Simplex Trading 13F Holdings & Latest Moves

13F filer · Latest filing May 14, 2026 · SEC CIK 0001488542

Simplex Trading reported a 13F portfolio worth $149.08B as of Q1 2026. Latest 13F moves (filed May 14, 2026): 20 new positions, 27 added, 18 reduced. Largest change by value: new $AMZN ($183.99M held).

13F value (Q1 2026)
$149.08B
New positions
20
Added / reduced
27 / 18
Sold out
0

Top buys and sells in the latest 13F

Biggest new and added positions

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AMZN New +764.88K 764.88K $183.99M +0.5%-7.9% —
$AMD Added +204.15K (+361.48%) 260.62K $147.22M -0.0%+21.7% —
$ALAB New +91.87K 91.87K $45.42M +30.3%+70.2% —
$APGE Added +15.01K (+23.90%) 77.81K $10.33M -1.8%+2.7% —
$ADI Added +18.66K (+568.02%) 21.95K $8.72M -10.0%+0.5% —

Biggest reduced and exited positions

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AAPL Reduced -668.96K (-94.39%) 39.78K $11.42M +2.3%-0.6% —
$AMAT Reduced -2.87K (-19.64%) 11.76K $8.22M -2.9%+33.1% —
$AMAT Reduced -2.87K (-19.64%) 11.76K $6.50M -2.9%+33.1% —
$AAOI Reduced -123K (-75.51%) 39.90K $5.82M -13.1%-5.9% —
$AAP Reduced -22.73K (-24.77%) 69.03K $4.30M +17.9%+22.8% —

New positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AMZN New +764.88K 764.88K $183.99M +0.5%-7.9% —
$ALAB New +91.87K 91.87K $45.42M +30.3%+70.2% —
$APP New +7.61K 7.61K $3.93M +0.2%+7.4% —
$ABSI New +227.04K 227.04K $2.53M -8.1%+31.2% —
$ABCL New +201.24K 201.24K $1.61M +16.8%+19.5% —
$ABSI New +227.04K 227.04K $1.48M -8.1%+31.2% —
$AEO New +64.99K 64.99K $1.10M +6.5%+18.8% —
$ABCL New +201.24K 201.24K $1.07M +16.8%+19.5% —
$ACHC New +33.46K 33.46K $931.19K —
$ACHC New +33.46K 33.46K $832.82K —
$ALKS New +13.14K 13.14K $688.56K -3.7%+15.6% —
$ALKS New +13.14K 13.14K $593.05K -3.7%+15.6% —
$ADP New +2.60K 2.60K $583.11K +5.6%+7.9% —
$ADP New +2.60K 2.60K $578.83K +5.6%+7.9% —
$AI New +58.11K 58.11K $519.48K +3.3%+22.1% —
$AMG New +1.45K 1.45K $510.82K +0.2%+16.8% —
$AMG New +1.45K 1.45K $499.14K +0.2%+16.8% —
$AMPY New +114.80K 114.80K $494.45K -1.0%-19.2% —
$ADMA New +54.92K 54.92K $484.92K -0.5%0.0% Read
$AMPY New +114.80K 114.80K $461.77K -1.0%-19.2% —

Added positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AMD Added +204.15K (+361.48%) 260.62K $147.22M -0.0%+21.7% —
$APGE Added +15.01K (+23.90%) 77.81K $10.33M -1.8%+2.7% —
$ADI Added +18.66K (+568.02%) 21.95K $8.72M -10.0%+0.5% —
$APGE Added +15.01K (+23.90%) 77.81K $6.96M -1.8%+2.7% —
$AMT Added +8.78K (+59.57%) 23.51K $4.45M +7.8%+10.0% —
$AMT Added +8.78K (+59.57%) 23.51K $3.87M +7.8%+10.0% —
$AG Added +212.14K (+2279.34%) 221.44K $3.76M -12.1%-16.5% —
$AG Added +212.14K (+2279.34%) 221.44K $3.74M -12.1%-16.5% —
$AME Added +5.96K (+120.63%) 10.91K $2.65M -3.9%-0.6% —
$ADBE Added +10.59K (+547.44%) 12.53K $2.53M +3.0%-12.9% —
$AEM Added +4.68K (+43.98%) 15.33K $2.44M -7.7%-10.6% —
$APD Added +3.39K (+74.36%) 7.96K $2.36M -3.2%-5.6% —
$AEM Added +4.68K (+43.98%) 15.33K $2.33M -7.7%-10.6% —
$AGIO Added +31.25K (+503.35%) 37.46K $1.42M +0.2%+10.8% —
$ADTN Added +82.74K (+557.27%) 97.58K $1.35M —
$ALKT Added +60.01K (+2646.08%) 62.28K $1.07M +1.5%-7.9% —
$AMRZ Added +1.80K (+11.37%) 17.68K $939.21K -0.8%+6.1% —
$AMRZ Added +1.80K (+11.37%) 17.68K $935.50K -0.8%+6.1% —
$ALKT Added +60.01K (+2646.08%) 62.28K $917.40K +1.5%-7.9% —
$ACI Added +20.93K (+58.41%) 56.75K $877.98K -1.4%-10.0% —
$ACI Added +20.93K (+58.41%) 56.75K $749.15K -1.4%-10.0% —
$ALLY Added +14.44K (+3208.89%) 14.89K $694.54K +0.9%+7.2% —
$AGRO Added +6.57K (+12.62%) 58.68K $685.98K +4.6%-16.3% —
$ANDE Added +9.41K (+4090.43%) 9.64K $682.27K -2.7%-3.3% —
$ANDE Added +9.41K (+4090.43%) 9.64K $670.08K -2.7%-3.3% —
$ALLY Added +14.44K (+3208.89%) 14.89K $652.63K +0.9%+7.2% —
$AGRO Added +6.57K (+12.62%) 58.68K $560.40K +4.6%-16.3% —

