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PACH · Pioneer Acquisition I Corp · Holdings

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$10.36 +0.00 (+0.00%) At close · Oct 20
Rebalance outlook locked
Going-concern doubt — flagged Aug 14, 2026

Substantial doubt about the company's ability to continue as a going concern.

“The Company's liquidity condition raises substantial doubt about the Company's ability to continue as a going concern for a period of time within one year after the date that the accompanying unaudited condensed financial statements are issued. Management plans to address this uncertainty through a Business Combination. If a Business Combination is not consummated by the end of the Combination Period, currently June 20, 2027, there will be a mandatory liquidation and subsequent dissolution of the Company, which raises substantial doubt about the Company's ability to continue as a going concern.”
View the 10-Q filed Aug 14, 2026
Market Cap
$294.64M
Shares
28.44M
Volume · Oct 20 801.66K Avg daily vol (3M) 120K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of PACH: 13F, 13D and 13G, insiders and funds →
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 77
Total Value: $252,034,876
Total Shares: 34,531,489
Showing 1–100 of 127 holdings by value · page 1 of 2

Institutional Ownership Trend

6 quarters

Holder Concentration

Across 77 13F filers
Top Holder
5.1%
Jun 2025 → Jun 2026 · range 4.2% – 5.8%
of institutional value
Top 5
23.1%
Jun 2025 → Jun 2026 · range 19.8% – 25.7%
of institutional value
Top 10
39.6%
Jun 2025 → Jun 2026 · range 35.2% – 43.8%
of institutional value
HHI
262
Jun 2025 → Jun 2026 · range 243 – 299
Broadly held

Who Holds PACH

Last 6 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 77 filers, like-for-like change +1.4%; actively managed books +0.8%; index-like books +269820.6%.

Holder type Share Filers Change
Registered adviser 60.7% 43 +0.7%
Exempt adviser 4.0% 2 0.0%
Adviser 3.7% 3 +32.8%
Bank 2.9% 3 -6.5%
Insurer 0.6% 1 -10.9%
Benefit plan 1.9% 1 0.0%
Non-US 10.4% 6 -4.7%
Holding company 0.0% 1 -27.9%
Broker-dealer 0.0% 0 —
Unknown 15.9% 17 +5.6%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Conviction and Crowding

67 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
1
1.49% of filers hold it in their top 10
Mar 31, 2026: 1
Holders above 5%
0
median weight 0.108%
Mar 31, 2026: 0
Crowding
—
the issuer has more than one class of common stock, so its count is the total across classes
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
the issuer has more than one class of common stock, so its count is the total across classes
Top 10 holders
43.5%
of 13F shares, Herfindahl 0.029
Active holders
+0.2%
like-for-like share change of active filers
5% stakes on record
2
0 13D, 2 13G (2 institutional, 0 passive, 0 exempt)
How long holders have held it value-weighted 3.7 quarters
Under 1 year 23.4% 1 to 3 years 76.6% 3 years or more 0.000% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$10.00
estimated per share
Mar 31, 2026: $9.99
Quarter-end price
$10.23
implied by 13F values
Estimated gain or loss
+2.3%
price against the estimated cost
Estimated at a loss
0.000%
of costed 13F value

Estimated cost covers 97.5% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies PACH's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 OYSE Oyster Enterprises II Acquisition Corp 6
2 SZZL Sizzle Acquisition Corp. II 7
3 LWAC LightWave Acquisition Corp. 6
4 GTERA Globa Terra Acquisition Corp 6
5 WENN WEN Acquisition Corp 6
6 CCAQ Collective Acquisition Corp. 6
7 TVAI Thayer Ventures Acquisition Corp II 5
8 DMII Drugs Made In America Acquisition II Corp. 6
9 XSLL Xsolla SPAC 1 4
10 SPEG Silver Pegasus Acquisition Corp. 4

Shareholder Targets

13F filers that own its peers but not PACH, quarter ended Jun 30, 2026

Found through its holder-overlap peers: OYSE, SZZL, LWAC, GTERA, WENN, CCAQ, TVAI, DMII, XSLL, SPEG, OBA, BPAC, FMAC, SOCA, INAC, MKLY, BLZR, CRAQ, CHEC, KOYN. 52 filers in all.

