Arkolith/Funds/Adage Capital Partners GP, L.L.C.

Adage Capital Partners GP, L.L.C.

CIK 1165408Hedge fund
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Inactive

Adage Capital Partners GP, L.L.C. holds a diversified book of 954 stocks worth $64.8B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Takeda Pharmaceutic-SP ADR and trimmed Nvidia Corp. Their largest long position is Nvidia Corp at 6% of the equity book. They also disclosed $48.2M in put options (a bearish bet), shown separately below and excluded from the equity book.

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Use Arkolith to show ADAGE CAPITAL PARTNERS GP, L.L.C.'s latest
holdings, largest changes, and filing provenance.
Opened
213
new positions
Added to
278
existing
Trimmed
387
reduced
Sold out
147
exited

Concentration

Top-heavy: diversified book

Top 5 holdings
20%
Top 10 holdings
28%
Top 20 holdings
37%

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

Direct sector allocation

99% mapped to company sectors

Information Technology
34%
Health Care
14%
Financials
13%
Consumer Discretionary
9%
Industrials
9%
Energy
6%
Utilities
3%
Materials
3%

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.

954 positions
#SecurityValueShares% PortLast moveHistory
1Nvidia Corporation
COM
$3.9B22.10M
5.9%
−0.7%
Reduced · −159K sh
2Apple Inc
COM
$3.3B13.05M
5.1%
−1.4%
Reduced · −180K sh
3Microsoft Corp
COM
$2.4B6.58M
3.8%
−0.8%
Reduced · −52K sh
4Amazon Com Inc
COM
$1.9B9.16M
2.9%
+1.0%
Added · +92K sh
5Alphabet Inc
CAP STK CL A
$1.5B5.22M
2.3%
−0.7%
Reduced · −38K sh
6Broadcom Inc
COM
$1.3B4.11M
2.0%
−2.6%
Reduced · −110K sh
7Meta Platforms Inc
CL A
$1.2B2.06M
1.8%
+2.1%
Added · +43K sh
8Alphabet Inc
CAP STK CL C
$1.2B4.10M
1.8%
−1.8%
Reduced · −75K sh
9Tesla Inc
COM
$897.6M2.41M
1.4%
−2.4%
Reduced · −58K sh
10Eli Lilly & Co
COM
$880.1M956.8K
1.4%
+15%
Added · +125K sh
11Berkshire Hathaway Inc Del
CL B NEW
$804.0M1.68M
1.2%
+2.1%
Added · +34K sh
12ConocoPhillips
COM
$794.5M6.02M
1.2%
−14%
Reduced · −1.0M sh
13JPMorgan Chase & Co
COM
$710.5M2.42M
1.1%
−0.5%
Reduced · −13K sh
14Johnson & Johnson
COM
$602.1M2.46M
0.9%
+11%
Added · +252K sh
15Revolution Medicines Inc
COM
$532.5M5.48M
0.8%
+148%
Added · +3.3M sh
16Chevron Corporation
COM
$517.4M2.50M
0.8%
+40%
Added · +721K sh
17Walmart Inc
COM
$455.1M3.66M
0.7%
−5.5%
Reduced · −211K sh
18Visa Inc
COM CL A
$450.0M1.49M
0.7%
−1.2%
Reduced · −18K sh
19Procter & Gamble Co
COM
$406.9M2.82M
0.6%
−0.2%
Reduced · −5K sh
20Costco Wholesale Corporation
COM
$396.3M397.7K
0.6%
+2.1%
Added · +8K sh
21Exxon Mobil Corp
COM
$376.5M2.22M
0.6%
−17%
Reduced · −443K sh
22Micron Technology Inc
COM
$373.5M1.11M
0.6%
−0.5%
Reduced · −5K sh
23Royalty Pharma PLC
SHS CLASS A
$358.8M7.48M
0.6%
−36%
Reduced · −4.3M sh
24Mastercard Incorporated
CL A
$356.6M713.6K
0.6%
−2.3%
Reduced · −17K sh
25Centessa Pharmaceuticals PLC
SPONSORED ADS
$354.5M8.93M
0.5%
−21%
Reduced · −2.4M sh
26Roivant Sciences Ltd
SHS
$354.4M12.79M
0.5%
+20%
Added · +2.1M sh
27Netflix Inc.
COM
$349.3M3.63M
0.5%
−10.0%
Reduced · −403K sh
28Merck & Co Inc
COM
$323.3M2.69M
0.5%
~0%
Reduced · −411 sh
29Abbvie Inc
COM
$319.8M1.47M
0.5%
−2.5%
Reduced · −38K sh
30Home Depot Inc
COM
$313.7M953.9K
0.5%
−10%
Reduced · −108K sh
31Bank America Corp
COM
$312.0M6.40M
0.5%
−1.6%
Reduced · −106K sh
32Cisco Sys Inc
COM
$301.4M3.88M
0.5%
−0.6%
Reduced · −23K sh
33Palantir Technologies Inc
CL A
$299.3M2.05M
0.5%
−0.9%
Reduced · −18K sh
34Ge Aerospace
COM NEW
$293.6M1.03M
0.5%
+17%
Added · +148K sh
35Ovintiv Inc
COM
$291.3M4.91M
0.4%
−10%
Reduced · −555K sh
36CSX Corp
COM
$290.9M7.09M
0.4%
+85%
Added · +3.3M sh
37Boston Scientific Corp
COM
$290.7M4.63M
0.4%
+122%
Added · +2.6M sh
38Coca Cola Co
COM
$289.2M3.80M
0.4%
+11%
Added · +377K sh
39Coterra Energy Inc
COM
$288.8M8.22M
0.4%
+649%
Added · +7.1M sh
40Oracle Corp
COM
$282.3M1.92M
0.4%
+2.6%
Added · +49K sh
41Caterpillar Inc
COM
$274.0M386.8K
0.4%
+0.6%
Added · +2K sh
42RTX Corporation
COM
$272.5M1.41M
0.4%
+24%
Added · +270K sh
43Advanced Micro Devices Inc
COM
$269.7M1.33M
0.4%
−4.3%
Reduced · −59K sh
44Thermo Fisher Scientific Inc
COM
$268.3M545.8K
0.4%
−3.3%
Reduced · −18K sh
45Tango Therapeutics Inc
COM
$268.0M12.81M
0.4%
+21%
Added · +2.2M sh
46Praxis Precision Medicines I
COM NEW
$262.8M815.7K
0.4%
−15%
Reduced · −150K sh
47Unitedhealth Group Inc
COM
$258.8M956.5K
0.4%
+11%
Added · +92K sh
48Lam Research Corp
COM NEW
$247.4M1.16M
0.4%
−10%
Reduced · −134K sh
49Norfolk Southn Corp
COM
$245.1M854.0K
0.4%
+7.0%
Added · +56K sh
50Viper Energy Inc
CL A
$235.2M5.00M
0.4%
−12%
Reduced · −707K sh
Showing 50 of 954 positions

