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Disclosery

PMTR PERIMETER ACQUISITION CORP I

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COM CL A (common), issuer CIK 2061473

43 managers (43 13F filers) reported a position in PMTR shares at 2025-09-30, 21,769,276 shares in all. 19 filers opened a position and 1 filer sold out during the quarter.

Managers
43
13F filers
43
New
19
Added
4
Reduced
6
Sold out
1
Shares held by filers
21,769,276

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Harraden Circle Investments, LLCin group Harraden Circle Investments, …1,899,998$19.3M3.76%013F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP1,500,000$15.4M0.1%013F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC1,500,000$15.4M0.09%013F-HRTimelineGroup
Alberta Investment Management Corp1,500,000$15.4M0.11%013F-HR/ATimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…1,250,000$12.8M0.02%-250,00013F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK1,206,314$12.3M0.02%new13F-HRTimelineGroup
Meteora Capital, LLC1,202,619$12.2M1.3%+157,59613F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP1,200,000$12.2M0.24%new13F-HRTimeline
Governors Lane LP1,167,000$11.9M1.64%013F-HRTimeline
Saba Capital Management, L.P.in group Saba Capital Management, L.P.1,055,870$10.7M0.35%-2,82213F-HRTimelineGroup
Fort Baker Capital Management LP800,000$8.14M1.34%013F-HRTimeline
Sculptor Capital LPin group Sculptor Capital LP660,249$6.71M0.09%+160,24913F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP537,309$5.46M0.01%013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.500,000$5.12M<0.01%013F-HRTimelineGroup
Ghisallo Capital Management LLC500,000$5.12M0.17%new13F-HRTimeline
HBK INVESTMENTS L P400,000$4.07M0.06%new13F-HRTimeline
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC375,187$3.82M0.13%-41,14113F-HRTimelineGroup
Periscope Capital Inc.365,000$3.71M0.9%+160,60013F-HRTimeline
Shaolin Capital Management LLC342,829$3.49M0.17%-283,60613F-HRTimeline
PICTON MAHONEY ASSET MANAGEMENT325,000$3.31M0.04%new13F-HRTimeline
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC301,692$3.09M0.08%new13F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…300,000$3.05M0.02%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC298,000$3.03M<0.01%new13F-HRTimelineGroup
Centiva Capital, LP250,000$2.56M0.24%new13F-HRTimeline
K2 PRINCIPAL FUND, L.P.247,237$2.51M0.26%013F-HRTimeline
Radcliffe Capital Management, L.P.203,057$2.07M0.13%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC200,000$2.05M<0.01%new13F-HRTimelineGroup
Context Capital Management, LLC200,000$2.03M0.06%013F-HRTimeline
DLD Asset Management, LP199,150$2.03M0.26%new13F-HR/ATimeline
ARISTEIA CAPITAL, L.L.C.150,000$1.53M0.05%013F-HRTimeline
BERKLEY W R CORP148,830$1.51M0.1%013F-HRTimeline
Schonfeld Strategic Advisors LLC126,825$1.29M0.01%new13F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC122,530$1.24M0.03%-4,40413F-HRTimelineGroup
Weiss Asset Management LPin group Weiss Asset Management LP106,894$1.1M0.02%-143,10613F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
OCONNOR, A Distinct Business Unit of UB…100,000$1.02M0.03%013F-HR/ATimelineThe filing omitted confidential holdings, a later amendment may add them.
TENOR CAPITAL MANAGEMENT Co., L.P.100,000$1.02M0.01%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC98,304$1000K<0.01%new13F-HRTimelineGroup
Wealthspring Capital LLCin group Wealthspring Capital LLC97,900$996K0.24%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO66,680$683K<0.01%new13F-HR/ATimelineGroup
HEIGHTS CAPITAL MANAGEMENT, INCin group HEIGHTS CAPITAL MANAGEMENT, I…58,925$604K0.19%new13F-HR/ATimelineGroup
Clear Street Group Inc.in group Clear Street Group Inc.55,806$568K<0.01%13F-HRTimelineGroup
CSS LLC/IL50,000$508K0.03%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY71$722<0.01%+1513F-HR/ATimelineGroup