DMKJ
ACLX

David M. Knott Jr’s Arcellx ACLX Stock Holding History

David M. Knott Jr’s Portfolio ACLX Stock Details ACLX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$2.23M Sell
19,433
-6,267
-24% -$553K 1.33% 19
2025
Q4 		$1.68M Hold
25,700
– – 0.78% 21
2025
Q3 		$2.11M Hold
25,700
– – 0.85% 21
2025
Q2 		$1.69M Buy
25,700
+10,700
+71% +$666K 0.77% 23
2025
Q1 		$984K Buy
+15,000
New +$1.02M 0.46% 32
2023
Q4 		– Sell
-20,000
Closed -$718K – 114
2023
Q3 		$718K Sell
20,000
-20,000
-50% -$690K 0.27% 46
2023
Q2 		$1.26M Buy
40,000
+12,000
+43% +$459K 0.5% 34
2023
Q1 		$863K Buy
+28,000
New +$849K 0.34% 45

Other funds holding ACLX

GS
Gilead Sciences Foster City, California $2.12B AUM 143.53% 1-Year Est. Return
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
SOCM
SR One Capital Management Wayne, Pennsylvania $915M AUM 209.71% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return

David M. Knott Jr's ACLX Position: Q1 2026 in Review

David M. Knott Jr reduced its Arcellx (ACLX) stake by 24% in Q1 2026, selling an estimated $553K and leaving 19,433 shares worth $2.23M. The position accounts for 1.33% of the portfolio, ranked #19.

David M. Knott Jr first reported a position in ACLX in Q1 2023 and has held it in 8 quarters since. 239 funds tracked by Wall St. Rank hold ACLX as of Q1 2026.

  • David M. Knott Jr held 19,433 shares of Arcellx worth $2.23M as of Q1 2026.
  • David M. Knott Jr sold 6,267 Arcellx shares in Q1 2026, an estimated $553K.
  • Arcellx made up 1.33% of David M. Knott Jr's portfolio in Q1 2026, its #19 holding.
  • David M. Knott Jr first reported a position in Arcellx in Q1 2023 and has held it in 8 quarters since.
  • 239 funds tracked by Wall St. Rank held Arcellx as of Q1 2026.

Based on David M. Knott Jr's 13F filing for Q1 2026, filed 14 May 2026.