<PAGE>

                            UNITED STATES
                  SECURITIES AND EXCHANGE COMMISSION
                         Washington, D.C.  20549

                              FORM 10-Q

[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

              For the quarterly period ended September 30, 2005

                                 OR

[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     SECURITIES EXCHANGE ACT OF 1934

            For the transition period from N/A to N/A
                                           ---    ---

                      Commission File No. 814-55

TECHNOLOGY FUNDING VENTURE PARTNERS IV, AN AGGRESSIVE GROWTH FUND, L.P.
-----------------------------------------------------------------------
         (Exact name of Registrant as specified in its charter)

          Delaware                         94-3054600
 ------------------------------     ---------------------------------
(State or other jurisdiction of    (I.R.S. Employer Identification No.)
incorporation or organization)

   1107 Investment Blvd., Suite 180
   El Dorado Hills, California                                 95762
---------------------------------------                       --------
(Address of principal executive offices)                     (Zip Code)

                              (916) 941-1400
             --------------------------------------------------
            (Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:  None
Securities registered pursuant to Section 12(g) of the Act:  Limited
Partnership Units

Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act
of 1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.  Yes X  No
                                                   ---   ---

Indicate by check mark whether the registrant is an accelerated filer (as
defined in Rule 12B-2 of the Act).              Yes    No X
                                                   ---   ---

No active market for the units of limited partnership interests ("Units")
exists, and therefore the market value of such Units cannot be determined.

Forward-Looking Statements
--------------------------

The Private Securities Litigation Reform Act of 1995 (the Act) provides a
safe harbor for forward-looking statements made by or on behalf of the
Partnership.  The Partnership and its representatives may from time to time
make written or oral statements that are "forward-looking," including
statements contained in this report and other filings with the Securities
and Exchange Commission, and reports to the Partnership's shareholders and
news releases.  All statements that express expectations, estimates,
forecasts and projections are forward-looking statements within the meaning
of the Act.  In addition, other written or oral statements, which
constitute forward-looking statements, may be made by or on behalf of the
Partnership.  Words such as "expects," "anticipates," "intends," "plans,"
"believes," "seeks," "estimates," "projects," "forecasts," "may," "should,"
variations of such words and similar expressions are intended to identify
such forward-looking statements.  These statements are not guarantees of
future performance and involve certain risks, uncertainties and
assumptions, which are difficult to predict.  Therefore, actual outcomes
and results may differ materially from what is expressed or forecasted in
or suggested by such forward-looking statements.  The Partnership
undertakes no obligation to update publicly any forward-looking statements,
whether as a result of new information, future events or otherwise.



<PAGE>
I.  FINANCIAL INFORMATION

Item 1.  Financial Statements

STATEMENTS OF NET ASSETS IN LIQUIDATION
---------------------------------------
<TABLE>
<CAPTION>
                                             (unaudited)
                                            September 30,      December 31,
                                                2005               2004
                                            -------------      ------------
<S>                                           <C>                <C>
ASSETS

Investments:
 Equity investments (cost of
  $2,339,961 and $2,165,201 at
  September 30, 2005, and
  December 31, 2004, respectively)            $  856,112         $2,131,156
Cash and cash equivalents                         44,608          1,881,324
Prepaid expenses                                  74,934            100,159
Due from portfolio company, net                  864,545            224,594
Other assets                                          --              4,352
                                               ---------          ---------
   Total assets                               $1,840,199         $4,341,585
                                               =========          =========

LIABILITIES AND PARTNERS' CAPITAL

Accounts payable and accrued expenses         $   33,040         $   21,274
Due to related parties, net                      322,761            263,759
Other liabilities                                  3,353              3,353
                                               ---------          ---------
   Total liabilities                             359,154            288,386

Commitments and contingencies (See Note 8)


BALANCE SHEETS (continued)
--------------------------

Partners' capital
  Limited Partners
    (400,000 Units outstanding)                3,306,954          5,368,351
  General Partners                            (1,825,909)        (1,315,152)
                                               ---------          ---------
Total partners' capital                        1,481,045          4,053,199
                                               ---------          ---------
   Total liabilities and partners' capital    $1,840,199         $4,341,585
                                               =========          =========
</TABLE>




























The accompanying notes are an integral part of these financial statements.



