Arkolith/Funds/Fred Alger Management, LLC

Fred Alger Management, LLC

CIK 3520Asset manager
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Inactive

Fred Alger Management, LLC holds a focused book of 443 stocks worth $22.8B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened AstraZeneca PLC and trimmed Microsoft Corp. Their largest long position is Nvidia Corp at 13% of the equity book. They also disclosed $1.4M in put options (a bearish bet), shown separately below and excluded from the equity book.

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Use Arkolith to show FRED ALGER MANAGEMENT, LLC's latest
holdings, largest changes, and filing provenance.
Opened
64
new positions
Added to
106
existing
Trimmed
259
reduced
Sold out
76
exited

Concentration

Top-heavy: focused book

Top 5 holdings
37%
Top 10 holdings
56%
Top 20 holdings
70%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

100% mapped to company sectors

Information Technology
57%
Consumer Discretionary
11%
Health Care
10%
Industrials
10%
Utilities
4%
Financials
3%
Communication Services
2%
Materials
1%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

443 positions
#SecurityValueShares% PortLast moveHistory
1NVIDIA Corporation
Equity
$2.9B16.38M
12.5%
+7.1%
Added · +1.1M sh
2Microsoft Corporation
Equity
$1.8B4.99M
8.1%
−0.1%
Reduced · −7K sh
3Amazon.com, Inc.
Equity
$1.5B7.15M
6.5%
+1.4%
Added · +100K sh
4Apple Inc.
Equity
$1.2B4.64M
5.2%
+1.9%
Added · +88K sh
5Alphabet Inc. Class C
Equity
$1.1B3.82M
4.8%
+8.7%
Added · +306K sh
6Meta Platforms Inc Class A
Equity
$1.0B1.78M
4.5%
−9.6%
Reduced · −188K sh
7Nebius Group N.V. Class A
Equity
$996.0M9.60M
4.4%
+21%
Added · +1.7M sh
8Broadcom Inc.
Equity
$912.9M2.95M
4.0%
+2.5%
Added · +73K sh
9Western Digital Corporation
Equity
$719.5M2.66M
3.2%
−0.9%
Reduced · −25K sh
10Tesla, Inc.
Equity
$678.7M1.83M
3.0%
+10%
Added · +173K sh
11AppLovin Corp. Class A
Equity
$466.9M1.17M
2.1%
−30%
Reduced · −499K sh
12QXO, Inc.
Equity
$435.1M22.40M
1.9%
+41%
Added · +6.5M sh
13Talen Energy Corp
Equity
$378.6M1.19M
1.7%
−34%
Reduced · −618K sh
14Natera, Inc.
Equity
$351.3M1.76M
1.5%
−3.6%
Reduced · −66K sh
15GE Vernova Inc.
Equity
$297.6M340.7K
1.3%
−21%
Reduced · −89K sh
16Astera Labs, Inc.
Equity
$282.0M2.57M
1.2%
+33%
Added · +638K sh
17Sea Limited Sponsored ADR Class A
Equity
$279.1M3.37M
1.2%
+22%
Added · +604K sh
18GFL Environmental Inc
Equity
$251.1M6.02M
1.1%
+20%
Added · +995K sh
19Arrowhead Pharmaceuticals, Inc.
Equity
$209.6M3.34M
0.9%
+82%
Added · +1.5M sh
20HEICO Corporation Class A
Equity
$202.9M961.4K
0.9%
+7.7%
Added · +69K sh
21Netflix, Inc.
Equity
$195.5M2.03M
0.9%
−26%
Reduced · −719K sh
22Intuitive Surgical, Inc.
Equity
$178.3M386.7K
0.8%
+10%
Added · +36K sh
23MercadoLibre, Inc.
Equity
$163.8M94.7K
0.7%
+9.3%
Added · +8K sh
24AstraZeneca PLC
Equity
$151.4M768.8K
0.7%
New
New position
25Roku, Inc. Class A
Equity
$150.6M1.59M
0.7%
+12%
Added · +170K sh
26Rocket Companies, Inc. Class A
Equity
$145.2M10.19M
0.6%
~0%
Reduced · −1K sh
27Biogen Inc.
Equity
$134.4M733.2K
0.6%
−8.2%
Reduced · −66K sh
28Figure Technology Solutions, Inc. Class A
Equity
$130.3M3.84M
0.6%
+133%
Added · +2.2M sh
29Vertiv Holdings Co. Class A
Equity
$118.5M472.9K
0.5%
−18%
Reduced · −106K sh
30Cloudflare Inc Class A
Equity
$111.0M538.1K
0.5%
+23%
Added · +100K sh
31Cardinal Health, Inc.
Equity
$110.4M522.5K
0.5%
+29%
Added · +118K sh
32Shopify, Inc. Class A
Equity
$110.4M930.7K
0.5%
+58%
Added · +343K sh
33Eli Lilly and Company
Equity
$109.2M118.8K
0.5%
+18%
Added · +18K sh
34MongoDB, Inc. Class A
Equity
$107.4M438.6K
0.5%
−22%
Reduced · −123K sh
35Welltower Inc.
Equity
$105.5M533.5K
0.5%
+798%
Added · +474K sh
36Dianthus Therapeutics, Inc.
Equity
$97.5M1.16M
0.4%
35×
Added · +1.1M sh
37RBC Bearings Incorporated
Equity
$97.3M179.1K
0.4%
+3.0%
Added · +5K sh
38Palantir Technologies Inc. Class A
Equity
$95.2M651.1K
0.4%
+789%
Added · +578K sh
39DuPont de Nemours, Inc.
Equity
$92.7M2.02M
0.4%
−15%
Reduced · −365K sh
40Boston Scientific Corporation
Equity
$91.3M1.45M
0.4%
+33%
Added · +358K sh
41Arista Networks, Inc.
Equity
$83.8M682.8K
0.4%
New
New position
42Johnson & Johnson
Equity
$81.8M334.6K
0.4%
+416%
Added · +270K sh
43Robinhood Markets, Inc. Class A
Equity
$77.2M1.11M
0.3%
+18%
Added · +168K sh
44NRG Energy, Inc.
Equity
$72.6M497.1K
0.3%
19×
Added · +471K sh
45Ascendis Pharma A/S Sponsored ADR
Equity
$69.7M304.9K
0.3%
−13%
Reduced · −47K sh
46Alphabet Inc. Class A
Equity
$66.6M231.5K
0.3%
−4.8%
Reduced · −12K sh
47Tutor Perini Corporation
Equity
$62.5M809.7K
0.3%
−27%
Reduced · −296K sh
48Constellation Energy Corporation
Equity
$59.2M212.0K
0.3%
−58%
Reduced · −297K sh
49FTAI Aviation Ltd.
Equity
$58.8M239.9K
0.3%
−36%
Reduced · −137K sh
50Guardant Health, Inc.
Equity
$57.5M622.3K
0.3%
+5.5%
Added · +33K sh
Showing 50 of 443 positions

