Filed: 10/31/2025ACC: 0000945621-25-001004
📋 What this filing means
SECTOR GAMMA AS filed this quarterly 13F‑HR report disclosing 41 equity positions with a total reported market value of $403.32M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
41
Positions
$403.32M
Total AUM (reported)
8.55M
Total Shares
Allocation by class
COM$324.22M80.4%
SHS$33.27M8.2%
COMMON STOCK$16.80M4.2%
COM SHS$11.78M2.9%
CL A$6.40M1.6%
SPONSORED ADR$4.84M1.2%
COM NEW$3.27M0.8%
Portfolio Concentration
Top 3$87.87M21.8%
4–10$127.17M31.5%
11–25$122.52M30.4%
Rest$65.76M16.3%
Top 3 weight
21.8%
Top 10 weight
53.3%
Voting Authority Distribution
Total shares with voting rights: 8.55M
Sole
Full voting authority
8.55M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole41
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings41
Rows:
PFIZER INC
SOLEShares1.25M
TypeSH
Market value$31.90M
7.91%
Sole
1.25M
Shared
0.00
None
0.00
MEDTRONIC PLC
SOLEShares303.44K
TypeSH
Market value$28.90M
7.17%
Sole
303.44K
Shared
0.00
None
0.00
MERCK & CO INC
SOLEShares322.50K
TypeSH
Market value$27.07M
6.71%
Sole
322.50K
Shared
0.00
None
0.00
BRISTOL-MYERS SQUIBB CO
SOLEShares581.27K
TypeSH
Market value$26.22M
6.50%
Sole
581.27K
Shared
0.00
None
0.00
BECTON DICKINSON & CO
SOLEShares108.83K
TypeSH
Market value$20.37M
5.05%
Sole
108.83K
Shared
0.00
None
0.00
IONIS PHARMACEUTICALS INC
SOLEShares270.96K
TypeSH
Market value$17.73M
4.40%
Sole
270.96K
Shared
0.00
None
0.00
INCYTE CORP
SOLEShares205.11K
TypeSH
Market value$17.40M
4.31%
Sole
205.11K
Shared
0.00
None
0.00
AMGEN INC
SOLEShares61.46K
TypeSH
Market value$17.34M
4.30%
Sole
61.46K
Shared
0.00
None
0.00
GILEAD SCIENCES INC
SOLEShares147.24K
TypeSH
Market value$16.34M
4.05%
Sole
147.24K
Shared
0.00
None
0.00
CVS HEALTH CORP
SOLEShares156.20K
TypeSH
Market value$11.78M
2.92%
Sole
156.20K
Shared
0.00
None
0.00
ZIMMER BIOMET HOLDINGS INC
SOLEShares113.48K
TypeSH
Market value$11.18M
2.77%
Sole
113.48K
Shared
0.00
None
0.00
BIOGEN INC
SOLEShares75.47K
TypeSH
Market value$10.57M
2.62%
Sole
75.47K
Shared
0.00
None
0.00
BIOMARIN PHARMACEUTICAL INC
SOLEShares175.85K
TypeSH
Market value$9.52M
2.36%
Sole
175.85K
Shared
0.00
None
0.00
CARDINAL HEALTH INC
SOLEShares59.54K
TypeSH
Market value$9.34M
2.32%
Sole
59.54K
Shared
0.00
None
0.00
THERMO FISHER SCIENTIFIC INC
SOLEShares18.44K
TypeSH
Market value$8.95M
2.22%
Sole
18.44K
Shared
0.00
None
0.00
BAXTER INTL INC
SOLEShares381.55K
TypeSH
Market value$8.69M
2.15%
Sole
381.55K
Shared
0.00
None
0.00
GE HEALTHCARE TECHNOLOGIES I
SOLEShares111.39K
TypeSH
Market value$8.37M
2.07%
Sole
111.39K
Shared
0.00
None
0.00
BRUKER CORP
SOLEShares250.91K
TypeSH
Market value$8.15M
2.02%
Sole
250.91K
Shared
0.00
None
0.00
CENTENE CORP DEL
SOLEShares213.21K
TypeSH
Market value$7.61M
1.89%
Sole
213.21K
Shared
0.00
