As of November 7, 2026, 5 holders' latest Schedule 13D or 13G filings report owning 5% or more of Butterfly Network Inc. The largest reported stake is Rothberg Jonathan M.'s, at 100%. 17 filings are on record since July 17, 2025 (Schedule 13D/A, August 17, 2026).
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Key facts
- · Reporting person: Fmr LLC · Sole voting: 36,720,230 · Shared voting: 0 · Sole dispositive: 36,728,737 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-11-05
- · Reporting person: Rothberg Jonathan M. · Sole voting: 102,079 · Shared voting: 726,696 · Sole dispositive: 102,079 · Shared dispositive: 726,696 · SCHEDULE 13D/A, 2026-08-17
- · Reporting person: Glenview Capital Management, LLC · Sole voting: 0 · Shared voting: 11,743,530 · Sole dispositive: 0 · Shared dispositive: 11,743,530 · SCHEDULE 13D/A, 2026-08-17
- · Reporting person: Hood River Capital Management LLC · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 13,190,130 · Shared dispositive: 0 · SCHEDULE 13G, 2026-08-14
- · Holder: Fmr LLC · Percent: 11.8% · SCHEDULE 13G
Butterfly Network Inc has 17 Schedule 13D or 13G filings on record since 2025-07-17. 5 holders' latest filing reports 5% or more of class a common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| 100% | 828,775 | SCHEDULE 13D/A, 2026-08-17 | 2026-08-14 | |
| Fmr LLC | 15% | 36,728,737 | SCHEDULE 13G/A, 2026-11-05 | 2026-09-30 |
| BlackRock, Inc. | 7.8% | 18,274,786 | SCHEDULE 13G/A, 2026-07-27 | 2026-06-30 |
| Glenview Capital Management, LLC | 6.17% | 11,743,530 | SCHEDULE 13D/A, 2026-08-17 | 2026-08-13 |
| Hood River Capital Management LLC | 5.61% | 13,190,130 | SCHEDULE 13G, 2026-08-14 | 2026-06-30 |
| Fosun Industrial Co., Limited | 4.7% | 10,716,630 | SCHEDULE 13G/A, 2026-02-05 | 2025-12-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on Butterfly Network Inc and the records around it.
Butterfly Network Inc elsewhere on the record
- Leadership changes Aug 2026
- Who owns it
Companies that share a holder
- Rothberg Jonathan M. also filed stake reports on 1 other company: Quantum-Si Inc (Aug 2026)
- GLENVIEW CAPITAL MANAGEMENT, LLC also filed stake reports on 6 other companies: Surgery Partners, Inc. (Oct 2026), DXC Technology Co (Aug 2026), MYRIAD GENETICS INC (Aug 2026)
- Hood River Capital Management LLC also filed stake reports on 19 other companies: Camping World Holdings, Inc. (Aug 2026), Kura Sushi USA Inc. (Aug 2026), LightPath Technologies Inc. (Aug 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Rothberg Jonathan M. | 102,079 | 726,696 | 102,079 | 726,696 | SCHEDULE 13D/A, 2026-08-17 |
| Rothberg Jonathan M. | 21,426,937 | 0 | 21,426,937 | 0 | SCHEDULE 13D/A, 2026-08-17 |
| 4C Holdings I, LLC | 0 | 4,716,596 | 0 | 4,716,596 | SCHEDULE 13D/A, 2026-08-17 |
| 4C Holdings II, LLC | 0 | 2,621,701 | 0 | 2,621,701 | SCHEDULE 13D/A, 2026-08-17 |
| 4C Holdings III, LLC | 0 | 2,621,701 | 0 | 2,621,701 | SCHEDULE 13D/A, 2026-08-17 |
| 4C Holdings IV, LLC | 0 | 2,621,701 | 0 | 2,621,701 | SCHEDULE 13D/A, 2026-08-17 |
| 4C Holdings V, LLC | 0 | 8,845,238 | 0 | 8,845,238 | SCHEDULE 13D/A, 2026-08-17 |
| Fmr LLC | 36,720,230 | 0 | 36,728,737 | 0 | SCHEDULE 13G/A, 2026-11-05 |
| Abigail P. Johnson | 0 | 0 | 36,728,737 | 0 | SCHEDULE 13G/A, 2026-11-05 |
| BlackRock, Inc. | 17,935,248 | 0 | 18,274,786 | 0 | SCHEDULE 13G/A, 2026-07-27 |
| Glenview Capital Management, LLC | 0 | 11,743,530 | 0 | 11,743,530 | SCHEDULE 13D/A, 2026-08-17 |
| Robbins Larry | 412,597 | 14,707,717 | 412,597 | 14,707,717 | SCHEDULE 13D/A, 2026-08-17 |
| Hood River Capital Management LLC | 0 | 0 | 13,190,130 | 0 | SCHEDULE 13G, 2026-08-14 |
The latest filing identifies Butterfly Network Inc by CUSIP 124155102 and gives its principal executive office as 1600 DISTRICT AVENUE, BURLINGTON, MA 01803 (SCHEDULE 13G/A, 2026-11-05).
