Wellington Management Group LLP Silicon Motion Technology Corp Transaction History

Wellington Management Group LLP

$545 Billion
Q3 2025

A detailed history of Wellington Management Group LLP transactions in Silicon Motion Technology Corp stock. As of the latest transaction made, Wellington Management Group LLP holds 695,956 shares of SIMO stock, worth $60.4 Million. This represents 0.01% of its overall portfolio holdings.

Number of Shares

695,956

Previous 850,000 18.12%

Holding current value

$60.4 Million

Previous $63.9 Million 3.27%

% of portfolio

0.01%

Previous 0.01%

24 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	SELL	$71.17 - $95.06 $11 Million - $14.6 Million	-154,044 Reduced 18.12%	695,956 $66 Million
Q2 2025 Aug 14, 2025	BUY	$38.95 - $75.77 $6.02 Million - $11.7 Million	154,446 Added 22.2%	850,000 $63.9 Million
Q1 2025 May 13, 2025	BUY	$49.58 - $59.71 $34.5 Million - $41.5 Million	695,554 New	695,554 $35.2 Million
Q4 2024 Feb 12, 2025	BUY	$51.13 - $61.14 $11.7 Million - $14 Million	228,333 Added 40.14%	797,192 $43.1 Million
Q3 2024 Nov 14, 2024	SELL	$54.94 - $83.76 $11 Million - $16.8 Million	-200,352 Reduced 26.05%	568,859 $34.6 Million

Q2 2024 Aug 13, 2024	SELL	$71.7 - $84.88 $26.4 Million - $31.3 Million	-368,611 Reduced 32.4%	769,211 $62.3 Million
Q1 2024 May 15, 2024	BUY	$59.45 - $78.15 $67.6 Million - $88.9 Million	1,137,822 New	1,137,822 $87.5 Million
Q4 2023 Feb 12, 2024	BUY	$50.86 - $61.27 $41.7 Million - $50.2 Million	819,536 New	819,536 $50.2 Million
Q3 2023 Nov 14, 2023	BUY	$50.25 - $70.0 $38.1 Million - $53.1 Million	758,640 Added 1250.87%	819,289 $42 Million
Q2 2023 Aug 14, 2023	SELL	$51.63 - $80.62 $587,187 - $916,891	-11,373 Reduced 15.79%	60,649 $4.36 Million
Q1 2023 May 12, 2023	SELL	$59.58 - $69.75 $70,066 - $82,026	-1,176 Reduced 1.61%	72,022 $4.72 Million
Q4 2022 Feb 13, 2023	SELL	$52.11 - $69.2 $257,475 - $341,917	-4,941 Reduced 6.32%	73,198 $4.76 Million
Q3 2022 Nov 14, 2022	SELL	$65.19 - $87.47 $408,610 - $548,261	-6,268 Reduced 7.43%	78,139 $5.09 Million
Q2 2022 Aug 15, 2022	SELL	$65.92 - $95.16 $1.44 Million - $2.08 Million	-21,806 Reduced 20.53%	84,407 $7.06 Million
Q1 2022 May 16, 2022	SELL	$64.92 - $94.97 $51.4 Million - $75.1 Million	-791,026 Reduced 88.16%	106,213 $7.1 Million
Q4 2021 Feb 11, 2022	SELL	$66.37 - $95.03 $2 Million - $2.87 Million	-30,195 Reduced 3.26%	897,239 $85.3 Million
Q3 2021 Nov 15, 2021	SELL	$59.82 - $80.9 $1.82 Million - $2.46 Million	-30,377 Reduced 3.17%	927,434 $64 Million
Q2 2021 Aug 16, 2021	BUY	$62.59 - $72.56 $5.84 Million - $6.77 Million	93,333 Added 10.8%	957,811 $61.4 Million
Q1 2021 May 17, 2021	SELL	$47.19 - $67.27 $3.38 Million - $4.82 Million	-71,708 Reduced 7.66%	864,478 $51.3 Million
Q4 2020 Feb 12, 2021	BUY	$35.5 - $48.15 $4.14 Million - $5.61 Million	116,598 Added 14.23%	936,186 $45.1 Million
Q3 2020 Nov 16, 2020	BUY	$35.18 - $49.31 $737,443 - $1.03 Million	20,962 Added 2.62%	819,588 $31 Million
Q2 2020 Aug 14, 2020	SELL	$36.13 - $49.75 $1.89 Million - $2.61 Million	-52,369 Reduced 6.15%	798,626 $38.9 Million
Q1 2020 May 14, 2020	SELL	$29.88 - $52.56 $15.5 Million - $27.3 Million	-520,105 Reduced 37.93%	850,995 $31.2 Million
Q4 2019 Feb 11, 2020	BUY	$35.46 - $50.71 $48.6 Million - $69.5 Million	1,371,100 New	1,371,100 $69.5 Million

Others Institutions Holding SIMO

# of Institutions

252

Shares Held

24.6M

Call Options Held

601K

Put Options Held

545K

View Full List

About Silicon Motion Technology CORP

Ticker SIMO
Exchange NASDAQ
Sector Technology
Industry Semiconductors
Shares Outstandng 33,045,600
Market Cap $2.87B
Description
Silicon Motion Technology Corporation, together with its subsidiaries, designs, develops, and markets NAND flash controllers for solid-state storage devices. It offers controllers for computing-grade solid state drives (SSDs), which are used in PCs and other client devices; enterprise-grade SSDs used in data centers; eMMC and UFS mobile embedded...

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Wellington Management Group LLP Silicon Motion Technology Corp Transaction History