Reduced positions in the latest 13F

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AAPL Reduced -668.96K (-94.39%) 39.78K $11.42M +2.3%-0.6% —
$AMAT Reduced -2.87K (-19.64%) 11.76K $8.22M -2.9%+33.1% —
$AMAT Reduced -2.87K (-19.64%) 11.76K $6.50M -2.9%+33.1% —
$AAOI Reduced -123K (-75.51%) 39.90K $5.82M -13.1%-5.9% —
$AAP Reduced -22.73K (-24.77%) 69.03K $4.30M +17.9%+22.8% —
$AAP Reduced -22.73K (-24.77%) 69.03K $4.20M +17.9%+22.8% —
$AAL Reduced -519.64K (-74.59%) 176.98K $3.21M +7.0%+21.7% —
$ACMR Reduced -86.49K (-77.95%) 24.46K $3.06M +13.3%+50.7% —
$ALGN Reduced -5.98K (-26.26%) 16.79K $2.97M +1.6%+11.0% —
$ALGN Reduced -5.98K (-26.26%) 16.79K $2.80M +1.6%+11.0% —
$AES Reduced -136.64K (-42.83%) 182.42K $2.68M +1.6%+1.5% —
$AES Reduced -136.64K (-42.83%) 182.42K $2.67M +1.6%+1.5% —
$APLD Reduced -164.93K (-70.58%) 68.73K $2.56M +2.8%-0.5% —
$ACMR Reduced -86.49K (-77.95%) 24.46K $2.24M +13.3%+50.7% —
$AKAM Reduced -32.07K (-63.54%) 18.40K $2.18M -6.1%-13.8% —
$ACHR Reduced -185.67K (-42.43%) 251.90K $1.19M -4.5%-13.4% —
$APPS Reduced -37.49K (-46.23%) 43.61K $562.58K +5.9%+133.5% Read
$APPS Reduced -37.49K (-46.23%) 43.61K $482.77K +5.9%+133.5% Read

