13F Insight
DOSSIER · 13F Holders · Q1 2026Mega-capCrowded

ARCHIMEDES TECH SPAC PARTNER

53 institutions still hold ARCHIMEDES TECH SPAC PARTNER as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G04537109·53 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.4%
vs prior quarter
13F value held
$153M
70.0% inst. owned
of float
Holders
53
+115 QoQ
filers reporting
Activity
+85 / −114
+1,045 added · −966 reduced
this quarter
Concentration
10.21%
TENOR CAPITAL MANAGEMENT Co., L.P. #1
top holder share
AI Holders Summary · Q1 2026

53 institutions reported ARCHIMEDES TECH SPAC PARTNER in Q1 2026. TENOR CAPITAL MANAGEMENT Co., L.P. leads at 10.2% of the visible book. +115 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
TENOR CAPITAL MANAGEMENT Co., L.P.
CIK 0001346554
$16M1.5M0.24%Q1 202602
D. E. Shaw & Co., Inc.
CIK 0001009207
$12M1.1M0.01%Q4 202503
LINDEN ADVISORS LP
CIK 0001279396
$10M1.0M0.06%Q1 202604
AQR Arbitrage LLC
CIK 0001167456
$10M964K0.21%Q4 202505
Westchester Capital Management, LLC
CIK 0001512805
$9M907K0.43%Q1 202606
LMR Partners LLP
CIK 0001578621
$9M850K0.02%Q1 202607
Ghisallo Capital Management LLC
CIK 0001825214
$8M800K0.23%Q1 202608
Governors Lane LP
CIK 0001644187
$8M760K0.51%Q1 202609
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$8M750K0.05%Q1 202610
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$8M725K0.01%Q1 202611
Hudson Bay Capital Management LP
CIK 0001393825
$7M700K0.03%Q1 202612
Radcliffe Capital Management, L.P.
CIK 0001218275
$7M661K0.52%Q1 202613
TORONTO DOMINION BANK
CIK 0000947263
$7M650K0.01%Q1 202614
Sculptor Capital LP
CIK 0001054587
$6M601K0.07%Q1 202615
Jain Global LLC
CIK 0002024579
$5M500K0.02%Q1 202616
PICTON MAHONEY ASSET MANAGEMENT
CIK 0001539041
$5M500K0.04%Q1 202617
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
$5M450K0.10%Q1 202618
RIVERNORTH CAPITAL MANAGEMENT, LLC
CIK 0001447578
$4M428K0.22%Q1 202619
RLH Capital LLC
CIK 0002008031
$4M401K2.13%Q1 202620
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS
CIK 0001083190
$4M400K0.02%Q1 2026
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