STATEMENTS OF INVESTMENTS
-------------------------
<TABLE>
<CAPTION>
                                         Principal
                                         Amount or     September 30, 2005    December 31, 2004
Industry                                 Shares at     ------------------    -----------------
(1)                         Investment  September 30,   Cost       Fair      Cost        Fair
Company           Position     Date        2005         Basis      Value     Basis       Value
-------------     --------  ----------  -----------     -----      -----     -----       -----
<S>                <C>         <C>      <C>         <C>        <C>          <C>        <C>

Equity Investments
------------------

Environmental
-------------
0.0% and 0.0% at September 30, 2005, and December 31, 2004, respectively
--------------------------------------------------------------------------
Triangle
 Biomedical        Common
 Sciences, Inc.(a) shares and
                   attached
                   warrants
                   at $28.00;
                   expiring
                   2009         1999         366      10,614         --      10,614         --
                                                   ---------  ---------   ---------  ---------






STATEMENTS OF INVESTMENTS (continued)
--------------------------------------------

Medical/Biotechnology
---------------------
31.1% and 10.2% at September 30, 2005, and December 31, 2004, respectively
--------------------------------------------------------------------------
Sanarus Medical    Preferred   1999-
 Inc. (a) (b)      shares      2005     1,152,227    947,615    460,891     647,616    268,860
Various                        1998-
 Investments       various     2004       various         55         22     110,133    143,092
                                                   ---------  ---------   ---------  ---------
                                                     947,670    460,913     757,749    411,952
                                                   ---------  ---------   ---------  ---------
Retail / Consumer Products
--------------------------
21.8% and 39.8% at September 30, 2005, and December 31, 2004, respectively
-------------------------------------------------------------------------
Dakota Holdings    LLC          2003-
 LLC (a)(b)        Units        2004     879,638     879,638    307,873     879,638  1,539,367
Various            Preferred
 investments       shares       2004      43,744      72,503     14,515      72,503     72,528
                                                    --------  ---------   ---------  ---------
                                                     952,141    322,388     952,141  1,611,895
                                                    --------  ---------   ---------  ---------

Venture Capital Limited Partnership Investments
-----------------------------------------------
4.9% and 2.6% at September 30, 2005, and December 31, 2004, respectively
------------------------------------------------------------------------
Various            Ltd.
 Investments       partnership
                   Interests    various   various    429,536     72,811     444,697    107,309
                                                   ---------  ---------   ---------  ---------
STATEMENTS OF INVESTMENTS (continued)
--------------------------------------------

Total investments - 57.8% and 52.6% at
 September 30, 2005, and December 31, 2004,
 respectively                                     $2,339,961 $  856,112  $2,165,201 $2,131,156
                                                   =========  =========   =========  =========

Legends and footnotes:

--  No investment held at end of period.

(a) Equity security acquired in a private placement transaction;
    resale may be subject to certain selling restrictions.
(b) Portfolio company is an affiliate of the Partnership; resale may
    be subject to certain selling restrictions.

(1)	Represents the total fair value of a particular industry segment
    as a percentage of partners' capital at 09/30/05 and 12/31/04.

</TABLE>

The accompanying notes are an integral part of these financial statements.


STATEMENTS OF CHANGES IN NET ASSETS (unaudited)
-----------------------------------------------
<TABLE>
<CAPTION>
                                               For the Three Months           For the Nine Months
                                                Ended September 30,            Ended September 30,
                                               --------------------           -------------------
                                                2005          2004             2005         2004
                                               ------        ------           ------       ------
<S>                                        <C>           <C>             <C>           <C>
Investment income:
 Notes receivable interest                 $      --      $     420       $      --    $    1,253
 Short-term investment interest and other        625             12           1,270           489
                                           ---------      ---------       ---------     ---------
  Total investment income                        625            432           1,270         1,742

