Marshall Wace 13F Holdings & Latest Moves

13F filer · Latest filing May 15, 2026 · SEC CIK 0001318757

Marshall Wace reported a 13F portfolio worth $100.41B as of Q1 2026. Latest 13F moves (filed May 15, 2026): 2 new positions, 32 added, 20 reduced. Largest change by value: added $AAPL ($2.41B held).

13F value (Q1 2026)
$100.41B
New positions
2
Added / reduced
32 / 20
Sold out
0

Top buys and sells in the latest 13F

Biggest new and added positions

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AAPL Added +1.73M (+25.92%) 8.38M $2.41B +2.9%-1.3% —
$AMAT Added +41.80K (+3.88%) 1.12M $782.13M -0.9%+34.3% —
$AMAT Added +41.80K (+3.88%) 1.12M $617.86M -0.9%+34.3% —
$ABNB Added +2.82M (+1310.07%) 3.03M $445.35M -0.4%+4.6% —
$ASML Added +164.94K (+296.46%) 220.57K $435.42M +8.7%+26.0% —

Biggest reduced and exited positions

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AMD Reduced -950.12K (-20.04%) 3.79M $2.14B +10.2%+29.0% —
$AMZN Reduced -3.14M (-26.19%) 8.85M $2.13B +0.8%-6.9% —
$AVGO Reduced -885.79K (-26.45%) 2.46M $925.25M -2.6%-7.4% —
$BDX Reduced -265.39K (-14.32%) 1.59M $240.28M +2.9%+2.1% —
$BDX Reduced -265.39K (-14.32%) 1.59M $233.96M +2.9%+2.1% —

New positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$APP New +223.22K 223.22K $115.20M -3.9%+4.0% —
$APD New +363.51K 363.51K $107.78M -2.0%-4.2% —

Added positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AAPL Added +1.73M (+25.92%) 8.38M $2.41B +2.9%-1.3% —
$AMAT Added +41.80K (+3.88%) 1.12M $782.13M -0.9%+34.3% —
$AMAT Added +41.80K (+3.88%) 1.12M $617.86M -0.9%+34.3% —
$ABNB Added +2.82M (+1310.07%) 3.03M $445.35M -0.4%+4.6% —
$ASML Added +164.94K (+296.46%) 220.57K $435.42M +8.7%+26.0% —
$APH Added +1.85M (+375.46%) 2.34M $412.11M +5.6%+26.9% —
$ADI Added +936.50K (+40383.57%) 938.81K $372.88M -4.9%+2.7% —
$ALNY Added +549.40K (+99.90%) 1.10M $327.71M +3.6%+0.3% —
$ALNY Added +549.40K (+99.90%) 1.10M $319.33M +3.6%+0.3% —
$BE Added +890.45K (+630.68%) 1.03M $304.63M +9.6%-0.5% —
$BKR Added +1.77M (+89.82%) 3.74M $211.92M +3.0%-2.6% —
$BK Added +955.98K (+232.01%) 1.37M $187.64M +3.1%+5.5% —
$ACN Added +1.49M (+6346.45%) 1.51M $185.75M +6.2%-2.1% —
$ABT Added +1.95M (+3338.26%) 2.01M $182.79M +3.5%+5.0% —
$AS Added +2.64M (+115.54%) 4.93M $166.75M +7.4%+9.3% —
$AMT Added +439.84K (+141.24%) 751.25K $142.20M +7.7%+9.9% —
$AIG Added +1.64M (+890.25%) 1.83M $137.33M +1.2%-1.0% —
$AIG Added +1.64M (+890.25%) 1.83M $136.29M +1.2%-1.0% —
$AMT Added +439.84K (+141.24%) 751.25K $123.79M +7.7%+9.9% —
$AMGN Added +218.06K (+220.60%) 316.92K $114.46M +4.0%+7.4% —
$ADP Added +455.35K (+2623.73%) 472.70K $105.93M +5.0%+4.9% —
$ADP Added +455.35K (+2623.73%) 472.70K $105.16M +5.0%+4.9% —
$ALK Added +1.78M (+929.80%) 1.97M $103.15M +11.9%+32.9% —
$AZN Added +481.53K (+4409.58%) 492.45K $93.38M +3.0%-2.4% —
$AZN Added +481.53K (+4409.58%) 492.45K $89.76M +3.0%-2.4% —
$ADBE Added +231.89K (+176.78%) 363.07K $73.33M -1.1%-16.7% —
$BLDR Added +620.26K (+397.94%) 776.13K $69.45M +5.3%+10.5% —
$ARQT Added +1.98M (+435.36%) 2.43M $63.76M -2.2%+20.0% Read
$AJG Added +192.09K (+227.79%) 276.42K $62.75M +2.4%+8.3% —
$BKNG Added +66K (+23.34%) 348.73K $62.16M +4.5%+13.6% Read
$BLDR Added +620.26K (+397.94%) 776.13K $60.98M +5.3%+10.5% —
$BABA Added +306.66K (+114.20%) 575.19K $59.03M -1.9%-14.3% —

