XLO
insider transactionsXilio Therapeutics, Inc. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-3.9K
5.0K buy · 8.9K sell
Net value · 365d
$38.3K
$44.0K in · $5.7K out
Sentiment · 365d
Net selling
89% buying · 11% selling
Open-market trades · 365d
3
5.0K buy · 8.9K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Director
$0
5.0K sh
Own New
-
Grant·A
Director
$0
10.0K sh
Own New
-
Buy·P
Director
$44.0K
5.0K sh · $8.79
Own +100%
-
Grant·A
Aoife Brennan KEY
President and CEO
$0
700.0K sh
Own New
-
Sell·S
Christopher James Frankenfield KEY
Chief Financial Officer · 10b5-1
$4.5K
7.0K sh · $0.64
Own -22%
-
Sell·S
SVP, FINANCE AND ACCOUNTING · 10b5-1
$1.2K
1.8K sh · $0.64
Own -22%
-
Exercise·M
Rene Russo KEY
PRESIDENT AND CEO
$0
44.2K sh
Own +100%
-
Exercise·M
Rene Russo KEY
PRESIDENT AND CEO
—
44.2K sh
Own +16%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
16.6K sh
Own +100%
-
Exercise·M
CHIEF MEDICAL OFFICER
—
16.6K sh
Own +100%
-
Exercise·M
Christopher James Frankenfield KEY
Chief Financial Officer · 10b5-1
$0
19.4K sh
Own +100%
-
Exercise·M
Christopher James Frankenfield KEY
Chief Financial Officer · 10b5-1
—
19.4K sh
Own +156%
-
Exercise·M
SVP, FINANCE AND ACCOUNTING · 10b5-1
$0
5.0K sh
Own +100%
-
Exercise·M
SVP, FINANCE AND ACCOUNTING · 10b5-1
—
5.0K sh
Own +156%
-
Grant·A
Rene Russo KEY
PRESIDENT AND CEO
$0
1.5M sh
Own New
-
Grant·A
CHIEF MEDICAL OFFICER
$0
451.9K sh
Own New
-
Grant·A
Christopher James Frankenfield KEY
Chief Financial Officer · 10b5-1
$0
668.8K sh
Own New
-
Grant·A
SVP, FINANCE AND ACCOUNTING · 10b5-1
$0
95.2K sh
Own New
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 11, 2026 | Yuan Xu | Grant A | 5.0K | $0 |
| Jun 11, 2026 | James Samuel Shannon | Grant A | 5.0K | $0 |
| Jun 11, 2026 | Robert W. Ross | Grant A | 5.0K | $0 |
| Jun 11, 2026 | Daniel J. Curran | Grant A | 5.0K | $0 |
| Jun 11, 2026 | Aoife Brennan | Grant A | 5.0K | $0 |
| Jun 11, 2026 | Akintunde Olatokumbo Bello | Grant A | 5.0K | $0 |
| Apr 15, 2026 | Cheryl R Blanchard | Grant A | 10.0K | $0 |
| Mar 26, 2026 | James Samuel Shannon | Buy P | 5.0K | $44.0K |
| Jan 6, 2026 | Aoife Brennan KEY | Grant A | 700.0K | $0 |
| Jan 2, 2026 | Christopher James Frankenfield KEY 10b5-1 | Sell S | 7.0K | $4.5K |
| Jan 2, 2026 | Kevin M. Brennan 10b5-1 | Sell S | 1.8K | $1.2K |
| Jan 1, 2026 | Rene Russo KEY | Exercise M | 44.2K | $0 |
| Jan 1, 2026 | Rene Russo KEY | Exercise M | 44.2K | — |
| Jan 1, 2026 | Katarina Luptakova | Exercise M | 16.6K | $0 |
| Jan 1, 2026 | Katarina Luptakova | Exercise M | 16.6K | — |
| Jan 1, 2026 | Christopher James Frankenfield KEY 10b5-1 | Exercise M | 19.4K | $0 |
| Jan 1, 2026 | Christopher James Frankenfield KEY 10b5-1 | Exercise M | 19.4K | — |
| Jan 1, 2026 | Kevin M. Brennan 10b5-1 | Exercise M | 5.0K | $0 |
| Jan 1, 2026 | Kevin M. Brennan 10b5-1 | Exercise M | 5.0K | — |
| Dec 31, 2025 | Rene Russo KEY | Grant A | 1.5M | $0 |
| Dec 31, 2025 | Katarina Luptakova | Grant A | 451.9K | $0 |
| Dec 31, 2025 | Christopher James Frankenfield KEY 10b5-1 | Grant A | 668.8K | $0 |
| Dec 31, 2025 | Kevin M. Brennan 10b5-1 | Grant A | 95.2K | $0 |
About XLO insider trading
This page tracks insider transactions for Xilio Therapeutics, Inc. (XLO) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.