Lightpath Technologies (LPTH)

Lightpath Technologies on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as semiconductors & related devices.

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11.9M

Short interest

settlement 2026-10-15

4.1

Days to cover

-0.6 days vs prior

43.7%

Short share of volume

2026-11-02

4,880

Fails to deliver

settlement 2026-10-14

Wed 11 Nov

Next earnings

estimated date

Insider flow, 90 days

0 buys, 0 sells

As of 2026-11-02.

Short interest

FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSON

As of 15 October 2026, short interest in LPTH is 11,933,023 shares, up 528,062 shares over the last month. Over the last 48 readings it ranged from 48,382 shares (15 November 2024) to 12,121,229 shares (30 September 2026). The latest reading sits at the top of that range. At the reported average volume of 2.9M shares a day that is 4.1 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-10-15	11,933,023	-1.6%	2,901,737	4.11
2026-09-30	12,121,229	+6.3%	2,598,136	4.67
2026-09-15	11,404,961	+12.4%	3,743,323	3.05
2026-08-31	10,145,630	-5.5%	3,286,925	3.09
2026-08-14	10,734,823	+1.7%	2,485,779	4.32
2026-07-31	10,553,423	+10.6%	2,867,642	3.68
2026-07-15	9,540,633	+18.1%	2,622,343	3.64
2026-06-30	8,081,283	+14.0%	3,730,287	2.17
2026-06-15	7,087,802	+9.2%	4,111,299	1.72
2026-05-29	6,493,811	+48.0%	5,422,203	1.20
2026-05-15	4,387,122	+21.3%	2,992,606	1.47
2026-04-30	3,617,485	-11.2%	3,515,781	1.03
2026-04-15	4,075,766	+19.9%	2,113,914	1.93
2026-03-31	3,397,858	-4.6%	1,980,271	1.72
2026-03-13	3,562,913	+4.3%	1,936,778	1.84
2026-02-27	3,417,502	+5.5%	2,508,108	1.36
2026-02-13	3,238,609	+16.7%	3,081,665	1.05
2026-01-30	2,775,694	+31.0%	3,839,194	1.00
2026-01-15	2,118,428	+0.5%	3,092,044	1.00
2025-12-31	2,107,214	+43.5%	1,946,188	1.08
2025-12-15	1,468,042	-9.7%	1,468,035	1.00
2025-11-28	1,625,189	-18.4%	903,384	1.80
2025-11-14	1,990,614	+10.9%	1,661,377	1.20
2025-10-31	1,794,223	+20.7%	1,976,482	1.00
2025-10-15	1,486,258	+49.3%	2,192,417	1.00
2025-09-30	995,555	+58.6%	2,213,851	1.00
2025-09-15	627,829	+10.0%	1,674,230	1.00
2025-08-29	570,781	+48.6%	1,376,269	1.00
2025-08-15	384,209	+38.4%	327,566	1.17
2025-07-31	277,700	-9.1%	205,402	1.35
2025-07-15	305,585	-7.0%	140,952	2.17
2025-06-30	328,662	+22.7%	154,757	2.12
2025-06-13	267,768	-7.3%	178,518	1.50
2025-05-30	288,889	-10.9%	203,782	1.42
2025-05-15	324,326	+1.7%	122,503	2.65
2025-04-30	318,798	+19.0%	99,960	3.19
2025-04-15	267,868	-8.0%	130,083	2.06
2025-03-31	291,029	-7.8%	100,167	2.91
2025-03-14	315,724	-6.6%	159,045	1.99
2025-02-28	338,020	-22.0%	315,743	1.07
2025-02-14	433,140	+349.8%	436,418	1.00
2025-01-31	96,288	+50.3%	232,251	1.00
2025-01-15	64,079	-70.5%	639,109	1.00
2024-12-31	216,869	+197.8%	623,622	1.00
2024-12-13	72,817	+41.0%	369,133	1.00
2024-11-29	51,643	+6.7%	136,720	1.00
2024-11-15	48,382	-28.5%	40,942	1.18
2024-10-31	67,659	-35.8%	54,467	1.24