Largest options & derivatives disclosed

Put / call positions from the 13F — totals include every disclosed option leg

Put notional (bearish)$1.4M
TypeUnderlyingNotional valueUnderlying shares
PUT · bearishDJT JAN 2027 30 PUTS$1.4M45K

13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the equity book, weighting, concentration and sector figures above.

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 2026525$22.8B13F-HR
Q4 2025Dec 31, 2025Feb 17, 2026590$25.5B13F-HR
Q3 2025Sep 30, 2025Nov 14, 2025581$25.7B13F-HR
Q2 2025Jun 30, 2025Aug 14, 2025575$22.3B13F-HR
Q1 2025Mar 31, 2025May 16, 2025518$17.6B13F-HR
Q4 2024Dec 31, 2024Feb 14, 2025505$21.0B13F-HR
Q3 2024Sep 30, 2024Nov 14, 2024489$20.6B13F-HR
Q2 2024Jun 30, 2024Aug 14, 2024483$20.6B13F-HR
Q1 2024Mar 31, 2024May 15, 2024499$20.2B13F-HR
Q4 2023Dec 31, 2023Feb 14, 2024499$18.5B13F-HR
Q3 2023Sep 30, 2023Nov 14, 2023516$17.4B13F-HR
Q2 2023Jun 30, 2023Aug 14, 2023564$19.6B13F-HR
Q1 2023Mar 31, 2023May 16, 2023575$18.7B13F-HR/A
Q4 2022Dec 31, 2022Feb 14, 2023576$18.4B13F-HR
Q3 2022Sep 30, 2022Nov 15, 2022580$19.7B13F-HR
Q2 2022Jun 30, 2022Aug 15, 2022563$21.4B13F-HR
Q1 2022Mar 31, 2022May 16, 2022554$31.3B13F-HR
Q4 2021Dec 31, 2021Feb 14, 2022571$39.9B13F-HR
Q3 2021Sep 30, 2021Nov 15, 2021572$41.9B13F-HR
Q2 2021Jun 30, 2021Aug 16, 2021508$42.4B13F-HR
Q1 2021Mar 31, 2021May 17, 2021476$38.2B13F-HR
Q4 2020Dec 31, 2020Feb 16, 2021465$38.4B13F-HR
Q3 2020Sep 30, 2020Nov 13, 2020458$34.4B13F-HR
Amended / restated
  • Q1 2023 · filed May 15, 202313F-HR · superseded

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.