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Rockbridge Investment Management’s Costco COST Stock Holding History

Rockbridge Investment Management’s Portfolio COST Stock Details COST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$280K Sell
281
-2
-0.7% -$1.95K 0.03% 122
2025
Q4 		$244K Hold
283
– – 0.02% 124
2025
Q3 		$262K Hold
283
– – 0.03% 120
2025
Q2 		$280K Hold
283
– – 0.03% 116
2025
Q1 		$268K Buy
283
+17
+6% +$16.6K 0.03% 114
2024
Q4 		$244K Sell
266
-127
-32% -$118K 0.03% 116
2024
Q3 		$349K Hold
393
– – 0.05% 101
2024
Q2 		$334K Hold
393
– – 0.05% 98
2024
Q1 		$288K Hold
393
– – 0.04% 101
2023
Q4 		$259K Sell
393
-52
-12% -$30.8K 0.04% 99
2023
Q3 		$251K Buy
+445
New +$246K 0.04% 96
2022
Q3 		– Sell
-100
Closed -$47.9K – 200
2022
Q2 		$47.9K Sell
100
-157
-61% -$79.6K 0.01% 222
2022
Q1 		$148K Hold
257
– – 0.02% 184
2021
Q4 		$146K Buy
257
+100
+64% +$51.2K 0.02% 205
2021
Q3 		$71K Hold
157
– – 0.01% 274
2021
Q2 		$62K Hold
157
– – 0.01% 283
2021
Q1 		$55K Hold
157
– – 0.01% 277
2020
Q4 		$59K Sell
157
-26
-14% -$9.71K 0.01% 263
2020
Q3 		$65K Hold
183
– – 0.02% 240
2020
Q2 		$55K Buy
+183
New +$55.7K 0.01% 225

Other funds holding COST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
DAM
Diamant Asset Management Ridgefield, Connecticut $137B AUM 18.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Rockbridge Investment Management's COST Position: Q1 2026 in Review

Rockbridge Investment Management reduced its Costco (COST) stake by 0.71% in Q1 2026, selling an estimated $1.95K and leaving 281 shares worth $280K. The position accounts for 0.03% of the portfolio, ranked #122.

Rockbridge Investment Management first reported a position in COST in Q2 2020 and has held it in 20 quarters since. The position peaked at $349K in Q3 2024. 4,238 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Rockbridge Investment Management held 281 shares of Costco worth $280K as of Q1 2026.
  • Rockbridge Investment Management sold 2 Costco shares in Q1 2026, an estimated $1.95K.
  • Costco made up 0.03% of Rockbridge Investment Management's portfolio in Q1 2026, its #122 holding.
  • Rockbridge Investment Management first reported a position in Costco in Q2 2020 and has held it in 20 quarters since.
  • Rockbridge Investment Management's Costco position peaked at $349K in Q3 2024.
  • 4,238 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Rockbridge Investment Management's 13F filing for Q1 2026, filed 14 May 2026.