Granahan Investment Management, LLC

Registered adviser

CIK

1026710

Location

WALTHAM, MA

Portfolio Value

Mid $2,806,359,197

Diversification

Diversified

Filing Date

Global Rank

#1,303 / 8,825 ▲ 133

Top Industry

Semiconductors 10.4%

Period ended 4 months ago

Filed Aug 14, 2026 · 3mo

26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Nov 1, 2026

Form ADV adviser

CRD 107745

Roster of Nov 1, 2026

Regulatory AUM

$2,362,974,589

Main clients

Diversified

LEI

549300YQRFF9XBLWGF31

Private funds on Schedule D 7.B.(1)

As filed Mar 26, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$2,991,784 gross assets in 1 fund Other private funds $2,991,784 (1)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Nov 2026	$2,362,974,589	Diversified
Apr 2025 to Mar 2026	$2,451,572,049	Diversified
Apr 2024 to Mar 2025	$3,098,868,810	Diversified
May 2023 to Mar 2024	$3,326,814,170	Diversified
Apr 2023	$3,326,814,170	Diversified
Apr 2022 to Mar 2023	$4,968,486,424	Diversified

3 earlier changes not shown.

Schedule 13D/13G stakes

Stakes of 5% or more disclosed on Schedule 13D or 13G, each on the filer's latest filing for the security. These are event-dated stakes, not the quarter-end 13F portfolio below.

Company	Schedule	Event date	Filed	Shares	% of class	Change	Status
KRUS Kura Sushi USA, Inc.	13G/A	Jun 30, 2026	3mo	801,969	7.19%	+130,957 since Sep 30, 2025	Current
OWLT Owlet, Inc.	13G	Jun 30, 2026	3mo	1,595,419	5.5%	—	Current
KRNT Kornit Digital Ltd.	13G	Dec 31, 2025	9mo	2,569,663	5.67%	+336,113 since Dec 31, 2023	Current
PRCH Porch Group, Inc.	13G/A	Nov 28, 2025	11mo	11,593,186	11%	+1,956,494 since Sep 30, 2025	Current
INDI indie Semiconductor, Inc.	13G/A	Sep 30, 2025	12mo	17,474,795	8.8%	-2,109,593 since May 31, 2025	Current

A 13D or 13G stays in force until its filer amends it and no amendment is due without a material change, so a stake with no filing in 24 months reads unconfirmed, never sold. An amendment reporting under 5% ends the filer's duty to amend, not necessarily the holding. Shares are restated onto today's split basis. Show 12 exited, below-5% or retired stakes

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Diversified active

Top 10 weight 34.0%, 50.9 effective positions, active share 92.1% against the Russell 2000 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests

Turnover

Medium turnover

74.3% over the last four quarters (30% to under 100%)

Horizon

Horizon unknown

The value-weighted holding period is at least 11.6 quarters, but 14.0% of the book was already held when coverage starts

Closest benchmark: the Russell 2000 as of 2026-06-30, active share 92.1%; sector active share 28.4% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

150 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

6.6%

+2.1 pts

Top 5

21.7%

+1.3 pts

Top 10

34.0%

+0.3 pts

HHI

196

Diversified+19

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	30.1%	$844,717,474	40
Industrials	25.4%	$711,985,522	34
Healthcare	17.2%	$483,702,233	44
Financial Services	14.5%	$405,876,336	8
Consumer Cyclical	6.9%	$194,213,954	11
Communication Services	4.1%	$114,694,687	5
Basic Materials	1.1%	$30,747,719	3
Consumer Defensive	0.7%	$18,926,894	4
Energy	0.1%	$1,494,378	1

