INOGEN INC INGN
COM · Common Stock · CUSIP 45780L104 · ISIN US45780L1044
- SectorHealth care
- IndustryOrthopedic, Prosthetic & Surgical Appliances & Supplies
- HeadquartersBeverly, MA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($156.7k this quarter). Holder counts are more reliable. Shares outstanding: 26.5m as of 2026-08-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $6.46. Options: 1 managers hold calls ($645 notional), 0 hold puts (—).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 145 |
| Q4 2022 | 135 |
| Q1 2023 | 151 |
| Q2 2023 | 140 |
| Q3 2023 | 129 |
| Q4 2023 | 129 |
| Q1 2024 | 130 |
| Q2 2024 | 131 |
| Q3 2024 | 134 |
| Q4 2024 | 137 |
| Q1 2025 | 129 |
| Q2 2025 | 128 |
| Q3 2025 | 131 |
| Q4 2025 | 133 |
| Q1 2026 | 126 |
| Q2 2026 | 129 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 61 | 58 |
| Q4 2024 | 69 | 51 |
| Q1 2025 | 69 | 55 |
| Q2 2025 | 62 | 59 |
| Q3 2025 | 68 | 62 |
| Q4 2025 | 51 | 70 |
| Q1 2026 | 61 | 69 |
| Q2 2026 | 82 | 43 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $193.6k | $817 | 0.00 |
| Q4 2025 | $71.2k | $672 | 0.01 |
| Q1 2026 | $0 | $0 | — |
| Q2 2026 | $645 | $0 | 0.00 |
Biggest buyers
| AQR CAPITAL MANAGEMENT LLC | Added | +510.2k |
| READYSTATE ASSET MANAGEMENT LP | New | +266.3k |
| MACKENZIE FINANCIAL CORP | New | +210.9k |
| Steward Partners Investment Advisory, LLC | New | +201.5k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Added | +157.1k |
| AMERIPRISE FINANCIAL INC | Added | +123.5k |
| Assenagon Asset Management S.A. | Added | +122.9k |
| UBS Group AG | Added | +117.1k |
| MORGAN STANLEY | Added | +105.1k |
| BlackRock, Inc. | Added | +101.9k |
Biggest sellers
| Point72 Asset Management, L.P. | Reduced | -471.0k |
| Qube Research & Technologies Ltd | Sold out | -242.2k |
| PERKINS CAPITAL MANAGEMENT INC | Sold out | -199.6k |
| TUDOR INVESTMENT CORP ET AL | Sold out | -197.7k |
| Nuveen, LLC | Reduced | -178.1k |
| CITADEL ADVISORS LLC | Sold out | -176.7k |
| GSA CAPITAL PARTNERS LLP | Reduced | -153.3k |
| GOLDMAN SACHS GROUP INC | Reduced | -144.5k |
| ARMISTICE CAPITAL, LLC | Reduced | -104.0k |
| THOMPSON SIEGEL & WALMSLEY LLC | Sold out | -94.9k |
Biggest calls
| SIMPLEX TRADING, LLC | New | $645100 shares |
Biggest puts
| None |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Yuwell (Hong Kong) Holdings Ltd 13G · passive investor new · filed 2025-02-24 | 9.9% |
| BlackRock, Inc. 13G · institution filed 2025-07-17 | 6.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 2 | $125.2k | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 1 | $70.3k | $70.3k |
| Q3 2026 | 0 | — | 1 | $72.2k | $72.2k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-07-01 | Yi Boyer Jennifer M EVP Entrprs Enblmnt, Ch HR Off | Sold plan | $72.2k10.9k shares |
| 2026-05-29 | Yi Boyer Jennifer M EVP Entrprs Enblmnt, Ch HR Off | Sold plan | $70.3k10.8k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.7m $11.3m | Added +101.9k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 1.1m $7.1m | Added +13.4k |
| ARMISTICE CAPITAL, LLC 0.20% of their portfolio | 1.1m $7.1m | Reduced -104.0k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.0m $6.7m | Added +1.6k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 983.0k $6.3m | Added +123.5k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 937.3k $6.0m | Added +510.2k |
| DAFNA Capital Management LLC 1.04% of their portfolio | 845.2k $5.5m | Unchanged |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 743.3k $4.8m | Added +157.1k |
| MORGAN STANLEY 0.00% of their portfolio | 646.3k $4.2m | Added +105.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 641.5k $4.1m | Added +28.0k |
| STATE STREET CORP 0.00% of their portfolio | 591.9k $3.8m | Added +18.7k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 534.9k $3.5m | Added +20.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 488.6k $3.2m | Reduced -21.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 480.3k $3.3m | Added +52.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 476.7k $3.1m | Reduced -2.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 435.6k $2.8m | Reduced -144.5k |
| CSM Advisors, LLC 0.06% of their portfolio | 413.4k $2.7m | Reduced -455 |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 393.8k $2.5m | Added +63.4k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 388.8k $2.5m | Added +91.8k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 329.0k $2.1m | Reduced -40.1k |
| UBS Group AG 0.00% of their portfolio | 301.6k $1.9m | Added +117.1k |
| MOORE CAPITAL MANAGEMENT, LP 0.04% of their portfolio | 289.1k $1.9m | Added +9.2k |
| READYSTATE ASSET MANAGEMENT LP 0.07% of their portfolio | 266.3k $1.7m | New |
| Peapod Lane Capital LLC 1.14% of their portfolio | 262.8k $1.7m | Added +4.1k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 252.8k $1.6m | Added +27.2k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 210.9k $1.4m | New |
| Steward Partners Investment Advisory, LLC 0.01% of their portfolio | 201.5k $1.3m | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 197.2k $1.3m | Added +14.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 195.1k $1.3m | Added +30.0k |
| Nuveen, LLC 0.00% of their portfolio | 185.6k $1.2m | Reduced -178.1k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 173.9k $1.1m | Added +122.9k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 171.3k $1.1m | Reduced -471.0k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 163.8k $1.1m | Added +9.9k |
