X4 Pharmaceuticals, Inc.
X4 Pharmaceuticals, Inc. (XFOR) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · XFOR · as of Jun 9, 2026
Activity summary
Buy transactions
1
P-Purchase only
Sell transactions
1
12 Months
Buy/Sell ratio
1.00
Buy/Sell (by trades)
Overall sentiment
X4 Pharmaceuticals, Inc. insiders have shown mixed buying and selling activity over the past 12 Months.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
XFOR insider buying and selling by quarter
XFOR insider selling · XFOR insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 9, 2026
Active insiders
Most active in past 12 months · XFOR ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
XFOR executive sell shares · XFOR board member insider trading · XFOR insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 12, 2026 | KIRSKE DAVID CFO | Sale | 16,961 | $73K | Form 4 |
| Oct 23, 2025 | Craig Adam R Executive Chairman · Director | Purchase | 86,206 | $250K | Form 4 |
| Aug 14, 2025 | Volpone John President | Award | 289,881 | — | Form 4 |
| Aug 14, 2025 | Craig Adam R Executive Chairman · Director | Award | 289,881 | — | Form 4 |
| Aug 14, 2025 | KIRSKE DAVID CFO | Award | 193,254 | — | Form 4 |
| May 20, 2025 | Thoren Natasha Fay Chief Legal Officer | Award | 3,333 | — | Form 4 |
| Jun 9, 2025 | Stewart Murray Director | Award | 1,500 | — | Form 4 |
| Jun 9, 2025 | de Craecker Francoise Director | Award | 1,500 | — | Form 4 |
| Jun 9, 2025 | Bridger Gary Director | Award | 1,500 | — | Form 4 |
| Jun 9, 2025 | Woods Keith Director | Award | 1,500 | — | Form 4 |
| Jun 9, 2025 | MCGIRR DAVID W J Director | Award | 1,500 | — | Form 4 |
| Jun 9, 2025 | WYZGA MICHAEL S Director | Award | 1,500 | — | Form 4 |
| May 16, 2025 | Baldry Mark Chief Commercial Officer | Purchase | 1,032 | $3K | Form 4 |
| Feb 12, 2025 | Arbet-Engels Christophe Chief Medical Officer | Award | 850,000 | — | Form 4 |
| Feb 12, 2025 | Mostafa Adam S. CFO | Award | 850,000 | — | Form 4 |
| Feb 12, 2025 | Ragan Paula President and CEO · Director | Award | 2,250,000 | — | Form 4 |
| Feb 12, 2025 | Baldry Mark Chief Commercial Officer | Award | 600,000 | — | Form 4 |
| Nov 15, 2024 | Baldry Mark Chief Commercial Officer | Purchase | 13,404 | $5K | Form 4 |
| May 17, 2024 | Baldry Mark Chief Commercial Officer | Purchase | 21,646 | $15K | Form 4 |
| Feb 12, 2025 | DiBiase Mary COO | Award | 650,000 | — | Form 4 |
| Jan 23, 2025 | Ragan Paula President and CEO · Director | Award | 169,940 | — | Form 4 |
| Jan 24, 2025 | Ragan Paula President and CEO · Director | Sale | 76,473 | $35K | Form 4 |
| Jan 23, 2025 | Mostafa Adam S. CFO | Award | 74,773 | — | Form 4 |
| Jan 24, 2025 | Mostafa Adam S. CFO | Sale | 74,773 | $34K | Form 4 |
| Jan 23, 2025 | Baldry Mark Chief Commercial Officer | Award | 74,773 | — | Form 4 |
Craig Adam R
Executive Chairman · Director
Date
Oct 23
Shares
86,206
Price
$2.90
Value
$250K
Craig Adam R
Executive Chairman · Director
Date
Aug 14
Shares
289,881
Price
—
Value
—
Baldry Mark
Chief Commercial Officer
Date
May 16
Shares
1,032
Price
$2.48
Value
$3K
Arbet-Engels Christophe
Chief Medical Officer
Date
Feb 12
Shares
850,000
Price
—
Value
—
Ragan Paula
President and CEO · Director
Date
Feb 12
Shares
2,250,000
Price
—
Value
—
Baldry Mark
Chief Commercial Officer
Date
Nov 15
Shares
13,404
Price
$0.34
Value
$5K
Baldry Mark
Chief Commercial Officer
Date
May 17
Shares
21,646
Price
$0.68
Value
$15K
Ragan Paula
President and CEO · Director
Date
Jan 23
Shares
169,940
Price
—
Value
—
Ragan Paula
President and CEO · Director
Date
Jan 24
Shares
76,473
Price
$0.45
Value
$35K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About XFOR insider trading
XFOR insider trades
X4 Pharmaceuticals, Inc. (XFOR) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including KIRSKE DAVID (CFO), Craig Adam R (Executive Chairman · Director), Volpone John (President). Over the past 12 months, 3 insiders have filed transactions with the SEC. XFOR insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For X4 Pharmaceuticals, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
XFOR insider trading · 5 questionsThe insiders of X4 Pharmaceuticals, Inc. (XFOR) include executives and directors such as KIRSKE DAVID (CFO), Craig Adam R (Executive Chairman · Director), Volpone John (President), among others. Over the past 12 months, 3 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 9, 2026