Oklo Inc.
US ˙ NYSE ˙ US02156V1098

SecurityOKLO / Oklo Inc.
InstitutionWalleye Capital LLC
Latest Disclosed Ownership22,283 shares
Latest Disclosed Value $ 1,105,014
Walleye Capital LLC ownership in OKLO / Oklo Inc.

On May 13, 2026 - Walleye Capital LLC filed a 13F-HR/A form disclosing ownership of 22,283 shares of Oklo Inc. (US:OKLO) valued at $1,105,014 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 20,543 shares of Oklo Inc.. This represents a change in shares of 8.47% during the quarter. The current value of the position is $1,294,419 USD.

Walleye Capital LLC has a history of taking positions in derivatives of the underlying security (OKLO) in the form of stock options. The firm currently holds call options representing 86,200 of underlying shares valued at $4,274,658 USD and put options representing 42,000 of underlying shares valued at $2,082,780 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

OKLO / Oklo Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F/A-1 OKLO COM CL A 02156V109 22,283 1,740 8.47 1,105 -25.03 0.0046
2026-05-08 2026-03-31 13F OKLO COM CL A 02156V109 22,283 1,740 1,105 0.0046
2026-02-13 2025-12-31 13F OKLO COM CL A 02156V109 20,543 1,659 8.79 1,474 -30.08 0.0045
2025-11-14 2025-09-30 13F OKLO COM CL A 02156V109 18,884 -22,806 -54.70 2,108 -9.68 0.0079
2025-08-13 2025-06-30 13F OKLO COM CL A 02156V109 41,690 16,314 64.29 2,334 325.91 0.0091
2025-05-14 2025-03-31 13F OKLO COM CL A 02156V109 25,376 -27,594 -52.09 549 -51.25 0.0025
2025-02-13 2024-12-31 13F OKLO COM CL A 02156V109 52,970 52,970 1,125 0.0027
2024-08-14 2024-06-30 13F ALTC ACQUISITION COM CL A 02156V109 0 -204,516 -100.00 0 -100.00
2024-05-15 2024-03-31 13F ALTC ACQUISITION COM CL A 02156V109 204,516 12,836 6.70 2,336 15.37 0.0042
2024-02-14 2023-12-31 13F ALTC ACQUISITION COM CL A 02156V109 191,680 139,456 267.03 2,024 274.81 0.0043
2023-11-21 2023-09-30 13F/A-1 ALTC ACQUISITION COM CL A 02156V109 52,224 23,296 80.53 541 79.40 0.0014
2023-11-14 2023-09-30 13F ALTC ACQUISITION COM CL A 02156V109 52,224 23,296 541 0.0014
2023-08-14 2023-06-30 13F ALTC ACQUISITION COM CL A 02156V109 28,928 16,128 126.00 302 133.33 0.0011
2023-05-15 2023-03-31 13F ALTC ACQUISITION COM CL A 02156V109 12,800 0 0.00 130 2.38 0.0019
2023-02-14 2022-12-31 13F ALTC ACQUISITION COM CL A 02156V109 12,800 0 0.00 127 0.80 0.0023
2022-11-14 2022-09-30 13F ALTC ACQUISITION COM CL A 02156V109 12,800 0 0.00 125 0.81 0.0024
2022-08-19 2022-06-30 13F/A-1 ALTC ACQUISITION COM CL A 02156V109 12,800 0 0.00 124 -0.80 0.0034
2022-08-08 2022-06-30 13F ALTC ACQUISITION COM CL A 02156V109 12,800 0 124 0.0034
2022-05-27 2022-03-31 13F/A-01 ALTC ACQUISITION COM CL A 02156V109 12,800 0 0.00 125 -0.79 0.0033
2022-05-16 2022-03-31 13F ALTC ACQUISITION COM CL A 02156V109 12,800 0 125 0.0025
2022-05-27 2021-12-31 13F/A-01 ALTC ACQUISITION COM CL A 02156V109 12,800 0 0.00 126 0.00 0.0039
2022-03-03 2021-12-31 13F ALTC ACQUISITION COM CL A 02156V109 12,800 0 126 0.0031
2021-11-15 2021-09-30 13F ALTC ACQUISITION COM CL A 02156V109 12,800 12,800 126 0.0036
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A OKLO COM CL A Call 86,200 59.63 4,275 10.30 n/a n/a n/a
2026-05-08 2026-03-31 13F OKLO COM CL A Call 86,200 4,275 n/a n/a n/a
2026-02-13 2025-12-31 13F OKLO COM CL A Call 54,000 -13.88 3,875 -44.63 n/a n/a n/a
2025-11-14 2025-09-30 13F OKLO COM CL A Call 62,700 -49.52 6,999 0.66 n/a n/a n/a
2025-08-13 2025-06-30 13F OKLO COM CL A Call 124,200 901.61 6,954 2,494.40 n/a n/a n/a
2025-05-14 2025-03-31 13F OKLO COM CL A Call 12,400 -8.82 268 -6.94 n/a n/a n/a
2025-02-13 2024-12-31 13F OKLO COM CL A Call 13,600 289 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F/A OKLO COM CL A Put 42,000 -25.27 2,083 -48.36 n/a n/a n/a
2026-05-08 2026-03-31 13F OKLO COM CL A Put 42,000 2,083 n/a n/a n/a
2026-02-13 2025-12-31 13F OKLO COM CL A Put 56,200 -49.37 4,033 -67.46 n/a n/a n/a
2025-11-14 2025-09-30 13F OKLO COM CL A Put 111,000 -31.61 12,391 36.35 n/a n/a n/a
2025-08-13 2025-06-30 13F OKLO COM CL A Put 162,300 266.37 9,087 848.54 n/a n/a n/a
2025-05-14 2025-03-31 13F OKLO COM CL A Put 44,300 3.99 958 5.97 n/a n/a n/a
2025-02-13 2024-12-31 13F OKLO COM CL A Put 42,600 904 n/a n/a n/a
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.