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 ($82.8k this quarter). Holder counts are more reliable. Shares outstanding: 26.9m as of 2025-05-02, 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 ≈ $7.13. Options: 5 managers hold calls ($144.5k notional), 2 hold puts ($9.3k).
Trends to Q1 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2023 | 74 | 77 |
| Q3 2023 | 57 | 72 |
| Q4 2023 | 71 | 53 |
| Q1 2024 | 62 | 70 |
| Q2 2024 | 55 | 73 |
| Q3 2024 | 61 | 58 |
| Q4 2024 | 69 | 51 |
| Q1 2025 | 69 | 55 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2024 | $2.3m | $408.5k | 0.18 |
| Q3 2024 | $2.7m | $1.4m | 0.50 |
| Q4 2024 | $2.1m | $979.1k | 0.46 |
| Q1 2025 | $144.5k | $9.3k | 0.06 |
Biggest buyers
| Kent Lake PR LLC | Added | +417.0k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +270.5k |
| DAFNA Capital Management LLC | Added | +249.3k |
| PRUDENTIAL FINANCIAL INC | Added | +239.9k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +237.9k |
| CITADEL ADVISORS LLC | Added | +188.3k |
| DIMENSIONAL FUND ADVISORS LP | Added | +149.3k |
| ROYCE & ASSOCIATES LP | Added | +133.3k |
| AQR CAPITAL MANAGEMENT LLC | Added | +130.4k |
| THOMPSON SIEGEL & WALMSLEY LLC | New | +125.7k |
Biggest sellers
| BROWN CAPITAL MANAGEMENT LLC | Sold out | -1.4m |
| Camber Capital Management LP | Reduced | -1.0m |
| FRED ALGER MANAGEMENT, LLC | Sold out | -601.0k |
| NEW YORK STATE COMMON RETIREMENT FUND | Reduced | -402.9k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | Reduced | -233.2k |
| Trexquant Investment LP | Sold out | -125.9k |
| JPMORGAN CHASE & CO | Reduced | -93.5k |
| BANK OF AMERICA CORP /DE/ | Reduced | -83.7k |
| Qube Research & Technologies Ltd | Reduced | -76.6k |
| D. E. Shaw & Co., Inc. | Sold out | -73.3k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $72.0k10.1k shares |
| CITADEL ADVISORS LLC | Reduced | $65.6k9.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $4.0k600 shares |
| GROUP ONE TRADING LLC | Reduced | $2.9k400 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $9.3k1.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
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 in Q1 2025
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 |
|---|---|---|---|---|---|
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $85.6k | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 2 | $125.2k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-03-03 | Smith Kevin Raymond Merrill CEO and President, director | Bought plan | $100.2k11.7k shares |
| 2025-03-03 | Bourque Michael J. EVP, CFO & Treasurer | Bought plan | $25.0k3.0k 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, Q1 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.8m $12.7m | Added +26.4k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.5m $11.0m | Added +82.6k |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 1.0m $7.3m | Added +270.5k |
| Kent Lake PR LLC 3.30% of their portfolio | 1.0m $7.2m | Added +417.0k |
| Camber Capital Management LP 0.43% of their portfolio | 975.0k $7.0m | Reduced -1.0m |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 874.5k $6.2m | Added +25.5k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 757.1k $5.4m | Added +149.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 730.8k $5.2m | Added +237.9k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 599.9k $4.3m | Added +239.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 570.4k $4.1m | Added +17.8k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 564.0k $4.0m | Added +130.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 533.5k $3.8m | Reduced -93.5k |
| MORGAN STANLEY 0.00% of their portfolio | 531.3k $3.8m | Added +59.0k |
| STATE STREET CORP 0.00% of their portfolio | 518.2k $3.7m | Reduced -5.7k |
| DAFNA Capital Management LLC 0.93% of their portfolio | 458.1k $3.3m | Added +249.3k |
| ROYCE & ASSOCIATES LP 0.03% of their portfolio | 444.5k $3.2m | Added +133.3k |
| FEDERATED HERMES, INC. 0.01% of their portfolio | 404.9k $2.9m | Added +622 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.07% of their portfolio | 398.0k $2.8m | Reduced -233.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 296.2k $2.1m | Added +188.3k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.01% of their portfolio | 294.7k $2.1m | Reduced -8.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 291.8k $2.1m | Added +28.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 284.2k $2.0m | Added +41.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 283.5k $2.0m | Added +34.6k |
| Stokes Family Office, LLC 0.17% of their portfolio | 207.7k $1.5m | Added +44.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 196.7k $1.4m | Reduced -1.6k |
| Monaco Asset Management SAM 0.60% of their portfolio | 167.6k $1.2m | Added +91.1k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 161.2k $1.1m | Added +78.3k |
| Divisadero Street Capital Management, LP 0.13% of their portfolio | 155.8k $1.1m | Reduced -44.2k |
| Nuveen, LLC 0.00% of their portfolio | 153.8k $1.1m | First filing |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 127.7k $910.6k | Reduced -15.9k |
| THOMPSON SIEGEL & WALMSLEY LLC 0.02% of their portfolio | 125.7k $896.0k | New |
| Cubist Systematic Strategies, LLC 0.01% of their portfolio | 125.0k $891.2k | Added +1.8k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 124.5k $887.5k | Reduced -2.0k |
