13F Insight
DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger

PERIMETER ACQUISITION CORP I

51 institutions still hold PERIMETER ACQUISITION CORP I as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP G7010A129·51 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 7.9%
vs prior quarter
13F value held
$168M
59.0% inst. owned
of float
Holders
51
+28 QoQ
filers reporting
Activity
+61 / −85
+856 added · −841 reduced
this quarter
Concentration
14.93%
Harraden Circle Investments, LLC #1
top holder share
AI Holders Summary · Q1 2026

51 institutions reported PERIMETER ACQUISITION CORP I in Q1 2026. Harraden Circle Investments, LLC leads at 14.9% of the visible book. +28 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Harraden Circle Investments, LLC
CIK 0001910592
$25M2.4M5.02%Q1 202602
Fort Baker Capital Management LP
CIK 0001688382
$16M1.6M1.27%Q1 202603
LINDEN ADVISORS LP
CIK 0001279396
$15M1.5M0.09%Q1 202604
Alberta Investment Management Corp
CIK 0001463559· Sovereign
$15M1.5M0.09%Q1 202605
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
$12M1.2M0.25%Q1 202606
Governors Lane LP
CIK 0001644187
$11M1.1M0.73%Q1 202607
TORONTO DOMINION BANK
CIK 0000947263
$9M909K0.01%Q1 202608
Saba Capital Management, L.P.
CIK 0001510281
$8M805K0.23%Q1 202609
METEORA CAPITAL, LLC
CIK 0001905106
$7M698K0.53%Q1 202610
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$6M537K0.00%Q1 202611
Lineage Point Capital LP
CIK 0002093311
$5M531K2.07%Q4 202512
D. E. Shaw & Co., Inc.
CIK 0001009207
$5M500K0.00%Q4 202513
Sculptor Capital LP
CIK 0001054587
$5M500K0.05%Q1 202614
Ghisallo Capital Management LLC
CIK 0001825214
$5M500K0.14%Q1 202615
HBK INVESTMENTS L P
CIK 0001011443
$4M360K0.04%Q1 202616
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
CIK 0001535845
$4M350K0.01%Q1 202617
Radcliffe Capital Management, L.P.
CIK 0001218275
$3M339K0.26%Q1 202618
Centiva Capital, LP
CIK 0001692507
$3M338K0.03%Q1 202619
PICTON MAHONEY ASSET MANAGEMENT
CIK 0001539041
$3M325K0.02%Q1 202620
PERISCOPE CAPITAL INC.
CIK 0001695320
$3M323K0.37%Q1 2026
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