ACLX · Insider trading · 13F holders · Congress trades
Arcellx Inc (ACLX)
Who is buying and selling ACLX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ACLX at a glance
- No open-market insider purchases or sales of ACLX were filed in the last 90 days.
- 3 13F filers hold ACLX among their 50 largest positions, worth $36.3M combined. The biggest bets by portfolio weight are CIBRA Capital Ltd (4.9%) and Bck Capital Management LP (2.0%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in ACLX.
ACLX insider trading
No open-market insider purchases or sales of ACLX were filed in the last 90 days.
Who owns ACLX? Hedge funds and superinvestors
3 13F filers hold ACLX among their 50 largest positions, worth $36.3M combined. The biggest bets by portfolio weight are CIBRA Capital Ltd (4.9%) and Bck Capital Management LP (2.0%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| AJU IB Investment Co., Ltd.Investment manager | 84.1% | $25.7M | 223,486 | +0.0% shares | Q1 2026 |
| CIBRA Capital LtdHedge fund | 4.9% | $10.2M | 88,623 | New | Q1 2026 |
| Bck Capital Management LPHedge fund | 2.0% | $459K | 4,000 | New | Q1 2026 |
Each manager counts with its latest 13F (Q1 2026: 3). Screen ACLX in the grand portfolio →
ACLX stock trades by members of Congress
No member of Congress has disclosed a trade in ACLX.
ACLX questions and answers
Are insiders buying ACLX stock?
No open-market insider purchases or sales of ACLX were filed in the last 90 days.
Which hedge funds own ACLX?
3 13F filers hold ACLX among their 50 largest positions, worth $36.3M combined. The biggest bets by portfolio weight are CIBRA Capital Ltd (4.9%) and Bck Capital Management LP (2.0%). In their latest 13Fs, 2 managers opened a new position and 0 added to one.
Has Congress traded ACLX?
No member of Congress has disclosed a trade in ACLX.
Who is the largest holder of ACLX?
Among 13F filers, AJU IB Investment Co., Ltd. reports the largest ACLX position, $25.7M (223,486 shares) in its Q1 2026 13F. The biggest bet by portfolio weight is CIBRA Capital Ltd's: 4.9% of its portfolio.
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