Reduced positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AMD Reduced -950.12K (-20.04%) 3.79M $2.14B +10.2%+29.0% —
$AMZN Reduced -3.14M (-26.19%) 8.85M $2.13B +0.8%-6.9% —
$AVGO Reduced -885.79K (-26.45%) 2.46M $925.25M -2.6%-7.4% —
$BDX Reduced -265.39K (-14.32%) 1.59M $240.28M +2.9%+2.1% —
$BDX Reduced -265.39K (-14.32%) 1.59M $233.96M +2.9%+2.1% —
$AFRM Reduced -1.63M (-37.51%) 2.71M $221.35M -0.9%+9.2% —
$BA Reduced -284.55K (-32.34%) 595.21K $128.84M -0.7%+3.8% —
$BC Reduced -427.95K (-22.27%) 1.49M $125.81M —
$BC Reduced -427.95K (-22.27%) 1.49M $121.90M —
$AAL Reduced -19.81M (-76.30%) 6.15M $111.73M +12.5%+25.6% —
$ATI Reduced -91.81K (-14.61%) 536.48K $107.03M +5.2%+27.0% —
$ATI Reduced -91.81K (-14.61%) 536.48K $105.74M +5.2%+27.0% —
$BAC Reduced -3.20M (-63.57%) 1.83M $104.32M +4.1%+12.9% —
$BAC Reduced -3.20M (-63.57%) 1.83M $100.99M +4.1%+12.9% —
$ALAB Reduced -168.75K (-48.45%) 179.55K $88.77M +31.9%+67.3% —
$AFL Reduced -364.78K (-32.81%) 746.93K $88.66M +1.4%+0.6% —
$AMRZ Reduced -790.77K (-33.80%) 1.55M $82.26M +1.9%+10.2% —
$AMRZ Reduced -790.77K (-33.80%) 1.55M $81.93M +1.9%+10.2% —
$ANET Reduced -288.30K (-42.07%) 397K $67M +8.5%+19.1% —
$AKAM Reduced -478.88K (-48.41%) 510.35K $61.30M -2.4%-11.1% —

