ACLX
insider transactionsArcellx, 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
-146.3K
0 buy · 146.3K sell
Net value · 365d
-$14.6M
$0 in · $14.6M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
11
0 buy · 146.3K 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
-
Other·D
Director
—
1.8K sh
Own -100%
-
Other·D
Director
—
16.8K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
59.0K sh
Own -100%
-
Grant·A
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
59.0K sh
Own New
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
88.5K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
61.6K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
20.5K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
94.6K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
70.8K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
32.5K sh
Own -100%
-
Other·D
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
40.2K sh
Own -100%
-
Other·U
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
5.0K sh
-
Other·U
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
—
67.0K sh
-
Other·D
CHIEF MEDICAL OFFICER
—
45.1K sh
Own -100%
-
Grant·A
CHIEF MEDICAL OFFICER
—
45.1K sh
Own New
-
Other·D
CHIEF MEDICAL OFFICER
—
67.7K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
39.2K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
13.0K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
60.1K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
76.2K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
40.0K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
132.4K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
43.6K sh
Own -100%
-
Other·D
CHIEF MEDICAL OFFICER
—
10.9K sh
Own -100%
-
Other·U
CHIEF MEDICAL OFFICER
—
23.7K sh
-
Other·D
Director
—
9.2K sh
Own -100%
-
Other·D
Director
—
8.0K sh
Own -100%
-
Other·D
Director
—
11.5K sh
Own -100%
-
Other·D
Director
—
20.5K sh
Own -100%
-
Other·D
Director
—
27.1K sh
Own -100%
-
Other·D
Director
—
9.2K sh
Own -100%
-
Other·D
Director
—
8.0K sh
Own -100%
-
Other·D
Director
—
11.5K sh
Own -100%
-
Other·D
Director
—
36.8K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
138.9K sh
Own -100%
-
Grant·A
Rami Elghandour KEY
President, CEO and Chairman o…
—
138.9K sh
Own New
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
284.4K sh
Own -100%
-
Grant·A
Rami Elghandour KEY
President, CEO and Chairman o…
—
284.4K sh
Own New
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
147.7K sh
Own -100%
-
Grant·A
Rami Elghandour KEY
President, CEO and Chairman o…
—
147.7K sh
Own New
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
208.3K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
168.0K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
55.5K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
810.1K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
256.0K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
245.1K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
120.0K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
837.6K sh
Own -100%
-
Other·D
Rami Elghandour KEY
President, CEO and Chairman o…
—
1.1M sh
Own -100%
-
Other·U
Rami Elghandour KEY
President, CEO and Chairman o…
—
101.2K sh
-
Other·U
Rami Elghandour KEY
President, CEO and Chairman o…
—
218.5K sh
-
Other·U
Rami Elghandour KEY
President, CEO and Chairman o…
—
198.0K sh
-
Other·U
Rami Elghandour KEY
President, CEO and Chairman o…
—
174.9K sh
-
Other·D
Director
—
9.2K sh
Own -100%
-
Other·D
Director
—
8.0K sh
Own -100%
-
Other·D
Director
—
11.5K sh
Own -100%
-
Other·D
Director
—
61.5K sh
Own -100%
-
Other·D
Director
—
31.8K sh
Own -100%
-
Other·D
Director
—
59.4K sh
Own -100%
-
Other·D
Director
—
13.6K sh
Own -100%
-
Other·U
Director
—
21.7K sh
-
Other·D
Director
—
1.8K sh
Own -100%
-
Other·D
Director
—
16.8K sh
Own -100%
-
Other·U
Director
—
5.0K sh
-
Other·D
Director
—
9.2K sh
Own -100%