# Filer In peers
1 HIGHBRIDGE CAPITAL MANAGEMENT LLC Registered adviser, Diversified active $71,195,306 19 held
2 Crossingbridge Advisors, LLC Adviser, Diversified active $60,101,794 12 held
3 Schonfeld Strategic Advisors LLC Registered adviser, Systematic-like $31,336,592 18 held
4 Bulldog Investors, LLP Registered adviser, Diversified active $18,272,638 7 held
5 GOLDMAN SACHS GROUP INC Holding company, Index-like $17,823,826 6 held
6 Davidson Kempner Capital Management LP Registered adviser, Diversified active $15,188,000 3 held
7 Calamos Advisors LLC Registered adviser, Diversified active $15,061,959 7 held
8 Saba Capital Management, L.P. Registered adviser, Diversified active $12,764,902 2 held
9 ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active $12,144,000 1 held
10 RLH Capital LLC Unknown, Diversified active $11,987,066 7 held

Fund Ownership of PACH by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 0.00% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 0.00% 0
Index ETFs 0.00% 0
Active ETFs 0.00% 0
Active funds 2.06% 586,502
Unclassified 0.00% 0
All registered funds 2.06% 586,502
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 43 Exempt adviser 2 Adviser 3 Bank 3 Insurer 1 Benefit plan 1 Non-US 6 Holding company 1 Unknown 17
Showing 100 of 127
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Westchester Capital Management, LLC $12,875,599 5.11% 1,258,612
D. E. Shaw & Co., Inc. $12,811,540 5.08% 1,252,350
GLAZER CAPITAL, LLC $12,384,877 4.91% 1,210,643
Linden Advisors LP $10,230,000 4.06% 1,000,000
Magnetar Financial LLC $10,230,000 4.06% 1,000,000
AQR Arbitrage LLC $9,789,035 3.88% 956,895
TWO SIGMA INVESTMENTS, LP $8,158,425 3.24% 797,500
WOLVERINE ASSET MANAGEMENT LLC $8,065,966 3.20% 788,462
Wealthspring Capital LLC $7,941,119 3.15% 776,258
LMR Partners LLP PACHU $7,740,000 3.07% 750,000
MMCAP International Inc. SPC $7,672,500 3.04% 750,000
HGC Investment Management Inc. PACHU $7,668,554 3.04% 743,077
Radcliffe Capital Management, L.P. $6,440,286 2.56% 629,549
TENOR CAPITAL MANAGEMENT Co., L.P. $6,138,000 2.44% 600,000
Karpus Management, Inc. $5,646,837 2.24% 551,988
Verition Fund Management LLC $5,376,458 2.13% 525,558
PICTON MAHONEY ASSET MANAGEMENT $5,115,000 2.03% 500,000
Alberta Investment Management Corp $5,115,000 2.03% 500,000
First Trust Capital Management L.P. $5,115,000 2.03% 500,000
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND $4,603,500 1.83% 450,000
MANGROVE PARTNERS IM, LLC $4,603,500 1.83% 450,000
OMERS ADMINISTRATION Corp $4,501,200 1.79% 440,000
Polar Asset Management Partners Inc. $4,092,000 1.62% 400,000
Mint Tower Capital Management B.V. $4,092,000 1.62% 400,000
ARISTEIA CAPITAL, L.L.C. $4,092,000 1.62% 400,000
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $4,092,000 1.62% 400,000
Jain Global LLC $3,956,309 1.57% 386,736
Shaolin Capital Management LLC $3,858,940 1.53% 377,218
TORONTO DOMINION BANK PACHU $3,739,968 1.48% 362,400
BNP PARIBAS ARBITRAGE, SA $3,565,083 1.41% 348,493
WHITEBOX ADVISORS LLC $3,069,000 1.22% 300,000
Periscope Capital Inc. $3,069,000 1.22% 300,000
MILLENNIUM MANAGEMENT LLC $2,943,171 1.17% 287,700
METEORA CAPITAL, LLC $2,792,472 1.11% 272,969
Ghisallo Capital Management LLC $2,557,500 1.01% 250,000