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 2 November 2026, the short share of LPTH volume is 43.7%, down 12.2 points over the last five sessions. Over the last 30 readings it ranged from 25.0% (22 October 2026) to 58.1% (21 October 2026). The latest reading is 4.9 points above the 30-session average of 38.8%, on 1.2M shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-11-02	523K	1.2M	43.7%	446
2026-10-30	470K	1.5M	31.9%	4,448
2026-10-29	331K	874K	37.8%	3,967
2026-10-28	353K	1.1M	33.5%	2,279
2026-10-27	641K	1.3M	48.9%	5,353
2026-10-26	598K	1.1M	55.9%	8,601
2026-10-23	397K	1.2M	32.4%	387
2026-10-22	453K	1.8M	25.0%	18,905
2026-10-21	653K	1.1M	58.1%	2,424
2026-10-20	612K	1.7M	35.9%	22,718
2026-10-19	303K	1.0M	29.9%	846
2026-10-16	468K	1.5M	32.0%	6,094
2026-10-15	565K	1.6M	36.1%	80,839
2026-10-14	926K	2.5M	36.9%	21,907
2026-10-13	622K	1.4M	43.0%	14,961
2026-10-12	532K	1.4M	37.2%	7,493
2026-10-09	292K	949K	30.7%	223
2026-10-08	413K	1.3M	31.1%	15,392
2026-10-07	369K	1.0M	35.7%	3,625
2026-10-06	415K	1.0M	40.5%	3
2026-10-05	446K	1.1M	42.4%	0
2026-10-02	453K	1.0M	45.2%	2,899
2026-10-01	563K	1.4M	40.5%	55
2026-09-30	413K	955K	43.3%	3,500
2026-09-29	328K	716K	45.8%	4
2026-09-28	412K	981K	42.0%	9,194
2026-09-25	249K	645K	38.7%	5
2026-09-24	273K	809K	33.8%	339
2026-09-23	402K	1.1M	35.4%	167
2026-09-22	539K	1.3M	41.1%	12,100

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 October 2026, the fails-to-deliver balance in LPTH is 4,880 shares, up 4,052 shares over the last settlement date. Over the last 30 readings it ranged from 27 shares (25 June 2026) to 1,864,009 shares (29 June 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-10-14	4,880	$8.91	$43K
2026-10-13	828	$8.83	$7K
2026-10-07	5,184	$10.87	$56K
2026-10-05	95,749	$11.04	$1.1M
2026-09-25	235,747	$10.06	$2.4M
2026-09-24	4,377	$9.81	$43K
2026-09-23	180	$10.15	$2K
2026-09-22	135	$10.20	$1K
2026-09-15	905	$9.11	$8K
2026-09-14	156	$9.20	$1K
2026-09-03	22,124	$9.54	$211K
2026-09-02	103,139	$9.47	$977K
2026-09-01	480	$10.06	$5K
2026-08-31	94,226	$11.23	$1.1M
2026-08-27	522	$13.18	$7K
2026-08-24	6,874	$14.42	$99K
2026-08-19	1,230	$14.22	$17K
2026-08-17	30	$15.17	$455
2026-08-05	663	$12.49	$8K
2026-07-29	13,101	$10.37	$136K
2026-07-21	3,758	$10.36	$39K
2026-07-16	105	$11.42	$1K
2026-07-14	71	$11.03	$783
2026-07-09	566,739	$12.67	$7.2M
2026-07-08	5,273	$12.70	$67K
2026-07-07	558,700	$14.10	$7.9M
2026-07-01	42,716	$16.35	$698K
2026-06-30	648,987	$14.57	$9.5M
2026-06-29	1,864,009	$13.13	$24.5M
2026-06-25	27	$13.00	$351