All tracked 13F moves by Simplex Trading

FiledTicker MoveChangeShares heldValue held1W1M6MStory
$AI New +58.11K 58.11K $519.48K +3.3%+22.1% —
$ADP New +2.60K 2.60K $578.83K +5.6%+7.9% —
$ALAB New +91.87K 91.87K $45.42M +30.3%+70.2% —
$APP New +7.61K 7.61K $3.93M +0.2%+7.4% —
$AMPY New +114.80K 114.80K $494.45K -1.0%-19.2% —
$AMPY New +114.80K 114.80K $461.77K -1.0%-19.2% —
$AMG New +1.45K 1.45K $510.82K +0.2%+16.8% —
$AEO New +64.99K 64.99K $1.10M +6.5%+18.8% —
$AMZN New +764.88K 764.88K $183.99M +0.5%-7.9% —
$ALKS New +13.14K 13.14K $593.05K -3.7%+15.6% —
$ALKS New +13.14K 13.14K $688.56K -3.7%+15.6% —
$AMG New +1.45K 1.45K $499.14K +0.2%+16.8% —
$ADP New +2.60K 2.60K $583.11K +5.6%+7.9% —
$ADMA New +54.92K 54.92K $484.92K -0.5%0.0% Read
$ACHC New +33.46K 33.46K $832.82K —
$ACHC New +33.46K 33.46K $931.19K —
$ABSI New +227.04K 227.04K $1.48M -8.1%+31.2% —
$ABSI New +227.04K 227.04K $2.53M -8.1%+31.2% —
$ABCL New +201.24K 201.24K $1.07M +16.8%+19.5% —
$ABCL New +201.24K 201.24K $1.61M +16.8%+19.5% —
$AES Reduced -136.64K (-42.83%) 182.42K $2.67M +1.6%+1.5% —
$APPS Reduced -37.49K (-46.23%) 43.61K $562.58K +5.9%+133.5% Read
$ACHR Reduced -185.67K (-42.43%) 251.90K $1.19M -4.5%-13.4% —
$APPS Reduced -37.49K (-46.23%) 43.61K $482.77K +5.9%+133.5% Read
$AAOI Reduced -123K (-75.51%) 39.90K $5.82M -13.1%-5.9% —
$AMAT Reduced -2.87K (-19.64%) 11.76K $8.22M -2.9%+33.1% —
$APLD Reduced -164.93K (-70.58%) 68.73K $2.56M +2.8%-0.5% —
$AAPL Reduced -668.96K (-94.39%) 39.78K $11.42M +2.3%-0.6% —
$AAL Reduced -519.64K (-74.59%) 176.98K $3.21M +7.0%+21.7% —
$AMAT Reduced -2.87K (-19.64%) 11.76K $6.50M -2.9%+33.1% —
$ALGN Reduced -5.98K (-26.26%) 16.79K $2.80M +1.6%+11.0% —
$ALGN Reduced -5.98K (-26.26%) 16.79K $2.97M +1.6%+11.0% —
$AKAM Reduced -32.07K (-63.54%) 18.40K $2.18M -6.1%-13.8% —
$AES Reduced -136.64K (-42.83%) 182.42K $2.68M +1.6%+1.5% —
$AAP Reduced -22.73K (-24.77%) 69.03K $4.30M +17.9%+22.8% —
$ACMR Reduced -86.49K (-77.95%) 24.46K $2.24M +13.3%+50.7% —
$ACMR Reduced -86.49K (-77.95%) 24.46K $3.06M +13.3%+50.7% —
$AAP Reduced -22.73K (-24.77%) 69.03K $4.20M +17.9%+22.8% —
$ANDE Added +9.41K (+4090.43%) 9.64K $670.08K -2.7%-3.3% —
$AG Added +212.14K (+2279.34%) 221.44K $3.76M -12.1%-16.5% —
$APGE Added +15.01K (+23.90%) 77.81K $10.33M -1.8%+2.7% —
$APGE Added +15.01K (+23.90%) 77.81K $6.96M -1.8%+2.7% —
$ANDE Added +9.41K (+4090.43%) 9.64K $682.27K -2.7%-3.3% —
$ADI Added +18.66K (+568.02%) 21.95K $8.72M -10.0%+0.5% —
$AMT Added +8.78K (+59.57%) 23.51K $4.45M +7.8%+10.0% —
$AMRZ Added +1.80K (+11.37%) 17.68K $935.50K -0.8%+6.1% —
$AMRZ Added +1.80K (+11.37%) 17.68K $939.21K -0.8%+6.1% —
$AME Added +5.96K (+120.63%) 10.91K $2.65M -3.9%-0.6% —
$AMT Added +8.78K (+59.57%) 23.51K $3.87M +7.8%+10.0% —
$ALLY Added +14.44K (+3208.89%) 14.89K $694.54K +0.9%+7.2% —
$ALLY Added +14.44K (+3208.89%) 14.89K $652.63K +0.9%+7.2% —
$ALKT Added +60.01K (+2646.08%) 62.28K $917.40K +1.5%-7.9% —
$ALKT Added +60.01K (+2646.08%) 62.28K $1.07M +1.5%-7.9% —
$ACI Added +20.93K (+58.41%) 56.75K $749.15K -1.4%-10.0% —
$APD Added +3.39K (+74.36%) 7.96K $2.36M -3.2%-5.6% —
$AGRO Added +6.57K (+12.62%) 58.68K $685.98K +4.6%-16.3% —
$AEM Added +4.68K (+43.98%) 15.33K $2.33M -7.7%-10.6% —
$AGIO Added +31.25K (+503.35%) 37.46K $1.42M +0.2%+10.8% —
$AG Added +212.14K (+2279.34%) 221.44K $3.74M -12.1%-16.5% —
$AEM Added +4.68K (+43.98%) 15.33K $2.44M -7.7%-10.6% —
$AMD Added +204.15K (+361.48%) 260.62K $147.22M -0.0%+21.7% —
$ADTN Added +82.74K (+557.27%) 97.58K $1.35M —
$ADBE Added +10.59K (+547.44%) 12.53K $2.53M +3.0%-12.9% —
$AGRO Added +6.57K (+12.62%) 58.68K $560.40K +4.6%-16.3% —
$ACI Added +20.93K (+58.41%) 56.75K $877.98K -1.4%-10.0% —

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 Simplex Trading holds or traded

Frequently asked questions

What did Simplex Trading buy and sell in its latest 13F?

It opened or added to $AMZN, $AMD, $ALAB, $APGE and $ADI; it cut or exited $AAPL, $AMAT, $AMAT, $AAOI and $AAP.

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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