L3VLUP
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
27
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 4 listed it in both
Shares listed
33,126,906
combined, among listed positions
Reported value
$2.4bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 16 buyers (opened or added shares) and 16 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +336,116.

Managers listing SWK in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

27 of 27 holders

ActionFiling
Capital Research Global Investors12,975,998$922m0.14%Added+119,48113 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc10,031,732$713m0.08%Added+133,54215 May 2026 (the filing on sec.gov)
Invesco Ltd3,605,886$256munder 0.1%Added+276,99312 May 2026 (the filing on sec.gov)
MFS Investment Management1,643,332$117munder 0.1%Trimmed-228,50714 May 2026 (the filing on sec.gov)
AQR Capital Management LLC1,221,501$85munder 0.1%Added+711,87015 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP708,037$50m0.36%Added+593,02515 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP667,722$47munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)449,661$32munder 0.1%Added+15,99715 May 2026 (the filing on sec.gov)
Wellington Management Group LLP409,327$29munder 0.1%Added+49,76215 May 2026 (the filing on sec.gov)
Millennium Management LLC256,467$18munder 0.1%Added+48,47415 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.186,373$13munder 0.1%Trimmed-301,98815 May 2026 (the filing on sec.gov)
AllianceBernstein LP176,434$13munder 0.1%Trimmed-7,61215 May 2026 (the filing on sec.gov)
Man Group PLC170,551$12munder 0.1%Added+85,56315 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC120,808$8.6munder 0.1%Added+88,11615 May 2026 (the filing on sec.gov)
Tudor Investment Corp112,669$8.0munder 0.1%Added+60,83115 May 2026 (the filing on sec.gov)
Citadel Advisors LLC91,320$6.5munder 0.1%Trimmed-127,05815 May 2026 (the filing on sec.gov)
Walleye Capital LLC72,315$5.1munder 0.1%Trimmed-27,89613 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP69,405$4.9munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd68,591$4.9munder 0.1%Trimmed-38418 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC30,086$2.1munder 0.1%Added+8,50527 Oct 2026 (the filing on sec.gov)
Susquehanna International Group LLP18,237$1.3munder 0.1%Trimmed-194,53815 May 2026 (the filing on sec.gov)
Marshall Wace LLP13,593$966kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Balyasny Asset Management LLC7,646$543kunder 0.1%Trimmed-255,32715 May 2026 (the filing on sec.gov)
Verition Fund Management LLC7,567$538kunder 0.1%Trimmed-78,77115 May 2026 (the filing on sec.gov)
Jane Street Group LLC4,614$328kunder 0.1%Trimmed-44,01412 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

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

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.
10 in Q3 2024 to 7 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
SWK by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20137$1.9bnn.a.n.a.
Q3 20138$2.3bnn.a.n.a.
Q4 201310$1.5bnn.a.n.a.
Q1 20149$1.1bnn.a.n.a.
Q2 20149$1.2bnn.a.n.a.
Q3 201412$1.5bnn.a.n.a.
Q4 201411$1.5bnn.a.n.a.
Q1 201515$1.6bnn.a.n.a.
Q2 201514$1.7bnn.a.n.a.
Q3 201510$1.1bnn.a.n.a.
Q4 201511$1.0bnn.a.n.a.
Q1 201613$1.2bnn.a.n.a.
Q2 201616$1.1bnn.a.n.a.
Q3 201613$1.3bnn.a.n.a.
Q4 201616$1.4bnn.a.n.a.
Q1 201715$1.7bnn.a.n.a.
Q2 201717$1.9bnn.a.n.a.
Q3 201717$2.6bnn.a.n.a.
Q4 201711$2.8bnn.a.n.a.
Q1 201817$3.0bnn.a.n.a.
Q2 201823$2.9bnn.a.n.a.
Q3 201810$3.1bnn.a.n.a.
Q4 201815$2.7bnn.a.n.a.
Q1 201911$3.1bnn.a.n.a.
Q2 201918$3.8bnn.a.n.a.
Q3 201918$3.5bnn.a.n.a.
Q4 201921$4.4bnn.a.n.a.
Q1 202022$2.4bnn.a.n.a.
Q2 202016$4.0bnn.a.n.a.
Q3 202016$4.7bnn.a.n.a.
Q4 202020$4.9bnn.a.n.a.
Q1 202116$4.6bnn.a.n.a.
Q2 202122$4.4bnn.a.n.a.
Q3 202113$3.8bnn.a.n.a.
Q4 202115$3.9bnn.a.n.a.
Q1 202217$2.4bnn.a.n.a.
Q2 202214$1.8bnn.a.n.a.
Q3 202212$1.8bnn.a.n.a.
Q4 202213$1.9bnn.a.n.a.
Q1 202314$2.6bnn.a.n.a.
Q2 202310$3.0bnn.a.n.a.
Q3 20239$2.4bnn.a.n.a.
Q4 202314$2.8bn95
Q1 202412$2.9bn112
Q2 202412$2.5bn83
Q3 202410$3.2bn55
Q4 202411$2.7bn92
Q1 20259$3.0bn72
Q2 202512$2.1bn111
Q3 20258$2.1bn64
Q4 20257$1.9bn1715
Q1 20265$1.8bn1616
Q2 20267$2.6bn1713

Compare with…

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

SWK and KLAC →SWK and GE →SWK and LRCX →Choose a stock to compare with SWK →

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 SWK, latest filings →Back to the 13F Explorer →