Whitmore Bradford T

CIK 0000933430

Director10% Owner

Filings

Latest May 26, 2026

Issuers covered

Showing

31 of 31

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Track record

52 of 68 open-market trades scored (76% price coverage) - 16 issuers without price data. Returns are signed: a +10% move on a sale shows as -10% (insider was wrong).

Horizon	Trades	Win rate	Avg	Median	Best	Worst
30 days	52	69%	+6.8%	+5.6%	+54.4%	-16.8%
90 days	49	67%	+42.6%	+21.8%	+190.2%	-30.3%
180 days	46	65%	+50.3%	+46.9%	+200.0%	-45.8%
365 days	37	78%	+105.4%	+20.9%	+454.9%	-24.8%

Issuers

Companies where Whitmore Bradford T has filed

Ticker	Issuer	Filings	Last filed
ULBI	Ultralife Corp	21	May 26, 2026
NANX	Nanophase Technologies Corp	8	Jun 2, 2025
CLSD	Clearside Biomedical, Inc.	2	Feb 9, 2024

All filings

31 Form 4 / 4-A filings, newest first

Filed	Issuer	Top transaction	Shares	Price	Value
May 26, 2026	ULBIUltralife Corp	PPurchase	67,302	$6.8137	$458,576
Mar 16, 2026	ULBIUltralife Corp	PPurchase	100,640	$6.3244	$636,488
Jan 5, 2026	ULBIUltralife Corp	Holdings only	-	-	-
Dec 16, 2025	ULBIUltralife Corp	PPurchase	28,588	$5.7026	$163,026
Nov 21, 2025	ULBIUltralife Corp	PPurchase	53,900	$4.9706	$267,915
Aug 21, 2025	ULBIUltralife Corp	PPurchase	29,766	$6.6287	$197,310
Jun 13, 2025	ULBIUltralife Corp	PPurchase	10,000	$7.6392	$76,392
Jun 2, 2025	NANXNanophase Technologies Corp	PPurchase	4,189,000	$4.20	$17,593,800
May 28, 2025	ULBIUltralife Corp	PPurchase	11,980	$5.4072	$64,778
May 15, 2025	ULBIUltralife Corp	PPurchase	16,063	$5.4715	$87,889
Sep 3, 2024	NANXNanophase Technologies Corp	Holdings only	-	-	-
Sep 3, 2024	ULBIUltralife Corp	Holdings only	-	-	-
Jun 26, 2024	NANXNanophase Technologies Corp	CConversion	15,000,000	$0.00	$0
Mar 5, 2024	NANXNanophase Technologies Corp	Holdings only	-	-	-
Feb 12, 2024	NANXNanophase Technologies Corp	PPurchase	2,791,725	$0.40	$1,116,690
Feb 9, 2024	CLSDClearside Biomedical, Inc.	PPurchase	444,444	$1.35	$599,999
Dec 8, 2023	ULBIUltralife Corp	PPurchase	8,877	$6.8271	$60,604
Nov 29, 2023	ULBIUltralife Corp	PPurchase	11,160	$7.0813	$79,027
Nov 1, 2023	CLSDClearside Biomedical, Inc.	PPurchase	70,812	$0.7278	$51,537
Nov 1, 2023	ULBIUltralife Corp	PPurchase	10,171	$7.0362	$71,565
Sep 15, 2023	ULBIUltralife Corp	PPurchase	5,659	$10.0209	$56,708
Aug 23, 2023	NANXNanophase Technologies Corp	PPurchase	44,198	$0.9186	$40,600
Jun 14, 2023	ULBIUltralife Corp	PPurchase	33,797	$4.9672	$167,876
Jun 5, 2023	ULBIUltralife Corp	PPurchase	5,964	$4.4001	$26,242
Jun 1, 2023	NANXNanophase Technologies Corp	PPurchase	8,200	$1.1764	$9,646
Jun 1, 2023	ULBIUltralife Corp	PPurchase	20,247	$4.3269	$87,607
May 19, 2023	NANXNanophase Technologies Corp	PPurchase	53,040	$0.7715	$40,920
May 11, 2023	ULBIUltralife Corp	PPurchase	20,256	$4.0804	$82,653
Mar 13, 2023	ULBIUltralife Corp	PPurchase	14,338	$4.07	$58,356
Jun 8, 2022	ULBIUltralife Corp	PPurchase	30,690	$5.1989	$159,554
Feb 28, 2022	ULBIUltralife Corp	PPurchase	54,900	$4.4448	$244,020

Showing 1-31 of 31

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Real-time Form 4 intelligence. Smarter insider tracking.

Filed		Top transaction	Shares	Price	Value