Mawer Investment Management 13F Holdings & Latest Moves

13F filer · Latest filing May 6, 2026 · SEC CIK 0001538449

Mawer Investment Management reported a 13F portfolio worth $15.45B as of Q1 2026. Latest 13F moves (filed May 6, 2026): 1 new position, 11 added, 34 reduced. Largest change by value: reduced $GOOG ($1.15B held).

13F value (Q1 2026)
$15.45B
New positions
1
Added / reduced
11 / 34
Sold out
0

Top buys and sells in the latest 13F

Biggest new and added positions

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$WAT Added +104.88K (+8.08%) 1.40M $526.42M -4.2%+4.5% —
$JPM Added +98.03K (+9.65%) 1.11M $364.51M -4.7%-0.8% —
$SO Added +1.65M (+93.56%) 3.42M $327.50M -0.4%-0.2% —
$SO Added +1.65M (+93.56%) 3.42M $321.65M -0.4%-0.2% —
$COR Added +412.88K (+66.78%) 1.03M $291.80M +1.2%+9.1% —

Biggest reduced and exited positions

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$GOOG Reduced -402.73K (-10.98%) 3.27M $1.15B +1.0%-7.4% —
$AMZN Reduced -419.91K (-10.32%) 3.65M $877.98M -1.8%-10.5% —
$MSFT Reduced -311.34K (-11.85%) 2.32M $856.34M -2.1%+0.9% —
$APH Reduced -1.10M (-21.61%) 3.99M $702.95M -10.0%+0.2% —
$V Reduced -98.46K (-4.84%) 1.94M $664.48M +0.7%+1.7% —

New position in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$TSEM New +965.03K 965.03K $251.53M +24.9%+8.6% —

Added positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$WAT Added +104.88K (+8.08%) 1.40M $526.42M -4.2%+4.5% —
$JPM Added +98.03K (+9.65%) 1.11M $364.51M -4.7%-0.8% —
$SO Added +1.65M (+93.56%) 3.42M $327.50M -0.4%-0.2% —
$SO Added +1.65M (+93.56%) 3.42M $321.65M -0.4%-0.2% —
$COR Added +412.88K (+66.78%) 1.03M $291.80M +1.2%+9.1% —
$MEDP Added +38.80K (+9.53%) 446.10K $236.25M -0.7%+6.4% —
$NVDA Added +594.58K (+166.58%) 951.51K $188.49M +8.7%-1.2% —
$AEP Added +357.70K (+36.62%) 1.33M $183.97M -2.8%-1.9% —
$SPGI Added +177.02K (+85.89%) 383.11K $160.49M -4.0%+0.4% —
$SPGI Added +177.02K (+85.89%) 383.11K $156.03M -4.0%+0.4% —
$ABNB Added +187.84K (+28.13%) 855.69K $125.61M -4.9%-4.5% Read

Reduced positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$GOOG Reduced -402.73K (-10.98%) 3.27M $1.15B +1.0%-7.4% —
$AMZN Reduced -419.91K (-10.32%) 3.65M $877.98M -1.8%-10.5% —
$MSFT Reduced -311.34K (-11.85%) 2.32M $856.34M -2.1%+0.9% —
$APH Reduced -1.10M (-21.61%) 3.99M $702.95M -10.0%+0.2% —
$V Reduced -98.46K (-4.84%) 1.94M $664.48M +0.7%+1.7% —
$MRSH Reduced -430.10K (-11.01%) 3.48M $579.28M -2.9%+0.9% —
$SHEL Reduced -954.75K (-11.82%) 7.12M $552.11M -2.6%-1.2% —
$AON Reduced -200.60K (-13.58%) 1.28M $416.98M +0.9%+6.6% —
$AER Reduced -593.07K (-18.12%) 2.68M $395.96M -5.1%-9.1% —
$WFC Reduced -205.94K (-4.22%) 4.67M $385.94M -8.0%+2.5% —
$BRKA Reduced -78 (-13.29%) 509 $373.38M +3.1%+3.9% —
$NOC Reduced -162.77K (-19.24%) 683.36K $348.04M -1.4%-2.3% —
$META Reduced -75.40K (-10.96%) 612.80K $345.19M +0.6%-3.2% —
$ICE Reduced -350.29K (-14.41%) 2.08M $256.14M +0.9%-7.8% —
$BKNG Reduced -1.39M (-49.47%) 1.42M $252.66M -7.9%-1.2% —
$MA Reduced -10.95K (-2.36%) 452.21K $232.26M -0.3%-0.2% —
$CME Reduced -109.20K (-9.57%) 1.03M $227.74M +3.1%-10.7% —
$FCN Reduced -994.72K (-43.14%) 1.31M $207.89M —
$FCN Reduced -994.72K (-43.14%) 1.31M $195.36M —
$CPAY Reduced -116.71K (-18.52%) 513.46K $171.12M +8.5%+13.8% —
$UBER Reduced -289.91K (-11.58%) 2.21M $159.75M -5.6%-10.7% —
$FERG Reduced -174.89K (-20.65%) 672.03K $159.49M -7.4%-8.6% —
$SII Reduced -163.82K (-10.81%) 1.35M $156.61M —
$OSIS Reduced -140.97K (-17.54%) 662.63K $153.19M —
$SII Reduced -163.82K (-10.81%) 1.35M $151.81M —
$CDW Reduced -735.31K (-41.15%) 1.05M $147.88M -7.9%+22.8% —
$MLM Reduced -9.27K (-3.50%) 255.68K $147.70M -6.3%-6.3% —
$OSIS Reduced -140.97K (-17.54%) 662.63K $144.92M —
$BWXT Reduced -38.53K (-4.99%) 734.16K $142.90M -3.9%-13.5% —
$AJG Reduced -31.75K (-5.18%) 581.28K $131.96M -2.5%+10.1% —
$TXN Reduced -19.20K (-4.20%) 437.64K $130.45M +5.8%-1.5% —
$PG Reduced -45.46K (-5.07%) 851.23K $124.82M -3.8%-0.9% —
$CACI Reduced -22.05K (-8.95%) 224.21K $116.45M +0.9%+6.4% —
$VZ Reduced -254.08K (-8.51%) 2.73M $115.62M -0.5%-4.4% —

