CIK: 0001741224
Total reported value
$389.2M
Reporting period: 2026-03-31 · Number of holdings: 496
Aigen Investment Management, LP disclosed 496 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $389.2M and a quarterly turnover rate of 142.4%.
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Aigen Investment Management, LP's disclosed holdings carry a Herfindahl concentration index of 0.005 — mathematically equivalent to about 207 equally-sized positions, well below its 496 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 1.18), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Trim BLK
-93.0% -$7.1M
Trim MSFT
-80.9% -$6.8M
Add HD
+1014.3% $5.6M
Trim AMZN
-94.7% -$5.0M
Add V
+2262.3% $4.3M
Add ISRG
+1240.3% $3.2M
Showing top 200 holdings (of 496 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | HD | Home Depot INC | Stock-Consumer Disc | 1.59% | +1.46% | +1014.33% | |
| 2 | SRE | Sempra | Stock-Utilities | 1.55% | +1.55% | NEW | |
| 3 | HBAN | Huntington Bancshares INC | Stock-Financials | 1.33% | — | +38.25% | |
| 4 | APD | Air Products & Chemicals INC | Stock-Materials | 1.18% | +1.18% | NEW | |
| 5 | V | Visa Inc-class A Shares | Stock-Financials | 1.17% | +1.12% | +2262.32% | |
| 6 | COF | Capital One Financial CORP | Stock-Financials | 1.15% | +1.15% | NEW | |
| 7 | FDX | Fedex CORP | Stock-Industrials | 1.10% | +1.10% | NEW | |
| 8 | MA | Mastercard INC - A | Stock-Financials | 1.04% | +1.04% | NEW | |
| 9 | ADI | Analog Devices INC | Stock-Tech | 1.03% | +1.03% | NEW | |
| 10 | HAL | Halliburton Co | Stock-Energy | 0.99% | +0.99% | NEW | |
| 11 | ELV | Elevance Health INC | Stock-Healthcare | 0.98% | +0.98% | NEW | |
| 12 | BKNG | Booking Holdings INC | Stock-Consumer Disc | 0.96% | +0.96% | NEW | |
| 13 | ISRG | Intuitive Surgical INC | Stock-Healthcare | 0.92% | +0.84% | +1240.31% | |
| 14 | TMO | Thermo Fisher Scientific INC | Stock-Healthcare | 0.88% | +0.88% | NEW | |
| 15 | BNY | Bank Of New York Mellon CORP | Stock-Financials | 0.87% | — | -3.20% | |
| 16 | STT | State Street CORP | Stock-Financials | 0.86% | +0.86% | NEW | |
| 17 | GE | General Electric | Stock-Industrials | 0.84% | — | +11.83% | |
| 18 | LMT | Lockheed Martin CORP | Stock-Industrials | 0.84% | +0.84% | NEW | |
| 19 | BKR | Baker Hughes Co | Stock-Energy | 0.83% | +0.83% | NEW | |
| 20 | MAR | Marriott International -cl A | Stock-Consumer Disc | 0.82% | +0.82% | NEW | |
| 21 | SJM | Jm Smucker Co/the | Stock-Consumer Staples | 0.81% | +0.81% | NEW | |
| 22 | NU | Nu Holdings Ltd. | Stock-Financials | 0.75% | +0.67% | +846.14% | |
| 23 | NOW | Servicenow INC | Stock-Tech | 0.74% | +0.74% | NEW | |
| 24 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.72% | — | +3.38% | |
| 25 | MCK | Mckesson CORP | Stock-Healthcare | 0.72% | — | +155.74% | |
| 26 | OXY | Occidental Petroleum CORP | Stock-Energy | 0.72% | +0.72% | NEW | |
| 27 | AXP | American Express Co | Stock-Financials | 0.71% | — | +215.76% | |
| 28 | EXE | Expand Energy CORP | Stock-Energy | 0.70% | +0.70% | NEW | |
| 29 | ADBE | Adobe INC | Stock-Tech | 0.70% | +0.63% | +1116.92% | |
| 30 | NVDA | Nvidia CORP | Stock-Tech | 0.68% | — | -36.13% | |
| 31 | PH | Parker Hannifin CORP | Stock-Industrials | 0.68% | — | -2.00% | |
| 32 | GILD | Gilead Sciences INC | Stock-Healthcare | 0.66% | +0.66% | NEW | |
| 33 | WTW | Willis Towers Watson Public Limited Company | Stock-Financials | 0.64% | +0.64% | NEW | |