Largest options & derivatives disclosed

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

Put notional (bearish)$48.2M
TypeUnderlyingNotional valueUnderlying shares
PUT · bearishUNITEDHEALTH GROUP INCUNH$32.5M120K
PUT · bearishBOSTON SCIENTIFIC CORPBSX$15.7M250K

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, 2026956$64.8B13F-HR
Q4 2025Dec 31, 2025Feb 17, 2026905$66.1B13F-HR
Q3 2025Sep 30, 2025Nov 14, 2025872$63.1B13F-HR
Q2 2025Jun 30, 2025Aug 14, 2025843$59.3B13F-HR
Q1 2025Mar 31, 2025May 15, 2025837$54.0B13F-HR
Q4 2024Dec 31, 2024Feb 14, 2025869$57.2B13F-HR
Q3 2024Sep 30, 2024Nov 14, 2024864$56.6B13F-HR
Q2 2024Jun 30, 2024Aug 14, 2024860$54.0B13F-HR
Q1 2024Mar 31, 2024May 15, 2024864$53.0B13F-HR
Q4 2023Dec 31, 2023Feb 14, 2024842$48.3B13F-HR
Q3 2023Sep 30, 2023Nov 14, 2023859$44.1B13F-HR
Q2 2023Jun 30, 2023Aug 14, 2023864$46.0B13F-HR
Q1 2023Mar 31, 2023May 15, 2023913$44.6B13F-HR
Q4 2022Dec 31, 2022Feb 14, 2023973$41.8B13F-HR
Q3 2022Sep 30, 2022Nov 14, 20221,047$40.3B13F-HR
Q2 2022Jun 30, 2022Aug 15, 20221,075$43.6B13F-HR
Q1 2022Mar 31, 2022May 16, 20221,080$52.7B13F-HR
Q4 2021Dec 31, 2021Feb 14, 20221,018$55.5B13F-HR
Q3 2021Sep 30, 2021Nov 15, 20211,015$50.8B13F-HR
Q2 2021Jun 30, 2021Aug 16, 20211,010$51.1B13F-HR
Q1 2021Mar 31, 2021May 17, 2021951$49.0B13F-HR
Q4 2020Dec 31, 2020Feb 16, 2021801$45.9B13F-HR
Q3 2020Sep 30, 2020Nov 16, 2020748$39.9B13F-HR
Q2 2020Jun 30, 2020Aug 14, 2020724$39.1B13F-HR

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.