| UBS Group AG 0.00% of their portfolio | 102.6k $731.6k | Reduced -55.3k |
| TOCQUEVILLE ASSET MANAGEMENT L.P. 0.01% of their portfolio | 87.8k $626.4k | Unchanged |
| GSA CAPITAL PARTNERS LLP 0.05% of their portfolio | 76.6k $546.0k | Added +20.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 73.7k $525.7k | Unchanged |
| Invesco Ltd. 0.00% of their portfolio | 73.1k $521.2k | Reduced -5.0k |
| Campbell & CO Investment Adviser LLC 0.04% of their portfolio | 68.6k $489.1k | Added +9.6k |
| STRS OHIO 0.00% of their portfolio | 65.6k $467.7k | Added +4.3k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 65.0k $463.3k | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 64.6k $460.5k | Reduced -76.6k |
| BARCLAYS PLC 0.00% of their portfolio | 63.0k $448.9k | Reduced -2.9k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 58.4k $416.2k | Added +3.5k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio | 56.7k $404.3k | Added +31.3k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 52.5k $374.5k | Reduced -21.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 49.0k $349.5k | Unchanged |
| AlphaQuest LLC 0.04% of their portfolio | 48.3k $344.3k | Added +43.6k |
| Graham Capital Management, L.P. 0.01% of their portfolio | 45.7k $326.2k | Added +30.7k |
| Inspire Advisors, LLC 0.04% of their portfolio | 44.0k $313.6k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 43.7k $311.3k | Reduced -83.7k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 42.2k $300.8k | Added +16.6k |
| MISSION WEALTH MANAGEMENT, LP 0.01% of their portfolio | 41.1k $293.0k | Unchanged |
| Jump Financial, LLC 0.00% of their portfolio | 40.8k $290.7k | Added +16.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 40.1k $285.6k | First filing |
| Squarepoint Ops LLC 0.00% of their portfolio | 39.1k $278.7k | Reduced -7.1k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 38.3k $273.3k | Added +21.7k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 36.5k $260.2k | Reduced -2.1k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 34.2k $243.8k | Reduced -41.3k |
| XTX Topco Ltd 0.01% of their portfolio | 33.2k $236.9k | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 31.4k $210.2k | Added +16.6k |
| Integrated Quantitative Investments LLC 0.11% of their portfolio | 30.0k $213.8k | Added +20.0k |
| SHERBROOKE PARK ADVISERS LLC 0.10% of their portfolio | 29.8k $212.6k | Added +2.1k |
| B. Riley Wealth Advisors, Inc. 0.01% of their portfolio | 28.8k $205.3k | Added +5.1k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 28.0k $199.9k | Reduced -4.2k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 27.8k $199.0k | Added +1.1k |
| Engineers Gate Manager LP 0.00% of their portfolio | 25.5k $181.7k | Reduced -8.3k |
| Verition Fund Management LLC 0.00% of their portfolio | 25.1k $178.9k | New |
| Callan Capital, LLC 0.01% of their portfolio | 20.1k $143.4k | Unchanged |
| Tidal Investments LLC 0.00% of their portfolio | 18.9k $135.0k | Added +155 |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 18.7k $133.4k | Added +8.4k |
| IEQ CAPITAL, LLC 0.00% of their portfolio | 18.7k $133.2k | Added +8.4k |
| CITIGROUP INC 0.00% of their portfolio | 17.4k $123.9k | Reduced -1.2k |
| State of Wyoming 0.02% of their portfolio | 16.0k $114.0k | Reduced -4.2k |
| AE Wealth Management LLC 0.00% of their portfolio | 15.5k $110.8k | Reduced -1.7k |
| Stratos Wealth Advisors, LLC 0.01% of their portfolio | 15.2k $108.1k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 14.9k $105.9k | Added +5.7k |
| CWM, LLC 0.00% of their portfolio | 14.6k $104.0k | Added +6.1k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 14.5k $103.6k | Added +614 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 14.4k $102.9k | Added +378 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 14.3k $102.1k | Added +624 |
| Bayesian Capital Management, LP 0.02% of their portfolio | 14.1k $100.5k | New |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 13.9k $98.8k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 13.2k $94.3k | Reduced -280 |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 13.0k $92.7k | Reduced -5.7k |
| ALGERT GLOBAL LLC 0.00% of their portfolio | 12.5k $88.8k | New |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 12.0k $85.3k | New |
| Corebridge Financial, Inc. 0.00% of their portfolio | 11.8k $84.1k | Added +3 |
| Centiva Capital, LP 0.00% of their portfolio | 11.7k $83.3k | New |
| WINTON GROUP Ltd 0.00% of their portfolio | 10.7k $76.0k | New |
| FMR LLC 0.00% of their portfolio | 10.3k $73.1k | Reduced -157 |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 7.4k $52.7k | Reduced -402.9k |
| MEEDER ASSET MANAGEMENT INC 0.00% of their portfolio | 6.1k $43.5k | Unchanged |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 5.0k $35.4k | Unchanged |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 4.8k $34.0k | Unchanged |
| Leonteq Securities AG 0.00% of their portfolio | 4.1k $29.2k | Added +757 |
| HighMark Wealth Management LLC 0.01% of their portfolio | 2.2k $15.7k | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 2.1k $15.0k | Reduced -2.0k |
| Legal & General Group Plc 0.00% of their portfolio | 2.1k $15.2k | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 1.8k $13.1k | New |