What occurred
In accordance with a Securities and Change Fee (SEC) submitting dated October 15, 2025, Harbor Capital Advisors diminished its place in F5, Inc. (FFIV -0.88%) by 51,177 shares in Q3 2025. The estimated commerce worth was $16.02 million in Q3 2025. After the sale, Harbor Capital Advisors reported holding 17,112 shares, valued at $5.53 million as of September 30, 2025.
What else to know
This was a promote; the post-trade stake is 0.43% of Harbor Capital Advisors’ 13F reportable AUM in Q3 2025
Prime 5 holdings after the submitting:
IVV: $49,147,000 (3.8% of AUM on September 30, 2025)
EEM: $38,429,000 (3.0% of AUM on September 30, 2025)
EFA: $28.28 million (2.2% of AUM on September 30, 2025)
NVDA: $27,224,000 (2.1% of AUM on September 30, 2025)
GOOGL: $26,539,000 (2.1% of AUM on September 30, 2025)
On October 14, 2025, F5 shares have been priced at $343.17, up 56.39% year-over-year on October 14, 2025, outperforming the S&P 500 by 39.89 share factors over the one-year interval ending October 14, 2025.
The fund reported 1,339 complete positions and $1.29 billion in U.S. fairness AUM in Q3 2025.
Firm overview
MetricValuePrice (as of market shut October 14, 2025)$343.17Market Capitalization$18.74 billionRevenue (TTM)$3.02 billionNet Revenue (TTM)$667.18 million
Firm snapshot
Gives multi-cloud software safety and supply merchandise, together with BIG-IP home equipment, NGINX software program, DDoS safety, and fraud prevention options.
Generates income from gross sales of software program, {hardware}, and associated companies.
Serves massive enterprises, public sector establishments, governments, and repair suppliers globally by way of direct gross sales and channel companions.
F5 is a number one supplier of software safety and supply options, enabling organizations to safe, optimize, and handle purposes throughout on-premises and cloud environments. The corporate leverages a various portfolio of {hardware} and software program choices to deal with complicated safety and efficiency necessities for mission-critical purposes. With a world buyer base and partnerships with main cloud suppliers, F5 delivers software safety and supply options.
Silly take
Earlier than Harbor Capital Advisors offered most of its F5 stake throughout the third quarter, it was the agency’s ninth largest holding and price about 0.8% of the entire portfolio. From the top of the second quarter by way of the top of the third quarter this yr, Harbor Capital’s portfolio shrank from $2.4 billion all the way down to $1.3 billion.
Harbor Capital Advisors’ sale of F5 inventory within the third quarter appears prescient. Shares of the cybersecurity enterprise that goals to safe each software and its corresponding software programming interface (API) lately tanked.
On Oct. 15, F5, Inc. admitted in an SEC submitting that unidentified risk actors broke into its techniques and stole some necessary recordsdata. In accordance with the corporate, the attackers are believed to have been in its community for not less than 12 months. The inventory is down by about 13% since Oct. 14.
F5 expects to report its fiscal fourth quarter outcomes on Oct. 27, 2025, after the market closes.
Glossary
13F reportable AUM: Property underneath administration that have to be reported quarterly to the SEC by institutional funding managers on Kind 13F.
AUM (Property Underneath Administration): The whole market worth of investments managed on behalf of shoppers by a fund or establishment.
Publish-trade place: The variety of shares or worth of a holding remaining after a commerce has been executed.
Stake: The proportion or quantity of possession an investor or fund holds in a selected firm.
Prime 5 holdings: The 5 largest investments in a fund’s portfolio, ranked by market worth.
Outperforming: Attaining a better return or progress charge in comparison with a benchmark or index over a particular interval.
Channel companions: Third-party firms or organizations that assist a enterprise promote its services or products.
Multi-cloud: Utilizing a number of cloud computing companies from completely different suppliers inside a single structure or group.
Direct gross sales: Gross sales made immediately from the corporate to the client, with out intermediaries.
Mission-critical purposes: Software program or techniques important to the core perform and operation of a corporation.
DDoS safety: Safety options designed to forestall or mitigate distributed denial-of-service assaults that disrupt on-line companies.
TTM: The 12-month interval ending with the latest quarterly report.

