BACKBLAZE INC-A (BLZE) Top Institutional Shareholders
BACKBLAZE INC-A (BLZE) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $93.02M in BLZE holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of BLZE tracked by InsiderSet, reporting ownership valued at approximately $12.71M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $30.47M, representing an estimated gain of +139.71% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 60% of the total disclosed BLZE value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Pillsbury Lake Capital Llc, and several other long-term asset managers with concentrated positions in BACKBLAZE INC-A (BLZE).
This page ranks the largest institutional BLZE shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
134
Total Reported Value
$93.02M
Largest Holder
Blackrock, Inc.
Largest Position
$12.71M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
167
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,683,899 | $12,709,452 | $30,465,845 | +$17,756,393 | +139.71% | |
| Vanguard Capital Management Llc | 0.00% | 2,344,447 | $8,088,342 | $19,388,577 | +$11,300,235 | +139.71% | |
| Pillsbury Lake Capital Llc | 3.07% | 1,961,283 | $6,766,426 | $16,219,810 | +$9,453,384 | +139.71% | |
| Whetstone Capital Advisors, Llc | 1.97% | 1,520,055 | $5,244,190 | $12,570,855 | +$7,326,665 | +139.71% | |
| Awm Investment Company, Inc. | 0.53% | 1,400,166 | $4,830,573 | $11,579,373 | +$6,748,800 | +139.71% | |
| Geode Capital Management, Llc | 0.00% | 1,345,193 | $4,642,248 | $11,124,746 | +$6,482,498 | +139.64% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 1,172,657 | $4,045,667 | $9,697,873 | +$5,652,206 | +139.71% |
| State Street Corp | 0.00% | 1,112,650 | $3,838,643 | $9,201,616 | +$5,362,973 | +139.71% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | 833,272 | $2,874,788 | $6,891,159 | +$4,016,371 | +139.71% | |
| D. E. Shaw & Co., Inc. | 0.00% | 739,033 | $2,549,664 | $6,111,803 | +$3,562,139 | +139.71% | |
| Vanguard Portfolio Management Llc | 0.00% | 707,887 | $2,442,210 | $5,854,225 | +$3,412,015 | +139.71% | |
| Aqr Capital Management Llc | 0.00% | 663,511 | $2,289,113 | $5,487,236 | +$3,198,123 | +139.71% | |
| Point72 Asset Management, L.P. | 0.00% | 540,594 | $1,865,049 | $4,470,712 | +$2,605,663 | +139.71% | |
| Dimensional Fund Advisors Lp | 0.00% | 517,586 | $1,785,106 | $4,280,436 | +$2,495,330 | +139.79% | |
| Prelude Capital Management, Llc | 0.13% | 474,006 | $1,635,321 | $3,920,030 | +$2,284,709 | +139.71% | |
| Northern Trust Corp | 0.00% | 433,408 | $1,495,258 | $3,584,284 | +$2,089,026 | +139.71% | |
| Qube Research & Technologies Ltd | 0.00% | 432,351 | $1,491,611 | $3,575,543 | +$2,083,932 | +139.71% | |
| Vanguard Fiduciary Trust Co | 0.00% | 388,594 | $1,340,649 | $3,213,672 | +$1,873,023 | +139.71% | |
| P.A.W. Capital Corp | 3.38% | 360,000 | $1,242,000 | $2,977,200 | +$1,735,200 | +139.71% | |
| Boothbay Fund Management, Llc | 0.03% | 356,663 | $1,230,487 | $2,949,603 | +$1,719,116 | +139.71% | |
| Perkins Capital Management Inc | 1.10% | 339,025 | $1,169,636 | $2,803,737 | +$1,634,101 | +139.71% | |
