diff --git a/src/ctl.c b/src/ctl.c
index 72ad587d..a1508910 100644
--- a/src/ctl.c
+++ b/src/ctl.c
@@ -127,6 +127,7 @@ INDEX_PROTO(arena_i)
 CTL_PROTO(arenas_bin_i_size)
 CTL_PROTO(arenas_bin_i_nregs)
 CTL_PROTO(arenas_bin_i_slab_size)
+CTL_PROTO(arenas_bin_i_nshards)
 INDEX_PROTO(arenas_bin_i)
 CTL_PROTO(arenas_lextent_i_size)
 INDEX_PROTO(arenas_lextent_i)
@@ -355,7 +356,8 @@ static const ctl_indexed_node_t arena_node[] = {
 static const ctl_named_node_t arenas_bin_i_node[] = {
 	{NAME("size"),		CTL(arenas_bin_i_size)},
 	{NAME("nregs"),		CTL(arenas_bin_i_nregs)},
-	{NAME("slab_size"),	CTL(arenas_bin_i_slab_size)}
+	{NAME("slab_size"),	CTL(arenas_bin_i_slab_size)},
+	{NAME("nshards"),	CTL(arenas_bin_i_nshards)}
 };
 static const ctl_named_node_t super_arenas_bin_i_node[] = {
 	{NAME(""),		CHILD(named, arenas_bin_i)}
@@ -2490,6 +2492,7 @@ CTL_RO_NL_GEN(arenas_nhbins, nhbins, unsigned)
 CTL_RO_NL_GEN(arenas_bin_i_size, bin_infos[mib[2]].reg_size, size_t)
 CTL_RO_NL_GEN(arenas_bin_i_nregs, bin_infos[mib[2]].nregs, uint32_t)
 CTL_RO_NL_GEN(arenas_bin_i_slab_size, bin_infos[mib[2]].slab_size, size_t)
+CTL_RO_NL_GEN(arenas_bin_i_nshards, bin_infos[mib[2]].n_shards, uint32_t)
 static const ctl_named_node_t *
 arenas_bin_i_index(tsdn_t *tsdn, const size_t *mib,
     size_t miblen, size_t i) {
diff --git a/src/stats.c b/src/stats.c
index e4e13378..e2a1100c 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -249,6 +249,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i) {
 	COL(nmalloc, right, 13, uint64)
 	COL(ndalloc, right, 13, uint64)
 	COL(nrequests, right, 13, uint64)
+	COL(nshards, right, 9, unsigned)
 	COL(curregs, right, 13, size)
 	COL(curslabs, right, 13, size)
 	COL(regs, right, 5, unsigned)
@@ -293,7 +294,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i) {
 		uint64_t nslabs;
 		size_t reg_size, slab_size, curregs;
 		size_t curslabs;
-		uint32_t nregs;
+		uint32_t nregs, nshards;
 		uint64_t nmalloc, ndalloc, nrequests, nfills, nflushes;
 		uint64_t nreslabs;
 
@@ -310,6 +311,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i) {
 		CTL_M2_GET("arenas.bin.0.size", j, &reg_size, size_t);
 		CTL_M2_GET("arenas.bin.0.nregs", j, &nregs, uint32_t);
 		CTL_M2_GET("arenas.bin.0.slab_size", j, &slab_size, size_t);
+		CTL_M2_GET("arenas.bin.0.nshards", j, &nshards, uint32_t);
 
 		CTL_M2_M4_GET("stats.arenas.0.bins.0.nmalloc", i, j, &nmalloc,
 		    uint64_t);
@@ -383,6 +385,7 @@ stats_arena_bins_print(emitter_t *emitter, bool mutex, unsigned i) {
 		col_nmalloc.uint64_val = nmalloc;
 		col_ndalloc.uint64_val = ndalloc;
 		col_nrequests.uint64_val = nrequests;
+		col_nshards.unsigned_val = nshards;
 		col_curregs.size_val = curregs;
 		col_curslabs.size_val = curslabs;
 		col_regs.unsigned_val = nregs;
@@ -1143,6 +1146,10 @@ stats_general_print(emitter_t *emitter) {
 			emitter_json_kv(emitter, "slab_size", emitter_type_size,
 			    &sv);
 
+			CTL_M2_GET("arenas.bin.0.nshards", i, &u32v, uint32_t);
+			emitter_json_kv(emitter, "nshards", emitter_type_uint32,
+			    &u32v);
+
 			emitter_json_object_end(emitter);
 		}
 		emitter_json_array_end(emitter); /* Close "bin". */
diff --git a/test/unit/mallctl.c b/test/unit/mallctl.c
index 452d884d..039a8810 100644
--- a/test/unit/mallctl.c
+++ b/test/unit/mallctl.c
@@ -706,6 +706,7 @@ TEST_BEGIN(test_arenas_bin_constants) {
 	TEST_ARENAS_BIN_CONSTANT(uint32_t, nregs, bin_infos[0].nregs);
 	TEST_ARENAS_BIN_CONSTANT(size_t, slab_size,
 	    bin_infos[0].slab_size);
+	TEST_ARENAS_BIN_CONSTANT(uint32_t, nshards, bin_infos[0].n_shards);
 
 #undef TEST_ARENAS_BIN_CONSTANT
 }