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for LPTH in the last 90 days. The most recent filings are listed below. Latest filing: HAMMER TODD B (Member) on 2026-06-03.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-06-03	HAMMER TODD B	Member	Sell	3.6M	$14.00	$50.0M	2.9M
2026-06-03	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	3.6M	$14.00	$50.0M	2.9M
2026-06-02	HAMMER TODD B	Member	Conversion	3.6M	$2.15	$7.7M	6.5M
2026-06-02	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Conversion	3.6M	$2.15	$7.7M	6.5M
2026-05-18	HAMMER TODD B	Member	Sell	55K	$12.32	$681K	2.9M
2026-05-18	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	55K	$12.32	$681K	2.9M
2026-05-14	North Run Strategic Opportunities Fund I GP, LLC	Member	Sell	165K	$12.16	$2.0M	3.0M
2026-05-14	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	165K	$12.16	$2.0M	3.0M
2026-05-13	North Run Strategic Opportunities Fund I GP, LLC	Member	Sell	45K	$12.29	$553K	3.2M
2026-05-13	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	45K	$12.29	$553K	3.2M
2026-05-12	North Run Strategic Opportunities Fund I GP, LLC	Member	Sell	83K	$12.25	$1.0M	3.2M
2026-05-12	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	83K	$12.25	$1.0M	3.2M
2026-03-27	Rubin Shmuel	President & CEO	Buy	180	$9.70	$2K	261K
2026-03-25	North Run Strategic Opportunities Fund I GP, LLC	Other	Sell	302K	$12.31	$3.7M	3.3M
2026-03-25	North Run Strategic Opportunities Fund I GP, LLC	Other	Conversion	740K	$2.15	$1.6M	3.6M
2026-03-25	North Run Strategic Opportunities Fund I, LP	Director, 10% owner	Sell	302K	$12.31	$3.7M	3.3M
2026-03-25	North Run Strategic Opportunities Fund I, LP	Director, 10% owner	Conversion	740K	$2.15	$1.6M	3.6M
2026-03-24	North Run Strategic Opportunities Fund I GP, LLC	Other	Sell	55K	$12.06	$658K	2.8M
2026-03-24	North Run Strategic Opportunities Fund I, LP	Director, 10% owner	Sell	55K	$12.06	$658K	2.8M
2026-03-18	ELLIS THOMAS B	Director,Other	Sell	16K	$12.00	$192K	2.9M
2026-03-18	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	16K	$12.00	$192K	2.9M
2026-03-17	ELLIS THOMAS B	Director,Other	Sell	104K	$12.01	$1.3M	2.9M
2026-03-17	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	104K	$12.01	$1.3M	2.9M
2026-03-04	ELLIS THOMAS B	Director,Other	Sell	55K	$12.09	$665K	3.0M
2026-03-04	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	55K	$12.09	$665K	3.0M
2026-03-03	ELLIS THOMAS B	Director,Other	Sell	381K	$12.18	$4.6M	3.1M
2026-03-03	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	381K	$12.18	$4.6M	3.1M
2026-03-02	ELLIS THOMAS B	Director,Other	Conversion	740K	$2.15	$1.6M	3.7M
2026-03-02	ELLIS THOMAS B	Director,Other	Sell	239K	$12.03	$2.9M	3.5M
2026-03-02	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	239K	$12.03	$2.9M	3.5M
2026-03-02	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Conversion	740K	$2.15	$1.6M	3.7M
2026-02-25	ELLIS THOMAS B	Director,Other	Sell	300K	$12.18	$3.7M	3.0M
2026-02-25	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	300K	$12.18	$3.7M	3.0M
2026-02-24	ELLIS THOMAS B	Director,Other	Sell	131K	$12.02	$1.6M	3.3M
