Filed: 5/9/2025ACC: 0001019056-25-000173
📋 What this filing means
GAGNON SECURITIES LLC filed this quarterly 13F‑HR report disclosing 98 equity positions with a total reported market value of $454.54M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
98
Positions
$454.54M
Total AUM (reported)
27.87M
Total Shares
Allocation by class
COM$243.32M53.5%
COM NEW$66.25M14.6%
CL A$63.56M14.0%
COM CL A$43.42M9.6%
SHS$16.67M3.7%
CLASS A COM$12.37M2.7%
SPON ADS NEW$3.19M0.7%
Portfolio Concentration
Top 3$91.76M20.2%
4–10$119.95M26.4%
11–25$152.57M33.6%
Rest$90.26M19.9%
Top 3 weight
20.2%
Top 10 weight
46.6%
Voting Authority Distribution
Total shares with voting rights: 27.87M
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
27.87M
shares
% of voting shares100.0%
Investment Discretion (by position count)
Sole98
Shared0
Other0
Dominant voting typeNone · 100.0% of voting shares
Institutional Holdings98
Rows:
AIR LEASE CORP
SOLEShares731.08K
TypeSH
Market value$35.32M
7.77%
Sole
0.00
Shared
0.00
None
731.08K
ENSIGN GROUP INC
SOLEShares219.13K
TypeSH
Market value$28.36M
6.24%
Sole
0.00
Shared
0.00
None
219.13K
INTUITIVE SURGICAL INC
SOLEShares56.70K
TypeSH
Market value$28.08M
6.18%
Sole
0.00
Shared
0.00
None
56.70K
CAREDX INC
SOLEShares1.42M
TypeSH
Market value$25.23M
5.55%
Sole
0.00
Shared
0.00
None
1.42M
GENEDX HOLDINGS CORP
SOLEShares284.91K
TypeSH
Market value$25.23M
5.55%
Sole
0.00
Shared
0.00
None
284.91K
ENTERPRISE PRODS PARTNERS L P
SOLEShares487.88K
TypeSH
Market value$16.66M
3.66%
Sole
0.00
Shared
0.00
None
487.88K
TREACE MED CONCEPTS INC
SOLEShares1.75M
TypeSH
Market value$14.65M
3.22%
Sole
0.00
Shared
0.00
None
1.75M
POWER SOLUTIONS INTL INC
SOLEShares525.29K
TypeSH
Market value$13.28M
2.92%
Sole
0.00
Shared
0.00
None
525.29K
CHEESECAKE FACTORY INC
SOLEShares257.33K
TypeSH
Market value$12.52M
2.75%
Sole
0.00
Shared
0.00
None
257.33K
FRESHWORKS INC
SOLEShares876.89K
TypeSH
Market value$12.37M
2.72%
Sole
0.00
Shared
0.00
None
876.89K
BIOLIFE SOLUTIONS INC
SOLEShares540.95K
TypeSH
Market value$12.36M
2.72%
Sole
0.00
Shared
0.00
None
540.95K
CARMAX INC
SOLEShares157.35K
TypeSH
Market value$12.26M
2.70%
Sole
0.00
Shared
0.00
None
157.35K
BLACKLINE INC
SOLEShares250.74K
TypeSH
Market value$12.14M
2.67%
Sole
0.00
Shared
0.00
None
250.74K
EXACT SCIENCES CORP
SOLEShares270.66K
TypeSH
Market value$11.72M
2.58%
Sole
0.00
Shared
0.00
None
270.66K
AMERESCO INC
SOLEShares968.53K
TypeSH
Market value$11.70M
2.57%
Sole
0.00
Shared
0.00
None
968.53K
NAVIGATOR HLDGS LTD
SOLEShares851.64K
TypeSH
Market value$11.34M
2.49%
Sole
0.00
Shared
0.00
None
851.64K
EQUINIX INC
SOLEShares13.59K
TypeSH
Market value$11.08M
2.44%
Sole
0.00
Shared
0.00
None
13.59K
FIVE9 INC
SOLEShares379.06K
TypeSH
Market value$10.29M
2.26%
Sole
0.00
Shared
0.00
None
379.06K
PROFOUND MED CORP
SOLEShares1.70M
TypeSH
Market value$9.88M
2.17%
Sole
0.00
Shared
0.00
None
1.70M
CARGURUS INC
SOLEShares326.44K
TypeSH
Market value$9.51M
2.09%
Sole
0.00
Shared
0.00
None
326.44K
VERTEX INC
SOLEShares268.62K
TypeSH
Market value$9.40M
2.07%
Sole
0.00
Shared
0.00
None
268.62K
GENERAC HLDGS INC
SOLEShares64.33K
TypeSH
Market value$8.15M
1.79%
Sole
0.00
Shared
0.00
None
64.33K
PACIRA BIOSCIENCES INC
SOLEShares308.33K
TypeSH
Market value$7.66M
1.69%
Sole
0.00
Shared
0.00
None
308.33K
E2OPEN PARENT HOLDINGS INC
SOLEShares3.82M
TypeSH
Market value$7.64M
1.68%
Sole
0.00
Shared
0.00
None
3.82M
VEREN INC
SOLEShares1.12M
TypeSH
Market value$7.44M
1.64%
Sole
0.00
Shared
0.00
None
1.12M
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
AIR LEASE CORPSOLE | CL A | 731.08K | SH | $35.32M 7.77% | 0.00 | 0.00 | 731.08K |
ENSIGN GROUP INCSOLE | COM | 219.13K | SH | $28.36M 6.24% | 0.00 | 0.00 | 219.13K |
INTUITIVE SURGICAL INCSOLE | COM NEW | 56.70K | SH | $28.08M 6.18% | 0.00 | 0.00 | 56.70K |
CAREDX INCSOLE | COM | 1.42M | SH | $25.23M 5.55% | 0.00 | 0.00 | 1.42M |
GENEDX HOLDINGS CORPSOLE | COM CL A | 284.91K | SH | $25.23M 5.55% | 0.00 | 0.00 | 284.91K |
ENTERPRISE PRODS PARTNERS L PSOLE | COM | 487.88K | SH | $16.66M 3.66% | 0.00 | 0.00 | 487.88K |
TREACE MED CONCEPTS INCSOLE | COM | 1.75M | SH | $14.65M 3.22% | 0.00 | 0.00 | 1.75M |
POWER SOLUTIONS INTL INCSOLE | COM NEW | 525.29K | SH | $13.28M 2.92% | 0.00 | 0.00 | 525.29K |
CHEESECAKE FACTORY INCSOLE | COM | 257.33K | SH | $12.52M 2.75% | 0.00 | 0.00 | 257.33K |
FRESHWORKS INCSOLE | CLASS A COM | 876.89K | SH | $12.37M 2.72% | 0.00 | 0.00 | 876.89K |
BIOLIFE SOLUTIONS INCSOLE | COM NEW | 540.95K | SH | $12.36M 2.72% | 0.00 | 0.00 | 540.95K |
CARMAX INCSOLE | COM | 157.35K | SH | $12.26M 2.70% | 0.00 | 0.00 | 157.35K |
BLACKLINE INCSOLE | COM | 250.74K | SH | $12.14M 2.67% | 0.00 | 0.00 | 250.74K |
EXACT SCIENCES CORPSOLE | COM | 270.66K | SH | $11.72M 2.58% | 0.00 | 0.00 | 270.66K |
AMERESCO INCSOLE | CL A | 968.53K | SH | $11.70M 2.57% | 0.00 | 0.00 | 968.53K |
NAVIGATOR HLDGS LTDSOLE | SHS | 851.64K | SH | $11.34M 2.49% | 0.00 | 0.00 | 851.64K |
EQUINIX INCSOLE | COM | 13.59K | SH | $11.08M 2.44% | 0.00 | 0.00 | 13.59K |
FIVE9 INCSOLE | COM | 379.06K | SH | $10.29M 2.26% | 0.00 | 0.00 | 379.06K |
PROFOUND MED CORPSOLE | COM | 1.70M | SH | $9.88M 2.17% | 0.00 | 0.00 | 1.70M |
CARGURUS INCSOLE | COM CL A | 326.44K | SH | $9.51M 2.09% | 0.00 | 0.00 | 326.44K |
VERTEX INCSOLE | CL A | 268.62K | SH | $9.40M 2.07% | 0.00 | 0.00 | 268.62K |
GENERAC HLDGS INCSOLE | COM | 64.33K | SH | $8.15M 1.79% | 0.00 | 0.00 | 64.33K |
PACIRA BIOSCIENCES INCSOLE | COM | 308.33K | SH | $7.66M 1.69% | 0.00 | 0.00 | 308.33K |
E2OPEN PARENT HOLDINGS INCSOLE | COM CL A | 3.82M | SH | $7.64M 1.68% | 0.00 | 0.00 | 3.82M |
VEREN INCSOLE | COM NEW | 1.12M | SH | $7.44M 1.64% | 0.00 | 0.00 | 1.12M |
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