Birch Hill Investment Advisors’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 | $32.6M | Sell |
34,862
-177
| -0.5% | -$176K | 1.32% | 22 |
|
|
2026
Q1 | $34.9M | Sell |
35,039
-226
| -0.6% | -$220K | 1.57% | 22 |
|
|
2025
Q4 | $30.4M | Sell |
35,265
-259
| -0.7% | -$235K | 1.27% | 27 |
|
|
2025
Q3 | $32.9M | Sell |
35,524
-146
| -0.4% | -$140K | 1.39% | 26 |
|
|
2025
Q2 | $35.3M | Sell |
35,670
-996
| -3% | -$990K | 1.57% | 23 |
|
|
2025
Q1 | $34.7M | Sell |
36,666
-2,407
| -6% | -$2.35M | 1.64% | 22 |
|
|
2024
Q4 | $35.8M | Sell |
39,073
-1,012
| -3% | -$939K | 1.66% | 20 |
|
|
2024
Q3 | $35.5M | Sell |
40,085
-2,516
| -6% | -$2.18M | 1.67% | 22 |
|
|
2024
Q2 | $36.2M | Sell |
42,601
-1,617
| -4% | -$1.26M | 1.75% | 20 |
|
|
2024
Q1 | $32.4M | Sell |
44,218
-3,392
| -7% | -$2.42M | 1.58% | 24 |
|
|
2023
Q4 | $31.4M | Sell |
47,610
-1,751
| -4% | -$1.04M | 1.67% | 21 |
|
|
2023
Q3 | $27.9M | Sell |
49,361
-251
| -0.5% | -$139K | 1.66% | 24 |
|
|
2023
Q2 | $26.7M | Sell |
49,612
-793
| -2% | -$401K | 1.53% | 26 |
|
|
2023
Q1 | $25M | Sell |
50,405
-2,150
| -4% | -$1.05M | 1.56% | 26 |
|
|
2022
Q4 | $24M | Sell |
52,555
-724
| -1% | -$354K | 1.53% | 26 |
|
|
2022
Q3 | $25.2M | Sell |
53,279
-5,272
| -9% | -$2.74M | 1.7% | 24 |
|
|
2022
Q2 | $28.1M | Sell |
58,551
-3,030
| -5% | -$1.54M | 1.75% | 23 |
|
|
2022
Q1 | $35.5M | Sell |
61,581
-7,329
| -11% | -$3.85M | 1.89% | 23 |
|
|
2021
Q4 | $39.1M | Sell |
68,910
-1,338
| -2% | -$685K | 1.94% | 22 |
|
|
2021
Q3 | $31.6M | Sell |
70,248
-1,237
| -2% | -$544K | 1.7% | 25 |
|
|
2021
Q2 | $28.3M | Sell |
71,485
-2,020
| -3% | -$764K | 1.52% | 26 |
|
|
2021
Q1 | $25.9M | Sell |
73,505
-21,534
| -23% | -$7.5M | 1.48% | 26 |
|
|
2020
Q4 | $35.8M | Sell |
95,039
-6,335
| -6% | -$2.37M | 2.14% | 22 |
|
|
2020
Q3 | $36M | Sell |
101,374
-1,475
| -1% | -$496K | 2.39% | 17 |
|
|
2020
Q2 | $31.2M | Sell |
102,849
-8,951
| -8% | -$2.72M | 2.29% | 16 |
|
|
2020
Q1 | $31.9M | Sell |
111,800
-3,009
| -3% | -$913K | 2.79% | 15 |
|
|
2019
Q4 | $33.7M | Sell |
114,809
-15,066
| -12% | -$4.48M | 2.23% | 20 |
|
|
2019
Q3 | $37.4M | Sell |
129,875
-8,318
| -6% | -$2.34M | 2.7% | 14 |
|
|
2019
Q2 | $36.5M | Sell |
138,193
-717
| -0.5% | -$179K | 2.7% | 12 |
|
|
2019
Q1 | $33.6M | Sell |
138,910
-2,956
| -2% | -$647K | 2.56% | 14 |
|
|
2018
Q4 | $28.9M | Sell |
141,866
-26,517
| -16% | -$5.92M | 2.52% | 15 |
|
|
2018
Q3 | $39.5M | Sell |
168,383
-5,853
| -3% | -$1.32M | 2.89% | 12 |
|
|
2018
Q2 | $36.4M | Sell |
174,236
-3,480
| -2% | -$687K | 2.89% | 11 |
|
|
2018
Q1 | $33.5M | Buy |
177,716
+769
| +0.4% | +$145K | 2.77% | 12 |