2026-02-24	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	131K	$12.02	$1.6M	3.3M
2026-02-23	ELLIS THOMAS B	Director,Other	Sell	7K	$12.01	$78K	3.4M
2026-02-23	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	7K	$12.01	$78K	3.4M
2026-02-20	ELLIS THOMAS B	Director,Other	Sell	377K	$12.15	$4.6M	3.4M
2026-02-20	ELLIS THOMAS B	Director,Other	Conversion	1.3M	$2.15	$2.7M	4.0M
2026-02-20	ELLIS THOMAS B	Director,Other	Sell	219K	$13.18	$2.9M	3.8M
2026-02-20	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	377K	$12.15	$4.6M	3.4M
2026-02-20	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	219K	$13.18	$2.9M	3.8M
2026-02-20	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Conversion	1.3M	$2.15	$2.7M	4.0M
2026-02-02	Miranda Albert	CFO	Exercise or conversion	12K	price not stated in the filing	not stated	79K
2026-02-02	Rubin Shmuel	President & CEO	Exercise or conversion	29K	price not stated in the filing	not stated	261K
2026-01-05	NORTH RUN GP, LP	Other	Sell	770K	$11.72	$9.0M	2.7M
2026-01-05	NORTH RUN GP, LP	Other	Exercise (in or at the money)	3.5M	$2.58	$9.0M	3.5M
2026-01-05	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Sell	770K	$11.72	$9.0M	2.7M
2026-01-05	North Run Strategic Opportunities Fund I, LP	Director, 10% owner, Member	Exercise (in or at the money)	3.5M	$2.58	$9.0M	3.5M
2025-12-19	Rubin Shmuel	Chief Executive Officer	Gift	13K	$0.00	$0	232K
2025-11-20	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	10K	price not stated in the filing	not stated	254K
2025-11-20	Miranda Albert	Chief Financial Officer	Exercise or conversion	4K	price not stated in the filing	not stated	67K
2025-11-20	CREVISTON STEVEN E	Director	Exercise or conversion	19K	price not stated in the filing	not stated	171K
2025-11-20	ELLIS THOMAS B	Director,TenPercentOwner	Exercise or conversion	7K	price not stated in the filing	not stated	7K
2025-11-20	Crider Kimberly Anne	Director	Exercise or conversion	19K	price not stated in the filing	not stated	69K
2025-11-17	Miranda Albert	Chief Financial Officer	Exercise or conversion	7K	price not stated in the filing	not stated	63K
2025-11-17	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	17K	price not stated in the filing	not stated	245K
2025-02-25	Rubin Shmuel	Chief Executive Officer	Buy	1K	$2.45	$2K	228K
2025-02-20	Crider Kimberly Anne	Director	Buy	1K	$2.51	$3K	45K
2025-02-19	Rubin Shmuel	Chief Executive Officer	Buy	1K	$2.56	$3K	227K
2025-01-31	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	28K	price not stated in the filing	not stated	226K
2025-01-31	Miranda Albert	Chief Financial Officer	Exercise or conversion	12K	price not stated in the filing	not stated	55K
2025-01-31	CREVISTON STEVEN E	Director	Exercise or conversion	44K	price not stated in the filing	not stated	152K
2025-01-31	Crider Kimberly Anne	Director	Exercise or conversion	44K	price not stated in the filing	not stated	44K
2024-11-18	Miranda Albert	Chief Financial Officer	Exercise or conversion	7K	price not stated in the filing	not stated	43K
2024-11-18	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	17K	price not stated in the filing	not stated	198K
2024-11-11	Miranda Albert	Chief Financial Officer	Exercise or conversion	5K	price not stated in the filing	not stated	36K
2024-11-11	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	11K	price not stated in the filing	not stated	181K
2024-04-30	LEEBURG LOUIS	Other	Exercise or conversion	502K	price not stated in the filing	not stated	617K
2024-02-26	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	36K	price not stated in the filing	not stated	170K
2024-01-31	Miranda Albert	Chief Financial Officer	Exercise or conversion	11K	price not stated in the filing	not stated	31K
2024-01-31	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	26K	price not stated in the filing	not stated	135K
2024-01-31	Peck Darcie	Director	Exercise or conversion	58K	price not stated in the filing	not stated	160K
2024-01-31	CREVISTON STEVEN E	Director	Exercise or conversion	57K	price not stated in the filing	not stated	108K
2023-10-02	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	2K	price not stated in the filing	not stated	109K
2023-10-02	Miranda Albert	Chief Financial Officer	Exercise or conversion	1K	price not stated in the filing	not stated	20K
2023-03-10	Rubin Shmuel	Chief Executive Officer	Exercise or conversion	40K	price not stated in the filing	not stated	98K
2022-12-02	Rubin Shmuel	Chief Executive Officer	Grant	11K	price not stated in the filing	not stated	58K
2022-12-02	Miranda Albert	Chief Financial Officer	Grant	5K	price not stated in the filing	not stated	14K
2022-12-01	Rubin Shmuel	Chief Executive Officer	Grant	2K	$1.24	$2K	48K
2022-11-18	CREVISTON STEVEN E	Director	Exercise or conversion	38K	price not stated in the filing	not stated	52K
2022-11-18	Dunham Craig T	Director	Exercise or conversion	32K	price not stated in the filing	not stated	65K
2022-11-18	Peck Darcie	Director	Exercise or conversion	55K	price not stated in the filing	not stated	101K
2022-06-29	Rubin Shmuel	Chief Executive Officer	Buy	700	$1.25	$875	46K
2022-06-29	Miranda Albert	Chief Financial Officer	Buy	800	$1.25	$1K	10K
2022-05-20	LEEBURG LOUIS	Director	Buy	3K	$1.60	$5K	119K
2022-05-20	LEEBURG LOUIS	Director	Buy	3K	$1.76	$5K	112K
2022-05-17	Rubin Shmuel	Chief Executive Officer	Buy	2K	$1.70	$3K	45K
2022-03-29	Peck Darcie	Director	Buy	18K	$2.09	$38K	23K
2022-03-29	Peck Darcie	Director	Buy	169	$2.04	$345	23K
2022-03-29	Peck Darcie	Director	Buy	2K	$2.05	$5K	23K
2022-03-29	Peck Darcie	Director	Buy	200	$2.07	$414	23K
2022-03-29	Peck Darcie	Director	Buy	1K	$2.06	$3K	23K
2022-03-23	Rubin Shmuel	Chief Executive Officer	Buy	500	$1.99	$995	43K
2022-03-23	LEEBURG LOUIS	Director	Buy	2K	$2.04	$4K	109K
2022-03-01	Rubin Shmuel	Chief Executive Officer	Buy	300	$2.11	$633	43K
2022-02-23	Rubin Shmuel	Chief Executive Officer	Buy	500	$2.10	$1K	43K
2022-02-23	Miranda Albert	Chief Financial Officer	Buy	5K	$2.00	$10K	9K
2021-12-03	Rubin Shmuel	Chief Executive Officer	Buy	666	$1.77	$1K	42K
2021-11-30	LEEBURG LOUIS	Director	Buy	3K	$1.97	$5K	107K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Planned sales (Form 144)

Newest first. JSON

3 Form 144 notices on file for LPTH worth $68.9M at the prices reported; 0 in the last 90 days worth $0. Latest: North Run Strategic Opportunities Fund I, LP filed on 2026-03-04 to sell 2,000,000 shares ($22.5M) from 2026-02-20.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-03-04	North Run Strategic Opportunities Fund I, LPShareholder and Director	2.0M	$22.5M	3.466%	2026-02-20	Glen Eagle Wealth LLC
2026-03-04	North Run Strategic Opportunities Fund I, LPShareholder and Director	2.0M	$24.0M	3.350%	2026-03-04	Glen Eagle Wealth LLC
2026-02-20	North Run Strategic Opportunities Fund I, LPShareholder and Director	2.0M	$22.5M	3.466%	2026-02-20	Glen Eagle Wealth LLC

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

6 holders report 5% or more of LPTH in their latest filing, 4 on Schedule 13D (active intent). The largest reported stake is HAMMER TODD B at 9.6% of the class (6,717,376 shares), filed 2026-06-04 for an event on 2026-06-03.

Filed	Form	Holder	Shares	Of class	Event
2026-08-14	13G	Hood River Capital Management LLCinvestment adviser	3.6M	5.4%	2026-06-30
2026-07-31	13G/Ano. 1	Vanguard Capital Managementinvestment adviser	3.1M	4.7%	2026-06-30
2026-07-29	13G	BlackRock, Inc.parent holding company	4.3M	6.5%	2026-06-30
2026-06-04	13D/Ano. 5	HAMMER TODD Bindividual	6.7M	9.6%	2026-06-03
2026-06-04	13D/Ano. 5	ELLIS THOMAS Bindividual	6.7M	9.6%	2026-06-03
2026-06-04	13D/Ano. 5	North Run Strategic Opportunities Fund I GP, LLCother entity	6.7M	9.6%	2026-06-03
2026-06-04	13D/Ano. 5	North Run Strategic Opportunities Fund I, LPpartnership	6.7M	9.6%	2026-06-03
2025-11-10	13G/Ano. 4	Orin Hirschmanparent holding company, individual	2.2M	4.8%	2025-10-17
2025-11-10	13G/Ano. 4	AIGH Capital Management LLCinvestment adviser, other entity	2.2M	4.8%	2025-10-17
2025-10-10	13G/Ano. 2	Marathon Micro Fund, LPinvestment adviser	2.1M	4.9%	2025-10-09

13F holders

Tracked managers holding LPTH at their latest 13F. JSON

4 of the 30 tracked managers held LPTH at their latest 13F, $48.0M in total at quarter-end prices. Citadel Advisors is the largest at $17.3M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 1 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
Citadel Advisors	2026-06-30	1.1M	$17.3M	0.00%	+272K
Two Sigma Investments	2026-06-30	678K	$11.1M	0.01%	+561K
Renaissance Technologies	2026-06-30	672K	$11.0M	0.02%	+276K
Millennium Management	2026-06-30	529K	$8.7M	0.00%	-125K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

Lightpath Technologies in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Lightpath Technologies (LPTH), SEC CIK 889971, listed on Nasdaq, classified by the SEC as semiconductors & related devices. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest: FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-14.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-03-04.JSON and CSV
Large holders: SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
13F holders: SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Earnings dates: SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-09-10.JSON and CSV
Insider trades: SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-06-03.JSON and CSV
Company record: EDGAR filing index for CIK 889971Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits: 10 requests a minute without a key, 30 with a free key from a free account.

How to read it

Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as semiconductors & related devices

Other company pages

Datasets

Frequently Asked Questions

How much of LPTH is sold short?

11,933,023 shares were held short at the 2026-10-15 settlement, 4.1 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.

What is LPTH's daily short volume?

On 2026-11-02, 522,863 of the 1,195,684 LPTH shares reported to FINRA were sold short, 43.7% of the day's reported volume. Short volume is a flow for one day, not a position.

Does LPTH have fails to deliver?

The SEC's latest file shows 4,880 LPTH shares failed to deliver at settlement 2026-10-14. Fails are reported per settlement date and published twice a month with a lag.

Are LPTH insiders buying or selling?

No open-market insider trades were reported for LPTH in the last 90 days. The most recent filings are listed below. Latest filing: HAMMER TODD B (Member) on 2026-06-03.

Have LPTH insiders filed to sell?

Who owns 5% or more of LPTH?

Which tracked 13F managers own LPTH?

4 of the 30 tracked 13F managers held LPTH shares at their latest filing, $48.0M in all. The largest: Ken Griffin's Citadel Advisors (1.1M shares, $17.3M), Two Sigma Investments (678K shares, $11.1M), Renaissance Technologies (672K shares, $11.0M), Izzy Englander's Millennium Management (529K shares, $8.7M).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.