Purpose of Transaction (Item 4)
Glenview Capital Management, LLC
Item 4 of the Schedule 13D is hereby amended and supplemented as follows: On June 22, 2026, Mr. Robbins was granted 25,447 shares of unvested restricted stock units, each representing the right to receive one share of Common Stock upon vesting, which vest in full on the date of the Issuer's 2027 Annual Stockholders Meeting, subject to Mr. Robbins' continued service on the Issuer's board of directors on such date.Item 4 of the SCHEDULE 13D/A filed 2026-08-17
Rothberg Jonathan M.
Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following: In connection with estate planning, Dr. Rothberg, acting on his own and on behalf of 4C Holdings I, LLC, 4C Holdings II, LLC, 4C Holdings III, LLC, 4C Holdings IV, LLC, and Dr. Bonnie Rothberg, Dr. Rothberg's spouse, entered into a trading plan pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended (the "Plan"), a copy of which is attached hereto as Exhibit 6. Pursuant to the Plan, sales of up to 363,348 shares of Class A common stock and 8,049,929 shares of Class B common stock may be effected during the plan sales period beginning following the cooling-off period contained in Rule 10b5-1(c) and ending on November 12, 2027 in accordance with the terms and conditions of the Plan. The sale of shares of Class A common stock and Class B common stock under the Plan is subject to minimum price and volume parameters included in the Plan, and there is no assurance that any shares of Class A common stock or Class B common stock will be sold under the Plan.Item 4 of the SCHEDULE 13D/A filed 2026-08-17
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-17 | BlackRock, Inc. | 6.3% | SCHEDULE 13G |
| 2025-11-24 | Glenview Capital Management, LLC | 9.71% | SCHEDULE 13D/A |
| 2025-12-01 | Rothberg Jonathan M. | 100% | SCHEDULE 13D/A |
| 2025-12-17 | Rothberg Jonathan M. | 100% | SCHEDULE 13D/A |
| 2026-01-30 | The Vanguard Group | 5% | SCHEDULE 13G |
| 2026-02-05 | Fosun Industrial Co., Limited | 4.7% | SCHEDULE 13G/A |
| 2026-02-17 | Glenview Capital Management, LLC | 8.52% | SCHEDULE 13D/A |
| 2026-03-17 | Rothberg Jonathan M. | 100% | SCHEDULE 13D/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-07-17 | Rothberg Jonathan M. | 100% | SCHEDULE 13D/A |
| 2026-07-21 | Rothberg Jonathan M. | 100% | SCHEDULE 13D/A |
| 2026-07-27 | BlackRock, Inc. | 7.8% | SCHEDULE 13G/A |
| 2026-08-07 | Fmr LLC | 11.8% | SCHEDULE 13G |
| 2026-08-14 | Hood River Capital Management LLC | 5.61% | SCHEDULE 13G |
| 2026-08-17 | Glenview Capital Management, LLC | 6.17% | SCHEDULE 13D/A |
| 2026-08-17 | Rothberg Jonathan M. | 100% | SCHEDULE 13D/A |
| 2026-11-05 | Fmr LLC | 15% | SCHEDULE 13G/A |
Questions about who owns Butterfly Network Inc
Who owns Butterfly Network Inc?
On this page, 5 holders' latest ownership filings report 5% or more of Butterfly Network Inc: Rothberg Jonathan M. (100%, Schedule 13D/A, filed 2026-08-17), Fmr LLC (15%, Schedule 13G/A, filed 2026-11-05), BlackRock, Inc. (7.8%, Schedule 13G/A, filed 2026-07-27), Glenview Capital Management, LLC (6.17%, Schedule 13D/A, filed 2026-08-17) and Hood River Capital Management LLC (5.61%, Schedule 13G, filed 2026-08-14).
Who are the largest shareholders of Butterfly Network Inc?
By the share each holder's latest filing reports, the largest holders of Butterfly Network Inc on this page are Rothberg Jonathan M. (100%), Fmr LLC (15%) and BlackRock, Inc. (7.8%).
When did Rothberg Jonathan M. buy into Butterfly Network Inc?
The filings give report dates, not purchase dates. The earliest filing from Rothberg Jonathan M. on this page is the Schedule 13D/A, filed 2025-12-01, reporting 100%; its latest, Schedule 13D/A filed 2026-08-17, reports 100%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 17 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
Also on the record for Butterfly Network Inc
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| October 5, 2026 | Leadership change: Michael Noonen appointed | — | Leadership changes | Source |
| August 11, 2026 | Leadership change filing (Form 8-K, Item 5.02) | — | Leadership changes | Source |
| May 8, 2026 | Leadership change: Erica Schwartz departs, Director, and 1 more | — | Leadership changes | Source |
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.