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Archimedes Tech SPAC Partners II Co. hedge fund holdings

ATIINASDAQ
$10.68-0.01 (-0.09% today)

Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.

Price vs funds buying and selling

ATII · close · 13FReported Aug 14, 2026

Price vs funds buying and selling data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+4.6%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.

Price and fund activity data

Quarterly 13F fund buying and selling activity
QuarterFunds buyingFunds sellingBoughtSoldFilersReported
Q2 2025360$188M$040Aug 14, 2025
Q3 202577$16.9M$7.73M43Nov 14, 2025
Q4 202587$4.29M$3.14M46Feb 14, 2026
Q1 202699$15M$14.2M50May 15, 2026
Q2 20261235$46.7M$92.8M48Aug 14, 2026

Quarterly action breakdown

Q2 2026
48 filers
New position
9
$38.9M+3.6M sh
Increased
3
$7.8M+724K sh
Reduced
20
-$44M-4.08M sh
Out / sold
15
-$48.7M-4.52M sh
Last 4 quarters · free
Reported Aug 14, 2026
FundActionChange in dollarValue% of portfolioReported
Fort Baker Capital Management LPNew Buy+$14.3M$14.3M1.05%Aug 14, 2026
Decagon Asset Management LLPNew Buy+$10.1M$10.1M1.93%Aug 14, 2026
Westchester Capital Management, LLCSell 100%-$9.44M$00.00%Aug 14, 2026
Picton Mahoney Asset ManagementSell 100%-$5.21M$00.00%Aug 13, 2026
K2 Principal Fund, L.P.Added 498.67%+$4.73M$5.67M0.42%Aug 7, 2026
RLH Capital LLCSell 100%-$4.18M$00.00%Aug 10, 2026
J. Goldman & Co LPSell 100%-$3.85M$00.00%Aug 14, 2026
Jain Global LLCReduce 62.98%-$3.39M$2M0.01%Aug 14, 2026
Quarry LPSell 100%-$2.97M$00.00%Aug 14, 2026
Harraden Circle Investments, LLCNew Buy+$2.53M$2.53M0.32%Aug 14, 2026
Berkley W R CorpSell 100%-$2.17M$00.00%Aug 24, 2026
Governors Lane LPReduce 20.37%-$1.67M$6.52M0.54%Aug 14, 2026
Readystate Asset Management LPReduce 91.58%-$1.47M$135K0.00%Aug 14, 2026
TENOR CAPITAL MANAGEMENT Co., L.P.Reduce 8.81%-$1.42M$14.7M0.21%Aug 14, 2026
Gritstone Asset Management LLCSell 100%-$1.03M$00.00%Aug 6, 2026
Lineage Point Capital LPSell 100%-$1M$00.00%Aug 14, 2026
CSS LLCSell 100%-$595K$00.00%Aug 14, 2026
Aristeia Capital, L.L.C.Reduce 20.00%-$539K$2.16M0.03%Aug 14, 2026
DLD Asset Management, LPAdded 30.30%+$490K$2.11M0.14%Aug 13, 2026
Highbridge Capital Management LLCNew Buy+$189K$189K0.00%Aug 14, 2026

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