+0.2% +$19.2K 1.71% 12
2020
Q1
$7.64M Sell
26,800
-621
-2% -$188K 1.87% 9
2019
Q4
$8.06M Sell
27,421
-652
-2% -$194K 1.58% 15
2019
Q3
$8.09M Buy
28,073
+523
+2% +$147K 1.62% 14
2019
Q2
$7.28M Sell
27,550
-1,661
-6% -$414K 1.65% 15
2019
Q1
$7.07M Sell
29,211
-700
-2% -$153K 1.61% 16
2018
Q4
$6.09M Sell
29,911
-329
-1% -$73.5K 1.54% 17
2018
Q3
$7.1M Sell
30,240
-499
-2% -$112K 1.52% 19
2018
Q2
$6.42M Sell
30,739
-220
-0.7% -$43.5K 1.47% 19
2018
Q1
$5.83M Sell
30,959
-1,395
-4% -$263K 1.37% 20
2017
Q4
$6.02M Sell
32,354
-305
-0.9% -$52.7K 1.36% 21
2017
Q3
$5.37M Sell
32,659
-897
-3% -$141K 1.28% 23
2017
Q2
$5.37M Buy
33,556
+1,529
+5% +$263K 1.28% 24
2017
Q1
$5.37M Sell
32,027
-1,575
-5% -$264K 1.31% 20
2016
Q4
$5.38M Sell
33,602
-2,316
-6% -$354K 1.3% 21
2016
Q3
$5.48M Sell
35,918
-290
-0.8% -$46.9K 1.34% 22
2016
Q2
$5.69M Buy
36,208
+2,045
+6% +$310K 2.1% 15
2016
Q1
$5.38M Buy
34,163
+2,040
+6% +$309K 2.09% 16
2015
Q4
$5.19M Sell
32,123
-1,798
-5% -$284K 2.03% 14
2015
Q3
$4.9M Sell
33,921
-308
-0.9% -$43.9K 1.96% 17
2015
Q2
$4.62M Sell
34,229
-2,895
-8% -$416K 1.62% 20
2015
Q1
$5.62M Sell
37,124
-1,495
-4% -$219K 1.82% 16
2014
Q4
$5.47M Sell
38,619
-5,688
-13% -$773K 1.7% 18
2014
Q3
$5.55M Sell
44,307
-3,200
-7% -$387K 1.68% 19
2014
Q2
$5.47M Sell
47,507
-3,110
-6% -$357K 1.57% 19
2014
Q1
$5.65M Sell
50,617
-20
-0% -$2.29K 1.29% 26
2013
Q4
$6.03M Buy
50,637
+610
+1% +$72.9K 1.46% 20
2013
Q3
$5.76M Buy
50,027
+872
+2% +$101K 1.58% 20
2013
Q2
$5.43M Buy
+49,155
New +$5.37M 1.45% 24

Other funds holding COST

Mechanics Bank - Trust Department's COST Position: Q2 2026 in Review

Mechanics Bank - Trust Department reduced its Costco (COST) stake by 0.26% in Q2 2026, selling an estimated $42.8K and leaving 16,216 shares worth $15.2M. The position accounts for 1.88% of the portfolio, ranked #10.

Mechanics Bank - Trust Department first reported a position in COST in Q2 2013 and has held it in 53 quarters since. The position peaked at $18M in Q4 2024. 2,233 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • Mechanics Bank - Trust Department held 16,216 shares of Costco worth $15.2M as of Q2 2026.
  • Mechanics Bank - Trust Department sold 43 Costco shares in Q2 2026, an estimated $42.8K.
  • Costco made up 1.88% of Mechanics Bank - Trust Department's portfolio in Q2 2026, its #10 holding.
  • Mechanics Bank - Trust Department first reported a position in Costco in Q2 2013 and has held it in 53 quarters since.
  • Mechanics Bank - Trust Department's Costco position peaked at $18M in Q4 2024.
  • 2,233 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Mechanics Bank - Trust Department's 13F filing for Q2 2026, filed 7 Jul 2026.