As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Appian Corp. The largest reported stake is Vanguard Portfolio Management's, at 8.7%. 15 filings are on record since July 9, 2025 (Schedule 13G/A, October 30, 2026).
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Key facts
- · Reporting person: Vanguard Portfolio Management · Sole voting: 38,842 · Shared voting: 0 · Sole dispositive: 3,528,884 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-30
- · Reporting person: RPD Fund Management LLC · Sole voting: 0 · Shared voting: 1,856,981 · Sole dispositive: 0 · Shared dispositive: 1,856,981 · SCHEDULE 13G/A, 2026-08-14
- · Holder: Lead Edge Capital Management, LLC · Percent: 6.8% · Shares: 2,878,544 · SCHEDULE 13G
- · Reporting person: The Vanguard Group · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-03-26
- · Holder: Vanguard Portfolio Management · Percent: 10.06% · SCHEDULE 13G
Appian Corp has 15 Schedule 13D or 13G filings on record since 2025-07-09. 3 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Vanguard Portfolio Management | 8.7% | 3,528,884 | SCHEDULE 13G/A, 2026-10-30 | 2026-09-30 |
| Fivespan Partners, LP | 7.9% | 3,380,907 | SCHEDULE 13D/A, 2026-02-05 | 2026-02-03 |
| Lead Edge Capital Management, LLC | 6.8% | 2,878,544 | SCHEDULE 13G, 2026-06-30 | 2026-06-30 |
| Abdiel Qualified Master Fund, LP | 4.9% | 2,009,451 | SCHEDULE 13D/A, 2025-08-27 | 2025-08-27 |
| RPD Fund Management LLC | 4.4% | 1,856,981 | SCHEDULE 13G/A, 2026-08-14 | 2026-06-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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More on Appian Corp and the records around it.
Appian Corp elsewhere on the record
Companies that share a holder
- Fivespan Partners, LP also filed stake reports on 1 other company: BLACKLINE, INC. (Mar 2026)
- RPD Fund Management LLC also filed stake reports on 2 other companies: ZoomInfo Technologies Inc. (Aug 2026), DOMO, INC. (Jun 2026)
- Vanguard Portfolio Management also filed stake reports on 941 other companies: Newmark Group Inc (Nov 2026), A10 Networks Inc (Oct 2026), ADT Inc (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Vanguard Portfolio Management | 38,842 | 0 | 3,528,884 | 0 | SCHEDULE 13G/A, 2026-10-30 |
| Lead Edge Capital Management, LLC | 0 | 2,878,544 | 0 | 2,878,544 | SCHEDULE 13G, 2026-06-30 |
| Mitchell Green | 0 | 2,878,544 | 0 | 2,878,544 | SCHEDULE 13G, 2026-06-30 |
| Brian Neider | 0 | 2,878,544 | 0 | 2,878,544 | SCHEDULE 13G, 2026-06-30 |
| Nimay Mehta | 0 | 2,878,544 | 0 | 2,878,544 | SCHEDULE 13G, 2026-06-30 |
| RPD Fund Management LLC | 0 | 1,856,981 | 0 | 1,856,981 | SCHEDULE 13G/A, 2026-08-14 |
| RPD Opportunity Fund LP | 0 | 1,856,981 | 0 | 1,856,981 | SCHEDULE 13G/A, 2026-08-14 |
| RPD Opportunity LLC | 0 | 1,856,981 | 0 | 1,856,981 | SCHEDULE 13G/A, 2026-08-14 |
| Ahmet H. Okumus | 0 | 1,856,981 | 0 | 1,856,981 | SCHEDULE 13G/A, 2026-08-14 |
| The Vanguard Group | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-03-26 |
The latest filing identifies Appian Corp by CUSIP 03782L101 and gives its principal executive office as 11955 Democracy Drive, Suite 1700, Reston, VA 20190 (SCHEDULE 13G/A, 2026-10-30).
Purpose of Transaction (Item 4)
Abdiel Qualified Master Fund, LP
Not ApplicableItem 4 of the SCHEDULE 13D/A filed 2025-08-27
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-09 | Abdiel Qualified Master Fund, LP | 16.3% | SCHEDULE 13D/A |
| 2025-07-22 | Abdiel Qualified Master Fund, LP | 14.9% | SCHEDULE 13D/A |
| 2025-07-25 | Abdiel Qualified Master Fund, LP | 13.2% | SCHEDULE 13D/A |
| 2025-08-11 | Abdiel Qualified Master Fund, LP | 9.9% | SCHEDULE 13D/A |
| 2025-08-14 | Abdiel Qualified Master Fund, LP | 6.6% | SCHEDULE 13D/A |
| 2025-08-27 | Abdiel Qualified Master Fund, LP | 4.9% | SCHEDULE 13D/A |
| 2025-10-30 | The Vanguard Group | 13.82% | SCHEDULE 13G/A |
| 2026-01-27 | Fivespan Partners, LP | 6.2% | SCHEDULE 13D |
| 2026-02-05 | Fivespan Partners, LP | 7.9% | SCHEDULE 13D/A |
| 2026-02-24 | RPD Fund Management LLC | 9.1% | SCHEDULE 13G |
| 2026-03-05 | Vanguard Portfolio Management | 10.06% | SCHEDULE 13G |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-06-30 | Lead Edge Capital Management, LLC | 6.8% | SCHEDULE 13G |
| 2026-08-14 | RPD Fund Management LLC | 4.4% | SCHEDULE 13G/A |
| 2026-10-30 | Vanguard Portfolio Management | 8.7% | SCHEDULE 13G/A |
Questions about who owns Appian Corp
Who owns Appian Corp?
On this page, 3 holders' latest ownership filings report 5% or more of Appian Corp: Vanguard Portfolio Management (8.7%, Schedule 13G/A, filed 2026-10-30), Fivespan Partners, LP (7.9%, Schedule 13D/A, filed 2026-02-05) and Lead Edge Capital Management, LLC (6.8%, Schedule 13G, filed 2026-06-30).
Who are the largest shareholders of Appian Corp?
By the share each holder's latest filing reports, the largest holders of Appian Corp on this page are Vanguard Portfolio Management (8.7%), Fivespan Partners, LP (7.9%) and Lead Edge Capital Management, LLC (6.8%).
When did Vanguard Portfolio Management buy into Appian Corp?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Portfolio Management on this page is the Schedule 13G, filed 2026-03-05, reporting 10.06%; its latest, Schedule 13G/A filed 2026-10-30, reports 8.7%.
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%); 15 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.
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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.