| 34 | MMM | 3m Co | Stock-Industrials | 0.61% | — | — | |
| 35 | TMUS | T-mobile US INC | Stock-Comm Services | 0.61% | — | — | |
| 36 | OMF | Onemain Holdings INC | Stock-Financials | 0.60% | — | — | |
| 37 | TPR | Tapestry INC | Stock-Consumer Disc | 0.60% | — | — | |
| 38 | VLO | Valero Energy CORP | Stock-Energy | 0.57% | — | — | |
| 39 | CRWD | Crowdstrike Holdings INC - A | Stock-Tech | 0.56% | — | — | |
| 40 | TSCO | Tractor Supply Company | Stock-Consumer Disc | 0.56% | — | — | |
| 41 | DKS | Dick's Sporting Goods INC | Stock-Consumer Disc | 0.56% | — | — | |
| 42 | OVV | Ovintiv INC | Stock-Energy | 0.54% | — | +612.82% | |
| 43 | AMT | American Tower CORP | Stock-Real Estate | 0.54% | — | +68.14% | |
| 44 | DASH | Doordash INC - A | Stock-Consumer Disc | 0.54% | — | — | |
| 45 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.54% | — | — | |
| 46 | ABNB | Airbnb Inc-class A | Stock-Consumer Disc | 0.53% | — | — | |
| 47 | MTN | Vail Resorts INC | Stock-Consumer Disc | 0.53% | — | +25.85% | |
| 48 | CYTK | Cytokinetics INC | Stock-Healthcare | 0.53% | — | +460.63% | |
| 49 | SHEL | Shell Plc-adr | Stock-Energy | 0.53% | — | — | |
| 50 | ATI | Ati INC | Stock-Industrials | 0.53% | — | — |
Performance for Q3 2026
+5.1%
Performance Last 4 Quarters
+19.4%
Based on 77% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 496 | $389.2M | 100 | |
| 2025-12-31 | 550 | $432.0M | 100 | |
| 2025-09-30 | 764 | $646.1M | 100 | |
| 2025-06-30 | 750 | $729.6M | 0 | |
| 2025-03-31 | 727 | $626.9M | 100 | |
| 2024-12-31 | 697 | $567.2M | 0 | |
| 2024-09-30 | 687 | $509.6M | 0 | |
| 2024-06-30 | 733 | $514.3M | 0 | |
| 2024-03-31 | 645 | $459.0M | 0 | |
| 2023-12-31 | 757 | $560.7M | 0 | |
| 2023-09-30 | 784 | $530.7M | 0 | |
| 2023-06-30 | 711 | $676.8M | 0 | |
| 2023-03-31 | 592 | $726.8M | 0 | |
| 2022-12-31 | 504 | $706.8M | 0 | |
| 2022-09-30 | 569 | $696.8M | 0 | |
| 2022-06-30 | 509 | $595.1M | 0 | |
| 2022-03-31 | 513 | $580.1M | 0 | |
| 2021-12-31 | 1021 | $1.6B | 0 | |
| 2021-09-30 | 450 | $521.3M | 0 | |
| 2021-06-30 | 431 | $573.5M | 100 | |
| 2021-03-31 | 592 | $755.0M | 100 | |
| 2020-12-31 | 743 | $766.4M | 100 | |
| 2020-09-30 | 833 | $783.5M | 100 | |
| 2020-06-30 | 777 | $779.5M | 100 | |
| 2020-03-31 | 1246 | $753.3M | 100 | |
| 2019-12-31 | 1169 | $603.9M | 0 |
Aigen Investment Management, LP's most significant position changes for 2026-03-31: New buy: Sempra (SRE); Sold out: Procter & Gamble Co/the (PG); Sold out: Netflix INC (NFLX); Sold out: Keycorp (KEY); New buy: Air Products & Chemicals INC (APD).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | HD | Home Depot INC | +1.5% | +1014.33% | Add |
| 2 | V | Visa Inc-class A Shares | +1.1% | +2262.32% | Add |
| 3 | ISRG | Intuitive Surgical INC | +0.8% | +1240.31% | Add |
| 4 | NU | Nu Holdings Ltd. | +0.7% | +846.14% | Add |
| 5 | ADBE | Adobe INC | +0.6% | +1116.92% | Add |
| 6 | KVUE | Kenvue INC | -0.7% | -90.70% | Trim |
| 7 | IBN | Icici Bank Ltd-spon Adr | -0.7% | -59.84% | Trim |
| 8 | AMZN | Amazon.com INC | -1.2% | -94.73% | Trim |
| 9 | MSFT | Microsoft CORP | -1.6% | -80.85% | Trim |
| 10 | BLK | Blackrock INC | -1.6% | -93.04% | Trim |
| 11 | SRE | Sempra | — | NEW | New buy |
| 12 | PG | Procter & Gamble Co/the | — | EXIT | Sold out |
| 13 | NFLX | Netflix INC | — | EXIT | Sold out |
| 14 | KEY | Keycorp | — | EXIT | Sold out |