|
|
2017
Q4 | $32.9M | Buy |
176,947
+55
| +0% | +$9.49K | 2.72% | 15 |
|
|
2017
Q3 | $29.1M | Sell |
176,892
-1,946
| -1% | -$306K | 2.53% | 15 |
|
|
2017
Q2 | $28.6M | Buy |
178,838
+9,606
| +6% | +$1.66M | 2.53% | 15 |
|
|
2017
Q1 | $28.4M | Buy |
169,232
+16,155
| +11% | +$2.71M | 2.42% | 16 |
|
|
2016
Q4 | $24.5M | Buy |
153,077
+14,932
| +11% | +$2.28M | 2.23% | 19 |
|
|
2016
Q3 | $21.1M | Buy |
138,145
+10,057
| +8% | +$1.63M | 1.96% | 21 |
|
|
2016
Q2 | $20.1M | Buy |
128,088
+23,903
| +23% | +$3.62M | 1.98% | 21 |
|
|
2016
Q1 | $16.4M | Sell |
104,185
-3,065
| -3% | -$465K | 1.73% | 23 |
|
|
2015
Q4 | $17.3M | Sell |
107,250
-2,865
| -3% | -$453K | 1.81% | 22 |
|
|
2015
Q3 | $15.9M | Sell |
110,115
-2,170
| -2% | -$310K | 1.74% | 21 |
|
|
2015
Q2 | $15.2M | Buy |
112,285
+1,530
| +1% | +$220K | 1.56% | 24 |
|
|
2015
Q1 | $16.8M | Buy |
110,755
+3,435
| +3% | +$504K | 1.71% | 23 |
|
|
2014
Q4 | $15.2M | Buy |
107,320
+2,370
| +2% | +$322K | 1.54% | 27 |
|
|
2014
Q3 | $13.2M | Buy |
104,950
+2,345
| +2% | +$283K | 1.37% | 31 |
|
|
2014
Q2 | $11.8M | Buy |
102,605
+5,995
| +6% | +$688K | 1.24% | 32 |
|
|
2014
Q1 | $10.8M | Buy |
96,610
+74,420
| +335% | +$8.51M | 1.16% | 32 |
|
|
2013
Q4 | $2.64M | Buy |
22,190
+8,465
| +62% | +$1.01M | 0.28% | 61 |
|
|
2013
Q3 | $1.58M | Buy |
13,725
+1,615
| +13% | +$186K | 0.19% | 68 |
|
|
2013
Q2 | $1.34M | Buy |
+12,110
| New | +$1.32M | 0.17% | 70 |
|
Other funds holding COST
EA
PTC
TWC
Birch Hill Investment Advisors's COST Position: Q2 2026 in Review
Birch Hill Investment Advisors reduced its Costco (COST) stake by 0.51% in Q2 2026, selling an estimated $176K and leaving 34,862 shares worth $32.6M. The position accounts for 1.32% of the portfolio, ranked #22.
Birch Hill Investment Advisors first reported a position in COST in Q2 2013 and has held it in 53 quarters since. The position peaked at $39.5M in Q3 2018. 1,718 funds tracked by Wall St. Rank hold COST as of Q2 2026.
- Birch Hill Investment Advisors held 34,862 shares of Costco worth $32.6M as of Q2 2026.
- Birch Hill Investment Advisors sold 177 Costco shares in Q2 2026, an estimated $176K.
- Costco made up 1.32% of Birch Hill Investment Advisors's portfolio in Q2 2026, its #22 holding.
- Birch Hill Investment Advisors first reported a position in Costco in Q2 2013 and has held it in 53 quarters since.
- Birch Hill Investment Advisors's Costco position peaked at $39.5M in Q3 2018.
- 1,718 funds tracked by Wall St. Rank held Costco as of Q2 2026.
Based on Birch Hill Investment Advisors's 13F filing for Q2 2026, filed 21 Jul 2026.