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NorthStar Asset Management (Massachusetts)’s Costco COST Stock Holding History

NorthStar Asset Management (Massachusetts)’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
Q2 		$13.1M Sell
14,023
-1,449
-9% -$1.44M 3.84% 6
2026
Q1 		$15.4M Sell
15,472
-2,493
-14% -$2.43M 4.73% 5
2025
Q4 		$15.5M Buy
17,965
+314
+2% +$285K 4% 5
2025
Q3 		$16.3M Buy
17,651
+338
+2% +$324K 4.25% 6
2025
Q2 		$17.1M Sell
17,313
-116
-0.7% -$115K 4.74% 2
2025
Q1 		$16.5M Sell
17,429
-2,175
-11% -$2.12M 4.88% 3
2024
Q4 		$18M Sell
19,604
-1,316
-6% -$1.22M 4.72% 4
2024
Q3 		$18.5M Sell
20,920
-1,356
-6% -$1.18M 4.55% 5
2024
Q2 		$18.9M Sell
22,276
-873
-4% -$681K 4.84% 4
2024
Q1 		$17M Sell
23,149
-1,460
-6% -$1.04M 2.98% 8
2023
Q4 		$16.2M Sell
24,609
-160
-0.6% -$94.8K 4.69% 4
2023
Q3 		$14M Buy
24,769
+18
+0.1% +$9.94K 4.47% 8
2023
Q2 		$13.3M Buy
24,751
+264
+1% +$134K 3.93% 8
2023
Q1 		$12.2M Buy
24,487
+1,470
+6% +$721K 3.74% 8
2022
Q4 		$10.5M Buy
23,017
+451
+2% +$220K 3.51% 10
2022
Q3 		$10.7M Sell
22,566
-247
-1% -$128K 3.69% 10
2022
Q2 		$10.9M Sell
22,813
-2,078
-8% -$1.05M 3.6% 10
2022
Q1 		$14.3M Sell
24,891
-4,987
-17% -$2.62M 3.93% 7
2021
Q4 		$17M Buy
29,878
+8
+0% +$4.1K 4.26% 4
2021
Q3 		$13.4M Buy
29,870
+757
+3% +$333K 3.55% 8
2021
Q2 		$11.5M Buy
29,113
+1,574
+6% +$595K 3.08% 11
2021
Q1 		$9.71M Buy
+27,539
New +$9.59M 3.06% 12

Other funds holding COST

Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
Parnassus Investments
Parnassus Investments San Francisco, California $37.4B AUM 35.42% 1-Year Est. Return
EA
Emerald Advisors Bellevue, Washington $796M AUM 2.51% 1-Year Est. Return
New York State Common Retirement Fund
New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return
PTC
Provident Trust Company Waukesha, Wisconsin $4.77B AUM 29.31% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
Commonwealth Equity Services
Commonwealth Equity Services Waltham, Massachusetts $79.5B AUM 27.1% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
TWC
TD Waterhouse Canada Toronto, Ontario, Canada $38B AUM 39.14% 1-Year Est. Return

NorthStar Asset Management (Massachusetts)'s COST Position: Q2 2026 in Review

NorthStar Asset Management (Massachusetts) reduced its Costco (COST) stake by 9.4% in Q2 2026, selling an estimated $1.44M and leaving 14,023 shares worth $13.1M. The position accounts for 3.84% of the portfolio, ranked #6.

NorthStar Asset Management (Massachusetts) first reported a position in COST in Q1 2021 and has held it in 22 quarters since. The position peaked at $18.9M in Q2 2024. 1,853 funds tracked by Wall St. Rank hold COST as of Q2 2026.

  • NorthStar Asset Management (Massachusetts) held 14,023 shares of Costco worth $13.1M as of Q2 2026.
  • NorthStar Asset Management (Massachusetts) sold 1,449 Costco shares in Q2 2026, an estimated $1.44M.
  • Costco made up 3.84% of NorthStar Asset Management (Massachusetts)'s portfolio in Q2 2026, its #6 holding.
  • NorthStar Asset Management (Massachusetts) first reported a position in Costco in Q1 2021 and has held it in 22 quarters since.
  • NorthStar Asset Management (Massachusetts)'s Costco position peaked at $18.9M in Q2 2024.
  • 1,853 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on NorthStar Asset Management (Massachusetts)'s 13F filing for Q2 2026, filed 28 Jul 2026.