Vault-13

OKLO INC OKLO

COM CL A · Common Stock · CUSIP 02156V109 · ISIN US02156V1098

American nuclear startup company

94 institutional holders +39 vs Q1 2024
40,308,64840.3m shares reported held*
33.0% of all shares outstanding*
$341.4mreported value*
63 new 14 added 14 reduced 24 sold out net bought ≈ $130.4m (+15.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 122.1m as of 2024-08-13, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $8.47. Options: 11 managers hold calls ($22.1m notional), 11 hold puts ($32.8m).

Trends to Q2 2024

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 78Q4 22: 74Q1 23: 73Q2 23: 76Q3 23: 66Q4 23: 38Q1 24: 55Q2 24: 9494Q3 22Q1 23Q3 23Q1 24Q2 24
Numbers
QuarterHolders
Q3 202278
Q4 202274
Q1 202373
Q2 202376
Q3 202366
Q4 202338
Q1 202455
Q2 202494

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q4 22: 19 bought or addedQ4 22: 20 cut or sold outQ4 22Q1 23: 25 bought or addedQ1 23: 16 cut or sold outQ2 23: 16 bought or addedQ2 23: 39 cut or sold outQ2 23Q3 23: 31 bought or addedQ3 23: 39 cut or sold outQ4 23: 14 bought or addedQ4 23: 50 cut or sold outQ4 23Q1 24: 30 bought or addedQ1 24: 17 cut or sold outQ2 24: 77 bought or addedQ2 24: 38 cut or sold outQ2 24
Numbers
QuarterBought or addedCut or sold out
Q4 20221920
Q1 20232516
Q2 20231639
Q3 20233139
Q4 20231450
Q1 20243017
Q2 20247738

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$10m$20m$30m$40mQ3 23 calls: $310.0kQ3 23 puts: $129.4kQ3 23P/C 0.42Q4 23 calls: $0Q4 23 puts: $8.4kQ4 23P/C —Q1 24 calls: $1.7mQ1 24 puts: $177.0kQ1 24P/C 0.10Q2 24 calls: $22.1mQ2 24 puts: $32.8mQ2 24P/C 1.49
Numbers
QuarterCallsPutsP/C
Q3 2023$310.0k$129.4k0.42
Q4 2023$0$8.4k—
Q1 2024$1.7m$177.0k0.10
Q2 2024$22.1m$32.8m1.49

Biggest buyers

Data Collective IV GP, LLC New +6,920,804+6.9m
HITE Hedge Asset Management LLC Added +3,647,353+3.6m
Encompass Capital Advisors LLC Added +2,882,640+2.9m
VANGUARD GROUP INC New +2,202,901+2.2m
Balyasny Asset Management L.P. New +1,387,667+1.4m
BlackRock Inc. New +1,328,436+1.3m
Alyeska Investment Group, L.P. New +1,010,350+1.0m
Valiant Capital Management, L.P. New +914,195+914.2k
GOLDMAN SACHS GROUP INC New +813,661+813.7k
Gratus Capital, LLC New +739,872+739.9k

Biggest sellers

Empyrean Capital Partners, LP Sold out -3,056,992-3.1m
Meteora Capital, LLC Sold out -1,853,981-1.9m
Fort Baker Capital Management LP Sold out -1,486,979-1.5m
JPMORGAN CHASE & CO Reduced -1,329,210-1.3m
Sculptor Capital LP Sold out -857,122-857.1k
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Sold out -591,412-591.4k
MILLENNIUM MANAGEMENT LLC Reduced -557,479-557.5k
COWEN AND COMPANY, LLC Reduced -530,154-530.2k
Magnetar Financial LLC Reduced -513,556-513.6k
MOORE CAPITAL MANAGEMENT, LP Reduced -400,000-400.0k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $5.4m634.4k shares
Arosa Capital Management LP New $4.2m500.0k shares
JANE STREET GROUP, LLC New $3.8m444.5k shares
SIMPLEX TRADING, LLC Added $3.3m388.0k shares
IMC-Chicago, LLC New $1.9m219.1k shares
CITADEL ADVISORS LLC New $1.5m182.0k shares
GROUP ONE TRADING LLC Added $1.1m129.7k shares
Balyasny Asset Management L.P. New $889.4k105.0k shares
ExodusPoint Capital Management, LP New $35.0k4.2k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $10.5m1.2m shares
GROUP ONE TRADING LLC Added $4.4m515.5k shares
CITADEL ADVISORS LLC New $4.1m480.4k shares
Caption Management, LLC New $3.4m400.0k shares
SIMPLEX TRADING, LLC New $3.0m353.7k shares
GOLDMAN SACHS GROUP INC New $2.6m302.9k shares
JANE STREET GROUP, LLC New $2.2m254.8k shares
Squarepoint Ops LLC New $1.4m170.8k shares
IMC-Chicago, LLC New $890.2k105.1k shares
Flow State Investments, L.P. New $421.0k49.7k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
DeWitte Jacob 13D · may seek influence -1.1 pts · filed 2026-07-06 11.1% -1.1 pts 20.6m≈ $1.1bn 2026-07-06

