APPN SEC Filing News — Appian Corporation

Latest SEC filings for Appian Corporation (APPN) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-08.

Appian Corporation operates as a software company in the United States, Australia, Canada, France, Germany, India, Italy, Japan, Mexico, the Netherlands, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom, and internationally. The company offers The Appian Platform, an integrated automation platform that enables organizations to design, automate, and optimize critical business processes. The company also offers cloud subscriptions bundled with maintenance and support and hosting…
Sector: Technology Industry: Software - Infrastructure Market Cap: $3.0B CIK: 1441683
12
Total Filings
0
Bullish Classifications
3
Bearish Classifications
9
Insider Transactions
0
Material Events (8-K)
0
Periodic Reports
Rule-based classifications for APPN currently lean bearish. Of the 12 filing records displayed, 3 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
APPN Filing Activity Snapshot 2026-08-07 — 2026-10-08
Insider Transactions (Form 4)
0 buys vs 3 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$1.73M
Matthew W. Calkins · 2026-09-08
45,000 shares · Form 144
Form 144 Notices
3
Proposed insider sales filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 9 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 9 filings in this group are Form 4s for Appian Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 9 insider filings shown, the breakdown is 5 compensation award, 3 open-market sale and 1 option exercise. 3 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×5
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×3
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Option exercise ×1
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Form 4 Open-market sale Insider Selling 2026-10-08

APPN insider Calkins Matthew W (Director, CEO and President, 10% Owner) sold 45,000 shares (~$1.69M)

Calkins Matthew W, listed as Director, CEO and President, 10% Owner at APPIAN CORP, reported an open-market sale of 45,000 APPN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 32,600 $37.32 $1.22M
S Open-market sale 12,400 $37.97 $470.8K
Filing: Form 4 (Insider Transaction) Insider: Calkins Matthew W (Director, CEO and President, 10% Owner) Shares: 45,000 Est. Value: $1.69M
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-02

APPN insider Form 4 filed for equity award, exercise, or tax withholding

Edwards Shirley Ann (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 886 — —
Filing: Form 4 (Insider Transaction) Insider: Edwards Shirley Ann (Director) Shares: 886
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-02

APPN insider Form 4 filed for equity award, exercise, or tax withholding

Hartman Carl Joseph II (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 886 — —
Filing: Form 4 (Insider Transaction) Insider: Hartman Carl Joseph II (Director) Shares: 886
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-02

APPN insider Form 4 filed for equity award, exercise, or tax withholding

Link David Forrest (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 886 — —
Filing: Form 4 (Insider Transaction) Insider: Link David Forrest (Director) Shares: 886
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-02

APPN insider Form 4 filed for equity award, exercise, or tax withholding

Lynch Mark Steven (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 886 — —
Filing: Form 4 (Insider Transaction) Insider: Lynch Mark Steven (Director) Shares: 886
View on SEC EDGAR → Open Filing Document →
Form 4 Compensation award Tax / Compensation Filing 2026-10-02

APPN insider Form 4 filed for equity award, exercise, or tax withholding

Kilberg Bobbie G (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 886 — —
Filing: Form 4 (Insider Transaction) Insider: Kilberg Bobbie G (Director) Shares: 886
View on SEC EDGAR → Open Filing Document →
Form 4 Option exercise Tax / Compensation Filing 2026-09-11

APPN insider Form 4 filed for equity award, exercise, or tax withholding

Kilberg Bobbie G (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.

Transactions reported on this filing
Code Nature Shares Price Value
C Derivative conversion 10,800 — —
M Option exercise derivative · Stock Option (Right to Buy) 10,800 — —
M Option exercise derivative · Class B Common Stock 10,800 $11.17 $120.6K
C Derivative conversion derivative · Class B Common Stock 10,800 — —
Filing: Form 4 (Insider Transaction) Insider: Kilberg Bobbie G (Director) Shares: 10,800
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-09-10

APPN insider Calkins Matthew W (Director, CEO and President, 10% Owner) sold 45,000 shares (~$1.58M)

Calkins Matthew W, listed as Director, CEO and President, 10% Owner at APPIAN CORP, reported an open-market sale of 45,000 APPN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 23,888 $34.73 $829.6K
S Open-market sale 19,116 $35.58 $680.1K
S Open-market sale 1,996 $37.07 $74.0K
Filing: Form 4 (Insider Transaction) Insider: Calkins Matthew W (Director, CEO and President, 10% Owner) Shares: 45,000 Est. Value: $1.58M
View on SEC EDGAR → Open Filing Document →
Form 4 Open-market sale Insider Selling 2026-08-11

APPN insider Calkins Matthew W (Director, CEO and President, 10% Owner) sold 45,000 shares (~$1.55M)

Calkins Matthew W, listed as Director, CEO and President, 10% Owner at APPIAN CORP, reported an open-market sale of 45,000 APPN shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 2,580 $31.66 $81.7K
S Open-market sale 1,609 $33.09 $53.2K
S Open-market sale 9,264 $34.34 $318.1K
S Open-market sale 31,547 $34.79 $1.10M
Filing: Form 4 (Insider Transaction) Insider: Calkins Matthew W (Director, CEO and President, 10% Owner) Shares: 45,000 Est. Value: $1.55M
View on SEC EDGAR → Open Filing Document →
Proposed Insider Sales 3 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Appian Corporation has 3 such notices in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-10-07

APPN Form 144 filed for proposed insider sale by Matthew W. Calkins (45,000 shares) ~$1.68M

Matthew W. Calkins filed a Form 144 with the SEC indicating intent to sell APPN (APPIAN CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Matthew W. Calkins Shares: 45,000 Est. Value: $1.68M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-09-08

APPN Form 144 filed for proposed insider sale by Matthew W. Calkins (45,000 shares) ~$1.73M

Matthew W. Calkins filed a Form 144 with the SEC indicating intent to sell APPN (APPIAN CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Matthew W. Calkins Shares: 45,000 Est. Value: $1.73M
View on SEC EDGAR → Open Filing Document →
Form 144 Proposed Insider Sale 2026-08-07

APPN Form 144 filed for proposed insider sale by Matthew W. Calkins (45,000 shares) ~$1.37M

Matthew W. Calkins filed a Form 144 with the SEC indicating intent to sell APPN (APPIAN CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: Matthew W. Calkins Shares: 45,000 Est. Value: $1.37M
View on SEC EDGAR → Open Filing Document →

How we classify Appian Corporation's filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on APPN. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — APPN SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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