Investment expenses:
 Management fees                               4,064          9,705          23,521        32,917
 Individual General Partners' compensation    10,000         10,500          40,000        40,625
 Investment operations                        23,620         80,672         153,587       261,265
 Liquidation expenses                             --        820,040              --       820,040
 Administrative and investor services        170,611        331,950         548,761     1,162,367
 Professional fees                            30,404         28,260         135,000        59,682
 Computer services                            25,063         28,410          75,461       113,804
 Bad debt expense                             17,974             --         370,519            --
 Interest expense                                 --          4,616              --        12,335
                                           ---------      ---------       ---------     ---------
  Total investment expenses                  281,736      1,314,153       1,346,849     2,503,035
                                           ---------      ---------       ---------     ---------
Net investment loss                         (281,111)    (1,313,721)     (1,345,579)   (2,501,293)
                                           ---------      ---------       ---------     ---------



STATEMENTS OF CHANGES IN NET ASSETS (unaudited) (continued)
-----------------------------------------------------------

 Realized gain from recovery of
  investments previously written off          86,037             --          86,037        98,111
 Realized gain (loss) from sales of
  equity investments                          48,430        (27,381)        137,192       121,218
Realized loss from venture capital
  limited partnership write-off                   --        (41,124)             --      (371,459)
 Realized loss from investment
  write-off                                       --             --              --      (619,687)
                                           ---------      ---------       ---------     ---------
Net realized income (loss)                   134,467        (68,505)        223,229      (771,817)
                                           ---------      ---------       ---------     ---------

Net decrease (increase)
 in unrealized depreciation                   29,248      1,475,911      (1,449,804)    2,388,064
                                           ---------      ---------       ---------     ---------

Net (decrease) increase in partners'
 capital resulting from operations         $(117,396)   $    93,685     $(2,572,154)   $ (885,046)
                                           =========      =========       =========     =========
Net (decrease) increase in partners'
 capital resulting from operations
 per Unit                                  $    (.22)   $      0.19     $     (5.15)   $    (1.77)
                                             =======      =========       =========     =========
</TABLE>

The accompanying notes are an integral part of these financial statements.


<PAGE>
STATEMENTS OF CASH FLOWS (unaudited)
-----------------------------------
<TABLE>
<CAPTION>
                                               For the Nine Months
                                               Ended September 30,
                                           ----------------------------
                                             2005               2004
                                           ---------          ---------
<S>                                       <C>               <C>
Net (decrease) in partners'capital
 resulting from operations               $(2,572,154)      $   (885,046)

Adjustments to reconcile decrease
 in partners' capital resulting
 from operations to net cash (used)
 provided by operating activities:
  Bad debt expense                           370,519                 --
  Net realized gain on the sale of
   equity investments                       (137,192)          (121,218)
  Net realized gain on the recovery
   of investments previously written off     (86,037)           (98,111)
  Net realized loss from the write-off
   of venture capital limited
   partnership investments                        --            371,459
  Net realized loss from the write-off
   of equity investments                          --            619,687
  Net increase (decrease) in unrealized
   depreciation of equity investments      1,449,804         (2,388,064)
  Net changes in operating assets and
   liabilities:
    Accrued interest on notes receivable          --             (1,253)
    Prepaid expenses                          25,225            140,203
    Other receivable                              --             68,323
    Due to related parties, net               59,002          1,435,806
    Due from portfolio company, net       (1,010,470)          (224,594)
    Accounts payable and accrued
     expenses                                 11,766            793,200
    Other changes, net                         4,352             82,452
                                           ---------          ---------

Net cash used by operating activities     (1,885,185)          (207,156)
                                           ---------          ---------


STATEMENTS OF CASH FLOWS (unaudited)(continued)
----------------------------------------------

Cash flows from investing activities:
 Purchase of equity investments            (300,000)           (230,490)
Proceeds from the sale of equity
  investments                               247,272             317,380
Proceeds from the recovery of investments
 previously written off                      86,037              98,111
Distributions from venture capital
  limited partnership investments            15,160                  --
                                          ---------           ---------
Net cash provided by investing
 activities                                  48,469             185,001
                                          ---------           ---------

Cash flows from financing activities:
 Short-term borrowings                           --              36,851
                                          ---------           ---------

Net cash provided by financing
 activities                                      --              36,851
                                          ---------           ---------

Net (decrease) increase in cash and
 cash equivalents                        (1,836,716)             14,696

Cash and cash equivalents at
 beginning of year                        1,881,324             109,664
                                          ---------           ---------

Cash and cash equivalents
 at September 30                         $   44,608          $  124,360
                                          =========           =========

</TABLE>







The accompanying notes are an integral part of these financial statements.



