Filed: 2/13/2026ACC: 0001019056-26-000037
📋 What this filing means
GAGNON SECURITIES LLC filed this quarterly 13F‑HR report disclosing 86 equity positions with a total reported market value of $491.09M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
86
Positions
$491.09M
Total AUM (reported)
25.61M
Total Shares
Allocation by class
COM$302.16M61.5%
CL A$62.42M12.7%
COM CL A$54.31M11.1%
COM NEW$39.40M8.0%
CLASS A COM$15.07M3.1%
SPON ADS NEW$5.64M1.1%
SHS$4.27M0.9%
Portfolio Concentration
Top 3$98.33M20.0%
4–10$138.52M28.2%
11–25$162.67M33.1%
Rest$91.56M18.6%
Top 3 weight
20.0%
Top 10 weight
48.2%
Voting Authority Distribution
Total shares with voting rights: 25.61M
Sole
Full voting authority
0.00
shares
% of voting shares0.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
25.61M
shares
% of voting shares100.0%
Investment Discretion (by position count)
Sole86
Shared0
Other0
Dominant voting typeNone · 100.0% of voting shares
Institutional Holdings86
Rows:
CAREDX INC
SOLEShares1.77M
TypeSH
Market value$33.44M
6.81%
Sole
0.00
Shared
0.00
None
1.77M
GENEDX HOLDINGS CORP
SOLEShares253.53K
TypeSH
Market value$32.97M
6.71%
Sole
0.00
Shared
0.00
None
253.53K
AIR LEASE CORP
SOLEShares496.96K
TypeSH
Market value$31.92M
6.50%
Sole
0.00
Shared
0.00
None
496.96K
ENSIGN GROUP INC
SOLEShares180.55K
TypeSH
Market value$31.45M
6.40%
Sole
0.00
Shared
0.00
None
180.55K
AMERESCO INC
SOLEShares832.88K
TypeSH
Market value$24.40M
4.97%
Sole
0.00
Shared
0.00
None
832.88K
INTUITIVE SURGICAL INC
SOLEShares31.80K
TypeSH
Market value$18.01M
3.67%
Sole
0.00
Shared
0.00
None
31.80K
EXACT SCIENCES CORP
SOLEShares167.41K
TypeSH
Market value$17.00M
3.46%
Sole
0.00
Shared
0.00
None
167.41K
ENTERPRISE PRODS PARTNERS L P
SOLEShares527.60K
TypeSH
Market value$16.91M
3.44%
Sole
0.00
Shared
0.00
None
527.60K
BLACKLINE INC
SOLEShares279.40K
TypeSH
Market value$15.45M
3.15%
Sole
0.00
Shared
0.00
None
279.40K
PROFOUND MED CORP
SOLEShares1.94M
TypeSH
Market value$15.30M
3.12%
Sole
0.00
Shared
0.00
None
1.94M
FRESHWORKS INC
SOLEShares1.23M
TypeSH
Market value$15.07M
3.07%
Sole
0.00
Shared
0.00
None
1.23M
NAVIGATOR HLDGS LTD
SOLEShares861.85K
TypeSH
Market value$14.93M
3.04%
Sole
0.00
Shared
0.00
None
861.85K
EQUINIX INC
SOLEShares17.14K
TypeSH
Market value$13.13M
2.67%
Sole
0.00
Shared
0.00
None
17.14K
PACIRA BIOSCIENCES INC
SOLEShares501.21K
TypeSH
Market value$12.97M
2.64%
Sole
0.00
Shared
0.00
None
501.21K
BIOLIFE SOLUTIONS INC
SOLEShares534.36K
TypeSH
Market value$12.92M
2.63%
Sole
0.00
Shared
0.00
None
534.36K
FIVE9 INC
SOLEShares625.73K
TypeSH
Market value$12.55M
2.55%
Sole
0.00
Shared
0.00
None
625.73K
CARMAX INC
SOLEShares320.08K
TypeSH
Market value$12.37M
2.52%
Sole
0.00
Shared
0.00
None
320.08K
CHEESECAKE FACTORY INC
SOLEShares226.59K
TypeSH
Market value$11.44M
2.33%
Sole
0.00
Shared
0.00
None
226.59K
CARGURUS INC
SOLEShares270.82K
TypeSH
Market value$10.39M