| Goldman Sachs Group Inc | 0.00% | 317,685 | $1,096,013 | $2,627,255 | +$1,531,242 | +139.71% | |
| Citadel Advisors Llc | 0.00% | 304,905 | $1,051,922 | $2,521,564 | +$1,469,642 | +139.71% | |
| Ubs Group Ag | 0.00% | 304,081 | $1,049,079 | $2,514,750 | +$1,465,671 | +139.71% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 300,504 | $1,036,739 | $2,485,168 | +$1,448,429 | +139.71% | |
| Nano Cap New Millennium Growth Fund L P | 0.95% | 295,000 | $1,017,750 | $2,439,650 | +$1,421,900 | +139.71% | |
| Castleknight Management Lp | 0.05% | 293,300 | $1,011,885 | $2,425,591 | +$1,413,706 | +139.71% | |
| Tudor Investment Corp Et Al | 0.00% | 221,379 | $763,758 | $1,830,804 | +$1,067,046 | +139.71% | |
| Bank Of New York Mellon Corp | 0.00% | 180,515 | $622,776 | $1,492,859 | +$870,083 | +139.71% | |
| Ameriprise Financial Inc | 0.00% | 177,883 | $613,696 | $1,471,092 | +$857,396 | +139.71% | |
| Jacobs Levy Equity Management, Inc | 0.00% | 174,576 | $602,287 | $1,443,744 | +$841,457 | +139.71% | |
| Lazard Asset Management Llc | 0.00% | 160,333 | $553,149 | $1,325,954 | +$772,805 | +139.71% | |
| Numerai Gp Llc | 0.06% | 160,298 | $553,028 | $1,325,664 | +$772,636 | +139.71% | |
| Morgan Stanley | 0.00% | 158,923 | $548,284 | $1,314,293 | +$766,009 | +139.71% | |
| Cerity Partners Llc | 0.00% | 145,975 | $503,614 | $1,207,213 | +$703,599 | +139.71% | |
| Xtx Topco Ltd | 0.01% | 126,355 | $435,925 | $1,044,956 | +$609,031 | +139.71% | |
| Millennium Management Llc | 0.00% | 123,351 | $425,561 | $1,020,113 | +$594,552 | +139.71% | |
| Charles Schwab Investment Management Inc | 0.00% | 121,268 | $418,375 | $1,002,886 | +$584,511 | +139.71% | |
| Barclays Plc | 0.00% | 98,380 | $339,411 | $813,603 | +$474,192 | +139.71% | |
| Susquehanna International Group, Llp | 0.00% | 96,585 | $333,218 | $798,758 | +$465,540 | +139.71% | |
| Ieq Capital, Llc | 0.00% | 92,929 | $320,606 | $768,523 | +$447,917 | +139.71% | |
| Bridgeway Capital Management, Llc | 0.01% | 85,800 | $296,010 | $709,566 | +$413,556 | +139.71% | |
| Jane Street Group, Llc | 0.00% | 75,964 | $262,076 | $628,222 | +$366,146 | +139.71% | |
| Penbrook Management Llc | 0.19% | 72,150 | $248,917 | $596,681 | +$347,764 | +139.71% | |
| Nuveen, Llc | 0.00% | 71,143 | $245,443 | $588,353 | +$342,910 | +139.71% | |
| Russell Investments Group, Ltd. | 0.00% | 68,006 | $234,619 | $562,410 | +$327,791 | +139.71% | |
| Rhumbline Advisers | 0.00% | 66,927 | $230,889 | $553,486 | +$322,597 | +139.72% | |
| Marshall Wace, Llp | 0.00% | 61,555 | $212,365 | $509,060 | +$296,695 | +139.71% | |
| Deutsche Bank Ag\ | 0.00% | 58,734 | $202,632 | $485,730 | +$283,098 | +139.71% | |
| Jump Financial, Llc | 0.00% | 58,586 | $202,122 | $484,506 | +$282,384 | +139.71% |
Frequently asked questions about BLZE
Who owns the most BLZE stock?
The largest holders of BLZE are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for BACKBLAZE INC-A (BLZE).
Is BLZE widely held by superinvestors?
Many widely followed stocks like BLZE appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly BLZE is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.