<PAGE>
NOTES TO FINANCIAL STATEMENTS (unaudited)
----------------------------------------

1.     Interim Financial Statements
       ----------------------------

The accompanying unaudited financial statements included herein have been
prepared in accordance with the requirements of Form 10-Q and, therefore,
do not include all information and footnotes, which would be presented,
were such financial statements prepared in accordance with generally
accepted accounting principles in the United States of America.  These
statements should be read in conjunction with the Annual Report on Form 10-
K for the year ended December 31, 2004.  In the opinion of the Managing
General Partners, the accompanying interim financial statements reflect all
adjustments necessary for the fair presentation of the financial position,
results of operations, and cash flows for the interim periods presented.
Allocation of income and loss to Limited and General Partners is based on
income and loss for the periods presented.  Adjustments, if any, are
reflected in the current quarter balances.  The results of operations for
such interim periods are not necessarily indicative of results of
operations to be expected for the full year.

2.     Uncertain Future of the Partnership
       -----------------------------------

The uncertainties arising from the timing of future liquidation events
raise substantial doubt about the Partnership's ability to continue as a
going concern.  The accompanying interim financial statements do not
include any adjustments that might result from the outcome of these
uncertainties.  As a result, the Independent General Partners have tasked
the Managing General Partners with examining a number of different options,
including the possible early sale of some of the Partnership's private
holdings.

3.     Reclassifications
       -----------------
Certain balances in prior periods have been reclassified in accordance with
current year balances for comparability.

4.     Provision for Income Taxes
       --------------------------

No provision for income taxes has been made by the Partnership, as the
Partnership is not directly subject to taxation.  The partners are to
report their respective shares of Partnership income or loss on their
individual tax returns.

The accompanying financial statements are prepared using accounting
principles generally accepted in the United States of America, which may
not equate to tax accounting.  The cost of investments on a tax basis at
September 30, 2005, and December 31, 2004, was $2,956,968 and $2,810,768
respectively.  At September 30, 2005, and December 31, 2004, gross
unrealized depreciation on investments based on cost for federal income tax
purposes was as follows:

<TABLE>
<CAPTION>
                                     September 30,   December 31,
                                          2005           2004
                                     -------------   ------------
<S>                                   <C>            <C>
Unrealized appreciation               $     8,599    $   717,774
Unrealized depreciation                (2,109,455)    (1,397,384)
                                        ---------      ---------
Net unrealized depreciation           $(2,100,856)   $  (679,610)
                                        =========      =========

</TABLE>

5.     Related Party Transactions
       --------------------------

Related party costs are included in investment expenses shown on the
Statements of Operations.  Related party costs for the nine months ended
September 30, 2005 and 2004, were as follows:

<TABLE>
<CAPTION>
                                                  2005          2004
                                                --------      --------
  <S>                                         <C>             <C>
   Management fees                            $   23,521      $ 32,917
   Individual General Partners' compensation      40,000        40,625
   Reimbursable operating expenses               912,809     1,597,118
   Liquidation expenses                               --       820,040

</TABLE>

The Partnership reimburses the Managing General Partners for certain
operating expenses incurred in connection with the business of the
Partnership.  Reimbursable operating expenses paid by the Managing General
Partners include expenses (other than organizational and offering expenses
and general partner overhead) such as administrative and investor services,
investment operations, and computer services.  Certain reimbursable
expenses have been accrued based upon interim estimates prepared by the
Managing General Partners and are adjusted to actual periodically. There
were $305,830 due to related parties and included in due to related party,
net at September 30, 2005 for such expenses.  There were $259,835 due to
related parties and included in due to related party, net at December 31,
2004.

Management fees due to the Managing General Partners and included in due to
related parties, net at September 30, 2005 and due to related parties, net
at December 31, 2004 were $6,931 and $3,924, respectively.

Fees due to the Independent General Partners and included in due to related
parties, net were $10,000.  There was no such liability as of December 31,
2004.

