Marshall Wace
EC icon

Marshall Wace’s Ecopetrol EC Stock Holding History

Marshall Wace’s Portfolio EC Stock Details EC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$37.5M Buy
2,636,516
+2,066,221
+362% +$29.9M 0.03% 478
2026
Q1 		$8.55M Buy
570,295
+414,381
+266% +$5.25M 0.01% 1051
2025
Q4 		$1.56M Sell
155,914
-39,676
-20% -$379K ﹤0.01% 1700
2025
Q3 		$1.8M Buy
195,590
+157,990
+420% +$1.42M ﹤0.01% 1666
2025
Q2 		$333K Buy
+37,600
New +$333K ﹤0.01% 2297
2025
Q1 		– Sell
-370,555
Closed -$2.93M – 2728
2024
Q4 		$2.93M Buy
370,555
+234,459
+172% +$1.89M ﹤0.01% 1293
2024
Q3 		$1.22M Buy
+136,096
New +$1.38M ﹤0.01% 1567
2024
Q2 		– Sell
-25,700
Closed -$304K – 2643
2024
Q1 		$304K Sell
25,700
-72,408
-74% -$839K ﹤0.01% 2107
2023
Q4 		$1.17M Sell
98,108
-140,356
-59% -$1.7M ﹤0.01% 1422
2023
Q3 		$2.76M Sell
238,464
-1,013,252
-81% -$11.6M 0.01% 1083
2023
Q2 		$12.8M Sell
1,251,716
-2,554,444
-67% -$25.8M 0.03% 633
2023
Q1 		$40.2M Buy
3,806,160
+573,319
+18% +$6.22M 0.09% 262
2022
Q4 		$33.8M Buy
3,232,841
+1,983,223
+159% +$19.3M 0.08% 294
2022
Q3 		$11.2M Buy
1,249,618
+683,746
+121% +$7.03M 0.02% 802
2022
Q2 		$6.14M Buy
565,872
+526,768
+1,347% +$8.38M 0.01% 1201
2022
Q1 		$726K Sell
39,104
-89,200
-70% -$1.4M ﹤0.01% 2597
2021
Q4 		$1.65M Sell
128,304
-283,971
-69% -$4.05M ﹤0.01% 2161
2021
Q3 		$5.92M Sell
412,275
-263,444
-39% -$3.58M 0.02% 847
2021
Q2 		$9.88M Buy
+675,719
New +$8.62M 0.04% 489
2020
Q2 		– Sell
-11,737
Closed -$112K – 1642
2020
Q1 		$112K Buy
+11,737
New +$194K ﹤0.01% 1296
2019
Q3 		– Sell
-17,340
Closed -$317K – 1718
2019
Q2 		$317K Buy
+17,340
New +$325K ﹤0.01% 1173
2019
Q1 		– Sell
-119,454
Closed -$1.9M – 1799
2018
Q4 		$1.9M Buy
119,454
+109,083
+1,052% +$2.34M 0.02% 736
2018
Q3 		$279K Buy
+10,371
New +$229K ﹤0.01% 1020

Other funds holding EC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
GA
GFS Advisors Houston, Texas $948M AUM 41.15% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Marshall Wace's EC Position: Q2 2026 in Review

Marshall Wace increased its Ecopetrol (EC) stake by 362% in Q2 2026, buying an estimated $29.9M and bringing the position to 2,636,516 shares worth $37.5M. The position accounts for 0.03% of the portfolio, ranked #478.

Marshall Wace first reported a position in EC in Q3 2018 and has held it in 23 quarters since. The position peaked at $40.2M in Q1 2023. 164 funds tracked by Wall St. Rank hold EC as of Q2 2026.

  • Marshall Wace held 2,636,516 shares of Ecopetrol worth $37.5M as of Q2 2026.
  • Marshall Wace bought 2,066,221 Ecopetrol shares in Q2 2026, an estimated $29.9M.
  • Ecopetrol made up 0.03% of Marshall Wace's portfolio in Q2 2026, its #478 holding.
  • Marshall Wace first reported a position in Ecopetrol in Q3 2018 and has held it in 23 quarters since.
  • Marshall Wace's Ecopetrol position peaked at $40.2M in Q1 2023.
  • 164 funds tracked by Wall St. Rank held Ecopetrol as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.