BRK-B · Form SD · BERKSHIRE HATHAWAY INC

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BRK-B · Form SD · BERKSHIRE HATHAWAY INC | Signal8

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GUERGuerrilla RF, Inc. Nov 6, 2026 · 9:48 PM ET 13D/A Salem Investment Partners V, SIP V Management LLC, and Badger Capital II filed a Schedule… Exhibits:EX-99.1	Nov 6, 20269:48 PM ET	13D/A	GUER Guerrilla RF, Inc.	Exhibits:EX-99.1 Salem Investment Partners V, SIP V Management LLC, and Badger Capital II filed a Schedule 13D/A on Guerrilla RF disclosing that Salem transferred 759,377 shares plus 113,757 shares…
GUERGuerrilla RF, Inc. Nov 6, 2026 · 9:46 PM ET 13D/A AMB Investments LLC and Alvin M. Bodford amended their Schedule 13D on Guerrilla RF, Inc.…	Nov 6, 20269:46 PM ET	13D/A	GUER Guerrilla RF, Inc.	AMB Investments LLC and Alvin M. Bodford amended their Schedule 13D on Guerrilla RF, Inc. to report beneficial ownership of 2,060,677 shares, or approximately 18.68% of outstanding…
LNZALanzaTech Global, Inc. Nov 6, 2026 · 9:26 PM ET 13D/A Khosla Ventures entities and Vinod Khosla filed Amendment No. 3 to their Schedule 13D on L…	Nov 6, 20269:26 PM ET	13D/A	LNZA LanzaTech Global, Inc.	Khosla Ventures entities and Vinod Khosla filed Amendment No. 3 to their Schedule 13D on LanzaTech Global, reporting aggregate beneficial ownership of 13,216,919 shares, or approxi…
RHLDResolute Holdings Management, Inc. Nov 6, 2026 · 9:00 PM ET 13D/A Tungsten ManCo Holder LLC and affiliated reporting persons filed Amendment No. 3 to their… Exhibits:EX-99	Nov 6, 20269:00 PM ET	13D/A	RHLD Resolute Holdings Management, Inc.	Exhibits:EX-99 Tungsten ManCo Holder LLC and affiliated reporting persons filed Amendment No. 3 to their Schedule 13D on Resolute Holdings Management, Inc., dated November 5, 2026. The amendment…
GPGIGPGI, Inc. Nov 6, 2026 · 9:00 PM ET 13D/A Tungsten-affiliated reporting persons filed Amendment No. 8 to their Schedule 13D on GPGI,… Exhibits:EX-99	Nov 6, 20269:00 PM ET	13D/A	GPGI GPGI, Inc.	Exhibits:EX-99 Tungsten-affiliated reporting persons filed Amendment No. 8 to their Schedule 13D on GPGI, Inc., updating ownership of Class A Common Stock as of November 6, 2026. The filing state…
SVIASilvia, Inc. Nov 6, 2026 · 8:09 PM ET 13D/A Anthony Pompliano and Professional Capital Management filed Amendment No. 5 to their Sched… Exhibits:EX-8EX-9	Nov 6, 20268:09 PM ET	13D/A	SVIA Silvia, Inc.	Exhibits:EX-8EX-9 Anthony Pompliano and Professional Capital Management filed Amendment No. 5 to their Schedule 13D on Silvia, Inc. (BRR), now reporting beneficial ownership of 15,101,020 shares, or…
BAKBRASKEM SA Nov 6, 2026 · 7:58 PM ET 13D The Carlos Slim family group, through Control Empresarial, Fundacion Carlos Slim, and Fund… Exhibits:EX-1EX-99.1	Nov 6, 20267:58 PM ET	13D	BAK BRASKEM SA	Exhibits:EX-1EX-99.1 The Carlos Slim family group, through Control Empresarial, Fundacion Carlos Slim, and Fundacion Telmex, filed a Schedule 13D disclosing beneficial ownership of approximately 22.5 m…
MCBMetropolitan Bank Holding Corp. Nov 6, 2026 · 7:25 PM ET 13D/A The Patriot Financial Group filed Amendment No. 3 to its Schedule 13D on Metropolitan Bank… Exhibits:EX-99.1	Nov 6, 20267:25 PM ET	13D/A	MCB Metropolitan Bank Holding Corp.	Exhibits:EX-99.1 The Patriot Financial Group filed Amendment No. 3 to its Schedule 13D on Metropolitan Bank Holding Corp., disclosing that its stake has been reduced to 584,946 shares, or 4.76% of…
VIRVir Biotechnology, Inc. Nov 6, 2026 · 6:55 PM ET 13D/A ARCH Venture Fund IX and ARCH Venture Fund IX Overage sold a combined 796,175 shares of Vi…	Nov 6, 20266:55 PM ET	13D/A	VIR Vir Biotechnology, Inc.	ARCH Venture Fund IX and ARCH Venture Fund IX Overage sold a combined 796,175 shares of Vir Biotechnology common stock between November 3 and November 5, 2026, at weighted average…
TGEGeneration Essentials Group Nov 6, 2026 · 6:43 PM ET 13D AMTD Group, AMTD IDEA Group and AMTD Digital filed a Schedule 13D disclosing beneficial ow… Exhibits:EX-99.1EX-99.2+1	Nov 6, 20266:43 PM ET	13D	TGE Generation Essentials Group	Exhibits:EX-99.1EX-99.2+1 AMTD Group, AMTD IDEA Group and AMTD Digital filed a Schedule 13D disclosing beneficial ownership of 95.7% of The Generation Essentials Group's Class A ordinary shares, up from a p…
ASPEAspen Neuroscience, Inc. Nov 6, 2026 · 6:38 PM ET 13D OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC filed a Schedule 13D disclosing benefi… Exhibits:EX-99.1	Nov 6, 20266:38 PM ET	13D	ASPE Aspen Neuroscience, Inc.	Exhibits:EX-99.1 OrbiMed Advisors LLC and OrbiMed Capital GP VII LLC filed a Schedule 13D disclosing beneficial ownership of 3,589,132 shares of Aspen Neuroscience common stock, approximately 12.3%…
MDGLMADRIGAL PHARMACEUTICALS, INC. Nov 6, 2026 · 6:15 PM ET 13D/A Baker Bros. Advisors LP and related reporting persons (including Chairman Julian C. Baker… Exhibits:EX-99.1EX-99.2	Nov 6, 20266:15 PM ET	13D/A	MDGL MADRIGAL PHARMACEUTICALS, INC.	Exhibits:EX-99.1EX-99.2 Baker Bros. Advisors LP and related reporting persons (including Chairman Julian C. Baker and Felix J. Baker) filed Amendment No. 5 to their Schedule 13D on Madrigal Pharmaceutical…
NRCNRC HEALTH Nov 6, 2026 · 6:11 PM ET 13D/A Common Property Trust, affiliated LLCs, Patrick Beans, and NRC Health Chairman Michael D.…	Nov 6, 20266:11 PM ET	13D/A	NRC NRC HEALTH	Common Property Trust, affiliated LLCs, Patrick Beans, and NRC Health Chairman Michael D. Hays filed Amendment No. 5 to their Schedule 13D on NRC Health common stock, updating bene…
HCAHCA Healthcare, Inc. Nov 6, 2026 · 6:01 PM ET 13D/A The Frist family reporting group filed Amendment No. 1 to its Schedule 13D on HCA Healthca…	Nov 6, 20266:01 PM ET	13D/A	HCA HCA Healthcare, Inc.	The Frist family reporting group filed Amendment No. 1 to its Schedule 13D on HCA Healthcare, restating beneficial ownership figures. Frisco Holding II holds 38.9 million shares (1…
PONOPono Capital Four, Inc. Nov 6, 2026 · 5:30 PM ET 425Pono Capital Four, the SPAC pursuing a merger with satellite company Blackstar Orbital Tec… Exhibits:EX-2.1	Nov 6, 20265:30 PM ET	425	PONO Pono Capital Four, Inc.	Exhibits:EX-2.1 Pono Capital Four, the SPAC pursuing a merger with satellite company Blackstar Orbital Technologies, agreed on November 5, 2026 to slash the deal's Base Purchase Price from $380 mi…
PONOPono Capital Four, Inc. Nov 6, 2026 · 5:30 PM ET 8-K Pono Capital Four entered a First Amendment to its Merger Agreement with Blackstar Orbital… 1.01Material agreement9.01ExhibitsExhibits:EX-2.1	Nov 6, 20265:30 PM ET	8-K	PONO Pono Capital Four, Inc.	1.01Material agreement9.01ExhibitsExhibits:EX-2.1 Pono Capital Four entered a First Amendment to its Merger Agreement with Blackstar Orbital Technologies on November 5, 2026, cutting the Base Purchase Price from $380 million to $2…
HHyatt Hotels Corp Nov 6, 2026 · 5:30 PM ET 13D/A The Pritzker family group filed Amendment No. 6 to its 2010 Schedule 13D on Hyatt Hotels C…	Nov 6, 20265:30 PM ET	13D/A	H Hyatt Hotels Corp	The Pritzker family group filed Amendment No. 6 to its 2010 Schedule 13D on Hyatt Hotels Corporation, disclosing that as of November 4, 2026 the group beneficially owns 766,775 Cla…
XHLDTEN Holdings, Inc. Nov 6, 2026 · 5:29 PM ET 8-K TEN Holdings reported Q3 2026 revenue of $640,000, up 17.9% year over year, but its net lo… 2.02Results of operations9.01ExhibitsExhibits:EX-99.1	Nov 6, 20265:29 PM ET	8-K	XHLD TEN Holdings, Inc.	2.02Results of operations9.01ExhibitsExhibits:EX-99.1 TEN Holdings reported Q3 2026 revenue of $640,000, up 17.9% year over year, but its net loss widened 87.9% to $3.73 million, or $(0.31) per share, driven by a $1.8 million write-of…
BIAFbioAffinity Technologies, Inc. Nov 6, 2026 · 5:28 PM ET 8-K bioAffinity Technologies reported Q3 2026 revenue of approximately $1.1 million, down abou… 2.02Results of operations9.01ExhibitsExhibits:EX-99.1	Nov 6, 20265:28 PM ET	8-K	BIAF bioAffinity Technologies, Inc.	2.02Results of operations9.01ExhibitsExhibits:EX-99.1 bioAffinity Technologies reported Q3 2026 revenue of approximately $1.1 million, down about 26% from $1.4 million a year earlier, citing lower average reimbursement per CyPath Lung…
RLYBRallybio Corp Nov 6, 2026 · 5:28 PM ET 425Rallybio announced that the closing of its merger with Avenzo Therapeutics, previously sch…	Nov 6, 20265:28 PM ET	425	RLYB Rallybio Corp	Rallybio announced that the closing of its merger with Avenzo Therapeutics, previously scheduled for November 6, 2026, has been postponed because certain conditions related to post…

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