All tracked 13F moves by Mawer Investment Management

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$WFC Reduced -205.94K (-4.22%) 4.67M $385.94M -8.0%+2.5% —
$V Reduced -98.46K (-4.84%) 1.94M $664.48M +0.7%+1.7% —
$VZ Reduced -254.08K (-8.51%) 2.73M $115.62M -0.5%-4.4% —
$PG Reduced -45.46K (-5.07%) 851.23K $124.82M -3.8%-0.9% —
$TXN Reduced -19.20K (-4.20%) 437.64K $130.45M +5.8%-1.5% —
$MA Reduced -10.95K (-2.36%) 452.21K $232.26M -0.3%-0.2% —
$MLM Reduced -9.27K (-3.50%) 255.68K $147.70M -6.3%-6.3% —
$CME Reduced -109.20K (-9.57%) 1.03M $227.74M +3.1%-10.7% —
$CACI Reduced -22.05K (-8.95%) 224.21K $116.45M +0.9%+6.4% —
$BWXT Reduced -38.53K (-4.99%) 734.16K $142.90M -3.9%-13.5% —
$AJG Reduced -31.75K (-5.18%) 581.28K $131.96M -2.5%+10.1% —
$TSEM New +965.03K 965.03K $251.53M +24.9%+8.6% —
$UBER Reduced -289.91K (-11.58%) 2.21M $159.75M -5.6%-10.7% —
$SII Reduced -163.82K (-10.81%) 1.35M $151.81M —
$SII Reduced -163.82K (-10.81%) 1.35M $156.61M —
$SHEL Reduced -954.75K (-11.82%) 7.12M $552.11M -2.6%-1.2% —
$OSIS Reduced -140.97K (-17.54%) 662.63K $153.19M —
$OSIS Reduced -140.97K (-17.54%) 662.63K $144.92M —
$NOC Reduced -162.77K (-19.24%) 683.36K $348.04M -1.4%-2.3% —
$MSFT Reduced -311.34K (-11.85%) 2.32M $856.34M -2.1%+0.9% —
$META Reduced -75.40K (-10.96%) 612.80K $345.19M +0.6%-3.2% —
$MRSH Reduced -430.10K (-11.01%) 3.48M $579.28M -2.9%+0.9% —
$ICE Reduced -350.29K (-14.41%) 2.08M $256.14M +0.9%-7.8% —
$FCN Reduced -994.72K (-43.14%) 1.31M $195.36M —
$FERG Reduced -174.89K (-20.65%) 672.03K $159.49M -7.4%-8.6% —
$FCN Reduced -994.72K (-43.14%) 1.31M $207.89M —
$CPAY Reduced -116.71K (-18.52%) 513.46K $171.12M +8.5%+13.8% —
$CDW Reduced -735.31K (-41.15%) 1.05M $147.88M -7.9%+22.8% —
$BRKA Reduced -78 (-13.29%) 509 $373.38M +3.1%+3.9% —
$BKNG Reduced -1.39M (-49.47%) 1.42M $252.66M -7.9%-1.2% —
$AON Reduced -200.60K (-13.58%) 1.28M $416.98M +0.9%+6.6% —
$APH Reduced -1.10M (-21.61%) 3.99M $702.95M -10.0%+0.2% —
$AMZN Reduced -419.91K (-10.32%) 3.65M $877.98M -1.8%-10.5% —
$GOOG Reduced -402.73K (-10.98%) 3.27M $1.15B +1.0%-7.4% —
$AER Reduced -593.07K (-18.12%) 2.68M $395.96M -5.1%-9.1% —
$WAT Added +104.88K (+8.08%) 1.40M $526.42M -4.2%+4.5% —
$SO Added +1.65M (+93.56%) 3.42M $327.50M -0.4%-0.2% —
$SPGI Added +177.02K (+85.89%) 383.11K $160.49M -4.0%+0.4% —
$SO Added +1.65M (+93.56%) 3.42M $321.65M -0.4%-0.2% —
$SPGI Added +177.02K (+85.89%) 383.11K $156.03M -4.0%+0.4% —
$NVDA Added +594.58K (+166.58%) 951.51K $188.49M +8.7%-1.2% —
$MEDP Added +38.80K (+9.53%) 446.10K $236.25M -0.7%+6.4% —
$JPM Added +98.03K (+9.65%) 1.11M $364.51M -4.7%-0.8% —
$COR Added +412.88K (+66.78%) 1.03M $291.80M +1.2%+9.1% —
$AEP Added +357.70K (+36.62%) 1.33M $183.97M -2.8%-1.9% —
$ABNB Added +187.84K (+28.13%) 855.69K $125.61M -4.9%-4.5% Read

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 Mawer Investment Management holds or traded

Frequently asked questions

What did Mawer Investment Management buy and sell in its latest 13F?

It opened or added to $WAT, $JPM, $SO, $SO and $COR; it cut or exited $GOOG, $AMZN, $MSFT, $APH and $V.

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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