-
Other·D
Director
—
8.0K sh
Own -100%
-
Other·D
Director
—
11.5K sh
Own -100%
-
Other·U
Director
—
1.5M sh
-
Other·D
Director
—
9.2K sh
Own -100%
-
Other·D
Director
—
8.0K sh
Own -100%
-
Other·D
Director
—
11.5K sh
Own -100%
-
Other·U
Director
—
2.7K sh
-
Other·U
Director
—
1.9K sh
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
2.1K sh
Own +6%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$18.3K
2.1K sh · $8.66
Own +3%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
36.0K sh
Own +570%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$311.8K
36.0K sh · $8.66
Own +124%
-
Other·G
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
5.0K sh
Own -15%
-
Other·G
Rami Elghandour KEY
President, CEO and Chairman o…
$0
101.2K sh
Own -37%
-
Sell·S
Rami Elghandour KEY
President, CEO and Chairman o…
$10.2M
89.9K sh · $113.92
Own -25%
-
Sell·S
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$1.3M
11.2K sh · $113.82
Own -25%
-
Sell·S
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$6.9K
100 sh · $69.38
Own -0%
-
Sell·S
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$370.6K
5.4K sh · $68.57
Own -11%
-
Sell·S
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$195.0K
2.9K sh · $67.73
Own -5%
-
Sell·S
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$290.6K
4.2K sh · $70.01
Own -7%
-
Sell·S
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$494.2K
7.1K sh · $69.21
Own -11%
-
Other·G
Rami Elghandour KEY
President, CEO and Chairman o…
$0
198.0K sh
Own -35%
-
Other·G
Rami Elghandour KEY
President, CEO and Chairman o…
$0
218.5K sh
Own -28%
-
Exercise·M
Director · 10b5-1
$0
6.0K sh
Own +11%
-
Sell·S
Director · 10b5-1
$450.0K
6.0K sh · $75.00
Own -22%
-
Exercise·M
Director · 10b5-1
$37.7K
6.0K sh · $6.28
Own +28%
-
Sell·S
CHIEF MEDICAL OFFICER
$403.0K
5.9K sh · $68.51
Own -20%
-
Sell·S
CHIEF MEDICAL OFFICER
$487.2K
7.4K sh · $65.51
Own -20%
-
Sell·S
CHIEF MEDICAL OFFICER
$393.3K
6.1K sh · $64.15
Own -14%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
20.5K sh
Own +46%
-
Exercise·M
Rami Elghandour KEY
President, CEO and Chairman o…
$0
56.0K sh
Own +8%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
13.1K sh
Own +50%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
13.1K sh
Own +43%
-
Exercise·M
Director
$0
56.0K sh
Own +50%
-
Exercise·M
Director
$0
56.0K sh
Own +8%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
20.5K sh
Own +50%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
20.5K sh
Own +46%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
13.1K sh
Own +43%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
15.3K sh
Own +53%
-
Exercise·M
Rami Elghandour KEY
President, CEO and Chairman o…
$0
53.1K sh
Own +8%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
16.5K sh
Own New
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
16.5K sh
Own +121%
-
Exercise·M
Director
$0
53.1K sh
Own New
-
Exercise·M
Director
$0
53.1K sh
Own +8%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
15.3K sh
Own New
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
15.3K sh
Own +53%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
16.5K sh
Own +121%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
20.5K sh
Own +242%
-
Exercise·M
Rami Elghandour KEY
President, CEO and Chairman o…
$0
55.5K sh
Own +9%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
13.0K sh
Own New
-
Grant·A
CHIEF MEDICAL OFFICER
$0
67.7K sh
Own New
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
13.0K sh
Own +2192%
-
Exercise·M
Director
$0
55.5K sh
Own New
-
Grant·A
Director
$0
208.3K sh
Own New
-
Exercise·M
Director
$0
55.5K sh
Own +9%
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
20.5K sh
Own New
-
Grant·A
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
88.5K sh
Own New
-
Exercise·M
Michelle Gilson KEY
CHIEF FINANCIAL OFFICER
$0
20.5K sh
Own +242%
-
Exercise·M
CHIEF MEDICAL OFFICER
