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GS

Gagnon Securities Portfolio holdings

AUM $519M
1-Year Est. Return 44.91%
This Fund
S&P 500
This Quarter Est. Return
+28.63%
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
$519M
AUM Growth
+$85.6M
Cap. Flow
-$1.22M
Cap. Flow %
-0.24%
Top 10 Hldgs %
47.74%
Holding
89
New
4
Increased
25
Reduced
46
Closed
6

Top Buys

Rank Stock Value
1
WGS icon
GeneDx Holdings
WGS
+$12.6M
2
QDEL icon
QuidelOrtho
QDEL
+$8.28M
3
VERX icon
Vertex
VERX
+$3.66M
4
HNGE
Hinge Health
HNGE
+$3.19M
5
CARG icon
CarGurus
CARG
+$3.1M

Top Sells

Rank Stock Value
1
NVGS icon
Navigator Holdings
NVGS
+$17.1M
2
SGOV icon
iShares 0-3 Month Treasury Bond ETF
SGOV
+$9.33M
3
TMCI icon
Treace Medical Concepts
TMCI
+$5.97M
4
AOSL icon
Alpha and Omega Semiconductor
AOSL
+$3.72M
5
PTEN icon
Patterson-UTI
PTEN
+$3.32M

Sector Composition

Rank Sector Weight
1 Healthcare 46.42%
2 Technology 14.65%
3 Industrials 10.46%
4 Consumer Discretionary 9.78%
5 Real Estate 4.9%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ATNM icon
76
Actinium Pharmaceuticals
ATNM
$38.4M
$178K 0.03%
182,142
-19,158
-10% -$22.1K
PTEN icon
77
Patterson-UTI
PTEN
$4.49B
$160K 0.03%
17,420
-297,226
-94% -$3.32M
RDHL
78
Redhill Biopharma
RDHL
$3.46M
$74.7K 0.01%
88,405
– –
AOSL icon
79
Alpha and Omega Semiconductor
AOSL
$769M
– –
-167,874
Closed -$3.72M
EOG icon
80
EOG Resources
EOG
$75.7B
– –
-1,851
Closed -$268K
GRSD
81
Grandstand Ltd
GRSD
$57M
– –
-109,697
Closed -$426K
NVGS icon
82
Navigator Holdings
NVGS
$1.54B
– –
-886,631
Closed -$17.1M
SGOV icon
83
iShares 0-3 Month Treasury Bond ETF
SGOV
$109B
– –
-92,702
Closed -$9.33M
SVV icon
84
Savers
SVV
$1.39B
– –
-25,148
Closed -$187K
1 2 3
4

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Gagnon Securities's Q2 2026 Portfolio in Review

As of Q2 2026, Gagnon Securities held 89 positions worth $519M, up 20% from $433M the previous quarter. Its ten largest holdings account for 48% of the portfolio.

Gagnon Securities's Q2 2026 filing shows 4 new, 25 increased, 46 reduced and 6 closed positions. Its largest new stake was Warby Parker: 11,381 shares worth $345K. The largest sale was Navigator Holdings, an estimated $17.1M.

By sector, the portfolio is most concentrated in Healthcare at 46% of assets, up from 41% a quarter earlier, followed by Technology and Industrials.

  • Gagnon Securities's largest Q2 2026 buy was Warby Parker: 11,381 shares worth $345K.
  • Gagnon Securities added most to GeneDx Holdings in Q2 2026, an estimated $12.6M increase.
  • Gagnon Securities's biggest Q2 2026 reduction was Treace Medical Concepts, cutting an estimated $5.97M.
  • Gagnon Securities fully exited Navigator Holdings in Q2 2026, selling an estimated $17.1M.
  • Gagnon Securities's ten largest holdings make up 48% of its $519M portfolio in Q2 2026.
  • Gagnon Securities opened 4 new positions and closed 6 in Q2 2026.
  • Gagnon Securities's portfolio value rose 20% quarter-over-quarter to $519M.

Based on Gagnon Securities's 13F filing for Q2 2026, filed 5 Aug 2026.