All tracked 13F moves by Marshall Wace

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$APP New +223.22K 223.22K $115.20M -3.9%+4.0% —
$APD New +363.51K 363.51K $107.78M -2.0%-4.2% —
$BA Reduced -284.55K (-32.34%) 595.21K $128.84M -0.7%+3.8% —
$BC Reduced -427.95K (-22.27%) 1.49M $125.81M —
$AVGO Reduced -885.79K (-26.45%) 2.46M $925.25M -2.6%-7.4% —
$BDX Reduced -265.39K (-14.32%) 1.59M $240.28M +2.9%+2.1% —
$BDX Reduced -265.39K (-14.32%) 1.59M $233.96M +2.9%+2.1% —
$BC Reduced -427.95K (-22.27%) 1.49M $121.90M —
$BAC Reduced -3.20M (-63.57%) 1.83M $104.32M +4.1%+12.9% —
$BAC Reduced -3.20M (-63.57%) 1.83M $100.99M +4.1%+12.9% —
$ATI Reduced -91.81K (-14.61%) 536.48K $105.74M +5.2%+27.0% —
$ATI Reduced -91.81K (-14.61%) 536.48K $107.03M +5.2%+27.0% —
$ALAB Reduced -168.75K (-48.45%) 179.55K $88.77M +31.9%+67.3% —
$ANET Reduced -288.30K (-42.07%) 397K $67M +8.5%+19.1% —
$AMRZ Reduced -790.77K (-33.80%) 1.55M $81.93M +1.9%+10.2% —
$AMRZ Reduced -790.77K (-33.80%) 1.55M $82.26M +1.9%+10.2% —
$AAL Reduced -19.81M (-76.30%) 6.15M $111.73M +12.5%+25.6% —
$AMZN Reduced -3.14M (-26.19%) 8.85M $2.13B +0.8%-6.9% —
$AKAM Reduced -478.88K (-48.41%) 510.35K $61.30M -2.4%-11.1% —
$AFL Reduced -364.78K (-32.81%) 746.93K $88.66M +1.4%+0.6% —
$AFRM Reduced -1.63M (-37.51%) 2.71M $221.35M -0.9%+9.2% —
$AMD Reduced -950.12K (-20.04%) 3.79M $2.14B +10.2%+29.0% —
$BLDR Added +620.26K (+397.94%) 776.13K $69.45M +5.3%+10.5% —
$BKNG Added +66K (+23.34%) 348.73K $62.16M +4.5%+13.6% Read
$BE Added +890.45K (+630.68%) 1.03M $304.63M +9.6%-0.5% —
$BLDR Added +620.26K (+397.94%) 776.13K $60.98M +5.3%+10.5% —
$BK Added +955.98K (+232.01%) 1.37M $187.64M +3.1%+5.5% —
$BKR Added +1.77M (+89.82%) 3.74M $211.92M +3.0%-2.6% —
$AZN Added +481.53K (+4409.58%) 492.45K $89.76M +3.0%-2.4% —
$ADP Added +455.35K (+2623.73%) 472.70K $105.16M +5.0%+4.9% —
$AZN Added +481.53K (+4409.58%) 492.45K $93.38M +3.0%-2.4% —
$ASML Added +164.94K (+296.46%) 220.57K $435.42M +8.7%+26.0% —
$AJG Added +192.09K (+227.79%) 276.42K $62.75M +2.4%+8.3% —
$ARQT Added +1.98M (+435.36%) 2.43M $63.76M -2.2%+20.0% Read
$AMAT Added +41.80K (+3.88%) 1.12M $782.13M -0.9%+34.3% —
$AAPL Added +1.73M (+25.92%) 8.38M $2.41B +2.9%-1.3% —
$ADI Added +936.50K (+40383.57%) 938.81K $372.88M -4.9%+2.7% —
$AMT Added +439.84K (+141.24%) 751.25K $142.20M +7.7%+9.9% —
$APH Added +1.85M (+375.46%) 2.34M $412.11M +5.6%+26.9% —
$AMGN Added +218.06K (+220.60%) 316.92K $114.46M +4.0%+7.4% —
$AMT Added +439.84K (+141.24%) 751.25K $123.79M +7.7%+9.9% —
$AIG Added +1.64M (+890.25%) 1.83M $136.29M +1.2%-1.0% —
$AS Added +2.64M (+115.54%) 4.93M $166.75M +7.4%+9.3% —
$AMAT Added +41.80K (+3.88%) 1.12M $617.86M -0.9%+34.3% —
$ALNY Added +549.40K (+99.90%) 1.10M $327.71M +3.6%+0.3% —
$ALNY Added +549.40K (+99.90%) 1.10M $319.33M +3.6%+0.3% —
$BABA Added +306.66K (+114.20%) 575.19K $59.03M -1.9%-14.3% —
$ALK Added +1.78M (+929.80%) 1.97M $103.15M +11.9%+32.9% —
$ABNB Added +2.82M (+1310.07%) 3.03M $445.35M -0.4%+4.6% —
$AIG Added +1.64M (+890.25%) 1.83M $137.33M +1.2%-1.0% —
$ADP Added +455.35K (+2623.73%) 472.70K $105.93M +5.0%+4.9% —
$ADBE Added +231.89K (+176.78%) 363.07K $73.33M -1.1%-16.7% —
$ACN Added +1.49M (+6346.45%) 1.51M $185.75M +6.2%-2.1% —
$ABT Added +1.95M (+3338.26%) 2.01M $182.79M +3.5%+5.0% —

13F reports are filed quarterly, up to 45 days after the quarter ends, so they show past holdings. 1W / 1M / 6M = how the stock moved after the filing.

Stocks Marshall Wace holds or traded

Frequently asked questions

What did Marshall Wace buy and sell in its latest 13F?

It opened or added to $AAPL, $AMAT, $AMAT, $ABNB and $ASML; it cut or exited $AMD, $AMZN, $AVGO, $BDX and $BDX.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.

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