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SPOK in the 13F filings

Spok Holdings Inc · CUSIP 84863T106

Sector · Communications and media
Quarter
Q1 2025Q4 2024Q3 2024Q4 2023Q3 2023Q3 2019Q2 2019Q4 2018Q3 2018Q2 2018Q1 2018Q4 2017
Quarter end
31 Dec 2018
the date the book describes
Filed
14 Feb 2019
up to 45 days after the quarter end
Managers listing it
1
at least, of 95 tracked, among listed positions
Comparable managers
84
filed both Q3 2018 and Q4 2018; 1 listed it in both
Shares listed
10,112
combined, among listed positions
Reported value
$134k
combined, at the quarter end

Managers listing SPOK in Q4 2018

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2018, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

1 of 1 holder

ActionFiling
PDT Partners LLC10,112$134kunder 0.1%Trimmed-3,53914 Feb 2019 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2018 to Q4 2018, among managers that listed it in both quarters or opened it.

Increases

No increase among listed positions.

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (0)

No new position among listed positions.

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q4 2018 to 1 in Q1 2025

Tracked managers listing it, at least.

001112015201620182025
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
SPOK by quarter
QuarterHoldersReported valueBuyersSellers
Q3 20141$23mn.a.n.a.
Q4 20141$30mn.a.n.a.
Q1 20151$34mn.a.n.a.
Q2 20151$29mn.a.n.a.
Q3 20151$28mn.a.n.a.
Q4 20151$31mn.a.n.a.
Q1 20161$29mn.a.n.a.
Q2 20161$31mn.a.n.a.
Q3 20161$29mn.a.n.a.
Q3 20171$204kn.a.n.a.
Q4 20171$579kn.a.n.a.
Q1 20181$372kn.a.n.a.
Q2 20181$259kn.a.n.a.
Q3 20181$210kn.a.n.a.
Q4 20181$134kn.a.n.a.
Q2 20191$167kn.a.n.a.
Q3 20191$180kn.a.n.a.
Q3 20231$450kn.a.n.a.
Q4 20231$5.4m10
Q3 20241$6.3m10
Q4 20241$5.9m01
Q1 20251$6.2m10

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

SPOK and NFLX →SPOK and TMUS →SPOK and CMCSA →Choose a stock to compare with SPOK →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own SPOK, latest filings →Back to the 13F Explorer →