$0
13.0K sh
Own +2192%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Apr 28, 2026 | Kristin Myers | Other D | 1.8K | — |
| Apr 28, 2026 | Kristin Myers | Other D | 16.8K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 59.0K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Grant A | 59.0K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 88.5K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 61.6K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 20.5K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 94.6K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 70.8K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 32.5K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other D | 40.2K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other U | 5.0K | — |
| Apr 28, 2026 | Michelle Gilson KEY | Other U | 67.0K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 45.1K | — |
| Apr 28, 2026 | Christopher Heery | Grant A | 45.1K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 67.7K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 39.2K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 13.0K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 60.1K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 76.2K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 40.0K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 132.4K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 43.6K | — |
| Apr 28, 2026 | Christopher Heery | Other D | 10.9K | — |
| Apr 28, 2026 | Christopher Heery | Other U | 23.7K | — |
| Apr 28, 2026 | Kavita Patel | Other D | 9.2K | — |
| Apr 28, 2026 | Kavita Patel | Other D | 8.0K | — |
| Apr 28, 2026 | Kavita Patel | Other D | 11.5K | — |
| Apr 28, 2026 | Kavita Patel | Other D | 20.5K | — |
| Apr 28, 2026 | Kavita Patel | Other D | 27.1K | — |
| Apr 28, 2026 | Olivia C Ware | Other D | 9.2K | — |
| Apr 28, 2026 | Olivia C Ware | Other D | 8.0K | — |
| Apr 28, 2026 | Olivia C Ware | Other D | 11.5K | — |
| Apr 28, 2026 | Olivia C Ware | Other D | 36.8K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 138.9K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Grant A | 138.9K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 284.4K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Grant A | 284.4K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 147.7K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Grant A | 147.7K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 208.3K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 168.0K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 55.5K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 810.1K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 256.0K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 245.1K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 120.0K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 837.6K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other D | 1.1M | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other U | 101.2K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other U | 218.5K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other U | 198.0K | — |
| Apr 28, 2026 | Rami Elghandour KEY | Other U | 174.9K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 9.2K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 8.0K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 11.5K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 61.5K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 31.8K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 59.4K | — |
| Apr 28, 2026 | David Charles Lubner | Other D | 13.6K | — |
| Apr 28, 2026 | David Charles Lubner | Other U | 21.7K | — |
| Apr 28, 2026 | Andrew H Galligan | Other D | 1.8K | — |
| Apr 28, 2026 | Andrew H Galligan | Other D | 16.8K | — |
| Apr 28, 2026 | Andrew H Galligan | Other U | 5.0K | — |