None
0.00
LABCORP HOLDINGS INC
SOLEShares25.97K
TypeSH
Market value$7.45M
1.85%
Sole
25.97K
Shared
0.00
None
0.00
PTC THERAPEUTICS INC
SOLEShares118.11K
TypeSH
Market value$7.25M
1.80%
Sole
118.11K
Shared
0.00
None
0.00
VIATRIS INC
SOLEShares668.85K
TypeSH
Market value$6.62M
1.64%
Sole
668.85K
Shared
0.00
None
0.00
BIO RAD LABS INC
SOLEShares22.83K
TypeSH
Market value$6.40M
1.59%
Sole
22.83K
Shared
0.00
None
0.00
HUMANA INC
SOLEShares23.94K
TypeSH
Market value$6.23M
1.54%
Sole
23.94K
Shared
0.00
None
0.00
ELANCO ANIMAL HEALTH INC
SOLEShares307.27K
TypeSH
Market value$6.19M
1.53%
Sole
307.27K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
PFIZER INCSOLE | COM | 1.25M | SH | $31.90M 7.91% | 1.25M | 0.00 | 0.00 |
MEDTRONIC PLCSOLE | SHS | 303.44K | SH | $28.90M 7.17% | 303.44K | 0.00 | 0.00 |
MERCK & CO INCSOLE | COM | 322.50K | SH | $27.07M 6.71% | 322.50K | 0.00 | 0.00 |
BRISTOL-MYERS SQUIBB COSOLE | COM | 581.27K | SH | $26.22M 6.50% | 581.27K | 0.00 | 0.00 |
BECTON DICKINSON & COSOLE | COM | 108.83K | SH | $20.37M 5.05% | 108.83K | 0.00 | 0.00 |
IONIS PHARMACEUTICALS INCSOLE | COM | 270.96K | SH | $17.73M 4.40% | 270.96K | 0.00 | 0.00 |
INCYTE CORPSOLE | COM | 205.11K | SH | $17.40M 4.31% | 205.11K | 0.00 | 0.00 |
AMGEN INCSOLE | COM | 61.46K | SH | $17.34M 4.30% | 61.46K | 0.00 | 0.00 |
GILEAD SCIENCES INCSOLE | COM | 147.24K | SH | $16.34M 4.05% | 147.24K | 0.00 | 0.00 |
CVS HEALTH CORPSOLE | COM | 156.20K | SH | $11.78M 2.92% | 156.20K | 0.00 | 0.00 |
ZIMMER BIOMET HOLDINGS INCSOLE | COM | 113.48K | SH | $11.18M 2.77% | 113.48K | 0.00 | 0.00 |
BIOGEN INCSOLE | COM | 75.47K | SH | $10.57M 2.62% | 75.47K | 0.00 | 0.00 |
BIOMARIN PHARMACEUTICAL INCSOLE | COM | 175.85K | SH | $9.52M 2.36% | 175.85K | 0.00 | 0.00 |
CARDINAL HEALTH INCSOLE | COM | 59.54K | SH | $9.34M 2.32% | 59.54K | 0.00 | 0.00 |
THERMO FISHER SCIENTIFIC INCSOLE | COM | 18.44K | SH | $8.95M 2.22% | 18.44K | 0.00 | 0.00 |
BAXTER INTL INCSOLE | COM | 381.55K | SH | $8.69M 2.15% | 381.55K | 0.00 | 0.00 |
GE HEALTHCARE TECHNOLOGIES ISOLE | COMMON STOCK | 111.39K | SH | $8.37M 2.07% | 111.39K | 0.00 | 0.00 |
BRUKER CORPSOLE | COM | 250.91K | SH | $8.15M 2.02% | 250.91K | 0.00 | 0.00 |
CENTENE CORP DELSOLE | COM | 213.21K | SH | $7.61M 1.89% | 213.21K | 0.00 | 0.00 |
LABCORP HOLDINGS INCSOLE | COM SHS | 25.97K | SH | $7.45M 1.85% | 25.97K | 0.00 | 0.00 |
PTC THERAPEUTICS INCSOLE | COM | 118.11K | SH | $7.25M 1.80% | 118.11K | 0.00 | 0.00 |
VIATRIS INCSOLE | COM | 668.85K | SH | $6.62M 1.64% | 668.85K | 0.00 | 0.00 |
BIO RAD LABS INCSOLE | CL A | 22.83K | SH | $6.40M 1.59% | 22.83K | 0.00 | 0.00 |
HUMANA INCSOLE | COM | 23.94K | SH | $6.23M 1.54% | 23.94K | 0.00 | 0.00 |
ELANCO ANIMAL HEALTH INCSOLE | COM | 307.27K | SH | $6.19M 1.53% | 307.27K | 0.00 | 0.00 |
Page 1 of 2