| Monaco Asset Management SAM 0.39% of their portfolio | 160.7k $1.0m | Reduced -15.0k |
| Quantinno Capital Management LP 0.00% of their portfolio | 132.7k $856.1k | Added +41.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 118.4k $763.6k | Added +5.5k |
| CREDIT AGRICOLE S A 0.00% of their portfolio | 112.0k $722.4k | Unchanged |
| TOCQUEVILLE ASSET MANAGEMENT L.P. 0.01% of their portfolio | 93.3k $602.1k | Unchanged |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 74.2k $478.4k | Added +6.2k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 73.6k $474.6k | Added +59.5k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 64.4k $415.7k | Reduced -61.6k |
| Campbell & CO Investment Adviser LLC 0.02% of their portfolio | 63.8k $411.6k | Added +32.9k |
| Invesco Ltd. 0.00% of their portfolio | 61.4k $396.0k | Added +5.3k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 60.8k $392.4k | Reduced -430 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 57.9k $357.9k | Added +6.8k |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 52.4k $338.1k | Added +6.2k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 43.8k $283.0k | Reduced -13.1k |
| XTX Topco Ltd 0.00% of their portfolio | 43.4k $279.8k | Added +10.1k |
| BARCLAYS PLC 0.00% of their portfolio | 42.6k $274.8k | Reduced -480 |
| Connor, Clark & Lunn Investment Management Ltd. 0.00% of their portfolio | 41.6k $268.2k | Reduced -17.8k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 39.2k $252.6k | Added +11.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 38.1k $247.0k | Added +1.4k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 37.2k $239.8k | Reduced -9.5k |
| Marquette Asset Management, LLC 0.03% of their portfolio | 35.3k $228.0k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 32.9k $212.1k | Reduced -5.0k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 32.1k $206.9k | Added +11.4k |
| Cerity Partners LLC 0.00% of their portfolio | 31.6k $203.5k | Added +17.7k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 30.9k $199.5k | Added +14.8k |
| Mariner, LLC 0.00% of their portfolio | 30.1k $194.4k | New |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 29.6k $190.9k | Reduced -1.3k |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 28.4k $183.4k | Added +14.3k |
| Tidal Investments LLC 0.00% of their portfolio | 26.0k $167.5k | Reduced -93 |
| Jump Financial, LLC 0.00% of their portfolio | 25.8k $166.2k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 24.2k $155.8k | Added +7.0k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 23.6k $152.0k | Reduced -63.4k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 23.4k $152.8k | New |
| AlphaCore Capital LLC 0.00% of their portfolio | 20.9k $134.6k | Added +196 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 20.7k $133.7k | Added +11.7k |
| CAPTRUST FINANCIAL ADVISORS 0.00% of their portfolio | 19.1k $123.1k | Added +6.4k |
| Divisadero Street Capital Management, LP 0.00% of their portfolio | 18.4k $118.8k | Reduced -69.7k |
| GSA CAPITAL PARTNERS LLP 0.01% of their portfolio | 18.1k $117.0k | Reduced -153.3k |
| FMR LLC 0.00% of their portfolio | 17.4k $112.1k | Added +8.2k |
| nVerses Capital, LLC 0.17% of their portfolio | 17.3k $111.4k | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 16.2k $104.3k | New |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 15.0k $96.8k | Added +3.5k |
| IMC-Chicago, LLC 0.00% of their portfolio | 14.8k $95.2k | New |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 14.7k $94.5k | Reduced -1.6k |
| MetLife Investment Management, LLC 0.00% of their portfolio | 14.3k $92.5k | Added +8.9k |
| Focus Partners Wealth 0.00% of their portfolio | 13.5k $87.3k | New |
| PharVision Advisers, LLC 1.64% of their portfolio | 13.5k $86.9k | New |
| Arax Advisory Partners 0.00% of their portfolio | 11.7k $75.5k | Added +11.4k |
| CITIGROUP INC 0.00% of their portfolio | 11.4k $73.7k | Added +10.3k |
| Jain Global LLC 0.00% of their portfolio | 11.4k $73.5k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 11.4k $73.5k | Added +88 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 10.4k $67.1k | Reduced -17.2k |
| Aigen Investment Management, LP 0.02% of their portfolio | 10.3k $66.7k | New |
| Quadrature Capital Ltd 0.00% of their portfolio | 10.2k $65.5k | New |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 8.1k $52.3k | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 7.4k $47.7k | Unchanged |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 7.0k $45.4k | Unchanged |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 6.1k $39.6k | Added +6.1k |
| Versant Capital Management, Inc 0.00% of their portfolio | 4.0k $25.7k | Added +1.1k |
| Pinnacle Wealth Planning Services, Inc. 0.00% of their portfolio | 2.2k $14.3k | Added +190 |
| Legal & General Group Plc 0.00% of their portfolio | 2.1k $13.8k | Unchanged |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 2.0k $13.1k | Reduced -1.6k |
| Allworth Financial LP 0.00% of their portfolio | 1.8k $11.8k | Added +1.2k |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 1.7k $10.9k | Added +684 |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.6k $10.3k | Unchanged |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 1.6k $10.1k | Added +304 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1.5k $9.4k | Added +1.5k |