Assenagon Asset Management S.A.

View all activity View 13F on SEC

Data as of Q4 2025

Institutional investor tracked via SEC 13F filings. Portfolio snapshot as of 2025-12-31.SEC EDGAR Source

Assets Under Management

$66.6B

Total Positions

1,120

New This Quarter

115

Filing Period

2025-12-31

Portfolio Allocation

Top holdings by portfolio weight

MSFT7.16%

AAPL7.06%

AMZN6.45%

NVDA5.36%

GOOG2.90%

AMD1.77%

TSLA1.37%

COST1.35%

BRK/B1.23%

ISRG1.20%

Other12.67%

Position Outcomes

Best and worst performing positions by estimated return

Top Winners

WDC15Q held

Western Digital Corp

Avg $30.86 · $5.2M est. P&L

Est. P&L

+470.54%

GE18Q held

GE AEROSPACE

Avg $62.69 · $7.2M est. P&L

Est. P&L

+397.33%

STX14Q held

Seagate Technology Holdings PLC

Avg $64.08 · $1.7M est. P&L

Est. P&L

+337.11%

Top Losers

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View plans

Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.

Top Holdings(Showing 25 of 1120 — sorted by value)

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Activity:

Stock	Shares	Value	Weight	Price Trend	Avg Buy	Est. P&L	Held	Conviction
MSFT Microsoft Corp	10.8M	$5.2B	7.2%	—	$425.26	+14.63%	28 qtrs	Increased 66
AAPL Apple Inc	18.9M	$5.1B	7.1%	—	$207.23	+31.65%	27 qtrs	Increased 71
AMZN Amazon.com Inc	20.3M	$4.7B	6.5%	—	$159.17	+46.09%	28 qtrs	Decreased 0
NVDA NVIDIA Corp	20.9M	$3.9B	5.4%	—	$124.12	+51.10%	26 qtrs	Decreased 0
GOOG Alphabet Inc	6.7M	$2.1B	2.9%	—	$187.34	+67.90%	28 qtrs	Decreased 0
AMD Advanced Micro Devices Inc	6M	$1.3B	1.8%	—	$183.29	+17.49%	25 qtrs	Increased 81
TSLA Tesla Inc	2.2M	$993.6M	1.4%	—	$323.34	+40.54%	21 qtrs	Decreased 0
COST Costco Wholesale Corp	1.1M	$980.9M	1.4%	—	$863.94	+0.06%	28 qtrs	Increased 81
BRK/B Berkshire Hathaway Inc	1.8M	$894.8M	1.2%	—	—	—	28 qtrs	Decreased 0
ISRG Intuitive Surgical Inc	1.5M	$868.7M	1.2%	—	$494.65	+15.77%	26 qtrs	Increased 81
PG Procter & Gamble Co/The	5.5M	$782.6M	1.1%	—	$149.30	-4.20%	28 qtrs	Increased 81
GOOGL Alphabet Inc	2.5M	$774.1M	1.1%	—	$150.35	+108.75%	28 qtrs	Decreased 0
PDD PDD Holdings Inc	6.7M	$763M	1.1%	—	$113.88	-0.05%	24 qtrs	Increased 81
ABBV AbbVie Inc	3M	$675.8M	0.9%	—	$176.22	+29.33%	24 qtrs	Decreased 0
TXN Texas Instruments Inc	3.9M	$675M	0.9%	—	$187.67	-7.14%	28 qtrs	Increased 57
MELI MercadoLibre Inc	333,455	$671.7M	0.9%	—	$2,000.55	+1.02%	18 qtrs	Increased 72
ADBE Adobe Inc	1.9M	$671.1M	0.9%	—	$411.99	-14.44%	28 qtrs	Decreased 0
NFLX Netflix Inc	6.2M	$584.5M	0.8%	—	$92.06	+1.87%	26 qtrs	Increased 72
META Meta Platforms Inc	880,915	$581.5M	0.8%	—	$533.79	+24.76%	28 qtrs	Decreased 0
SNPS Synopsys Inc	1.2M	$557.5M	0.8%	—	$475.64	-0.24%	22 qtrs	Increased 71
AVGO Broadcom Inc	1.6M	$554.8M	0.8%	—	$255.66	+36.84%	18 qtrs	Decreased 0
MA Mastercard Inc	865,523	$494.1M	0.7%	—	$573.03	+0.61%	23 qtrs	Increased 71
AMAT Applied Materials Inc	1.9M	$492.8M	0.7%	—	$186.25	+39.58%	26 qtrs	Decreased 0
INTC Intel Corp	12.6M	$463.3M	0.6%	—	$23.81	+56.67%	28 qtrs	Decreased 0
NU NU HLDGS LTD	27.6M	$461.9M	0.6%	—	$15.08	+11.91%	8 qtrs	Increased 66
Showing 25 of 1,120 results.PROUpgrade to see all →

Accumulation Streaks

Positions with 2+ consecutive quarters of increases — persistent directional conviction.

Security

AMTAMERICAN TOWER CORP

Q1 2024 → Q4 2025+4,481 shares+$210,820

WELLWelltower Inc

Q1 2024 → Q4 2025+7,929 shares+$3M

NETCloudflare Inc

Q3 2024 → Q4 2025+7,006 shares+$1.7M

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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer