Abrdn Life Sciences Investors
US ˙ NYSE ˙ US87911K1007

SecurityHQL / Abrdn Life Sciences Investors
InstitutionAdvisory Services Network, LLC
Latest Disclosed Ownership1,164 shares
Latest Disclosed Value $ 18,938
Advisory Services Network, LLC ownership in HQL / Abrdn Life Sciences Investors

On May 15, 2026 - Advisory Services Network, LLC filed a 13F-HR form disclosing ownership of 1,164 shares of Abrdn Life Sciences Investors (US:HQL) valued at $18,938 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Abrdn Life Sciences Investors. The current value of the position is $20,102 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ABRDN LIFE SCIENCES INVESTORS CEF CEF 87911K100 1,164 1,164 19 0.0002
2026-02-17 2025-12-31 13F ABRDN LIFE SCIENCES INVESTOR CEF 87911K100 0 -852 -100.00 0 -100.00
2025-11-18 2025-09-30 13F ABRDN LIFE SCIENCES INVESTOR CEF 87911K100 852 852 13 0.0002
2024-05-06 2024-03-31 13F ABRDN LIFE SCIENCES INVESTOR CEF 87911K100 0 -2,739 -100.00 0 -100.00
2024-02-09 2023-12-31 13F ABRDN LIFE SCIENCES INVESTOR CEF 87911K100 2,739 2,739 37 0.0009
2023-08-09 2023-06-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 0 -3,643 -100.00 0 -100.00
2023-05-17 2023-03-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 3,643 0 0.00 51 -1.96 0.0014
2023-02-13 2022-12-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 3,643 3,643 52 0.0016
2021-11-05 2021-09-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 0 -2,685 -100.00 0 -100.00
2021-08-12 2021-06-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,685 2,685 58 0.0018
2021-05-24 2021-03-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 0 -4,308 -100.00 0 -100.00
2021-02-09 2020-12-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 4,308 -1,486 -25.65 85 -16.67 0.0034
2020-11-16 2020-09-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 5,794 5,794 34.49 102 20.00 0.0048
2020-08-10 2020-06-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 0 -5,561 -100.00 0 -100.00
2020-05-15 2020-03-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 5,561 3,130 128.75 83 97.62 0.0054
2020-02-04 2019-12-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,431 -142 -5.52 42 -2.33 0.0022
2019-11-04 2019-09-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,573 0 0.00 43 0.00 0.0026
2019-08-01 2019-06-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,573 -106 -3.96 43 -6.52 0.0026
2019-05-20 2019-03-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,679 -9 -0.33 46 12.20 0.0032
2019-02-15 2018-12-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,688 65 2.48 41 -24.07 0.0036
2018-11-02 2018-09-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,623 44 1.71 54 5.88 0.0039
2018-07-27 2018-06-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,579 -1 -0.04 51 2.00 0.0039
2018-04-23 2018-03-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,580 39 1.53 50 0.00 0.0040
2018-02-08 2017-12-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,541 22 0.87 50 -7.41 0.0044
2017-10-12 2017-09-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,519 0 0.00 54 1.89 0.0062
2017-08-17 2017-06-30 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 2,519 235 10.29 53 20.45 0.0069
2017-04-28 2017-03-31 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 2,284 -21 -0.91 44 2.33 0.0064
2016-10-07 2016-09-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 2,305 910 65.23 43 79.17 0.0081
2016-07-27 2016-06-30 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 1,395 1,324 1,864.79 24 2,300.00 0.0055
2016-04-21 2016-03-31 13F TEKLA LIFE SCIENCES INVS CEF 87911K100 71 -1,600 -95.75 1 -97.50 0.0003
2016-01-27 2015-12-31 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 1,671 1,645 6,326.92 40 3,900.00 0.0129
2015-10-01 2015-09-30 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 26 0 0.00 1 0.00 0.0003
2015-07-02 2015-06-30 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 26 0 0.00 1 0.00 0.0003
2015-04-08 2015-03-31 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 26 0 0.00 1 0.00 0.0003
2015-01-23 2014-12-31 13F TEKLA LIFE SCIENCES INVS SH BEN INT CEF 87911K100 26 26 1 0.0003
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.