Fell to 5% or below in the last year: BlackRock, Inc. (3.6%, 2026-07-29), VANGUARD GROUP INC (0.0%, 2026-03-27)

Insider purchases and sales in Q2 2024

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q2 2024.

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Data Collective IV GP, LLC 41.08% of their portfolio PALO ALTO, CA 6,920,8046.9m $58.6m $58.6m 41.08% New
2 Encompass Capital Advisors LLC 2.62% of their portfolio New York, NY 5,716,2415.7m $48.4m $48.4m 2.62% Added +2.9m +2,882,640
3 HITE Hedge Asset Management LLC 3.25% of their portfolio BRAINTREE, MA 3,920,4193.9m $33.2m $33.2m 3.25% Added +3.6m +3,647,353
4 TIGER GLOBAL MANAGEMENT LLC 0.12% of their portfolio New York, NY 3,056,9923.1m $25.9m $25.9m 0.12% Unchanged
5 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 2,202,9012.2m $18.7m $18.7m 0.00% New
6 Balyasny Asset Management L.P. 0.03% of their portfolio Chicago, IL 1,387,6671.4m $11.8m $11.8m 0.03% New
7 BlackRock Inc. 0.00% of their portfolio New York, NY 1,328,4361.3m $11.3m $11.3m 0.00% New
8 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 1,285,7211.3m $10.9m $10.9m 0.01% Reduced -557.5k -557,479
9 Alyeska Investment Group, L.P. 0.05% of their portfolio CHICAGO, IL 1,010,3501.0m $8.6m $8.6m 0.05% New
10 Valiant Capital Management, L.P. 0.91% of their portfolio San Francisco, CA 914,195914.2k $7.7m $7.7m 0.91% New
11 MMCAP International Inc. SPC 1.00% of their portfolio GRAND CAYMAN, E9 851,537851.5k $7.2m $7.2m 1.00% Added +116.9k +116,868
12 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 813,661813.7k $6.9m $6.9m 0.00% New
13 D. E. Shaw & Co., Inc. 0.01% of their portfolio New York, NY 774,478774.5k $6.6m $6.6m 0.01% Unchanged
14 Gratus Capital, LLC 0.25% of their portfolio ATLANTA, GA 739,872739.9k $6.3m $6.3m 0.25% New
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 712,767712.8k $6.0m $6.0m 0.00% New
16 Corient Private Wealth LP 0.01% of their portfolio MIAMI, FL 634,754634.8k $5.4m $5.4m 0.01% New
17 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 544,076544.1k $4.6m $4.6m 0.00% Reduced -1.3m -1,329,210
18 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 523,027523.0k $4.4m $4.4m 0.00% New
19 READYSTATE ASSET MANAGEMENT LP 0.20% of their portfolio CHICAGO, IL 502,190502.2k $4.3m $4.3m 0.20% Reduced -74.8k -74,810
20 Hel Ved Capital Management Ltd 1.34% of their portfolio CENTRAL, K3 455,000455.0k $3.9m $3.9m 1.34% New
21 Arosa Capital Management LP 2.87% of their portfolio MIAMI BEACH, FL 438,000438.0k $3.7m $3.7m 2.87% New
22 Aventail Capital Group, LP 0.26% of their portfolio NEW YORK, NY 437,491437.5k $3.7m $3.7m 0.26% New
23 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 401,320401.3k $3.4m $3.4m 0.00% New
24 Point72 Asset Management, L.P. 0.01% of their portfolio STAMFORD, CT 382,104382.1k $3.2m $3.2m 0.01% New
25 SCOPUS ASSET MANAGEMENT, L.P. 0.10% of their portfolio NEW YORK, NY 375,000375.0k $3.2m $3.2m 0.10% New
26 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 323,478323.5k $2.7m $2.7m 0.00% Reduced -18.6k -18,603
27 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 321,928321.9k $2.7m $2.7m 0.00% Added +263.8k +263,828
28 CARDIFF PARK ADVISORS, LLC 0.26% of their portfolio SAN MARCOS, CA 315,133315.1k $2.7m $2.7m 0.26% New
29 SkyView Investment Advisors, LLC 0.39% of their portfolio SHREWSBURY, NJ 261,424261.4k $2.2m $2.2m 0.39% Reduced -602 -602
