AltShares Trust - AltShares Merger Arbitrage ETF
US ˙ ARCA ˙ US02210T1088

SecurityARB / AltShares Trust - AltShares Merger Arbitrage ETF
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership58,867 shares
Latest Disclosed Value $ 1,725,964
Advisor Group Holdings, Inc. reports 1.79% increase in ownership of ARB / AltShares Trust - AltShares Merger Arbitrage ETF

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 58,867 shares of AltShares Trust - AltShares Merger Arbitrage ETF (US:ARB) valued at $1,725,980 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 57,831 shares of AltShares Trust - AltShares Merger Arbitrage ETF. This represents a change in shares of 1.79% during the quarter. The current value of the position is $1,754,237 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 58,867 1,036 1.79 1,726 2.62 0.0015
2026-02-17 2025-12-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 57,831 -3,970 -6.42 1,681 -6.14 0.0025
2025-11-14 2025-09-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 61,801 -137 -0.22 1,791 1.53 0.0025
2025-09-04 2025-06-30 13F/A-1 ALTSHARES TRUST MERGER ARBITRAGE 02210T108 61,938 52,243 538.87 1,765 546.15 0.0031
2025-08-13 2025-06-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 60,965 51,270 1,729 0.0020
2025-05-12 2025-03-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 9,695 -52,496 -84.41 274 -84.05 0.0006
2025-06-06 2024-12-31 13F/A-1 ALTSHARES TRUST MERGER ARBITRAGE 02210T108 62,191 255 0.41 1,712 -0.23 0.0038
2025-02-07 2024-12-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 58,273 -3,663 1,605 0.0041
2024-11-13 2024-09-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 61,936 1,510 2.50 1,717 5.54 0.0039
2024-08-13 2024-06-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 60,426 33,126 121.34 1,627 119.43 0.0038
2024-05-10 2024-03-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 27,300 11,635 74.27 742 76.85 0.0017
2024-02-12 2023-12-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 15,665 -24,566 -61.06 419 -60.32 0.0007
2023-11-13 2023-09-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 40,231 -4,238 -9.53 1,056 -6.71 0.0016
2023-08-21 2023-06-30 13F/A-1 ALTSHARES TRUST MERGER ARBITRAGE 02210T108 44,469 -966 -2.13 1,133 -1.74 0.0020
2023-08-10 2023-06-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 44,469 -966 1,133 0.0003
2023-05-12 2023-03-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 45,435 -26,830 -37.13 1,152 -38.10 0.0022
2023-02-10 2022-12-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 72,265 -3,602 -4.75 1,861 -7.92 0.0038
2022-11-14 2022-09-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 75,867 -4,072 -5.09 2,021 -3.12 0.0046
2022-08-10 2022-06-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 79,939 1,278 1.62 2,086 0.00 0.0046
2022-05-04 2022-03-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 78,661 78,661 2,086 0.0040
2021-05-13 2021-03-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 0 -3,585 -100.00 0 -100.00
2021-02-10 2020-12-31 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 3,585 505 16.40 91 16.67 0.0002
2020-11-12 2020-09-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 3,080 2,280 285.00 78 290.00 0.0002
2020-08-14 2020-06-30 13F ALTSHARES TRUST MERGER ARBITRAGE 02210T108 800 800 20 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.