2.11%
Sole
0.00
Shared
0.00
None
270.82K
GENERAC HLDGS INC
SOLEShares75.59K
TypeSH
Market value$10.31M
2.10%
Sole
0.00
Shared
0.00
None
75.59K
AMPLITUDE INC
SOLEShares698.87K
TypeSH
Market value$8.09M
1.65%
Sole
0.00
Shared
0.00
None
698.87K
MarineMax Inc
SOLEShares322.05K
TypeSH
Market value$7.80M
1.59%
Sole
0.00
Shared
0.00
None
322.05K
TREACE MED CONCEPTS INC
SOLEShares3.11M
TypeSH
Market value$7.62M
1.55%
Sole
0.00
Shared
0.00
None
3.11M
VERTEX INC
SOLEShares364.64K
TypeSH
Market value$7.28M
1.48%
Sole
0.00
Shared
0.00
None
364.64K
CHIPOTLE MEXICAN GRILL INC
SOLEShares156.97K
TypeSH
Market value$5.81M
1.18%
Sole
0.00
Shared
0.00
None
156.97K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
CAREDX INCSOLE | COM | 1.77M | SH | $33.44M 6.81% | 0.00 | 0.00 | 1.77M |
GENEDX HOLDINGS CORPSOLE | COM CL A | 253.53K | SH | $32.97M 6.71% | 0.00 | 0.00 | 253.53K |
AIR LEASE CORPSOLE | CL A | 496.96K | SH | $31.92M 6.50% | 0.00 | 0.00 | 496.96K |
ENSIGN GROUP INCSOLE | COM | 180.55K | SH | $31.45M 6.40% | 0.00 | 0.00 | 180.55K |
AMERESCO INCSOLE | CL A | 832.88K | SH | $24.40M 4.97% | 0.00 | 0.00 | 832.88K |
INTUITIVE SURGICAL INCSOLE | COM NEW | 31.80K | SH | $18.01M 3.67% | 0.00 | 0.00 | 31.80K |
EXACT SCIENCES CORPSOLE | COM | 167.41K | SH | $17.00M 3.46% | 0.00 | 0.00 | 167.41K |
ENTERPRISE PRODS PARTNERS L PSOLE | COM | 527.60K | SH | $16.91M 3.44% | 0.00 | 0.00 | 527.60K |
BLACKLINE INCSOLE | COM | 279.40K | SH | $15.45M 3.15% | 0.00 | 0.00 | 279.40K |
PROFOUND MED CORPSOLE | COM | 1.94M | SH | $15.30M 3.12% | 0.00 | 0.00 | 1.94M |
FRESHWORKS INCSOLE | CLASS A COM | 1.23M | SH | $15.07M 3.07% | 0.00 | 0.00 | 1.23M |
NAVIGATOR HLDGS LTDSOLE | COM | 861.85K | SH | $14.93M 3.04% | 0.00 | 0.00 | 861.85K |
EQUINIX INCSOLE | COM | 17.14K | SH | $13.13M 2.67% | 0.00 | 0.00 | 17.14K |
PACIRA BIOSCIENCES INCSOLE | COM | 501.21K | SH | $12.97M 2.64% | 0.00 | 0.00 | 501.21K |
BIOLIFE SOLUTIONS INCSOLE | COM NEW | 534.36K | SH | $12.92M 2.63% | 0.00 | 0.00 | 534.36K |
FIVE9 INCSOLE | COM | 625.73K | SH | $12.55M 2.55% | 0.00 | 0.00 | 625.73K |
CARMAX INCSOLE | COM | 320.08K | SH | $12.37M 2.52% | 0.00 | 0.00 | 320.08K |
CHEESECAKE FACTORY INCSOLE | COM | 226.59K | SH | $11.44M 2.33% | 0.00 | 0.00 | 226.59K |
CARGURUS INCSOLE | COM CL A | 270.82K | SH | $10.39M 2.11% | 0.00 | 0.00 | 270.82K |
GENERAC HLDGS INCSOLE | COM | 75.59K | SH | $10.31M 2.10% | 0.00 | 0.00 | 75.59K |
AMPLITUDE INCSOLE | COM CL A | 698.87K | SH | $8.09M 1.65% | 0.00 | 0.00 | 698.87K |
MarineMax IncSOLE | COM | 322.05K | SH | $7.80M 1.59% | 0.00 | 0.00 | 322.05K |
TREACE MED CONCEPTS INCSOLE | COM | 3.11M | SH | $7.62M 1.55% | 0.00 | 0.00 | 3.11M |
VERTEX INCSOLE | COM | 364.64K | SH | $7.28M 1.48% | 0.00 | 0.00 | 364.64K |
CHIPOTLE MEXICAN GRILL INCSOLE | COM | 156.97K | SH | $5.81M 1.18% | 0.00 | 0.00 | 156.97K |
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