As of September 30, 2005 and December 31, 2004, the Partnership has a due
from related party receivable of $1,235,064 and $224,594, respectively,
related to its investment in Dakota Holdings, LLC.  The Partnership has
advanced funds to the company for operations.  It is the Managing General
Partners' expectation that all or a portion of this receivable will be
converted into additional equity investments.  Management periodically
reviews the receivable for collectibility.  Based on this review,
management has recorded a reserve on the receivable of $370,519 as of
September 30, 2005.  There was no such reserve as of December 31, 2004.

Officers of the Managing General Partners occasionally receive stock
options as compensation for serving on the Boards of Directors of portfolio
companies.  It is the Managing General Partners' policy that all such
compensation be transferred to the investing partnerships.  If the options
are non-transferable, they are not recorded as an asset of the Partnership.
Any profit from the exercise of such options will be transferred if and
when the options are exercised and the underlying stock is sold by the
officers.  Any such profit is allocated amongst the Partnership and
affiliated partnerships based upon their proportionate investment in the
portfolio company.  One of the Managing General Partners serves as interim
CEO and Chairman of the Board for Dakota Arms, Inc., a portfolio company.
The Managing General Partner does not receive any compensation for these
services.

Retention bonuses were offered to and accepted by key employees of the
Managing General Partners during 2002. The bonuses, incremented by annual
salary increases, will be paid to those individuals who are still full-time
employees of the Managing General Partners in April 2007.  Due to an
anticipated liquidation, as of September 30, 2005, the Partnership has
fully amortized the expense for the bonus and recognized an expense of
$110,127.

6.     Equity Investments
       ------------------

All investments are valued at fair value as determined in good faith by the
Managing General Partners.


Restricted Securities
---------------------

At September 30, 2005 and December 31, 2004, restricted securities had
aggregate costs of $2,339,961 and $2,165,201, respectively, and aggregate
fair values of $856,112 and $2,131,156, respectively, representing 57.8
percent and 20.7 percent, respectively, of the net assets of the
Partnership.

Significant purchases or sales of equity investments during the nine months
ended September 30, 2005, were as follows:

Corautus Genetics Inc.
----------------------

In March 2005, the Partnership exercised a common stock warrant and
received 14,550 shares.  Subsequently, all the shares were sold for
proceeds of $58,348, resulting in a realized gain of $58,348.

Phase Forward Inc.
------------------

In March 2005, the Partnership received a stock distribution in the company
from Onset Enterprises Associates, L.P., a venture capital limited
partnership.  Subsequently, the Partnership sold its holdings in the
company for proceeds of $13,625 and recorded a realized gain of $13,625.

Sanarus Medical, Inc.
---------------------

In January 2005, the Partnership purchased 375,939 Series D Preferred
shares at a cost of $300,000.

Laser Diagnostic Technologies
-----------------------------

In April 2005, the Partnership sold its entire position in the company for
proceeds of $127,987, resulting in a realized gain of $17,907.

Redcell (formerly ConjuChem Inc.)
---------------------------------

In September 2005, the Partnership recovered and recorded a gain of $86,037
from Redcell, an investment that was previously written off.

Onset Enterprises Associates, L.P.,
----------------------------------

In September 2005, the Partnership received a cash distribution of $15,160
from Onset Enterprises Associates, L.P., a venture capital limited
partnership.  No gain was recorded.

Icagen, Inc.
------------

In September 2005, the Partnership received a stock distribution in the
company from Medical Science Partners, a venture capital limited
partnership previously written off.  Subsequently, the Partnership sold its
holdings in the company for proceeds of $47,312 and recorded a realized
gain of $47,312.


Other Equity Investments
------------------------

Other significant changes reflected in the Statements of Investments relate
to market value fluctuations for publicly traded portfolio companies or
changes in the fair value of private companies as determined in accordance
with the policy described in Note 1 to the financial statements included in
the Partnership's December 31, 2004, Form 10-K.

7.     Cash and Cash Equivalents
       -------------------------

Cash and cash equivalents at September 30, 2005, and December 31, 2004,
consisted of demand accounts totaling $44,608 and $1,881,324,
respectively.