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
GENI	Genius Sports Ltd	+1,640,568	7,024,330	$42,567,439
QXO	QXO, Inc.	+818,116	2,327,662	$40,221,999
ZETA	Zeta Global Holdings Corp.	+733,725	1,758,212	$34,601,612
MGNI	Magnite, Inc.	+529,798	3,083,211	$58,519,344
TSHA	Taysha Gene Therapies, Inc.	+421,936	1,305,177	$8,888,255
OWLT	Owlet, Inc.	+408,764	1,595,419	$9,157,705
ALKT	Alkami Technology, Inc.	+374,913	627,781	$11,375,391
BBOT	BridgeBio Oncology Therapeutics, Inc.	+327,486	558,526	$4,255,968
TOST	Toast, Inc.	+286,684	685,751	$19,077,592
SG	Sweetgreen, Inc.	+275,997	559,643	$4,930,454
FWRG	First Watch Restaurant Group, Inc.	+275,815	1,363,852	$17,580,052
GRAL	GRAIL, Inc.	+271,548	321,176	$21,926,685
SIMO	Silicon Motion Technology CORP	+250,500	445,752	$148,582,514
RGEN	Repligen Corp	+245,318	332,271	$45,335,055
DSGX	Descartes Systems Group Inc	+242,004	297,257	$20,582,074
NTSK	Netskope Inc	+239,482	607,060	$6,641,236
KRUS	Kura Sushi USA, Inc.	+194,052	801,969	$46,161,335
SIBN	SI-BONE, Inc.	+192,085	1,931,182	$31,516,890
KIDS	Orthopediatrics Corp	+189,223	1,085,964	$20,774,491
CWST	Casella Waste Systems Inc	+186,027	436,289	$42,306,944
NTNX	Nutanix, Inc.	+180,534	336,852	$17,165,977
CYRX	Cryoport, Inc.	+172,781	403,919	$6,341,528
FROG	JFrog Ltd	+169,580	299,683	$27,235,191
SNDX	Syndax Pharmaceuticals Inc	+140,667	446,988	$9,771,157
CHYM	Chime Financial, Inc.	+137,229	583,381	$11,947,642
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
APPS	Digital Turbine, Inc.	−3,618,151	3,494,200	$45,075,180
ENVX	Enovix Corp	−1,509,686	79,900	$484,993
ACHR	Archer Aviation Inc.	−1,254,339	226,407	$1,070,905
INDI	indie Semiconductor, Inc.	−863,947	19,419,892	$87,195,315
AMRC	Ameresco, Inc.	−606,451	23,622	$651,967
AIP	Arteris, Inc.	−552,662	160,415	$7,794,564
YSS	York Space Systems Inc.	−499,420	468,190	$11,526,837
ALHC	Alignment Healthcare, Inc.	−425,527	354,973	$8,451,907
PRCH	Porch Group, Inc.	−281,327	12,393,660	$186,400,646
FPS	Forgent Power Solutions, Inc.	−263,476	1,807,608	$100,972,982
UTI	Universal Technical Institute Inc	−233,684	8,709	$372,483
RMBS	Rambus Inc	−214,001	66,245	$8,793,361
LIND	Lindblad Expeditions Holdings, Inc.	−211,507	173,876	$4,910,258
—		−200,627	521,430	$14,725,183
LPTH	Lightpath Technologies Inc	−190,576	563,045	$9,205,785
UMAC	Unusual Machines, Inc.	−187,126	829,328	$18,494,014
VKTX	Viking Therapeutics, Inc.	−184,148	148,044	$5,775,196
NPKI	NPK International Inc.	−180,434	221,224	$3,519,673
KRNT	Kornit Digital Ltd.	−179,073	2,119,398	$34,440,217
ELVA	Electrovaya Inc.	−152,995	47,200	$495,600
EYPT	EyePoint, Inc.	−147,721	149,387	$2,136,234
ARLO	Arlo Technologies, Inc.	−144,440	1,025,050	$13,817,674
CRS	Carpenter Technology Corp	−142,488	96,981	$59,821,760
LTH	Life Time Group Holdings, Inc.	−116,896	1,083,587	$44,253,693
MOD	Modine Manufacturing Co	−114,014	263,572	$70,378,995
No positions match the current search.

New Positions

Positions the filer opened this quarter

22 positions

Ticker	Company	Shares	Value
TWST	Twist Bioscience Corp	314,882	$32,395,060
QNT	Quantinuum Inc.	233,540	$19,089,559
ARXS	Arxis, Inc.	241,183	$11,128,183
DYN	Dyne Therapeutics, Inc.	338,565	$7,519,528
ATEX	Anterix Inc.	72,121	$7,424,135
SYRE	Spyre Therapeutics, Inc.	82,991	$7,367,940
GWRE	Guidewire Software, Inc.	58,689	$7,221,681
KRMN	Karman Holdings Inc.	144,544	$7,215,636
EVLV	Evolv Technologies Holdings, Inc.	1,235,954	$7,168,533
FOUR	Shift4 Payments, Inc.	132,151	$6,427,824
GRBK	Green Brick Partners, Inc.	75,201	$6,019,088
MAMA	Mama's Creations, Inc.	330,072	$5,891,785
AEIS	Advanced Energy Industries Inc	15,412	$5,746,672
ORKA	Oruka Therapeutics, Inc.	51,038	$4,857,286
TRAX	First Tracks Biotherapeutics, Inc.	238,304	$4,794,676
FRPT	Freshpet, Inc.	62,709	$3,707,356
SILC	Silicom Ltd.	68,454	$3,281,684
LMRI	Lumexa Imaging Holdings, Inc.	263,156	$2,968,399
SPIR	Spire Global, Inc.	159,131	$2,959,836
SRTA	Strata Critical Medical, Inc.	503,005	$2,650,836
ENPH	Enphase Energy, Inc.	53,750	$2,646,650
TRVG	trivago N.V.	362,513	$1,982,946
No positions match the current search.

Sold Out

Positions the filer fully exited

21 positions

Ticker	Company	Shares	Value
FIX	Comfort Systems USA Inc	26,027	$35,890,972
SMTC	Semtech Corp	370,642	$28,498,663
SRAD	Sportradar Group AG	1,439,659	$24,099,891
STRL	Sterling Infrastructure, Inc.	34,332	$13,982,393
COMP	Compass, Inc.	1,885,312	$13,781,630
STEP	StepStone Group Inc.	211,626	$10,098,792
PHR	Phreesia, Inc.	987,607	$8,276,146
CSGP	Costar Group, Inc.	161,047	$6,496,635
LIFE	Ethos Technologies Inc.	580,595	$6,485,246
WGS	GeneDx Holdings Corp.	96,605	$6,203,973
FN	Fabrinet	10,431	$5,439,975
CRDO	Credo Technology Group Holding Ltd	56,099	$5,266,013
TSEM	Tower Semiconductor Ltd	29,902	$5,247,202
—		43,003	$4,405,657
IONQ	IonQ, Inc.	146,012	$4,209,525
RVMD	Revolution Medicines, Inc.	42,573	$4,140,224
—		114,825	$3,844,341
NEOG	Neogen Corp	250,026	$2,322,741
RCAT	Red Cat Holdings, Inc.	109,603	$1,434,703
AZTA	Azenta, Inc.	40,996	$866,245
TGEN	Tecogen Inc.	88,496	$226,549
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

150 tracked positions · $2,806,359,197 total · filing declares 150 positions · $2,806,359,268 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Technology

Showing 1–50 of 150 positions by value · page 1 of 3

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
PRCH	Porch Group, Inc. Financial Services	Reduced	12,393,660	-281,327	$186,400,646	+105.1%	23	$7.63	6.64%
SIMO	Silicon Motion Technology CORP Technology	Added	445,752	+250,500	$148,582,514	+577.7%	5	$159.87	5.29%
FPS	Forgent Power Solutions, Inc. Industrials	Reduced	1,807,608	-263,476	$100,972,982	+66.6%	2	$33.28	3.60%
INDI	indie Semiconductor, Inc. Technology	Reduced	19,419,892	-863,947	$87,195,315	+33.5%	16	$6.08	3.11%
VCTR	Victory Capital Holdings, Inc. Financial Services	Reduced	1,015,343	-71,972	$85,349,732	+19.9%	26+	before history	3.04%
FTAI	FTAI Aviation Ltd. Industrials	Reduced	293,722	-46,595	$79,460,612	−4.7%	7	$144.65	2.83%
MRX	Marex Group Ltd Financial Services	Added	1,254,283	+30,533	$76,448,548	+40.1%	9	$26.52	2.72%
MOD	Modine Manufacturing Co Industrials	Reduced	263,572	-114,014	$70,378,995	−14.0%	11	$132.92	2.51%
CRS	Carpenter Technology Corp Industrials	Reduced	96,981	-142,488	$59,821,760	−36.6%	10	$99.83	2.13%
NXT	Nextpower Inc. Technology	Added	495,938	+71,504	$59,086,053	+15.5%	8	$71.75	2.11%
MGNI	Magnite, Inc. Communication Services	Added	3,083,211	+529,798	$58,519,344	+92.9%	25	$14.85	2.09%
AXON	Axon Enterprise, Inc. Industrials	Added	96,829	+6,137	$54,283,305	+40.9%	26+	before history	1.93%
ONTO	Onto Innovation Inc. Technology	Reduced	141,568	-57,126	$53,576,409	+31.5%	26+	before history	1.91%
TTMI	Ttm Technologies Inc Technology	Reduced	269,330	-58,104	$50,370,096	+57.9%	3	$72.58	1.79%
LGND	Ligand Pharmaceuticals Inc Healthcare	Added	147,231	+123,066	$46,538,246	+864.6%	4	$221.65	1.66%
KRUS	Kura Sushi USA, Inc. Consumer Cyclical	Added	801,969	+194,052	$46,161,335	+8.8%	9	$70.13	1.64%
RGEN	Repligen Corp Healthcare	Added	332,271	+245,318	$45,335,055	+342.5%	8	$127.30	1.62%
APPS	Digital Turbine, Inc. Technology	Reduced	3,494,200	-3,618,151	$45,075,180	+120.1%	6	$4.54	1.61%
LTH	Life Time Group Holdings, Inc. Consumer Cyclical	Reduced	1,083,587	-116,896	$44,253,693	+36.8%	13	$18.29	1.58%
GENI	Genius Sports Ltd Communication Services	Added	7,024,330	+1,640,568	$42,567,439	+78.5%	21	$7.46	1.52%
CWST	Casella Waste Systems Inc Industrials	Added	436,289	+186,027	$42,306,944	+113.1%	26+	before history	1.51%
QXO	QXO, Inc. Industrials	Added	2,327,662	+818,116	$40,221,999	+37.2%	8	$22.74	1.43%
GNRC	Generac Holdings Inc. Industrials	Added	122,872	+109,659	$35,978,150	+1294.0%	2	$244.18	1.28%
ZETA	Zeta Global Holdings Corp. Technology	Added	1,758,212	+733,725	$34,601,612	+112.2%	21	unpriced	1.23%
KRNT	Kornit Digital Ltd. Industrials	Reduced	2,119,398	-179,073	$34,440,217	+2.2%	26+	before history	1.23%
TWST	Twist Bioscience Corp Healthcare	NEW	314,882	NEW	$32,395,060	NEW	1	$65.07	1.15%
DAVE	Dave Inc. Technology	Added	84,897	+19,435	$31,631,773	+177.6%	4	$209.71	1.13%
SIBN	SI-BONE, Inc. Healthcare	Added	1,931,182	+192,085	$31,516,890	+43.5%	23	$17.40	1.12%
FROG	JFrog Ltd Technology	Added	299,683	+169,580	$27,235,191	+346.1%	13	$49.30	0.97%
FIGR	Figure Technology Solutions, Inc. Financial Services	Reduced	842,306	-93,094	$25,867,217	−18.5%	4	unpriced	0.92%
CLBT	Cellebrite DI Ltd. Technology	Reduced	1,661,163	-78,481	$24,252,979	+1.2%	10	$15.93	0.86%
GTES	Gates Industrial Corp Ltd. Industrials	Added	843,441	+68,837	$23,591,044	+34.7%	9	$19.31	0.84%
GLBE	Global-E Online Ltd. Consumer Cyclical	Added	633,327	+86,358	$21,995,446	+30.4%	5	$33.54	0.78%
GRAL	GRAIL, Inc. Healthcare	Added	321,176	+271,548	$21,926,685	+754.9%	3	$63.14	0.78%
RBC	RBC Bearings INC Industrials	Reduced	34,017	-4,476	$21,908,989	+4.8%	26+	before history	0.78%
CAVA	Cava Group, Inc. Consumer Cyclical	Reduced	265,411	-38,480	$20,829,455	−15.3%	3	$59.89	0.74%
KIDS	Orthopediatrics Corp Healthcare	Added	1,085,964	+189,223	$20,774,491	+46.0%	26+	before history	0.74%
MTRN	MATERION Corp Basic Materials	Reduced	69,793	-74,683	$20,755,740	−0.7%	26+	before history	0.74%
DSGX	Descartes Systems Group Inc Technology	Added	297,257	+242,004	$20,582,074	+420.6%	12	$75.50	0.73%
QNT	Quantinuum Inc. Technology	NEW	233,540	NEW	$19,089,559	NEW	1	unpriced	0.68%
TOST	Toast, Inc. Technology	Added	685,751	+286,684	$19,077,592	+80.3%	17	$21.90	0.68%
TCBI	Texas Capital Bancshares Inc Financial Services	Added	184,087	+12,720	$19,008,823	+16.9%	26+	before history	0.68%
SN	SharkNinja, Inc. Consumer Cyclical	Reduced	124,271	-7,467	$18,922,745	+35.6%	9	$93.85	0.67%
CELC	Celcuity Inc. Healthcare	Added	179,053	+90,220	$18,732,524	+84.7%	4	$87.59	0.67%
UMAC	Unusual Machines, Inc. Technology	Reduced	829,328	-187,126	$18,494,014	+46.7%	3	$11.73	0.66%
FWRG	First Watch Restaurant Group, Inc. Consumer Cyclical	Added	1,363,852	+275,815	$17,580,052	+54.2%	19	$16.95	0.63%
NTNX	Nutanix, Inc. Technology	Added	336,852	+180,534	$17,165,977	+188.9%	26+	before history	0.61%
LASR	Nlight, Inc. Technology	Added	236,991	+51,720	$16,499,313	+56.2%	2	$57.59	0.59%
VECO	Veeco Instruments Inc Technology	Added	204,837	+12,106	$15,526,644	+137.9%	21	$23.67	0.55%
STOK	Stoke Therapeutics, Inc. Healthcare	Added	461,608	+126,022	$15,103,813	+38.2%	17	$23.12	0.54%

Showing the top 50 of 150 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.