Rigetti Computing, Inc.
US ˙ NasdaqCM ˙ US76655K1034

SecurityRGTI / Rigetti Computing, Inc.
InstitutionSigma Planning Corp
Latest Disclosed Ownership12,431 shares
Latest Disclosed Value $ 174,531
Sigma Planning Corp reports 5.69% decrease in ownership of RGTI / Rigetti Computing, Inc.

On May 4, 2026 - Sigma Planning Corp filed a 13F-HR form disclosing ownership of 12,431 shares of Rigetti Computing, Inc. (US:RGTI) valued at $174,531 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 13,181 shares of Rigetti Computing, Inc.. This represents a change in shares of -5.69% during the quarter. The current value of the position is $299,525 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-04 2026-03-31 13F RIGETTI COMPUTING COMMON STOCK 76655K103 12,431 -750 -5.69 175 -39.37 0.0048
2026-01-30 2025-12-31 13F RIGETTI COMPUTING COMMON STOCK 76655K103 13,181 1,381 11.70 288 -18.23 0.0079
2025-11-10 2025-09-30 13F RIGETTI COMPUTING COMMON STOCK 76655K103 11,800 -2,043 -14.76 352 114.02 0.0100
2025-08-05 2025-06-30 13F RIGETTI COMPUTING COMMON STOCK 76655K103 13,843 950 7.37 164 60.78 0.0049
2025-05-02 2025-03-31 13F RIGETTI COMPUTING COMMON STOCK 76655K103 12,893 -5,361 -29.37 102 -63.31 0.0033
2025-02-03 2024-12-31 13F RIGETTI COMPUTING COMMON STOCK 76655K103 18,254 -492 -2.62 279 1,885.71 0.0087
2024-11-04 2024-09-30 13F RIGETTI COMPUTING COMMON STOCK 76655K103 18,746 1,330 7.64 15 -22.22 0.0004
2024-08-06 2024-06-30 13F RIGETTI COMPUTING COMMON STOCK 76655K103 17,416 0 0.00 19 -30.77 0.0006
2024-05-02 2024-03-31 13F RIGETTI COMPUTING COMMON STOCK 76655K103 17,416 17,416 27 0.0008
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.