| Apr 28, 2026 | Jill Carroll | Other D | 9.2K | — |
| Apr 28, 2026 | Jill Carroll | Other D | 8.0K | — |
| Apr 28, 2026 | Jill Carroll | Other D | 11.5K | — |
| Apr 28, 2026 | Jill Carroll | Other U | 1.5M | — |
| Apr 28, 2026 | Ali Behbahani | Other D | 9.2K | — |
| Apr 28, 2026 | Ali Behbahani | Other D | 8.0K | — |
| Apr 28, 2026 | Ali Behbahani | Other D | 11.5K | — |
| Apr 28, 2026 | Ali Behbahani | Other U | 2.7K | — |
| Apr 28, 2026 | Ali Behbahani | Other U | 1.9K | — |
| Apr 16, 2026 | Michelle Gilson KEY | Exercise M | 2.1K | $0 |
| Apr 16, 2026 | Michelle Gilson KEY | Exercise M | 2.1K | $18.3K |
| Apr 15, 2026 | Michelle Gilson KEY | Exercise M | 36.0K | $0 |
| Apr 15, 2026 | Michelle Gilson KEY | Exercise M | 36.0K | $311.8K |
| Mar 17, 2026 | Michelle Gilson KEY | Other G | 5.0K | $0 |
| Mar 4, 2026 | Rami Elghandour KEY | Other G | 101.2K | $0 |
| Feb 27, 2026 | Rami Elghandour KEY | Sell S | 89.9K | $10.2M |
| Feb 25, 2026 | Michelle Gilson KEY | Sell S | 11.2K | $1.3M |
| Feb 19, 2026 | Michelle Gilson KEY | Sell S | 100 | $6.9K |
| Feb 19, 2026 | Michelle Gilson KEY | Sell S | 5.4K | $370.6K |
| Feb 19, 2026 | Michelle Gilson KEY | Sell S | 2.9K | $195.0K |
| Feb 17, 2026 | Michelle Gilson KEY | Sell S | 4.2K | $290.6K |
| Feb 17, 2026 | Michelle Gilson KEY | Sell S | 7.1K | $494.2K |
| Feb 11, 2026 | Rami Elghandour KEY | Other G | 198.0K | $0 |
| Feb 11, 2026 | Rami Elghandour KEY | Other G | 218.5K | $0 |
| Jan 20, 2026 | David Charles Lubner 10b5-1 | Exercise M | 6.0K | $0 |
| Jan 20, 2026 | David Charles Lubner 10b5-1 | Sell S | 6.0K | $450.0K |
| Jan 20, 2026 | David Charles Lubner 10b5-1 | Exercise M | 6.0K | $37.7K |
| Jan 14, 2026 | Christopher Heery | Sell S | 5.9K | $403.0K |
| Jan 13, 2026 | Christopher Heery | Sell S | 7.4K | $487.2K |
| Jan 12, 2026 | Christopher Heery | Sell S | 6.1K | $393.3K |
| Jan 6, 2026 | Michelle Gilson KEY | Exercise M | 20.5K | $0 |
| Jan 6, 2026 | Rami Elghandour KEY | Exercise M | 56.0K | $0 |
| Jan 6, 2026 | Christopher Heery | Exercise M | 13.1K | $0 |
| Jan 6, 2026 | Christopher Heery | Exercise M | 13.1K | $0 |
| Jan 6, 2026 | Rami Elghandour | Exercise M | 56.0K | $0 |
| Jan 6, 2026 | Rami Elghandour | Exercise M | 56.0K | $0 |
| Jan 6, 2026 | Michelle Gilson KEY | Exercise M | 20.5K | $0 |
| Jan 6, 2026 | Michelle Gilson KEY | Exercise M | 20.5K | $0 |
| Jan 6, 2026 | Christopher Heery | Exercise M | 13.1K | $0 |
| Jan 3, 2026 | Michelle Gilson KEY | Exercise M | 15.3K | $0 |
| Jan 3, 2026 | Rami Elghandour KEY | Exercise M | 53.1K | $0 |
| Jan 3, 2026 | Christopher Heery | Exercise M | 16.5K | $0 |
| Jan 3, 2026 | Christopher Heery | Exercise M | 16.5K | $0 |
| Jan 3, 2026 | Rami Elghandour | Exercise M | 53.1K | $0 |
| Jan 3, 2026 | Rami Elghandour | Exercise M | 53.1K | $0 |
| Jan 3, 2026 | Michelle Gilson KEY | Exercise M | 15.3K | $0 |
| Jan 3, 2026 | Michelle Gilson KEY | Exercise M | 15.3K | $0 |
| Jan 3, 2026 | Christopher Heery | Exercise M | 16.5K | $0 |
| Jan 2, 2026 | Michelle Gilson KEY | Exercise M | 20.5K | $0 |
| Jan 2, 2026 | Rami Elghandour KEY | Exercise M | 55.5K | $0 |
| Jan 2, 2026 | Christopher Heery | Exercise M | 13.0K | $0 |
| Jan 2, 2026 | Christopher Heery | Grant A | 67.7K | $0 |
| Jan 2, 2026 | Christopher Heery | Exercise M | 13.0K | $0 |
| Jan 2, 2026 | Rami Elghandour | Exercise M | 55.5K | $0 |
| Jan 2, 2026 | Rami Elghandour | Grant A | 208.3K | $0 |
| Jan 2, 2026 | Rami Elghandour | Exercise M | 55.5K | $0 |
| Jan 2, 2026 | Michelle Gilson KEY | Exercise M | 20.5K | $0 |
| Jan 2, 2026 | Michelle Gilson KEY | Grant A | 88.5K | $0 |
| Jan 2, 2026 | Michelle Gilson KEY | Exercise M | 20.5K | $0 |
| Jan 2, 2026 | Christopher Heery | Exercise M | 13.0K | $0 |
About ACLX insider trading
This page tracks insider transactions for Arcellx, Inc. (ACLX) 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.