8.     Commitments and Contingencies
       -----------------------------

From time to time the Partnership becomes a party to financial instruments
with off-balance-sheet risk in the normal course of its business.
Generally, these instruments are commitments for future equity investment
fundings, equipment financing commitments, or accounts receivable lines of
credit that are outstanding but not currently fully utilized by a borrowing
company.  As they do not represent current outstanding balances, these
unfunded commitments are not recognized in the financial statements.  At
September 30, 2005, the Partnership had no unfunded equity commitments.

From time to time, the Partnership is subject to routine litigation
incidental to the business of the Partnership.  Although there can be no
assurances as to the ultimate disposition of these matters and the
proceeding disclosed above, it is the opinion of the Managing General
Partners, based upon the information available at this time, that the
expected outcome of these matters, individually or in the aggregate, will
not have a material adverse effect on the results of operations and
financial condition of the Partnership.


 9.    Financial Highlights
       --------------------
<TABLE>
<CAPTION>
                                    For The Nine Months Ended September 30,
                                    ---------------------------------------
                                           2005          2004
                                          ------        ------
<S>                                        <C>          <C>
(all amounts on a per Unit basis)
Net asset value,
 beginning of period                      $13.42        $13.53

(Loss) from investment operations:
  Net investment loss                      (2.69)        (5.00)
  Net realized and unrealized
   gain on investments                     (2.46)         3.23
                                           -----         -----
  Total from investment operations         (5.15)        (1.77)
                                           -----         -----
Net asset value, end of period            $ 8.27        $11.76
                                           =====         =====
Total return                              (38.40)%     (13.08)%

Ratios to average net assets:
 Net investment loss                      (24.82)%     (39.56)%
 Expenses                                  31.05%       49.48%

</TABLE>

Pursuant to the Partnership Agreement, net profit shall be allocated first
to those Partners with deficit capital account balances until such deficits
have been eliminated.  Upon liquidation, the General Partners would
contribute capital equal to the amount of the Limited Partners' deficit. As
of September 30, 2005 and December 31, 2004, the General Partners had a
deficit capital balance of $1,825,909 and $1,315,152, respectively. Net
asset value has been calculated in accordance with the provisions of the
Partnership Agreement.


Item 2.  Management's Discussion and Analysis of Financial
         Condition and Results of Operations


Liquidity and Capital Resources
-------------------------------

The Partnership operates as a business development company under the
Investment Company Act of 1940 and makes venture capital investments in new
and developing companies.  The Partnership's financial condition is
dependent upon the success of the portfolio companies.  There is no ready
market for many of the Partnership's investments.  It is possible that some
of its venture capital investments may be a complete loss or may be
unprofitable and that others will appear likely to become successful, but
may never realize their potential.  The valuation of the Partnership's
investments in securities for which there are no available market quotes is
subject to the estimate of the Managing General Partners in accordance with
the valuation guidance described in Note 1 to the financial statements
included in the Partnership's Form 10-K for the year ended December 31,
2004.
In the absence of readily obtainable market values, the estimated
liquidation value of the Partnership's investments may differ significantly
from the values that would have been used had a ready market existed.

During the nine months ended September 30, 2005, net cash used by operating
activities totaled $1,885,185.  The Partnership paid management fees of
$20,514 to the Managing General Partners and reimbursed related parties for
operating expenses of $866,814.  Advances of $1,010,470 were made to Dakota
Arms during the period.  In addition, $30,000 was paid to the Individual
General Partners as compensation for their services.  Interest income of
$1,270 was received.  Other net receipts were $41,343.

Cash and cash equivalents at September 30, 2005, were $44,608.  Given the
inherent risk associated with the business of the Partnership, the future
performance of the portfolio company investments may significantly impact
future operations.


Results of Operations
---------------------

Current quarter compared to corresponding quarter in the preceding year
-----------------------------------------------------------------------

Net decrease in partners' capital resulting from operations was $117,396
for the quarter ended September 30, 2005, compared to a net increase in
partners' capital resulting from operations of $93,685 for the same period
in 2004.

