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Gagnon Securities Portfolio holdings

AUM $519M
1-Year Est. Return 44.91%
This Fund
S&P 500
This Quarter Est. Return
+7.62%
1 Year Est. Return
+44.91%
3 Year Est. Return
+129.38%
5 Year Est. Return
+108.07%
10 Year Est. Return
+1,389.15%
AUM
$491M
AUM Growth
-$7.42M
Cap. Flow
-$15.8M
Cap. Flow %
-3.21%
Top 10 Hldgs %
48.23%
Holding
88
New
2
Increased
33
Reduced
40
Closed
2

Top Buys

Rank Stock Value
1
FIVN icon
FIVE9
FIVN
+$6.93M
2
KMX icon
CarMax
KMX
+$3.78M
3
TMCI icon
Treace Medical Concepts
TMCI
+$3.7M
4
AMPL icon
Amplitude
AMPL
+$1.98M
5
HZO icon
MarineMax
HZO
+$1.5M

Top Sells

Rank Stock Value
1
FRSH icon
Freshworks
FRSH
+$7.51M
2
AL
Air Lease Corp
AL
+$6.94M
3
PSIX
Power Solutions International
PSIX
+$6.36M
4
ISRG icon
Intuitive Surgical
ISRG
+$6.16M
5
ASPN icon
Aspen Aerogels
ASPN
+$3.21M

Sector Composition

Rank Sector Weight
1 Healthcare 42.13%
2 Technology 16.31%
3 Industrials 15.37%
4 Consumer Discretionary 10.93%
5 Energy 7.24%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
GOOGL icon
51
Alphabet (Google) Class A
GOOGL
$4.43T
$800K 0.16%
2,556
– –
DVN icon
52
Devon Energy
DVN
$48.5B
$700K 0.14%
19,111
-1,167
-6% -$40.7K
GOOG icon
53
Alphabet (Google) Class C
GOOG
$4.4T
$608K 0.12%
1,939
+7
+0.4% +$2K
SHOP icon
54
Shopify
SHOP
$187B
$593K 0.12%
3,684
-1,661
-31% -$267K
GRSD
55
Grandstand Limited Ordinary Shares
GRSD
$70.8M
$576K 0.12%
105,569
+82,507
+358% +$525K
TECH icon
56
Bio-Techne
TECH
$11.2B
$565K 0.12%
9,614
– –
MTSI icon
57
MACOM Technology Solutions
MTSI
$20.1B
$564K 0.11%
3,295
+153
+5% +$24.3K
META icon
58
Meta Platforms (Facebook)
META
$1.5T
$554K 0.11%
839
– –
MRVL icon
59
Marvell Technology
MRVL
$189B
$538K 0.11%
6,327
– –
WEAV icon
60
Weave Communications
WEAV
$547M
$535K 0.11%
70,489
+24,946
+55% +$166K
SBUX icon
61
Starbucks
SBUX
$121B
$463K 0.09%
5,502
-136
-2% -$11.5K
HIMX
62
Himax Technologies
HIMX
$2.33B
$442K 0.09%
53,946
-542
-1% -$4.58K
VIAV icon
63
Viavi Solutions
VIAV
$9.6B
$428K 0.09%
23,992
– –
APPS icon
64
Digital Turbine
APPS
$1.59B
$409K 0.08%
81,839
– –
MRK icon
65
Merck
MRK
$317B
$407K 0.08%
3,867
-171
-4% -$16.1K
PYPL icon
66
PayPal
PYPL
$49.6B
$385K 0.08%
6,596
+15
+0.2% +$974
LTH icon
67
Life Time Group Holdings
LTH
$10.1B
$360K 0.07%
13,538
– –
ONTO icon
68
Onto Innovation
ONTO
$14.3B
$354K 0.07%
2,242
– –
CGNX icon
69
Cognex
CGNX
$11.8B
$352K 0.07%
9,772
– –
ETSY icon
70
Etsy
ETSY
$8.15B
$316K 0.06%
5,692
+722
+15% +$44.1K
CVLT icon
71
Commault Systems
CVLT
$5.52B
$308K 0.06%
2,453
+35
+1% +$4.92K
MU icon
72
Micron Technology
MU
$1.01T
$307K 0.06%
1,077
-1,861
-63% -$427K
RNTX
73
Rein Therapeutics
RNTX
$61.1M
$279K 0.06%
240,220
+11,528
+5% +$15.9K
ATNM icon
74
Actinium Pharmaceuticals
ATNM
$23.5M
$274K 0.06%
201,807
-24,450
-11% -$35.7K
RMBS icon
75
Rambus
RMBS
$10.6B
$249K 0.05%
2,711
– –
1 2
3
4

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CFM
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Gagnon Securities's Q4 2025 Portfolio in Review

As of Q4 2025, Gagnon Securities held 88 positions worth $491M, down 1.5% from $499M the previous quarter. Its ten largest holdings account for 48% of the portfolio.

Gagnon Securities withdrew a net $15.8M in Q4 2025, closing 2 positions and reducing 40 holdings. Its most notable exit was Power Solutions International, an estimated $6.36M position sold in full.

By sector, the portfolio is most concentrated in Healthcare at 42% of assets, up from 37% a quarter earlier, followed by Technology and Industrials.

Against the trend, Gagnon Securities opened a new position in Blackstone worth $227K.

  • Gagnon Securities's largest Q4 2025 buy was Blackstone: 1,475 shares worth $227K.
  • Gagnon Securities added most to FIVE9 in Q4 2025, an estimated $6.93M increase.
  • Gagnon Securities's biggest Q4 2025 reduction was Freshworks, cutting an estimated $7.51M.
  • Gagnon Securities fully exited Power Solutions International in Q4 2025, selling an estimated $6.36M.
  • Gagnon Securities's ten largest holdings make up 48% of its $491M portfolio in Q4 2025.
  • Gagnon Securities opened 2 new positions and closed 2 in Q4 2025.
  • Gagnon Securities's portfolio value fell 1.5% quarter-over-quarter to $491M.

Based on Gagnon Securities's 13F filing for Q4 2025, filed 13 Feb 2026.