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Disclosery

ATII ARCHIMEDES TECH SPAC PARTNER

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ORD SHS (common), issuer CIK 2028516

43 managers (43 13F filers) reported a position in ATII shares at 2025-06-30, 21,123,433 shares in all. 42 filers opened a position and 0 filers sold out during the quarter.

Managers
43
13F filers
43
New
42
Added
0
Reduced
0
Sold out
0
Shares held by filers
21,123,433

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, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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
TENOR CAPITAL MANAGEMENT Co., L.P.1,500,000$15.3M0.21%new13F-HRTimeline
Sculptor Capital LPin group Sculptor Capital LP1,300,000$13.3M0.22%new13F-HRTimelineGroup
Magnetar Financial LLCin group Magnetar Financial LLC1,300,000$13.2M0.06%new13F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,138,500$11.6M0.01%new13F-HRTimelineGroup
Linden Advisors LPin group Linden Advisors LP1,000,000$10.2M0.06%new13F-HRTimelineGroup
AQR Arbitrage LLCin group AQR CAPITAL MANAGEMENT LLC969,382$9.92M0.23%new13F-HRTimelineGroup
GLAZER CAPITAL, LLCin group GLAZER CAPITAL, LLC875,087$8.95M0.32%new13F-HRTimelineGroup
LMR Partners LLPin group LMR Partners LLP850,000$8.7M0.14%new13F-HRTimelineGroup
Ghisallo Capital Management LLC800,000$8.18M0.22%new13F-HRTimeline
Alberta Investment Management Corp750,000$7.67M0.06%new13F-HR/ATimeline
Governors Lane LP750,000$7.67M1.05%new13F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP725,000$7.42M0.01%new13F-HRTimelineGroup
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…700,000$7.16M0.05%new13F-HR/ATimelineGroup
Driehaus Capital Management LLC664,298$6.8M0.05%new13F-HRTimeline
Westchester Capital Management, LLCin group Westchester Capital Managemen…650,000$6.65M0.39%new13F-HRTimelineGroup
PICTON MAHONEY ASSET MANAGEMENT500,000$5.12M0.07%new13F-HRTimeline
Jain Global LLC500,000$5.12M0.08%new13F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP450,000$4.6M0.09%new13F-HRTimeline
Periscope Capital Inc.450,000$4.6M1.74%new13F-HRTimeline
MIZUHO SECURITIES USA LLCin group MIZUHO FINANCIAL GROUP INC455,000$4.6M0.1%13F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…400,000$4.09M0.02%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK394,700$4.04M0.01%new13F-HRTimelineGroup
Meteora Capital, LLC392,530$4.02M0.75%new13F-HRTimeline
Radcliffe Capital Management, L.P.326,920$3.34M0.25%new13F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC323,854$3.31M<0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC320,000$3.27M0.02%new13F-HRTimeline
DLD Asset Management, LP300,000$3.07M0.37%new13F-HR/ATimeline
Mint Tower Capital Management B.V.300,000$3.07M0.46%new13F-HRTimeline
Centiva Capital, LP285,515$2.92M0.19%new13F-HRTimeline
Verition Fund Management LLC251,475$2.57M0.01%new13F-HRTimeline
ARISTEIA CAPITAL, L.L.C.250,000$2.56M0.07%new13F-HRTimeline
WHITEBOX ADVISORS LLC250,000$2.56M0.07%new13F-HRTimeline
BERKLEY W R CORP228,206$2.33M0.14%new13F-HRTimeline
OCONNOR, A Distinct Business Unit of UB…200,000$2.05M0.06%new13F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Shaolin Capital Management LLC200,000$2.05M0.09%new13F-HRTimeline
K2 PRINCIPAL FUND, L.P.160,170$1.64M0.3%new13F-HRTimeline
GRITSTONE ASSET MANAGEMENT LLC100,000$1.02M1.01%new13F-HRTimeline
CSS LLC/IL50,000$512K0.03%new13F-HRTimeline
CLEAR STREET LLC37,534$384K<0.01%new13F-HRTimeline
WOLVERINE ASSET MANAGEMENT LLCin group WOLVERINE ASSET MANAGEMENT LLC15,141$155K<0.01%new13F-HRTimelineGroup
Warberg Asset Management LLC10,000$102K0.03%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY121$1.24K<0.01%new13F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0new13F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.