Net unrealized depreciation on equity investments was $1,483,849 and
$34,045 at September 30, 2005 and December 31, 2004, respectively.  During
the quarter ended September 30, 2005, the Partnership recorded a decrease
in net unrealized depreciation on equity investments of $29,248 compared to
a decrease in net unrealized depreciation of $1,475,911 during the same
period in 2004.  The change in 2005 was due to increases in the valuations
of the privately held securities.  The change in 2004 was due to the
increase in the fair values of privately held companies in the
environmental and medical/biotechnology industries.

During the quarters ended September 30, 2005 and 2004, there were no
realized gains from venture capital limited partnership investments.

Total investment expenses were $281,736 and $1,314,153 for the quarters
ended September 30, 2005 and 2004, respectively.  The decrease was
primarily due to decreased investment monitoring, computer services, and
administrative services, partially offset by an increased valuation reserve
on the Dakota Holdings receivable.

Current nine months compared to corresponding nine months in the preceding
-------------------------------------------------------------------------
year
----

Net decrease in partners' capital resulting from operations was $2,572,154
for the nine months ended September 30, 2005, compared to a net decrease in
partners' capital resulting from operations of $885,046 for the same period
in 2004.

Net unrealized depreciation on equity investments was $1,483,849 and
$34,045 at September 30, 2005 and December 31, 2004, respectively.  During
the nine months ended September 30, 2005, the Partnership recorded an
increase in net unrealized depreciation on equity investments of $1,449,804
compared to a decrease in net unrealized depreciation of $2,388,064 during
the same period in 2004.  The change in 2005 was due to increases in the
valuations of the privately held securities.  The change in 2004 was due to
the increase in the fair values of privately held companies in the
environmental and medical/biotechnology industries.

Total investment expenses were $1,346,849 and $2,503,035 for the nine
months ended September 30, 2005 and 2004, respectively. The decrease was
primarily due to decreased investment monitoring, computer services, and
administrative services, partially offset by an increased valuation reserve
on the Dakota Holdings receivable.

During the nine months ended September 30, 2005, there were no realized
gains or losses from venture capital limited partnership investments.

Given the inherent risk associated with the business of the Partnership,
the future performance of the portfolio company investments may
significantly impact future operations.

Item 4.   Controls and Procedures

The undersigned is responsible for establishing and maintaining disclosure
controls and procedures for Technology Funding Venture Partners IV, An
Aggressive Growth Fund, L.P.  Such officer has concluded (based upon his
evaluation of these controls and procedures as of a date within 90 days of
the filing of this report) that Technology Funding Venture Partners IV, An
Aggressive Growth Fund, L.P.'s disclosure controls and procedures are
effective to ensure that information required to be disclosed by Technology
Funding Venture Partners IV, An Aggressive Growth Fund, L.P. in this report
is accumulated and communicated to Technology Funding Venture Partners IV,
An Aggressive Growth Fund, L.P.'s management, including its principal
executive officers as appropriate, to allow timely decisions regarding
required disclosure.

The certifying officer also has indicated that there were no significant
changes in Technology Funding Venture Partners IV, An Aggressive Growth
Fund, L.P.'s internal controls or other factors that could significantly
affect such controls subsequent to the date of their evaluation other than
changes needed to maintain adequate separation of duties and
responsibilities of personnel in the ordinary course of business, and there
were no corrective actions with regard to significant deficiencies and
material weaknesses.





<PAGE>




                              SIGNATURES
                              ----------

Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this Report to be
signed on its behalf by the undersigned, thereunto duly authorized.

                         TECHNOLOGY FUNDING VENTURE PARTNERS IV,
                         AN AGGRESSIVE GROWTH FUND, L.P.

                         By:  TECHNOLOGY FUNDING INC.
                              TECHNOLOGY FUNDING LTD.
                              Managing General Partners




Date:  November 14, 2005    By:   /s/Charles R. Kokesh
                               --------------------------------
                                     Charles R. Kokesh
                                     President, Chief Executive
                                     Officer, Chief Financial
                                     Officer and Chairman of
                                     Technology Funding Inc. and
                                     Managing General Partner of
                                     Technology Funding Ltd.






Technology Funding Venture Partners IV, L.P.
(a Delaware limited partnership)                 11/14/2005  12:04 PM
Page 7 of 21

Technology Funding Venture Partners IV, L.P.
(a Delaware limited partnership)