Vault-13

GREENIDGE GENERATION HLDGS I VIP

CLASS A COM · Common Stock · CUSIP 39531G308

26 institutional holders -3 vs Q1 2026
1,553,3491.6m shares reported held*
$2.8mreported value*
3 new 6 added 6 reduced 6 sold out net bought ≈ $53.0k (+29.6k 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. Implied quarter-end price ≈ $1.79.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

02040Q2 23: 29Q3 23: 26Q4 23: 31Q1 24: 25Q2 24: 25Q3 24: 21Q4 24: 24Q1 25: 26Q2 25: 31Q3 25: 27Q4 25: 27Q1 26: 29Q2 26: 2626Q2 23Q1 24Q4 24Q3 25Q2 26
Numbers
QuarterHolders
Q2 202329
Q3 202326
Q4 202331
Q1 202425
Q2 202425
Q3 202421
Q4 202424
Q1 202526
Q2 202531
Q3 202527
Q4 202527
Q1 202629
Q2 202626

Buyers vs sellers

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

Bought or addedCut or sold out
20020Q3 24: 6 bought or addedQ3 24: 10 cut or sold outQ4 24: 8 bought or addedQ4 24: 8 cut or sold outQ4 24Q1 25: 12 bought or addedQ1 25: 4 cut or sold outQ2 25: 15 bought or addedQ2 25: 9 cut or sold outQ2 25Q3 25: 12 bought or addedQ3 25: 14 cut or sold outQ4 25: 14 bought or addedQ4 25: 9 cut or sold outQ4 25Q1 26: 10 bought or addedQ1 26: 9 cut or sold outQ2 26: 9 bought or addedQ2 26: 12 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 2024610
Q4 202488
Q1 2025124
Q2 2025159
Q3 20251214
Q4 2025149
Q1 2026109
Q2 2026912

Biggest buyers

VANGUARD CAPITAL MANAGEMENT LLC Added +87,686+87.7k
VANGUARD FIDUCIARY TRUST CO Added +36,234+36.2k
JANE STREET GROUP, LLC Added +22,265+22.3k
CITADEL ADVISORS LLC New +20,864+20.9k
Sowell Financial Services LLC New +19,002+19.0k
RENAISSANCE TECHNOLOGIES LLC Added +12,000+12.0k
Centiva Capital, LP Added +9,033+9.0k
NORTHERN TRUST CORP Added +1,066+1.1k
BARCLAYS PLC New +263+263

Biggest sellers

GSA CAPITAL PARTNERS LLP Reduced -63,157-63.2k
GEODE CAPITAL MANAGEMENT, LLC Reduced -52,099-52.1k
XTX Topco Ltd Sold out -37,955-38.0k
Dynamic Technology Lab Private Ltd Sold out -10,392-10.4k
UBS Group AG Reduced -6,798-6.8k
Tower Research Capital LLC (TRC) Reduced -4,669-4.7k
Itau Unibanco Holding S.A. Sold out -2,432-2.4k
CITIGROUP INC Sold out -841-841
SBI Securities Co., Ltd. Reduced -439-439
EWA, LLC Reduced -24-24

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
Atlas Capital Resources (A9) LP 13D · may seek influence -3.1 pts · filed 2026-09-14
Stated purposeItem 4 of Original Schedule 13D is hereby amended and supplemented with the following: As previously disclosed, on July 19, 2026, Atlas GREE Investment Holdco LLC, a Delaware limited liability company and an affiliate of the Reporting Persons ("Holdco"), entered into a subscription agreement (the "Subscription Agreement") with the Issuer pursuant to which Holdco agreed to purchase 2,923,976 shares (the "Shares") of Class A Common Stock, at a price per share of $1.71, for an aggregate purchase price of $5,000,000 in a private placement (the "Private Placement"). On September 3, 2026, Holdco assigned its rights to acquire the Shares in the Private Placement to Atlas Capital Resources (A9) LP ("ACR9"), Atlas Capital Resources (A9-Parallel) LP ("ACR Parallel") and Atlas Capital Resources (P)… Full filing
 20.0% -3.1 pts 7.1m≈ $12.7m 2026-09-14
Conversant Capital LLC 13D · may seek influence new · filed 2026-09-11
Stated purposeThe information reported in Item 3 of this Schedule 13D is incorporated by reference into this Item 4. As described in more detail in Item 6, below, under the caption "Board Appointment Rights," Purchaser obtained certain rights to nominate a member of Issuer's board of directors (the "Board"). Pursuant to such rights, Purchaser nominated Jacky Wu to the Board, and the Board in turn elected Mr. Wu as a member with effect from the closing of the Private Placement. Mr. Wu is not otherwise associated with the Reporting Persons and is independent of the Company's management. The Reporting Persons intend to participate in the management of the Issuer in the ordinary course of business and consistent with the extent of its investment, for example by participating in discussions with members of… Full filing
 9.8% new 3.5m≈ $6.2m 2026-09-11
Rogers George Ted III 13D · may seek influence new · filed 2026-09-17
Stated purposeThe information reported in Item 3 of this Schedule 13D is incorporated by reference into this Item 4. An aggregate of 2,939,976 shares of Class A common stock described in Item 3 of this Schedule 13D that were purchased by Mr. Rogers pursuant to the Subscription Agreement and the exercise of certain stock options by Mr. Rogers in March 2021 were acquired for investment purposes. All other securities reported herein were acquired as compensation for Mr.Rogers' service as a director of the Issuer. Mr. Rogers has been a director of the Issuer since September 13, 2021 and will continue to be involved in supervision of the Issuer in such role. Effective September 10, 2026, Mr. Rogers was appointed to the Issuer's Compensation Committee. In such capacity, Mr. Rogers may, from time to time, di… Full filing
 8.5% new 3.0m≈ $5.4m 2026-09-17
MIG REF II INFR, LLC 13D · may seek influence new · filed 2026-09-16
Stated purposeThe responses to Item 6 are incorporated by reference into this Item 4. On September 10, 2026 (the "Closing Date"), Issuer issued and sold to MIG the following securities pursuant to the Subscription Agreement, dated as of July 19, 2026 (the "Subscription Agreement"), between Issuer and MIG, for an aggregate purchase price of $15,000,000: * 2,923,976 shares of Class A Common Stock at a purchase price of $1.71 per share; * a senior secured convertible promissory note in the initial principal amount of $10,000,000 (the "MIG Convertible Note"), which, subject to obtaining the regulatory approvals required under the Subscription Agreement (the "Regulatory Approvals"), is initially convertible into 4,678,362 shares of Class A Common Stock on the terms set forth therein (the "MIG Co… Full filing
 8.2% new 2.9m≈ $5.2m 2026-09-16
BRC Group Holdings, Inc. 13G · passive investor new · filed 2026-09-11 7.1% new 2.3m≈ $4.2m 2026-09-11