30 DISCOVERY CAPITAL MANAGEMENT, LLC / CT 0.24% of their portfolio SOUTH NORWALK, CT 216,400216.4k $1.8m $1.8m 0.24% New
31 Alight Capital Management LP 0.45% of their portfolio New York, NY 213,962214.0k $1.8m $1.8m 0.45% New
32 FRED ALGER MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 152,591152.6k $1.3m $1.3m 0.01% New
33 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 147,723147.7k $1.3m $1.3m 0.00% Added +122.4k +122,378
34 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 145,777145.8k $1.2m $1.2m 0.00% New
35 NOMURA HOLDINGS INC 0.01% of their portfolio TOKYO, M0 137,244137.2k $1.2m $1.2m 0.01% New
36 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 124,763124.8k $1.1m $1.1m 0.00% New
37 Joule Financial, LLC 0.35% of their portfolio Lexington, KY 117,946117.9k $999.0k $999.0k 0.35% Added +45.3k +45,260
38 COWEN AND COMPANY, LLC 0.02% of their portfolio NEW YORK, NY 105,000105.0k $889.4k $889.4k 0.02% Reduced -530.2k -530,154
39 Mountain Lake Investment Management LLC 0.89% of their portfolio SAN FRANCISCO, CA 100,551100.6k $851.7k $851.7k 0.89% New
40 MOORE CAPITAL MANAGEMENT, LP 0.02% of their portfolio NEW YORK, NY 100,000100.0k $847.0k $847.0k 0.02% Reduced -400.0k -400,000
41 Caption Management, LLC 0.08% of their portfolio OKLAHOMA CITY, OK 85,97186.0k $728.2k $728.2k 0.08% New
42 BOKF, NA 0.01% of their portfolio TULSA, OK 85,00085.0k $720.0k $720.0k 0.01% New
43 Magnetar Financial LLC 0.01% of their portfolio EVANSTON, IL 75,00075.0k $635.2k $635.2k 0.01% Reduced -513.6k -513,556
44 Kestra Advisory Services, LLC 0.00% of their portfolio AUSTIN, TX 67,28867.3k $569.9k $569.9k 0.00% New
45 GROUP ONE TRADING LLC 0.02% of their portfolio CHICAGO, IL 66,52366.5k $563.5k $563.5k 0.02% Reduced -11.9k -11,912
46 Mariner, LLC 0.00% of their portfolio Overland Park, KS 57,54457.5k $487.4k $487.4k 0.00% New
47 IMC-Chicago, LLC 0.01% of their portfolio CHICAGO, IL 55,18955.2k $467.5k $467.5k 0.01% New
48 Cerity Partners LLC 0.00% of their portfolio NEW YORK, NY 51,31551.3k $434.6k $434.6k 0.00% New
49 Cinctive Capital Management LP 0.02% of their portfolio New York, NY 46,10046.1k $390.5k $390.5k 0.02% Reduced -7.4k -7,414
50 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 46,00146.0k $389.6k $389.6k 0.00% New
51 SIMPLEX TRADING, LLC 0.01% of their portfolio CHICAGO, IL 39,89239.9k $337.0k $337.0k 0.01% Added +17.6k +17,595
52 Flow State Investments, L.P. 0.11% of their portfolio CHICAGO, IL 39,55739.6k $335.0k $335.0k 0.11% Reduced -353.3k -353,303
53 Virtu Financial LLC 0.02% of their portfolio New York, NY 39,47039.5k $334.0k $334.0k 0.02% Added +25.2k +25,161
54 Atom Investors LP 0.03% of their portfolio AUSTIN, TX 36,52536.5k $309.4k $309.4k 0.03% New
55 EXCHANGE TRADED CONCEPTS, LLC 0.01% of their portfolio Oklahoma City, OK 35,60035.6k $301.5k $301.5k 0.01% Added +29.4k +29,370
56 Secure Asset Management, LLC 0.05% of their portfolio Troy, MI 34,22434.2k $289.9k $289.9k 0.05% New
57 AlphaQuest LLC 0.04% of their portfolio New York, NY 31,52731.5k $267.0k $267.0k 0.04% New
58 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 27,43127.4k $232.3k $232.3k 0.00% Added +12.0k +12,028
59 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 26,99527.0k $229.0k $229.0k 0.00% New
60 Carlson Capital, L.P. 0.03% of their portfolio DALLAS, TX 25,00025.0k $211.8k $211.8k 0.03% New
