BACKBLAZE INC-A (BLZE) Institutional Ownership Changes & 13F Activity

BACKBLAZE INC-A (BLZE). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Driehaus Capital Management Llc, D. E. Shaw & Co., Inc., Next Century Growth Investors Llc, Pillsbury Lake Capital Llc, and Aqr Capital Management Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
State Street CorpBuy+104,348+9.4%1,216,998$19.30MQ2 2026Sep 22, 2026
Manufacturers Life Insurance Company, TheSell-792-4.8%15,617$247.69KQ2 2026Sep 09, 2026
M&T Bank CorpSell-10,479-100.0%0$0.00Q2 2026Sep 04, 2026
California State Teachers Retirement SystemSell-2,196-73.6%789$12.51KQ2 2026Aug 24, 2026
Mercer Global Advisors IncBuy+12,614+81.1%28,167$446.73KQ2 2026Aug 19, 2026
Driehaus Capital Management LlcBuy+2,688,0442,688,044$42.63MQ2 2026Aug 14, 2026
D. E. Shaw & Co., Inc.Sell-688,883-93.2%50,150$795.38KQ2 2026Aug 14, 2026
Next Century Growth Investors LlcBuy+687,498687,498$10.90MQ2 2026Aug 14, 2026
Pillsbury Lake Capital LlcSell-621,446-31.7%1,339,837$21.25MQ2 2026Aug 14, 2026
Aqr Capital Management LlcBuy+388,336+58.5%1,051,847$16.68MQ2 2026Aug 14, 2026
Millennium Management LlcBuy+372,084+301.6%495,435$7.86MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+333,849+77.2%766,200$12.15MQ2 2026Aug 14, 2026
Nano Cap New Millennium Growth Fund L PSell-245,000-83.1%50,000$793.00KQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+233,542+1446.6%249,686$3.96MQ2 2026Aug 14, 2026
Trexquant Investment LpBuy+226,095226,095$3.59MQ2 2026Aug 14, 2026
Castleknight Management LpSell-207,200-70.6%86,100$1.37MQ2 2026Aug 14, 2026
Hrt Financial LpBuy+195,120195,120$3.09MQ2 2026Aug 14, 2026
Regal Partners LtdBuy+163,076163,076$2.59MQ2 2026Aug 14, 2026
Prelude Capital Management, LlcSell-157,155-33.2%316,851$5.03MQ2 2026Aug 14, 2026
Ameriprise Financial IncBuy+156,927156,927$2.49MQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+150,645+47.4%468,330$7.43MQ2 2026Aug 14, 2026
Lazard Asset Management LlcBuy+136,805+85.3%297,138$4.71MQ2 2026Aug 14, 2026
Squarepoint Ops LlcBuy+123,382+385.1%155,417$2.46MQ2 2026Aug 14, 2026
Boothbay Fund Management, LlcSell-114,277-32.0%242,386$3.84MQ2 2026Aug 14, 2026
Scientech Research LlcBuy+112,471112,471$1.78MQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+107,913+705.3%123,213$1.95MQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+93,91793,917$1.49MQ2 2026Aug 14, 2026
Scalar Gauge Management, LlcBuy+75,00075,000$1.19MQ2 2026Aug 14, 2026
Sei Investments CoBuy+58,806+339.1%76,147$1.21MQ2 2026Aug 14, 2026
Bank Of America CorpBuy+48,519+89.9%102,510$1.63MQ2 2026Aug 14, 2026
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Frequently asked questions about BLZE activity

  • Which institutional owners are buying BLZE?

    Institutional owners buying BLZE include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in BLZE activity?

    "Buy" means an investor increased their reported position in BLZE compared to the prior reporting period. This reflects growing exposure to BACKBLAZE INC-A (BLZE) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in BLZE increasing?

    Institutional interest in BLZE can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.