| 15 | APD | Air Products & Chemicals INC | — | NEW | New buy |
| 16 | MSI | Motorola Solutions INC | — | EXIT | Sold out |
| 17 | COF | Capital One Financial CORP | — | NEW | New buy |
| 18 | VEEV | Veeva Systems Inc-class A | — | EXIT | Sold out |
| 19 | FDX | Fedex CORP | — | NEW | New buy |
| 20 | EOG | Eog Resources INC | — | EXIT | Sold out |
| 21 | MA | Mastercard INC - A | — | NEW | New buy |
| 22 | ADI | Analog Devices INC | — | NEW | New buy |
| 23 | HAL | Halliburton Co | — | NEW | New buy |
| 24 | ELV | Elevance Health INC | — | NEW | New buy |
| 25 | KMI | Kinder Morgan INC | — | EXIT | Sold out |
| 26 | ADP | Automatic Data Processing | — | EXIT | Sold out |
| 27 | BKNG | Booking Holdings INC | — | NEW | New buy |
| 28 | LIN | Linde plc | — | EXIT | Sold out |
| 29 | TMO | Thermo Fisher Scientific INC | — | NEW | New buy |
| 30 | MS | Morgan Stanley | — | EXIT | Sold out |
| 31 | STT | State Street CORP | — | NEW | New buy |
| 32 | MCD | Mcdonald's CORP | — | EXIT | Sold out |
| 33 | LMT | Lockheed Martin CORP | — | NEW | New buy |
| 34 | BKR | Baker Hughes Co | — | NEW | New buy |
| 35 | MRSH | Marsh & Mclennan Cos | — | EXIT | Sold out |
| 36 | MAR | Marriott International -cl A | — | NEW | New buy |
| 37 | SJM | Jm Smucker Co/the | — | NEW | New buy |
| 38 | GNTX | Gentex CORP | — | EXIT | Sold out |
| 39 | NOW | Servicenow INC | — | NEW | New buy |
| 40 | UNH | Unitedhealth Group INC | — | EXIT | Sold out |
| 41 | OXY | Occidental Petroleum CORP | — | NEW | New buy |
| 42 | FIS | Fidelity National Info Serv | — | EXIT | Sold out |
| 43 | URI | United Rentals INC | — | EXIT | Sold out |
| 44 | EXE | Expand Energy CORP | — | NEW | New buy |
| 45 | ETN | Eaton Corporation plc | — | EXIT | Sold out |
| 46 | CARR | Carrier Global CORP | — | EXIT | Sold out |
| 47 | GILD | Gilead Sciences INC | — | NEW | New buy |
| 48 | LVS | Las Vegas Sands CORP | — | EXIT | Sold out |
| 49 | CCI | Crown Castle INC | — | EXIT | Sold out |
| 50 | WTW | Willis Towers Watson Public Limited Company | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-13 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-12 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-12 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-06 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-05 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-09 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-14 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-09 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-13 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-15 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-10 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-09 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-02 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-05 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-11 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-12 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-10 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-11 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-12 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-06 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-10 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-08 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-04 | 13F-HR | View on EDGAR |
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