61 LEVEL FOUR ADVISORY SERVICES, LLC 0.01% of their portfolio DALLAS, TX 20,30020.3k $171.9k $171.9k 0.01% New
62 PORTLAND INVESTMENT COUNSEL INC. 0.06% of their portfolio BURLINGTON, A6 20,00020.0k $169.4k $169.4k 0.06% New
63 MYDA Advisors LLC 0.05% of their portfolio WOODMERE, NY 20,00020.0k $169.4k $169.4k 0.05% New
64 Sepio Capital, LP 0.01% of their portfolio Salt Lake City, UT 18,37218.4k $156.0k $156.0k 0.01% New
65 Shay Capital LLC 0.04% of their portfolio NEW YORK, NY 18,34618.3k $155.4k $155.4k 0.04% Reduced -15.6k -15,589
66 Advisory Services Network, LLC 0.00% of their portfolio ATLANTA, GA 16,47516.5k $139.5k $139.5k 0.00% New
67 MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio DENVER, CO 16,20416.2k $137.2k $137.2k 0.00% New
68 GeoWealth Management, LLC 0.00% of their portfolio CHICAGO, IL 12,85012.8k $108.8k $108.8k 0.00% New
69 NEXPOINT ASSET MANAGEMENT, L.P. 0.01% of their portfolio Dallas, TX 12,60012.6k $106.7k $106.7k 0.01% New
70 PEAPACK GLADSTONE FINANCIAL CORP 0.00% of their portfolio BEDMINSTER, NJ 12,31012.3k $104.0k $104.0k 0.00% New
71 Black Swift Group, LLC 0.02% of their portfolio BOULDER, CO 10,00010.0k $84.7k $84.7k 0.02% New
72 Strategic Blueprint, LLC 0.01% of their portfolio ATLANTA, GA 10,00010.0k $84.7k $84.7k 0.01% New
73 FNY Investment Advisers, LLC 0.05% of their portfolio NEW YORK, NY 9,5609.6k $80.0k $80.0k 0.05% Reduced -77.2k -77,240
74 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 6,5006.5k $55.1k $55.1k 0.00% Reduced -93.5k -93,500
75 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 4,0964.1k $34.0k $34.0k 0.00% Added +3.6k +3,596
76 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 3,4253.4k $28.1k $28.1k 0.00% Added +3.0k +3,025
77 Kozak & Associates, Inc. 0.00% of their portfolio HIGHLANDS RANCH, CO 1,7001.7k $14.0k $14.0k 0.00% Added +700 +700
78 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,4901.5k $12.6k $12.6k 0.00% Added +1.5k +1,469
79 Stone House Investment Management, LLC 0.00% of their portfolio TUNKHANNOCK, PA 1,4001.4k $11.9k $11.9k 0.00% New
80 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 1,3651.4k $11.6k $11.6k 0.00% New
81 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 1,3301.3k $11.3k $11.3k 0.00% New
82 NATIXIS 0.00% of their portfolio PARIS, I0 1,3001.3k $11.0k $11.0k 0.00% New
83 ADAR1 Capital Management, LLC 0.00% of their portfolio AUSTIN, TX 1,0001.0k $8.5k $8.5k 0.00% New
84 Caitlin John, LLC 0.00% of their portfolio BRIGHTON, MI 550550 $4.7k $4.7k 0.00% New
85 IQ EQ FUND MANAGEMENT (SINGAPORE) PRIVATE Ltd 0.00% of their portfolio SINGAPORE, U0 518518 $4.4k $4.4k 0.00% New
86 CIBC Private Wealth Group LLC 0.00% of their portfolio ATLANTA, GA 496496 $3.7k $3.7k 0.00% New
87 Larson Financial Group LLC 0.00% of their portfolio ST LOUIS, MO 400400 $3.4k $3.4k 0.00% New
88 HARBOUR INVESTMENTS, INC. 0.00% of their portfolio MADISON, WI 300300 $2.5k $2.5k 0.00% New
89 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 295295 $2.5k $2.5k 0.00% New
90 Cypress Capital, LLC 0.00% of their portfolio FRANKLIN, TN 200200 $1.7k $1.7k 0.00% New
91 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 100100 $847 $847 0.00% New
92 Sound Income Strategies, LLC 0.00% of their portfolio FT LAUDERDALE, FL 6060 $508 $508 0.00% New
93 Sanctuary Wealth Management, L.L.C. 0.00% of their portfolio POCATELLO, ID 3131 $263 $263 0.00% New
94 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged