Shannon River Fund Management LLC

NEW YORK, NY · CIK 1301050 · 13F filing filed 2026-08-13

SEC-registered investment adviser since 2012 · limited liability company

Assets managed$904.7m
Staff9 · 5 in investment roles
Main clients (by assets)Private funds 100%
Private funds2 (2 hedge) · $750.0m gross assets
Websiteshannonpartners.com
Form ADV · 2026-07-02SEC adviser record

Legal entitySHANNON RIVER FUND MANAGEMENT LLC (US)

Kindhedge funds
Others nearbyNew York, NY, Kirkland, WA

As an employer

Offices in1 country
Private fundshedge 2

Where they work

people there (dot area)number not reportedmain officeHover or tap a dot. Australian and UK companies are placed at their business or registered address, with their staff across the whole country.

Offices

From Form ADV: the main office and the other offices where it does advisory work (at most the 25 largest), with the people doing investment work at each. “About” is worked out: the firm's investment staff less its other offices. Each city links to the other managers there.

City	Country	People
New York, NY (main office)United States	United States	about 4
Kirkland, WAUnited States	United States	1

Map: places from GeoNames (CC BY 4.0), outlines from Natural Earth.

$1.1bn reported value +113.8% vs Q1 2026

37positions

49.6%in top 10

22 new 12 added 3 reduced 13 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	TOWER SEMICONDUCTOR LTD SHS NEW TSEM	TSEM	382,933	$99.8m8.91%	8.91%	Reduced -121.3k	-121,306 -24.1%
2	FLEX LTD ORD FLEX	FLEX	379,834	$61.6m5.49%	5.49%	Added +68.6k	+68,611 22.1%
3	ADVANCED MICRO DEVICES INC COM AMD	AMD	105,751	$61.4m5.48%	5.48%	New
4	INTERDIGITAL INC COM IDCC	IDCC	184,388	$52.2m4.66%	4.66%	Added +130.3k	+130,284 240.8%
5	CELESTICA INC COM CLS	CLS	139,964	$51.1m4.56%	4.56%	Added +86.5k	+86,469 161.6%
6	COHERENT CORP COM COHR	COHR	129,283	$51.0m4.55%	4.55%	Added +41.4k	+41,378 47.1%
7	HINGE HEALTH INC CL A HNGE	HNGE	561,224	$46.6m4.16%	4.16%	Added +144.0k	+144,042 34.5%
8	EXTREME NETWORKS COM EXTR	EXTR	1,424,095	$46.1m4.11%	4.11%	Added +111.0k	+111,034 8.5%
9	KULICKE & SOFFA INDS INC COM KLIC	KLIC	334,781	$44.8m4.00%	4.00%	New
10	TWILIO INC CL A TWLO	TWLO	201,352	$41.5m3.71%	3.71%	New
11	CIENA CORP COM NEW CIEN	CIEN	81,298	$39.9m3.56%	3.56%	New
12	LIVE NATION ENTERTAINMENT IN COM LYV	LYV	216,037	$39.6m3.53%	3.53%	Reduced -78.4k	-78,361 -26.6%
13	RAMBUS INC DEL COM RMBS	RMBS	291,713	$38.7m3.46%	3.46%	Reduced -42.1k	-42,104 -12.6%
14	QUANTINUUM INC CL A COM QNT	QNT	469,355	$38.4m3.42%	3.42%	New
15	UNIVERSAL TECHNICAL INST INC COM UTI	UTI	890,113	$38.1m3.40%	3.40%	New
16	AIRBNB INC COM CL A ABNB	ABNB	247,836	$35.5m3.17%	3.17%	Added +830	+830 0.3%
17	TAKE-TWO INTERACTIVE SOFTWAR COM TTWO	TTWO	138,029	$34.5m3.08%	3.08%	New
18	OUSTER INC COM NEW OUST	OUST	449,264	$28.1m2.51%	2.51%	New
19	PDF SOLUTIONS INC COM PDFS	PDFS	369,776	$26.2m2.34%	2.34%	New
20	NOKIA CORP SPONSORED ADR NOK	NOK	1,906,902	$25.3m2.26%	2.26%	New
21	ALLIENT INC COM ALNT	ALNT	220,237	$22.7m2.02%	2.02%	New
22	ROCKET LAB CORP COM RKLB	RKLB	221,143	$22.5m2.01%	2.01%	New
23	F5 INC COM FFIV	FFIV	51,258	$21.3m1.90%	1.90%	Added +1.1k	+1,062 2.1%
24	DYCOM INDS INC COM DY	DY	39,473	$20.0m1.78%	1.78%	New
25	CIPHER MINING INC COM CIFR	CIFR	667,931	$16.4m1.46%	1.46%	New
26	LIONSGATE STUDIOS CORP COM LION	LION	1,050,445	$16.1m1.44%	1.44%	Added +9.5k	+9,511 0.9%
27	DIGITAL RLTY TR INC COM DLR	DLR	88,764	$15.9m1.42%	1.42%	Added +58.9k	+58,926 197.5%
28	GUIDEWIRE SOFTWARE INC COM GWRE	GWRE	113,230	$13.9m1.24%	1.24%	Added +50.4k	+50,367 80.1%
29	SPHERE ENTERTAINMENT CO CL A SPHR	SPHR	73,878	$12.8m1.14%	1.14%	Added +533	+533 0.7%
30	GLOBAL E ONLINE LTD SHS GLBE	GLBE	353,200	$12.3m1.09%	1.09%	New
31	AMPRIUS TECHNOLOGIES INC COMMON STOCK AMPX	AMPX	838,887	$11.6m1.04%	1.04%	New
32	APPLIED DIGITAL CORP COM NEW APLD	APLD	265,474	$9.9m0.88%	0.88%	New
33	CLOUDFLARE INC CL A COM NET	NET	23,589	$5.8m0.52%	0.52%	New
34	AMKOR TECHNOLOGY INC COM AMKR	AMKR	65,895	$5.7m0.51%	0.51%	New
35	MICRON TECHNOLOGY INC COM MU	MU	4,484	$5.2m0.46%	0.46%	New
36	BABCOCK & WILCOX ENTERPRISES COM BW	BW	333,153	$4.7m0.42%	0.42%	New
37	MAXLINEAR INC COM MXL	MXL	27,377	$3.5m0.31%	0.31%	New

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
MARVELL TECHNOLOGY INC MRVL	MRVL	563,573	$55.8m563.6k shares
AXON ENTERPRISE INC AXON	AXON	47,442	$20.1m47.4k shares
TOAST INC TOST	TOST	732,027	$19.4m732.0k shares
LEGENCE CORP LGN	LGN	337,638	$19.1m337.6k shares
ADTRAN HOLDINGS INC ADTN	ADTN	1,219,976	$15.3m1.2m shares
ENERGY FUELS INC UUUU	UUUU	507,555	$9.3m507.6k shares
AMBARELLA INC AMBA	AMBA	114,940	$5.9m114.9k shares
APPLOVIN CORP APP	APP	14,480	$5.8m14.5k shares
ASTERA LABS INC ALAB	ALAB	47,394	$5.2m47.4k shares
OSI SYSTEMS INC OSIS	OSIS	19,274	$5.1m19.3k shares
EQUINIX INC EQIX	EQIX	5,102	$5.0m5.1k shares
PALANTIR TECHNOLOGIES INC PLTR	PLTR	29,150	$4.3m29.1k shares
SNOWFLAKE INC SNOW	SNOW	26,377	$4.0m26.4k shares