Insider purchases and sales since 1 Apr 2026

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.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q4 24: 1 buyingQ4 24: 1 sellingQ1 25: 0 buyingQ1 25: 3 sellingQ1 25Q2 25: 3 buyingQ2 25: 3 sellingQ3 25: 0 buyingQ3 25: 2 sellingQ3 25Q4 25: 0 buyingQ4 25: 1 sellingQ1 26: 0 buyingQ1 26: 2 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 4 buyingQ3 26: 3 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20241$8.8k1$1.3k—
Q1 20250—3$69.5k—
Q2 20253$307.6k3$18.1k—
Q3 20250—2$8.0k—
Q4 20250—1$1.3k—
Q1 20260—2$5.0k—
Q2 20260—0——
Q3 20264$5.1m3$175.5k—
DateInsiderTradeSharesPrice ValueTheir holding
2026-09-10 Rogers George Ted III Director Bought 2,923,976 $1.71 $5.0m2.9m shares +2532%
2026-09-10 Irwin Dale President Bought 58,479 $1.71 $100.0k58.5k shares +29%
2026-09-10 Mulvihill Christian Chief Financial Officer Bought 58,479 $1.71 $100.0k58.5k shares +33%
2026-09-10 Kovler Jordan Chief Executive Officer, director Bought 58,479 $1.71 $100.0k58.5k shares +18%
2026-07-24 Kovler Jordan Chief Executive Officer, director Sold 35,721 $2.45 $87.5k35.7k shares -10%
2026-07-24 Irwin Dale President Sold 21,154 $2.45 $51.8k21.2k shares -10%
2026-07-24 Mulvihill Christian Chief Financial Officer Sold 14,738 $2.45 $36.1k14.7k shares -8%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Graham Capital Management, L.P. 0.02% of their portfolio ROWAYTON, CT 500,000500.0k $895.0k $895.0k 0.02% Unchanged
2 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 209,268209.3k $374.6k $374.6k 0.00% Added +87.7k +87,686
3 GSA CAPITAL PARTNERS LLP 0.02% of their portfolio LONDON, X0 185,730185.7k $332.0k $332.0k 0.02% Reduced -63.2k -63,157
4 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 126,147126.1k $225.8k $225.8k 0.00% Reduced -52.1k -52,099
5 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 100,300100.3k $179.5k $179.5k 0.00% Added +12.0k +12,000
6 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 81,12381.1k $145.2k $145.2k 0.00% Added +36.2k +36,234
7 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 79,05079.0k $141.5k $141.5k 0.00% Unchanged
8 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 48,27448.3k $86.4k $86.4k 0.00% Added +22.3k +22,265
9 Centiva Capital, LP 0.00% of their portfolio New York, NY 46,40646.4k $83.1k $83.1k 0.00% Added +9.0k +9,033
10 UBS Group AG 0.00% of their portfolio ZURICH, V8 43,13143.1k $77.2k $77.2k 0.00% Reduced -6.8k -6,798
11 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 30,87230.9k $55.3k $55.3k 0.00% Added +1.1k +1,066
12 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 20,86420.9k $37.3k $37.3k 0.00% New
13 Sowell Financial Services LLC 0.00% of their portfolio NORTH LITTLE ROCK, AR 19,00219.0k $34.0k $34.0k 0.00% New
14 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 17,00017.0k $30.4k $30.4k 0.00% Unchanged
15 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 13,20113.2k $23.6k $23.6k 0.00% Unchanged
16 BlackRock, Inc. 0.00% of their portfolio New York, NY 12,82512.8k $23.0k $23.0k 0.00% Unchanged
17 EWA, LLC 0.00% of their portfolio PITTSBURGH, PA 10,67310.7k $19.1k $19.1k 0.00% Reduced -24 -24
18 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 3,0403.0k $5.4k $5.4k 0.00% Unchanged
19 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,6782.7k $4.8k $4.8k 0.00% Reduced -4.7k -4,669
20 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 2,1802.2k $3.9k $3.9k 0.00% Reduced -439 -439
21 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 1,0121.0k $1.8k $1.8k 0.00% Unchanged
22 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 263263 $471 $471 0.00% New
23 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 263263 $471 $471 0.00% Unchanged
24 Ancora Advisors LLC 0.00% of their portfolio Cleveland, OH 4444 $79 $79 0.00% Unchanged
25 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 22 $3 $3 0.00% Unchanged
26 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 11 $2 $2 0.00% Unchanged