Joseph R Nerges Insider Trading Activity

Corporate Insider10%+ Owner · CIK 925974

Total trades

$269K

Total volume

May 13, 2026

Last activity

CSPI

CSP INC /MA/

Joseph R Nerges has been net-buying over the last 12 months with 29 purchases and 0 sales across 1 company.

CSPI is the most-traded position with 29 trades. The largest single transaction was a purchase of CSPI for $17K on Feb 17, 2026.

Performance Scorecard

Forward stock performance after each transaction by Joseph R Nerges. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	-7.8%	—	24%	46
90 days	-1.4%	—	51%	39
120 days	-6.8%	—	21%	39

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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CSPI · CSP INC /MA/

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
May 13, 2026	CSPI	Buy	400	$9.19	$4K	+0.0%	10%+ Owner
May 13, 2026	CSPI	Buy	500	$9.26	$5K	+0.0%	10%+ Owner
May 12, 2026	CSPI	Buy	800	$9.30	$7K	+0.1%	10%+ Owner
May 12, 2026	CSPI	Buy	200	$9.15	$2K	+0.0%	10%+ Owner
May 11, 2026	CSPI	Buy	500	$9.20	$5K	+0.0%	10%+ Owner
May 11, 2026	CSPI	Buy	348	$9.18	$3K	+0.0%	10%+ Owner
May 11, 2026	CSPI	Buy	1,500	$9.22	$14K	+0.1%	10%+ Owner
Mar 13, 2026	CSPI	Buy	200	$8.59	$2K	+0.0%	10%+ Owner
Mar 12, 2026	CSPI	Buy	500	$8.58	$4K	+0.0%	10%+ Owner
Mar 12, 2026	CSPI	Buy	407	$8.45	$3K	+0.0%	10%+ Owner
Mar 11, 2026	CSPI	Buy	300	$8.45	$3K	+0.0%	10%+ Owner
Mar 11, 2026	CSPI	Buy	400	$8.50	$3K	+0.0%	10%+ Owner
Feb 25, 2026	CSPI	Buy	500	$8.80	$4K	+0.0%	10%+ Owner
Feb 25, 2026	CSPI	Buy	200	$8.92	$2K	+0.0%	10%+ Owner
Feb 25, 2026	CSPI	Buy	300	$8.91	$3K	+0.0%	10%+ Owner
Feb 25, 2026	CSPI	Buy	100	$8.70	$870	+0.0%	10%+ Owner
Feb 24, 2026	CSPI	Buy	500	$8.69	$4K	+0.0%	10%+ Owner
Feb 19, 2026	CSPI	Buy	400	$9.13	$4K	+0.0%	10%+ Owner
Feb 19, 2026	CSPI	Buy	112	$9.18	$1K	+0.0%	10%+ Owner
Feb 18, 2026	CSPI	Buy	1,300	$9.20	$12K	+0.1%	10%+ Owner
Feb 18, 2026	CSPI	Buy	1,000	$9.30	$9K	+0.1%	10%+ Owner
Feb 18, 2026	CSPI	Buy	800	$9.12	$7K	+0.1%	10%+ Owner
Feb 17, 2026	CSPI	Buy	1,200	$9.18	$11K	+0.1%	10%+ Owner
Feb 17, 2026	CSPI	Buy	1,500	$9.32	$14K	+0.1%	10%+ Owner
Feb 17, 2026	CSPI	Buy	1,000	$9.27	$9K	+0.1%	10%+ Owner
Feb 17, 2026	CSPI	Buy	1,800	$9.21	$17K	+0.1%	10%+ Owner
Feb 17, 2026	CSPI	Buy	900	$9.15	$8K	+0.1%	10%+ Owner
Sep 15, 2025	CSPI	Buy	1,200	$11.21	$13K	+0.1%	10%+ Owner
Sep 15, 2025	CSPI	Buy	1,000	$11.21	$11K	+0.1%	10%+ Owner
Jun 13, 2025	CSPI	Buy	1,000	$11.99	$12K	+0.1%	10%+ Owner
Jun 13, 2025	CSPI	Buy	2,150	$11.91	$26K	+0.2%	10%+ Owner
Jun 13, 2025	CSPI	Buy	500	$11.80	$6K	+0.0%	10%+ Owner
Jun 13, 2025	CSPI	Buy	200	$11.71	$2K	+0.0%	10%+ Owner
Jun 6, 2025	CSPI	Buy	100	$13.48	$1K	+0.0%	10%+ Owner
Jun 6, 2025	CSPI	Buy	200	$13.86	$3K	+0.0%	10%+ Owner
Jun 5, 2025	CSPI	Buy	200	$13.92	$3K	+0.0%	10%+ Owner
Jun 4, 2025	CSPI	Buy	300	$14.10	$4K	+0.0%	10%+ Owner
Jun 4, 2025	CSPI	Buy	500	$13.96	$7K	+0.0%	10%+ Owner
Jun 4, 2025	CSPI	Buy	100	$13.91	$1K	+0.0%	10%+ Owner
May 29, 2025	CSPI	Buy	200	$14.75	$3K	+0.0%	10%+ Owner
May 28, 2025	CSPI	Buy	200	$14.65	$3K	+0.0%	10%+ Owner
May 28, 2025	CSPI	Buy	100	$14.64	$1K	+0.0%	10%+ Owner
May 27, 2025	CSPI	Buy	99	$14.74	$1K	+0.0%	10%+ Owner
May 27, 2025	CSPI	Buy	200	$14.80	$3K	+0.0%	10%+ Owner
May 27, 2025	CSPI	Buy	300	$14.60	$4K	+0.0%	10%+ Owner
May 27, 2025	CSPI	Buy	101	$14.75	$1K	+0.0%	10%+ Owner

Top Companies Traded

TICKER	COMPANY	TRADES	TOTAL VOLUME
CSPI	CSP INC /MA/	46	$269K