Arkolith/Funds/Aigen Investment Management, LP

Aigen Investment Management, LP

CIK 1741224
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

Aigen Investment Management, LP holds a diversified book of 496 stocks worth $389.2M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened SEMPRA and trimmed BANK NEW YORK MELLON CORP. Their largest long position is HOME DEPOT INC at 2% of the equity book.

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Use Arkolith to show AIGEN INVESTMENT MANAGEMENT, LP's latest
holdings, largest changes, and filing provenance.
Opened
205
new positions
Added to
179
existing
Trimmed
112
reduced
Sold out
336
exited

Concentration

Top-heavy: diversified book

Top 5 holdings
7%
Top 10 holdings
12%
Top 20 holdings
21%

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

Direct sector allocation

27% mapped to company sectors

ETF / fund or unclassified
73%
Industrials
5%
Financials
5%
Energy
4%
Utilities
4%
Health Care
3%
Consumer Discretionary
2%
Communication Services
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
  • BLACKROCK INC
    −93%$6.3M
  • MICROSOFT CORP
    −81%$5.0M
  • AMAZON COM INC
    −95%$4.5M
  • −91%$2.8M
  • ICICI BANK LIMITED
    −60%$2.5M
  • −68%$2.0M

Holdings: largest first

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

496 positions
#SecurityValueShares% PortLast moveHistory
1Home Depot Inc
COM
$6.2M18.8K
1.6%
11×
Added · +17K sh
2Sempra
COM
$6.0M62.0K
1.5%
New
New position
3Huntington Bancshares Inc
COM
$5.2M331.6K
1.3%
+38%
Added · +92K sh
4Air Products And Chemicals I
COM
$4.6M15.8K
1.2%
New
New position
5Visa Inc
COM CL A
$4.5M15.0K
1.2%
24×
Added · +14K sh
6Capital One Finl Corp
COM
$4.5M24.5K
1.1%
Added
Added · +24K sh
7Fedex Corp
COM
$4.3M12.0K
1.1%
New
New position
8Mastercard Incorporated
CL A
$4.1M8.1K
1.0%
New
New position
9Analog Devices Inc
COM
$4.0M12.6K
1.0%
New
New position
10Halliburton Co
COM
$3.8M98.5K
1.0%
New
New position
11Elevance Health Inc Formerly
COM
$3.8M13.0K
1.0%
New
New position
12Booking Holdings Inc
COM
$3.7M890
1.0%
Added
Added · +890 sh
13Intuitive Surgical Inc
COM NEW
$3.6M7.7K
0.9%
13×
Added · +7K sh
14Thermo Fisher Scientific Inc
COM
$3.4M7.0K
0.9%
Added
Added · +7K sh
15Bank New York Mellon Corp
COM
$3.4M28.5K
0.9%
−3.2%
Reduced · −943 sh
16State STR Corp
COM
$3.3M26.4K
0.9%
New
New position
17Ge Aerospace
COM NEW
$3.3M11.6K
0.8%
+12%
Added · +1K sh
18Lockheed Martin Corp
COM
$3.3M5.4K
0.8%
New
New position
19Baker Hughes Company
CL A
$3.2M53.2K
0.8%
New
New position
20Marriott Intl Inc New
CL A
$3.2M9.8K
0.8%
New
New position
21Smucker J M Co
COM NEW
$3.2M32.7K
0.8%
New
New position
22Nu Hldgs Ltd
ORD SHS CL A
$2.9M204.0K
0.8%
+846%
Added · +182K sh
23Servicenow Inc
COM
$2.9M27.6K
0.7%
New
New position
24Costco Wholesale Corporation
COM
$2.8M2.8K
0.7%
+3.4%
Added · +92 sh
25McKesson Corp
COM
$2.8M3.2K
0.7%
+156%
Added · +2K sh
26Occidental Pete Corp
COM
$2.8M43.0K
0.7%
New
New position
27American Express Co
COM
$2.7M9.1K
0.7%
+216%
Added · +6K sh
28Expand Energy Corporation
COM
$2.7M25.0K
0.7%
New
New position
29Adobe Inc
COM
$2.7M11.2K
0.7%
12×
Added · +10K sh
30Nvidia Corporation
COM
$2.6M15.2K
0.7%
−36%
Reduced · −9K sh
31Parker-Hannifin Corp
COM
$2.6M2.9K
0.7%
−2.0%
Reduced · −60 sh
32Gilead Sciences Inc
COM
$2.6M18.5K
0.7%
New
New position
33Willis Towers Watson PLC Ltd
SHS
$2.5M8.6K
0.6%
New
New position
343M Co
COM
$2.4M16.4K
0.6%
Added
Added · +16K sh
35T-Mobile US Inc
COM
$2.4M11.3K
0.6%
Added
Added · +11K sh
36Onemain Hldgs Inc
COM
$2.3M43.9K
0.6%
Added
Added · +44K sh
37Tapestry Inc
COM
$2.3M16.5K
0.6%
New
New position
38Valero Energy Corp
COM
$2.2M8.9K
0.6%
Added
Added · +9K sh
39Crowdstrike Hldgs Inc
CL A
$2.2M5.6K
0.6%
New
New position
40Tractor Supply Co
COM
$2.2M48.1K
0.6%
New
New position
41Dicks Sporting Goods Inc
COM
$2.2M11.0K
0.6%
New
New position
42Ovintiv Inc
COM
$2.1M35.6K
0.5%
+613%
Added · +31K sh
43American Tower Corp
COM
$2.1M12.2K
0.5%
+68%
Added · +5K sh
44Doordash Inc
CL A
$2.1M13.9K
0.5%
Added
Added · +14K sh
45JPMorgan Chase & Co
COM
$2.1M7.1K
0.5%
New
New position
46Airbnb Inc
COM CL A
$2.1M16.5K
0.5%
Added
Added · +16K sh
47Vail Resorts Inc
COM
$2.1M16.1K
0.5%
+26%
Added · +3K sh
48Cytokinetics Inc
COM NEW
$2.1M31.2K
0.5%
+461%
Added · +26K sh
49Shell PLC
SPON ADS
$2.1M22.1K
0.5%
New
New position
50Ati Inc
COM
$2.0M14.1K
0.5%
New
New position
Showing 50 of 496 positions

Filing history

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

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 2026496$389.2M13F-HR
Q4 2025Dec 31, 2025Feb 13, 2026550$432.0M13F-HR
Q3 2025Sep 30, 2025Nov 14, 2025764$646.1M13F-HR
Q2 2025Jun 30, 2025Aug 12, 2025750$729.6M13F-HR
Q1 2025Mar 31, 2025May 12, 2025727$626.9M13F-HR
Q4 2024Dec 31, 2024Feb 6, 2025697$567.2M13F-HR
Q3 2024Sep 30, 2024Nov 5, 2024687$509.6M13F-HR
Q2 2024Jun 30, 2024Aug 9, 2024733$514.3M13F-HR
Q1 2024Mar 31, 2024May 14, 2024645$459.0M13F-HR
Q4 2023Dec 31, 2023Feb 9, 2024757$560.7M13F-HR
Q3 2023Sep 30, 2023Nov 13, 2023784$530.7M13F-HR
Q2 2023Jun 30, 2023Aug 14, 2023711$676.8M13F-HR
Q1 2023Mar 31, 2023May 15, 2023592$726.8M13F-HR
Q4 2022Dec 31, 2022Feb 10, 2023504$706.8M13F-HR
Q3 2022Sep 30, 2022Nov 9, 2022569$696.8M13F-HR
Q2 2022Jun 30, 2022Aug 2, 2022509$595.1M13F-HR
Q1 2022Mar 31, 2022May 5, 2022513$580.1M13F-HR
Q4 2021Dec 31, 2021Feb 11, 20221,021$1.6B13F-HR
Q3 2021Sep 30, 2021Nov 12, 2021450$521.3M13F-HR
Q2 2021Jun 30, 2021Aug 10, 2021431$573.5M13F-HR
Q1 2021Mar 31, 2021May 11, 2021592$755.0M13F-HR
Q4 2020Dec 31, 2020Feb 12, 2021743$766.4M13F-HR
Q3 2020Sep 30, 2020Nov 6, 2020833$783.5M13F-HR
Q2 2020Jun 30, 2020Aug 10, 2020777$779.5M13F-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. The performance line is a simulation of the disclosed long book, not an audited return.