O'Connor Alternative Investments LLC $2,557,500 1.01% 250,000
MOORE CAPITAL MANAGEMENT, LP $2,557,500 1.01% 250,000
RIVERNORTH CAPITAL MANAGEMENT, LLC $2,555,024 1.01% 249,758
Hudson Bay Capital Management LP $2,516,580 1.00% 246,000
CSS LLC/IL $2,158,407 0.86% 210,988
MIZUHO SECURITIES USA LLC $1,877,174 0.74% 183,497
Context Capital Management, LLC $1,534,500 0.61% 150,000
TIG Advisors, LLC $1,534,500 0.61% 150,000
BERKLEY W R CORP $1,521,466 0.60% 148,726
Clear Street Group Inc. $1,430,778 0.57% 139,861
Parallax Volatility Advisers, L.P. $1,328,969 0.53% 129,909
TORONTO DOMINION BANK $1,278,750 0.51% 125,000
SONA ASSET MANAGEMENT (US) LLC $1,136,133 0.45% 111,059
Lineage Point Capital LP $1,092,615 0.43% 106,805
Dakota Wealth Management $1,064,943 0.42% 104,100
DLD Asset Management, LP $1,050,999 0.42% 102,737
JPMORGAN CHASE & CO PACHU $1,032,000 0.41% 100,000
HEIGHTS CAPITAL MANAGEMENT, INC $1,023,000 0.41% 100,000
Governors Lane LP $1,023,000 0.41% 100,000
BOOTHBAY FUND MANAGEMENT, LLC $853,089 0.34% 83,391
GRITSTONE ASSET MANAGEMENT LLC $709,184 0.28% 69,324
Logan Stone Capital, LLC $621,339 0.25% 60,737
Timelo Investment Management Inc. $613,800 0.24% 60,000
Lineage Point Capital LP PACHU $524,947 0.21% 50,867
Centiva Capital, LP $511,500 0.20% 50,000
Limestone Investment Advisors LP $491,213 0.19% 48,017
Kepos Capital LP $481,833 0.19% 47,100
PenderFund Capital Management Ltd. $390,499 0.15% 38,172
Stoic Point Capital Management LLC $345,518 0.14% 33,775
READYSTATE ASSET MANAGEMENT LP PACHU $324,997 0.13% 31,492
ABC ARBITRAGE SA $255,750 0.10% 25,000
Yakira Capital Management, Inc. PACHU $252,685 0.10% 24,485
HRT FINANCIAL LP $250,982 0.10% 24,534
L1 Global Manager Pty Ltd $249,612 0.10% 24,400
Rangeley Capital, LLC PACHU $220,280 0.09% 21,345
Clear Street Group Inc. PACHU $202,148 0.08% 19,588
Arax Advisory Partners $107,415 0.04% 10,500
Virtu Financial LLC $104,376 0.04% 10,203
DELTEC ASSET MANAGEMENT LLC $102,300 0.04% 10,000
LONGFELLOW INVESTMENT MANAGEMENT CO LLC PACHU $5,160 0.00% 500
MORGAN STANLEY $501 0.00% 49
UBS Group AG $71 0.00% 7
HRT FINANCIAL LP PACHW — — 12,600
Lepercq De Neuflize Asset Management LLC PACHW — — 266,000
MMCAP International Inc. SPC PACHW — — 375,000
Linden Advisors LP PACHW — — 375,001
Westchester Capital Management, LLC PACHW — — 424,999
Magnetar Financial LLC PACHW — — 500,000
PICTON MAHONEY ASSET MANAGEMENT PACHW — — 250,000
WHITEBOX ADVISORS LLC PACHW — — 150,000
DLD Asset Management, LP PACHW — — 50,389
AQR Arbitrage LLC PACHW — — 495,429
TENOR CAPITAL MANAGEMENT Co., L.P. PACHW — — 300,000
WOLVERINE ASSET MANAGEMENT LLC PACHW — — 97,049
Centiva Capital, LP PACHW — — 25,000
Mint Tower Capital Management B.V. PACHW — — 200,000
MILLENNIUM MANAGEMENT LLC PACHW — — 237,500
Alberta Investment Management Corp PACHW — — 250,000
Arax Advisory Partners PACHW — — 5,250
Timelo Investment Management Inc. PACHW — — 30,000
Stoic Point Capital Management LLC PACHW — — 16,887
Clear Street Group Inc. PACHW — — 294,098
BERKLEY W R CORP PACHW — — 50,000
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND PACHW — — 325,000
Context Capital Management, LLC PACHW — — 75,000

Showing the top 100 of 127 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 2040381 CUSIP G7117W107 Visit website Investor relations